Seat belts

R

ronald b. kazi

New member
Aug 6, 1999
523
0
0
I will be installing my front seats tommorow. Does anyone have a source
for seatbelts for my captains chairs? Only source I have is Salesco on
the net where I bought my seats and JC Whitney. IIRC JC Whitney has any
color you want as long as it is black. The belts run about $79 for the
extended 3-point belts from Salesco. I also need seven basic belts for
the dinette and the couch. Salesco has them for $19.99 on sale.

Ron and Julie
73 Painted Desert without Right Handed Dash
 
A month or so ago I remember reading someone's question about seat
belts, but naturally now that I need it I can't find it. Can someone
advise on where/how to anchor the sholder part of a three point seat
belt? Also, sources for replacement belts, either lap only or three
point?
Thanks,
Dave Thompson
Gloster, LA
76 Eleganza II
 
Here's some that oughta be helpful.
==========================================
Date: Tue, 23 Feb 1999 09:33:42 -0500
From: Thom Hole
Subject: Re: GMC: 3 point seat belts
In-Reply-To:
Mime-Version: 1.0

I am installing 3 point seat belts that came from a VW Vanagon. They are
design to be attached to a flat vertical wall (like the piller behind the
seat) go up to a moving pivot point (like the one at the top corner just
behind the window and then buckle into a stationary latch on the other side
of the seat. I am attaching the stationary part to the metal base for easy
access. This was were the only modification came into play. I had to bend
the metal braket out to fit at the side of the GMC seat.

Installaion required two 1/2 in holes (one for the inertia reel and one
tfor the pivot) and 2 small Sheet metal size holes for the cover for each
side. As a side note, They don't say 'VW' except on the inside of the
molded plastic parts.
======================================================
Date: Tue, 23 Feb 1999 10:53:24 -0700
From: Darren Paget
Subject: Re: GMC: 3 point seat belts
References:
Content-Transfer-Encoding: 7bit

Sorry no pictures. I'm not sure about getting the manufacturers rated
holding capacity of the seat belts, but I mounted a three point belt by
using the two stock locations on the floor and adding the shoulder harness
to the main structural vertical member just behind the seats. A piece of
metal was added to bridge the gap in the member by welding it to the
aluminum. This gave me my third point to mount to. Went to the wreckers and
obtained three point belts out of a GMC van. Darren
====================================================

bdub

>A month or so ago I remember reading someone's question about seat
>belts, but naturally now that I need it I can't find it. Can someone
>advise on where/how to anchor the sholder part of a three point seat
>belt? Also, sources for replacement belts, either lap only or three
>point?
>Thanks,
>Dave Thompson
>Gloster, LA
>76 Eleganza II
 
Just to add my 2 cents...When I added the 3 point belts, I was strongly
advised not to use the seat itself as an anchor point for the belts. I was
told the seat is not mounted strongly enough. I got my belts from a local
truck dealer, and they are specifically made to be mounted to the floor and
a frame member up high for the "3rd point". I also installed Bostrum air
ride seats with dual armrests and fully adjustable thigh and lumbar
supports. The air ride sure is comfy!
Tony B.

- ----- Original Message -----
From: Billy Massey
To:
Sent: Friday, January 07, 2000 10:47 AM
Subject: Re: GMC: Seat Belts

