New GMC owner

kmorefield

Member
Jan 4, 2020
62
6
8
So my 84 year old grandpa is giving me his 1975 GMC Motorhome! He really doesn't use it, and is getting to old and broken to want to deal with it.
I'm rapidly learning as much as I can about these awesome rigs! To my untrained eye, it looks VERY clean. It has some issues with getting gas from
the tanks to the carb - it probably needs new fuel lines at a minimum. Possibly some fuel pump issues... it starts and runs fine on a small tank of
fuel strapped to the front.

The interior can use some cleaning and updating for sure. It absolutely needs new tires. So begins the journey!
 
You are starting in the right direction by replacing everything that is
rubber. There will be other things to check, too, but fuel lines and tires
go bad just sitting there.

Rick “welcome to the asylum” Denney

On Sat, Jan 4, 2020 at 12:24 AM Ken Morefield via Gmclist <

> So my 84 year old grandpa is giving me his 1975 GMC Motorhome! He really
> doesn't use it, and is getting to old and broken to want to deal with it.
> I'm rapidly learning as much as I can about these awesome rigs! To my
> untrained eye, it looks VERY clean. It has some issues with getting gas
> from
> the tanks to the carb - it probably needs new fuel lines at a minimum.
> Possibly some fuel pump issues... it starts and runs fine on a small tank of
> fuel strapped to the front.
>
> The interior can use some cleaning and updating for sure. It absolutely
> needs new tires. So begins the journey!
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
'73 X-Glacier 230 "Jaws"
Northern Virginia
Offlist email: rick at rickdenney dot com
 
Ken M.:
Welcome to the group!
You are headed in the right direction - replacement of all rubber items in/on your new found coach is a must in order to enjoy driving her.
Good Luck and we look forward to seeing you down the road.
Mike/The Corvair a holic
76 Eleganza II 26’ - my best.
76 Glenbrook 28’ - 2’ stretch at rear - also road ready.
78 Glenbrook - project coach.

Sent from my iPhone

>
> You are starting in the right direction by replacing everything that is
> rubber. There will be other things to check, too, but fuel lines and tires
> go bad just sitting there.
>
> Rick “welcome to the asylum” Denney
>
> On Sat, Jan 4, 2020 at 12:24 AM Ken Morefield via Gmclist <

>
>> So my 84 year old grandpa is giving me his 1975 GMC Motorhome! He really
>> doesn't use it, and is getting to old and broken to want to deal with it.
>> I'm rapidly learning as much as I can about these awesome rigs! To my
>> untrained eye, it looks VERY clean. It has some issues with getting gas
>> from
>> the tanks to the carb - it probably needs new fuel lines at a minimum.
>> Possibly some fuel pump issues... it starts and runs fine on a small tank of
>> fuel strapped to the front.
>>
>> The interior can use some cleaning and updating for sure. It absolutely
>> needs new tires. So begins the journey!
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> --
> '73 X-Glacier 230 "Jaws"
> Northern Virginia
> Offlist email: rick at rickdenney dot com
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Welcome! Be sure to set up a signature file to let everyone know what kind of coach you have and where you hail from, the better to help you get
questions answered quickly. If you'd like to further expand your presence in the community there are several active Facebook groups, including Classic
GMC Motorhomes, and there's also a new message forum at GMCMHforum.com. Best of luck to you with your new adventure; there's nothing in the world
quite like a GMC Motorhome.
--
Christo Darsch
GMC Nor'easters
1977 Eleganza II - "The Komet"
3.50 Power Drive, Disc Brakes, Alcoas
Weymouth, MA
 
Don’t forget the mechanical fuel pump and tank selector switch, as the
rubber is deteriateD and the Ethanal is going to finish it.
Also the vapor separator is brittle inside and out.
Should you have any concers, call ME anytime so I can assist you, n/c for
phone assistance and you never obligated to purchase anything. (800)
752-7502

On Sat, Jan 4, 2020 at 9:42 AM Richard Denney via Gmclist <

> You are starting in the right direction by replacing everything that is
> rubber. There will be other things to check, too, but fuel lines and tires
> go bad just sitting there.
>
> Rick “welcome to the asylum” Denney
>
> On Sat, Jan 4, 2020 at 12:24 AM Ken Morefield via Gmclist <

