I am sending this out again because the subject has re-surfaced. It was
an excellent source of info that Dave Greenberg wrote a few months back.
I still have not totally figured out if mine has been done because I got
side tracked to the front end. It apparently is a very complex and
comprehensive recall. I think mine had been done but I'm not 100% sure.
It would be nice if there was an easy way to tell without getting into a
major inspection process.
Hope this helps.......
Regards, Phil
-
To: gmcmotorhome
Subject: Re: GMC: Dave Greenberg's "GMC Years"
From: davegreenberg1 (David L. Greenberg)
Date: Tue, 17 Feb 1998 11:39:11 EST
David Lee Greenberg
GMC Motorhome Registry
Delray Beach, FL
davegreenberg1
>Hi Dave,
>
> Sunday, you mentioned that "The smaller pins affected '73 and
>some
>'74 models, but most of them have been upgraded and there is still an
>active recall on those that haven't."
> Can you shed more light on this, specifically what pins are we
>talking about? How do I tell if mine are okay? I have a 1973 Canyon
>Lands 230 model. Are you aware of what weak points Bob Brewer is
>talking about in the early suspension? Are we only talking about the
>air supply system here or something more serious like ball joints,
>etc.?
The recall was mentioned in Cinnabar's newsletter of March '97. Call
Cinnabar's GMC Motorhome Assistance at 415/948-8664 and mention GMC
dealer Product Campaign 74-C-07. The recall affects all models
manufactured prior to May 1st, 1974. The parts to be replaced include
everything from the control arm out on the four rear axle assemblies.
You can inspect to see if your coach qualifies by measuring the diameter
of the axle spindle where it goes thru the backing plate. If the axle
spindle or the hole where the spindle goes thru the backing plate is
1.886 (1 7/8) inches +/- then the coach has not been sevices. If this
dimension is 2.256 in (2 1/4) +/_ then your coach has been serviced. The
newsletter recommends all four axles be inspected.
There are a number of GM dealers around the country who have been set up
to make the changes. I understand this gets you new brakes as well!
Having said all this...don't take any of the foregoing as gospel. Contact
Cinnabar and make sure the specs are correct before you do anthing!
>
> I found a weak point in my coach, the radiator. I just pulled
>mine
>to have it rodded out and the radiator shop told me that under
>pressure
>I have many pinhole leaks. Suggest other owners have theirs pressure
>checked before hot summer driving . If mine is shot, then I am sure
>many others are probably shot too because the previous owner took
>excellent care of the cooling system as evidenced by spotless water
>jackets in the engine. I had to have mine recored at a cost of $300
>which I feel is not too bad and it's cheap insurance. It is a monster
>sized radiator so that didn't seem too bad. It should go a long way
>in
>keeping both the engine and transmission cooler running. I did the R&R
>myself. It would cost double that to have it all done I think. The
>radiator is a bear to pull unless you are in there anyway. I did the
>fuel pump, water pump, fan belts, hoses, thermostat and rebuilt the
>alternator while I was in there. I stuck with the original water pump
>and just had it rebuilt with my core because rebuilts I checked at
>Napa
>had inferior castings and impellers. My rebuilder uses heavy duty
>ceramic seals and industrial bearings so it should outlast the
>motorhome.
>
>
>Phil Swanson
an excellent source of info that Dave Greenberg wrote a few months back.
I still have not totally figured out if mine has been done because I got
side tracked to the front end. It apparently is a very complex and
comprehensive recall. I think mine had been done but I'm not 100% sure.
It would be nice if there was an easy way to tell without getting into a
major inspection process.
Hope this helps.......
Regards, Phil
-
To: gmcmotorhome
Subject: Re: GMC: Dave Greenberg's "GMC Years"
From: davegreenberg1 (David L. Greenberg)
Date: Tue, 17 Feb 1998 11:39:11 EST
David Lee Greenberg
GMC Motorhome Registry
Delray Beach, FL
davegreenberg1
>Hi Dave,
>
> Sunday, you mentioned that "The smaller pins affected '73 and
>some
>'74 models, but most of them have been upgraded and there is still an
>active recall on those that haven't."
> Can you shed more light on this, specifically what pins are we
>talking about? How do I tell if mine are okay? I have a 1973 Canyon
>Lands 230 model. Are you aware of what weak points Bob Brewer is
>talking about in the early suspension? Are we only talking about the
>air supply system here or something more serious like ball joints,
>etc.?
The recall was mentioned in Cinnabar's newsletter of March '97. Call
Cinnabar's GMC Motorhome Assistance at 415/948-8664 and mention GMC
dealer Product Campaign 74-C-07. The recall affects all models
manufactured prior to May 1st, 1974. The parts to be replaced include
everything from the control arm out on the four rear axle assemblies.
You can inspect to see if your coach qualifies by measuring the diameter
of the axle spindle where it goes thru the backing plate. If the axle
spindle or the hole where the spindle goes thru the backing plate is
1.886 (1 7/8) inches +/- then the coach has not been sevices. If this
dimension is 2.256 in (2 1/4) +/_ then your coach has been serviced. The
newsletter recommends all four axles be inspected.
There are a number of GM dealers around the country who have been set up
to make the changes. I understand this gets you new brakes as well!
Having said all this...don't take any of the foregoing as gospel. Contact
Cinnabar and make sure the specs are correct before you do anthing!
>
> I found a weak point in my coach, the radiator. I just pulled
>mine
>to have it rodded out and the radiator shop told me that under
>pressure
>I have many pinhole leaks. Suggest other owners have theirs pressure
>checked before hot summer driving . If mine is shot, then I am sure
>many others are probably shot too because the previous owner took
>excellent care of the cooling system as evidenced by spotless water
>jackets in the engine. I had to have mine recored at a cost of $300
>which I feel is not too bad and it's cheap insurance. It is a monster
>sized radiator so that didn't seem too bad. It should go a long way
>in
>keeping both the engine and transmission cooler running. I did the R&R
>myself. It would cost double that to have it all done I think. The
>radiator is a bear to pull unless you are in there anyway. I did the
>fuel pump, water pump, fan belts, hoses, thermostat and rebuilt the
>alternator while I was in there. I stuck with the original water pump
>and just had it rebuilt with my core because rebuilts I checked at
>Napa
>had inferior castings and impellers. My rebuilder uses heavy duty
>ceramic seals and industrial bearings so it should outlast the
>motorhome.
>
>
>Phil Swanson
