Plasma spray build up (was Front wheel bearings)

M

mark grady

New member
May 2, 1998
460
0
0
> Has anyone tried to renew the hubs using the spray metal technique and
> having them remachined?

Tom --

I had that done to one of my hubs about 6 years ago when I first got our
coach. My brother-in-law/ace mechanic was concerned that the bearings might
need to be replaced. (The coach had 42k original miles) The right bearing
had been replaced at some point, and not by the book, if you know what I
mean. The bearings were really pretty good, but the hub wasn't.

I had it renewed with the plasma spray technique and was very happy with the
results. He had an 'official' GM/Olds tool set and we did it by the book
when it went back together. We used a press.

I'm due to have a look at these bearings again sometime this summer, so I
can't tell you till then how it held up, but I don't think there's going to
be a problem.

I've got 36k on these bearings now, which is more than the 20k I've heard as
the max before they're re-greased or replaced.

Sounds like you had the wrong bearings, poorly installed with low quality
grease. How long do you think they've been in service?

Mark Grady
'77 Kingsley
 
Probably for almost the life of the coach. Who knows! In my opinion this
may what is behind all of these stories about bearing failures. Without the
right equipment they could not be taken off except by burning with a torch.
I do not like to do that however as it is hard to tell what effect it has on
the metal. Therefore since the average owner without the right tools just
keeps driving the coach telling themselves they will have it done when they
find the right repair shop. In Northern New York where I am, do not know
where that would be.

>
>> Has anyone tried to renew the hubs using the spray metal technique and
>> having them remachined?
>
>Tom --
>
>I had that done to one of my hubs about 6 years ago when I first got our
>coach. My brother-in-law/ace mechanic was concerned that the bearings might
>need to be replaced. (The coach had 42k original miles) The right bearing
>had been replaced at some point, and not by the book, if you know what I
>mean. The bearings were really pretty good, but the hub wasn't.
>
>I had it renewed with the plasma spray technique and was very happy with the
>results. He had an 'official' GM/Olds tool set and we did it by the book
>when it went back together. We used a press.
>
>I'm due to have a look at these bearings again sometime this summer, so I
>can't tell you till then how it held up, but I don't think there's going to
>be a problem.
>
>I've got 36k on these bearings now, which is more than the 20k I've heard as
>the max before they're re-greased or replaced.
>
>Sounds like you had the wrong bearings, poorly installed with low quality
>grease. How long do you think they've been in service?
>
>Mark Grady
>'77 Kingsley
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
 
Mine have been sprayed and machined. Let me know what shape they are
in when you tear them down.So far I've only got 5k miles on them .
herm

>

>
> > Has anyone tried to renew the hubs using the spray metal technique
and
> > having them remachined?
>
> Tom --
>
> I had that done to one of my hubs about 6 years ago when I first got
our
> coach. My brother-in-law/ace mechanic was concerned that the
bearings might
> need to be replaced. (The coach had 42k original miles) The right
bearing
> had been replaced at some point, and not by the book, if you know
what I
> mean. The bearings were really pretty good, but the hub wasn't.
>
> I had it renewed with the plasma spray technique and was very happy
with the
> results. He had an 'official' GM/Olds tool set and we did it by the
book
> when it went back together. We used a press.
>
> I'm due to have a look at these bearings again sometime this summer,
so I
> can't tell you till then how it held up, but I don't think there's
going to
> be a problem.
>
> I've got 36k on these bearings now, which is more than the 20k I've
heard as
> the max before they're re-greased or replaced.
>
> Sounds like you had the wrong bearings, poorly installed with low
quality
> grease. How long do you think they've been in service?
>
> Mark Grady
> '77 Kingsley
>
>

_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com
 
My hubs have marks where the bearing at some time in the past seized and
left marks on it. Not deep but enough to have caused the bearing to be real
tough to get off. As long as I have every thing off might as well do them
right.

How much should the plasma coating and re-machining cost?

>Mine have been sprayed and machined. Let me know what shape they are
>in when you tear them down.So far I've only got 5k miles on them .
>herm
>
>
>
>

>>

>>
>> > Has anyone tried to renew the hubs using the spray metal technique
>and
>> > having them remachined?
>>
>> Tom --
>>
>> I had that done to one of my hubs about 6 years ago when I first got
>our
>> coach. My brother-in-law/ace mechanic was concerned that the
>bearings might
>> need to be replaced. (The coach had 42k original miles) The right
>bearing
>> had been replaced at some point, and not by the book, if you know
>what I
>> mean. The bearings were really pretty good, but the hub wasn't.
>>
>> I had it renewed with the plasma spray technique and was very happy
>with the
>> results. He had an 'official' GM/Olds tool set and we did it by the
>book
>> when it went back together. We used a press.
>>
>> I'm due to have a look at these bearings again sometime this summer,
>so I
>> can't tell you till then how it held up, but I don't think there's
>going to
>> be a problem.
>>
>> I've got 36k on these bearings now, which is more than the 20k I've
>heard as
>> the max before they're re-greased or replaced.
>>
>> Sounds like you had the wrong bearings, poorly installed with low
>quality
>> grease. How long do you think they've been in service?
>>
>> Mark Grady
>> '77 Kingsley
>>
>>
>
>_________________________________________________________
>DO YOU YAHOO!?
>Get your free @yahoo.com address at http://mail.yahoo.com
>
>
>
Tom & Marg Warner
Vernon Center NY
1976 palmbeach
 
This is how Ken Thoma repairs hubs and he sleeves knuckles with harder
material. Don't remember the prices tho.
Ted Schurman
73 Glacier VA

>
> My hubs have marks where the bearing at some time in the past seized and
> left marks on it. Not deep but enough to have caused the bearing to be real
> tough to get off. As long as I have every thing off might as well do them
> right.
>
> How much should the plasma coating and re-machining cost?
>

> >Mine have been sprayed and machined. Let me know what shape they are
> >in when you tear them down.So far I've only got 5k miles on them .
> >herm
> >
> >
> >
> >

> >>

> >>
> >> > Has anyone tried to renew the hubs using the spray metal technique
> >and
> >> > having them remachined?
> >>
> >> Tom --
> >>
> >> I had that done to one of my hubs about 6 years ago when I first got
> >our
> >> coach. My brother-in-law/ace mechanic was concerned that the
> >bearings might
> >> need to be replaced. (The coach had 42k original miles) The right
> >bearing
> >> had been replaced at some point, and not by the book, if you know
> >what I
> >> mean. The bearings were really pretty good, but the hub wasn't.
> >>
> >> I had it renewed with the plasma spray technique and was very happy
> >with the
> >> results. He had an 'official' GM/Olds tool set and we did it by the
> >book
> >> when it went back together. We used a press.
> >>
> >> I'm due to have a look at these bearings again sometime this summer,
> >so I
> >> can't tell you till then how it held up, but I don't think there's
> >going to
> >> be a problem.
> >>
> >> I've got 36k on these bearings now, which is more than the 20k I've
> >heard as
> >> the max before they're re-greased or replaced.
> >>
> >> Sounds like you had the wrong bearings, poorly installed with low
> >quality
> >> grease. How long do you think they've been in service?
> >>
> >> Mark Grady
> >> '77 Kingsley
> >>
> >>
> >
> >_________________________________________________________
> >DO YOU YAHOO!?
> >Get your free @yahoo.com address at http://mail.yahoo.com
> >
> >
> >
> Tom & Marg Warner
> Vernon Center NY
> 1976 palmbeach
 
You must log in or register to reply here.
Applied GMC
GMCMI Fall 2026 Rally

Share this page

Share this page
Top Bottom
Back