>
> > So my 84 year old grandpa is giving me his 1975 GMC Motorhome! He really
> > doesn't use it, and is getting to old and broken to want to deal with it.
> > I'm rapidly learning as much as I can about these awesome rigs! To my
> > untrained eye, it looks VERY clean. It has some issues with getting gas
> > from
> > the tanks to the carb - it probably needs new fuel lines at a minimum.
> > Possibly some fuel pump issues... it starts and runs fine on a small
> tank of
> > fuel strapped to the front.
> >
> > The interior can use some cleaning and updating for sure. It absolutely
> > needs new tires. So begins the journey!
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> --
> '73 X-Glacier 230 "Jaws"
> Northern Virginia
> Offlist email: rick at rickdenney dot com
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmcrvparts.com
1-800-752-7502
 
84,

Welcome to the group, family, cult, asylum.

You found your way here and that is very good.
Yes, there are other groups and all have their usefulness. The preponderance of expertise is here, but the new GMC Forum is
developing nicely and is supplying reliable advice. There are also multiple pages on Facebook that are GMC or RV centered, but be very cautious there
as I have seen new owners follow critical advice there and the result left the coach so salvage was not economic.

If there is any service documentation you do not have, it can all be downloaded at the GMCMI site. In actual fact, between there as Bdub's GMC site
there is no information that you can't get. We haven't figured out how to download parts yet.....

When you get to doing things, remember that an airbag (airspring) can let go at any time. When they go down, there isn't room for a snake to get
under there. That means NEVER_EVER get under the coach when it is not solidly supported. When you start to do things under it find a good working
pad, hopefully concrete, and buy a three ton floor jack and a brace of similar jack stands. The manual will show where they go. I do not know if the
manual says this, but do not jack the rear if the front is on jack stands, if the front can't float then there is a good chance that you will crack a
wind shield. Again, if you have questions or need advice. Do a short search of this board and then ask.

JimK suggested that you call him if you need advice, put his number in your phone and take him up on this offer. His company is also real good at
supplying the correct parts. If you are as well tuned to locating parts as I am (after 50+ in the business) you may be able to track them down, but
even my score rate is not that good. Just go there.

Do not get discouraged by the amount of work that even this coach may need. There is very little of the needed work that cannot be done by anyone
that can read and follow instruction. (There is no software to debug.) California shops are over 100$/hr. With that for cash support, you can buy
the tools to do the job right. You can also borrow some TZE specific tools from people here, and other at storefront parts places (like the pullers
and such). Remember, with few exceptions (Like five in the whole country) you will be hard pressed to find anybody that you can hire that will know
as much about the coach as you do and there is little chance that they will care as much.

We have a standard line here...
A reliable and ready to travel coach will cost you about 30K$us. What it does not say is that sweat gets billed in at shop rate (remember the
100$/hr?). Many of us can testify that this is accurate. Most of us paid between 5K and 10K for the as-is coach and few have gotten by for less.
You have one real big head start there guy. Grab the handles and hold on tight.

You will need to get the tanks down to do the fuel line replacement. There are drain plugs in the forward left corner of both tanks. They need a
large hex drive to undo, but there is at best a 50% chance that they will still unscrew. Well worth a try, but I have heard that some have sheared
the drain plug fitting out of the tank, so caution is advised. Plan to replace all the fuel and vent lines while you are at it. And the tank
selector valve as well. When you get to this job, get back to me. For reasons I don't chose to explain again, I have had my tanks down a number of
times and also have some advice about the job and a good mod or two while you are there.

You have already been advised to build a good sigfile. Please do this as it makes things better for both you and us. To do this go to , then and look for the "Signature" box. Please put in your real name (so when we meet we will know who you
are), a short about the coach (year and major mods if any) as there were production changes and some matter a lot and finally a geographic reference
(the half that get this board as email never saw the Redding) and you may have a brand new old friend in striking range.