> Here's some that oughta be helpful.
> ==========================================
> Date: Tue, 23 Feb 1999 09:33:42 -0500
> From: Thom Hole
> Subject: Re: GMC: 3 point seat belts
> In-Reply-To:
> Mime-Version: 1.0
>
> I am installing 3 point seat belts that came from a VW Vanagon. They are
> design to be attached to a flat vertical wall (like the piller behind the
> seat) go up to a moving pivot point (like the one at the top corner just
> behind the window and then buckle into a stationary latch on the other
side
> of the seat. I am attaching the stationary part to the metal base for
easy
> access. This was were the only modification came into play. I had to bend
> the metal braket out to fit at the side of the GMC seat.
>
> Installaion required two 1/2 in holes (one for the inertia reel and one
> tfor the pivot) and 2 small Sheet metal size holes for the cover for each
> side. As a side note, They don't say 'VW' except on the inside of the
> molded plastic parts.
> ======================================================
> Date: Tue, 23 Feb 1999 10:53:24 -0700
> From: Darren Paget
> Subject: Re: GMC: 3 point seat belts
> References:
> Content-Transfer-Encoding: 7bit
>
> Sorry no pictures. I'm not sure about getting the manufacturers rated
> holding capacity of the seat belts, but I mounted a three point belt by
> using the two stock locations on the floor and adding the shoulder harness
> to the main structural vertical member just behind the seats. A piece of
> metal was added to bridge the gap in the member by welding it to the
> aluminum. This gave me my third point to mount to. Went to the wreckers
and
> obtained three point belts out of a GMC van. Darren
> ====================================================
>
> bdub
>
>
>
>
>

> >A month or so ago I remember reading someone's question about seat
> >belts, but naturally now that I need it I can't find it. Can someone
> >advise on where/how to anchor the sholder part of a three point seat
> >belt? Also, sources for replacement belts, either lap only or three
> >point?
> >Thanks,
> >Dave Thompson
> >Gloster, LA
> >76 Eleganza II
>
>
 
I made some brackets which are to be attached to the main framing member
which is directly behind the seats to mount the third point on. I will
be using the original mounting hole on the inboard side of each seat.
Brackets were also manufactured for the lower position on the outboard
side. I am using complete new belt assemblies for a 1993, Ford,
Aerostar. They are long enough and easy to get. I only need to put it
all together. It works great on the mockup so it should be perfect for
my GM. Darren

> A month or so ago I remember reading someone's question about seat
> belts, but naturally now that I need it I can't find it. Can someone
> advise on where/how to anchor the sholder part of a three point seat
> belt? Also, sources for replacement belts, either lap only or three
> point?
> Thanks,
> Dave Thompson
> Gloster, LA
> 76 Eleganza II

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
Why go to all this trouble jury-rigging a restraint system when you can now
get automotive seats (e. g. Chrysler, Mercedes, etc.) that have the 3-point
seat belt built into the seat??

Paul Bartz

From: Darren Paget [mailto:paget]
Sent: Friday, January 07, 2000 2:27 PM

I made some brackets which are to be attached to the main framing member
which is directly behind the seats to mount the third point on. I will be
using the original mounting hole on the inboard side of each seat.
Brackets were also manufactured for the lower position on the outboard side.
I am using complete new belt assemblies for a 1993, Ford Aerostar. They are
long enough and easy to get. I only need to put it all together. It works
great on the mockup so it should be perfect for my GM.

A month or so ago I remember reading someone's question about seat belts,
but naturally now that I need it I can't find it. Can someone advise on
where/how to anchor the sholder part of a three point seat belt? Also,
sources for replacement belts, either lap only or three point?

Dave Thompson
Gloster, LA
76 Eleganza II
 
Cost does become a factor at some point. I think the ones that attach through
the seat have to be anchored to the floor at some point. I also feel that my
attachment is stronger than the seat bolted to the floor of the motor home.
Whichever way you accomplish it it will take a lot of thought as to how far you
will risk your safety. Whatever we do with the seat belts will only be as
reliable as the way in which it is attached. The best way is to not crash. My
belts will hold me in in the event of a rollover which is important to me. A
crash at 30 mph or more, who knows. I expect to be hurtin if I do that. Unless
you have something engineered by a professional you can only modify to the
standard you feel is safe. Darren

> Why go to all this trouble jury-rigging a restraint system when you can now
> get automotive seats (e. g. Chrysler, Mercedes, etc.) that have the 3-point
> seat belt built into the seat??
>
> Paul Bartz
>
> From: Darren Paget [mailto:paget]
> Sent: Friday, January 07, 2000 2:27 PM
>
> I made some brackets which are to be attached to the main framing member
> which is directly behind the seats to mount the third point on. I will be
> using the original mounting hole on the inboard side of each seat.
> Brackets were also manufactured for the lower position on the outboard side.
> I am using complete new belt assemblies for a 1993, Ford Aerostar. They are
> long enough and easy to get. I only need to put it all together. It works
> great on the mockup so it should be perfect for my GM.
>

> A month or so ago I remember reading someone's question about seat belts,
> but naturally now that I need it I can't find it. Can someone advise on
> where/how to anchor the sholder part of a three point seat belt? Also,
> sources for replacement belts, either lap only or three point?
>
> Dave Thompson
> Gloster, LA
> 76 Eleganza II

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
A seat belt is only as good as it's anchor point. If you got a seat with
integral belts, you better put a couple of extra screws in the mounting or
you AND your seat will become a missile if you ever hit anything.

I was surprised how little held the seats in place when I removed mine. If I
remember my high school physics correctly, my body in motion would have
stayed in motion if I mounted the belts to the seat without some
reinforcements.

Tony

- ----- Original Message -----
From: Bartz, Paul
To:
Sent: Friday, January 07, 2000 2:41 PM
Subject: RE: GMC: Seat Belts

> Why go to all this trouble jury-rigging a restraint system when you can
now
> get automotive seats (e. g. Chrysler, Mercedes, etc.) that have the
3-point
> seat belt built into the seat??
>
> Paul Bartz
 
To all,
Be careful when you mix metals,if the shoulder anchor points are
welded/bolted to the body cage You will have galvanic deteration of the
bonding area.Look at any steel screws that attach any thing in our coachs to
the Cage and you will see what looks like rust in the later stage or
gaulling .May not be a problem for you but it seems that a Belt system using
floor mounts only would be the way to go.
This Galvanic action was one of the considerations when developing the
Viper,most of the Engr's.had worked on later designs of the Vette at GM.
Aircraft Grade Adhesive/Sealers appeared to hold promise at that time to
isolate via the sealer the two dissimeler metals.JUST BE VERY CAREFULL .

Jim Penrod Jus hangin out an bein cool in Lake Placis F.L.A.
 
Darren

There is an excellent article on installing GM van three-point seat belts
in a GMC in the March 1997 issue of GMC Motorhome Marketplace.

Al Hamilton
76 Eleganza II
Kingston, Ont
 
If you use stainless steel rivets or stainless steel screws or bolts and
fabricate the brackets out of stainless or aluminum you will not have this
problem. Darren

> To all,
> Be careful when you mix metals,if the shoulder anchor points are
> welded/bolted to the body cage You will have galvanic deteration of the
> bonding area.Look at any steel screws that attach any thing in our coachs to
> the Cage and you will see what looks like rust in the later stage or
> gaulling .May not be a problem for you but it seems that a Belt system using
> floor mounts only would be the way to go.
> This Galvanic action was one of the considerations when developing the
> Viper,most of the Engr's.had worked on later designs of the Vette at GM.
> Aircraft Grade Adhesive/Sealers appeared to hold promise at that time to
> isolate via the sealer the two dissimeler metals.JUST BE VERY CAREFULL .
>
> Jim Penrod Jus hangin out an bein cool in Lake Placis F.L.A.

- --

Darren Paget
76 Experimental
Another Fab Day
http://www.TZEplus.com
 
Thanks Al. I will check that one out. Any one have this article and could you
scan it to me? Thanks. Darren

> Darren
>
> There is an excellent article on installing GM van three-point seat belts
> in a GMC in the March 1997 issue of GMC Motorhome Marketplace.
>
> Al Hamilton
> 76 Eleganza II
> Kingston, Ont

- --

Darren Paget
76 Experimental
Another Fab Day
http://www.TZEplus.com
 
I worked in the aluminum yacht building business for five years at Derecktor
Shipyards, builder of the Stars and Stripes that won the Americas cup back from
the Fosters swigging boys from down under. IIRC we used alot of stainless bolts
with aluminum and we never had much problem. We did use gasket materials in some
high exposure locations . I dont think that in the relatively mild conditions
of the interior of a motorhome it would be as much of a factor as in a salt water
yacht. BICBW (But I Could Be Wrong).

Ron and Julie
73 Painted Desert

> Darren,
>
> IIRC, stainless steel is even more reactive to aluminum than regular carbon
> steel. A good practice when attaching aluminum and steel, is to first
> insulate the metals with a gasket between the two, seal the joint from
> moisture and use cadmium plated fasteners.
>
> You mentioned the process of fabricating the brackets from aluminum but
> would have to use aluminum bolts to eliminate the dissimilar metals all
> together. But, then the aluminum parts would have to be about 30% bigger than
> the steel ones to compensate for the reduced strength.
>
> Another approach is to fasten a sacrificial anode to the aluminum somewhere.
> Since aluminum corrosion does not seem to be a big problem on our coaches, I
> wonder if GM has already done this. I would like to learn more about this if
> anyone has information on this process.
>
> Dave Meekhof
> 73 GoBus 230
>
> In a message dated 1/8/2000 8:39:21 PM Eastern Standard Time,

>
> > ------------------------------
> >
> > Date: Sat, 08 Jan 2000 09:22:04 -0700
> > From: Darren Paget
> > Subject: Re: GMC: Seat Belts
> >
> > If you use stainless steel rivets or stainless steel screws or bolts and
> > fabricate the brackets out of stainless or aluminum you will not have this
> > problem. Darren
> >

> >
> > > To all,
> > > Be careful when you mix metals,if the shoulder anchor points are
> > > welded/bolted to the body cage You will have galvanic deteration of the
> > > bonding area.Look at any steel screws that attach any thing in our
> coachs
> > to
> > > the Cage and you will see what looks like rust in the later stage or
> > > gaulling .May not be a problem for you but it seems that a Belt system
> > using
> > > floor mounts only would be the way to go.
> > > This Galvanic action was one of the considerations when developing the
> > > Viper,most of the Engr's.had worked on later designs of the Vette at GM.
> > > Aircraft Grade Adhesive/Sealers appeared to hold promise at that time to
> > > isolate via the sealer the two dissimeler metals.JUST BE VERY CAREFULL .
> > >
> > > Jim Penrod Jus hangin out an bein cool in Lake Placis F.L.A.
> >
> > - --
> >
> >
> > Darren Paget
> > 76 Experimental
> > Another Fab Day
> > http://www.TZEplus.com
> >
> > ------------------------------
> >
 
I will check my notes but I don't think stainless reacts with aluminum.
Darren

> Darren,
>
> IIRC, stainless steel is even more reactive to aluminum than regular carbon
> steel. A good practice when attaching aluminum and steel, is to first
> insulate the metals with a gasket between the two, seal the joint from
> moisture and use cadmium plated fasteners.
>
> You mentioned the process of fabricating the brackets from aluminum but
> would have to use aluminum bolts to eliminate the dissimilar metals all
> together. But, then the aluminum parts would have to be about 30% bigger than
> the steel ones to compensate for the reduced strength.
>
> Another approach is to fasten a sacrificial anode to the aluminum somewhere.
> Since aluminum corrosion does not seem to be a big problem on our coaches, I
> wonder if GM has already done this. I would like to learn more about this if
> anyone has information on this process.
>
> Dave Meekhof
> 73 GoBus 230
>
> In a message dated 1/8/2000 8:39:21 PM Eastern Standard Time,

>
> > ------------------------------
> >
> > Date: Sat, 08 Jan 2000 09:22:04 -0700
> > From: Darren Paget
> > Subject: Re: GMC: Seat Belts
> >
> > If you use stainless steel rivets or stainless steel screws or bolts and
> > fabricate the brackets out of stainless or aluminum you will not have this
> > problem. Darren
> >

> >
> > > To all,
> > > Be careful when you mix metals,if the shoulder anchor points are
> > > welded/bolted to the body cage You will have galvanic deteration of the
> > > bonding area.Look at any steel screws that attach any thing in our
> coachs
> > to
> > > the Cage and you will see what looks like rust in the later stage or
> > > gaulling .May not be a problem for you but it seems that a Belt system
> > using
> > > floor mounts only would be the way to go.
> > > This Galvanic action was one of the considerations when developing the
> > > Viper,most of the Engr's.had worked on later designs of the Vette at GM.
> > > Aircraft Grade Adhesive/Sealers appeared to hold promise at that time to
> > > isolate via the sealer the two dissimeler metals.JUST BE VERY CAREFULL .
> > >
> > > Jim Penrod Jus hangin out an bein cool in Lake Placis F.L.A.
> >
> > - --
> >
> >
> > Darren Paget
> > 76 Experimental
> > Another Fab Day
> > http://www.TZEplus.com
> >
> > ------------------------------
> >

- --

Darren Paget
76 Experimental
Another Fab Day
http://www.TZEplus.com
 
Saved. Darren

>
> carbon
> steel. A good practice when attaching aluminum and steel, is to first
> insulate the metals with a gasket between the two, seal the joint from
> moisture and use cadmium plated fasteners.
> >>
>
> I have to disagree with the first part of this statement. I had owned a
> company from 1993 to 1998 that manufactured sun rooms and greenhouses using
> aluminum extrusions that screwed down to a wooden post and beam structure.
> We used stainless steel screws and bolts and had no corrosion problems
> whatsoever. This was often a very humid environment and sometimes included
> the use of hot tubs inside the structures.
>
> Once a supplier sent a supply of cadmium plated screws by mistake and the
> shop people used them without noticing the difference. For the next two
> years I was doing a lot of expensive warranty service because of the cadmium
> plated screws rusting very badly.
>
> Aluminum and stainless steel are actually very compatible. There are
> different grades of stainless available but I haven't found a problem with
> that normally used for screws. Over the years I have replaced many cadmium
> plated screws and chrome plated screws in the GMC that had rusted with
> stainless steel screws that have held up fine.
>
> If someone wants to test this just put a piece of aluminum with a cadmium
> plated screw attached to it into a jar of tap water and put another piece
> with a stainless steel screw into another jar and after a few days or weeks
> observe the difference.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM

- --

Darren Paget
76 Experimental
Another Fab Day
http://www.TZEplus.com
 
I agree with Emery, if you put cadmiun plated materials next to aluminum
you will have more corrosion than you want. They are both very reactive
with one another and in the presence of water accelerates corrosion
tremendously. Most stainless fasteners that you buy at the hardware are
304L or 316L stainless. These will not cause corrosion with aluminum.
You should only be using a stainless steel screws and bolts when
attaching or reattaching items to your GMC aluminum body work.
Galvanized Screws will cause corrosion in the screw holes.

J.R. Wright
GMC GreatLaker
77 Eleganza II
Michigan

>

>
> carbon
> steel. A good practice when attaching aluminum and steel, is to first
> insulate the metals with a gasket between the two, seal the joint from
> moisture and use cadmium plated fasteners.
> >>
>
> I have to disagree with the first part of this statement. I had owned a
> company from 1993 to 1998 that manufactured sun rooms and greenhouses using
> aluminum extrusions that screwed down to a wooden post and beam structure.
> We used stainless steel screws and bolts and had no corrosion problems
> whatsoever. This was often a very humid environment and sometimes included
> the use of hot tubs inside the structures.
>
> Once a supplier sent a supply of cadmium plated screws by mistake and the
> shop people used them without noticing the difference. For the next two
> years I was doing a lot of expensive warranty service because of the cadmium
> plated screws rusting very badly.
>
> Aluminum and stainless steel are actually very compatible. There are
> different grades of stainless available but I haven't found a problem with
> that normally used for screws. Over the years I have replaced many cadmium
> plated screws and chrome plated screws in the GMC that had rusted with
> stainless steel screws that have held up fine.
>
> If someone wants to test this just put a piece of aluminum with a cadmium
> plated screw attached to it into a jar of tap water and put another piece
> with a stainless steel screw into another jar and after a few days or weeks
> observe the difference.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
 
John,
Now you tell me! I used plated fasteners to attach the headliner
hardware during my recent headliner upgrade :-(
I supposed I should replace all those screws holding up my
headliner with stainless steel.

Richard Waters '76 PB, Troy, MI
- -------

> I agree with Emery, if you put cadmiun plated materials next to aluminum
> you will have more corrosion than you want. They are both very reactive
> with one another and in the presence of water accelerates corrosion
> tremendously. Most stainless fasteners that you buy at the hardware are
> 304L or 316L stainless. These will not cause corrosion with aluminum.
> You should only be using a stainless steel screws and bolts when
> attaching or reattaching items to your GMC aluminum body work.
> Galvanized Screws will cause corrosion in the screw holes.
>
> J.R. Wright
>
 
ok knock off the dirty talk ;>)

gene

>Tony,
>
>I'd love to hear more about the seats! Do you know if the manufacturer has
>a website? Oh, I can just feel the soft cushion pushin on my tusch'n!
>
>Larry Davick
>Enviously Lurking
>
>
>>From: "Tony Bad"
>>Reply-To: gmcmotorhome
>>To:
>>Subject: Re: GMC: Seat Belts
>>Date: Fri, 7 Jan 2000 11:42:31 -0500
>>
>>Just to add my 2 cents...When I added the 3 point belts, I was strongly
>>advised not to use the seat itself as an anchor point for the belts. I was
>>told the seat is not mounted strongly enough. I got my belts from a local
>>truck dealer, and they are specifically made to be mounted to the floor and
>>a frame member up high for the "3rd point". I also installed Bostrum air
>>ride seats with dual armrests and fully adjustable thigh and lumbar
>>supports. The air ride sure is comfy!
>>Tony B.
>>
>>----- Original Message -----
>>From: Billy Massey
>>To:
>>Sent: Friday, January 07, 2000 10:47 AM
>>Subject: Re: GMC: Seat Belts
>>
>>
>> > Here's some that oughta be helpful.
>> > ==========================================
>> > Date: Tue, 23 Feb 1999 09:33:42 -0500
>> > From: Thom Hole
>> > Subject: Re: GMC: 3 point seat belts
>> > In-Reply-To:
>> > Mime-Version: 1.0
>> >
>> > I am installing 3 point seat belts that came from a VW Vanagon. They
>>are
>> > design to be attached to a flat vertical wall (like the piller behind
>>the
>> > seat) go up to a moving pivot point (like the one at the top corner just
>> > behind the window and then buckle into a stationary latch on the other
>>side
>> > of the seat. I am attaching the stationary part to the metal base for
>>easy
>> > access. This was were the only modification came into play. I had to
>>bend
>> > the metal braket out to fit at the side of the GMC seat.
>> >
>> > Installaion required two 1/2 in holes (one for the inertia reel and one
>> > tfor the pivot) and 2 small Sheet metal size holes for the cover for
>>each
>> > side. As a side note, They don't say 'VW' except on the inside of the
>> > molded plastic parts.
>> > ======================================================
>> > Date: Tue, 23 Feb 1999 10:53:24 -0700
>> > From: Darren Paget
>> > Subject: Re: GMC: 3 point seat belts
>> > References:
>> > Content-Transfer-Encoding: 7bit
>> >
>> > Sorry no pictures. I'm not sure about getting the manufacturers rated
>> > holding capacity of the seat belts, but I mounted a three point belt by
>> > using the two stock locations on the floor and adding the shoulder
>>harness
>> > to the main structural vertical member just behind the seats. A piece of
>> > metal was added to bridge the gap in the member by welding it to the
>> > aluminum. This gave me my third point to mount to. Went to the wreckers
>>and
>> > obtained three point belts out of a GMC van. Darren
>> > ====================================================
>> >
>> > bdub
>> >
>> >
>> >
>> >
>> >

>> > >A month or so ago I remember reading someone's question about seat
>> > >belts, but naturally now that I need it I can't find it. Can someone
>> > >advise on where/how to anchor the sholder part of a three point seat
>> > >belt? Also, sources for replacement belts, either lap only or three
>> > >point?
>> > >Thanks,
>> > >Dave Thompson
>> > >Gloster, LA
>> > >76 Eleganza II
>> >
>> >
>
>______________________________________________________
>Get Your Private, Free Email at http://www.hotmail.com
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
The main point I was trying to convey,but apparently was unclear,if you have
any reaction at all the integrity of the attachment is compromised.Your not
talking about a screen porch,which in my almost 60 years ,I have not seen in
a traffic accident.your talking about you BUT.Again do what you feel
comfortable with.

Jim Penrod Jus hangin out an bein cool in Lake Placid F.L.A.
 
> -----Original Message-----
> From: owner-gmcmotorhome
> [mailto:owner-gmcmotorhome]On Behalf Of John R. Wright
> Sent: Sunday, January 09, 2000 1:15 PM
> To: gmcmotorhome
> Subject: Re: GMC: Seat Belts
>
ive been watching this post for sometime and wonder why all aircraft
manufactures use cadmium plated hardware .....every aircraft ive owned,
restored or worked on had cadmium plated hardware...and in some area's
stainless....this also applies to aircraft engines.....which have aluminum
cases, assy. sections and propellers......thats what i know......
jim white
78 EII

>
> I agree with Emery, if you put cadmium plated materials next to aluminum
> you will have more corrosion than you want. They are both very reactive
> with one another and in the presence of water accelerates corrosion
> tremendously. Most stainless fasteners that you buy at the hardware are
> 304L or 316L stainless. These will not cause corrosion with aluminum.
> You should only be using a stainless steel screws and bolts when
> attaching or reattaching items to your GMC aluminum body work.
> Galvanized Screws will cause corrosion in the screw holes.
>
> J.R. Wright
> GMC GreatLaker
> 77 Eleganza II
> Michigan
>
>

> >

> >
> > > carbon
> > steel. A good practice when attaching aluminum and steel, is to first
> > insulate the metals with a gasket between the two, seal the joint from
> > moisture and use cadmium plated fasteners.
> > >>
> >
> > I have to disagree with the first part of this statement. I had owned a
> > company from 1993 to 1998 that manufactured sun rooms and
> greenhouses using
> > aluminum extrusions that screwed down to a wooden post and beam
> structure.
> > We used stainless steel screws and bolts and had no corrosion problems
> > whatsoever. This was often a very humid environment and
> sometimes included
> > the use of hot tubs inside the structures.
> >
> > Once a supplier sent a supply of cadmium plated screws by
> mistake and the
> > shop people used them without noticing the difference. For the next two
> > years I was doing a lot of expensive warranty service because
> of the cadmium
> > plated screws rusting very badly.
> >
> > Aluminum and stainless steel are actually very compatible. There are
> > different grades of stainless available but I haven't found a
> problem with
> > that normally used for screws. Over the years I have replaced
> many cadmium
> > plated screws and chrome plated screws in the GMC that had rusted with
> > stainless steel screws that have held up fine.
> >
> > If someone wants to test this just put a piece of aluminum with
> a cadmium
> > plated screw attached to it into a jar of tap water and put
> another piece
> > with a stainless steel screw into another jar and after a few
> days or weeks
> > observe the difference.
> >
> > Emery Stora
> > 77 Kingsley
> > Santa Fe, NM
>
 
You must log in or register to reply here.
GMCMI Fall 2026 Rally
Get your shine on at www.cruzingear.co

Share this page

Share this page
Top Bottom
Back