Now, be aware that everybody in this community has a "not so hidden" agenda. That is to see to it that you get to understand what this coach can do
for you and where it can take you. This is a helping and supportive community that you may never have experienced the like of before. Do not be put
off. The only other community that I know of that is like this is that of the watermen of my world. For this reason, I have taken to welcome any new
owners I see come aboard much as he might be greeted there. So,

May the Good Lord bless this coach and all those that set forth within her.

Welcome Ken,

Matt

--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
Welcome, Toyota Person. Pay attention to what's been said here, particularly Jimmy the K and Matt. Both have a pretty good idea of what they're
doing. Let us know who you are and what's been upgraded on your coach. I suspect there are a pretty good handful of GMC owners within a reasonable
distance of you, but until you do the sigfile, many of them don't know it.

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
Matt,
Tks for mentioning me as a source for technical help and parts.
I do spend lot of time assisting people with their coach issues.
I do not know everything, but I do know people that are very experienced in
various areas and they respect me enough to take time to support us.
I am committed to help anyone that reach out to me and it gives me a good
feeling that I was able to assist.
Our parts dept is manned by Nick and Gary and should they feel there are
questions they are not sure about they will refer them to me.
I do make myself available from 7:30am— 9:30pm West coast time

On Sun, Jan 5, 2020 at 9:31 AM Johnny Bridges via Gmclist <

> Welcome, Toyota Person. Pay attention to what's been said here,
> particularly Jimmy the K and Matt. Both have a pretty good idea of what
> they're
> doing. Let us know who you are and what's been upgraded on your coach. I
> suspect there are a pretty good handful of GMC owners within a reasonable
> distance of you, but until you do the sigfile, many of them don't know it.
>
> --johnny
> --
> Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> I forgive them all, save those who hurt the dogs. They must answer to me
> in hell
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmcrvparts.com
1-800-752-7502
 
Thanks all for the words of advice! Here are a few photos that I took of the motorhome.

--
1975 - 26' - Model not known (I haven't checked the glovebox).
Unsure of what upgrades may have been done. I'm working on sorting that out in the coming months.
Ken Morefield - Redding, CA
 
Ken,

Good start on a sigfile.

To know a lot more about her, go to https://www.gmcmi.com/gmcmh-basic-information/ and decode the serial number that is on the plate under the right
engine hatch.

If you can, it would be a good idea do try to figure out how many miles she has really been. We don't know an actual limit, but they seem to get hard
to keep up with when they are over 300K.

'75 was a year with a lot of transitions. It may still have a points type distributor.
If it does not have the huge cap of HEI, I have a specific recommendation. Buy a Pertronix 1181LS to replace the points.
If it is HEI, acquire replacement parts for everything under that cap and carry the tools to replace them.

If you do not have one, start both a travel and a maintenance log. If you are like everybody else here, all of that will be a blur in what will seem
to be a very short time. "Mary, what year did we go to ????" "Is the house bank really 11 years old?"

Even if you are not the world's greatest technician, there is (almost) nothing that she will need that you cannot do. The advantage of doing it
yourself, is that it will get done right the first time, and you will know that much more about her and have even more confidence to travel amazing
places.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
Looks like grandpa knew what he was doing...congrats and welcome.
My usual piece is to bring to your attention you want aluminum cones in the rear air bags. My 1975 had plastic when I bought it and one did break and
cut the bag on its way 20 feet from my parked coach. Still glad I was not driving. Tap with wrench for metal sound, color, and ribs or not in the
recess.
Use the search function on this forum to find that info and practice for the thousand next questions you will have!

--
1975 Glenbrook, 1978 Royale rear bath
Raleigh, NC
 
What a gift :) Congrats!!!.
It looks great. Like any unit out there it will need some attention, but you surely have a good start with known history and what looks like - a well
kept coach.

--
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
 
Somebody has a cool Grandpa!

My focus with our new coach was safety first - brakes and bearings first, tires, then motor stuff. After that we drove it a good deal to get
comfortable with it before doing anything else. I've since added fuel injection and Jim K just rebuilt the front suspension. She rides down the road
nicely now. We've had it about 10 years and my biggest regret is that we didn't have it sooner.

--
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy