Home » Public Forums » GMCnet » Re: [GMCnet] Frame Repair
| Re: [GMCnet] Frame Repair [message #66334] |
Wed, 02 December 2009 05:15  |
David L Greenberg
Messages: 899
Registered: January 2004
Location: Port St Lucie, FL
Karma: 0
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Senior Member |
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I am in awe of anyone who has the know how AND the guts to undertake a
project like this...way to go Adrien!
Dave-Career Pencil Pusher-Greenberg
On Wed, 02 Dec 2009 00:52:56 -0600 Adrien Genesoto <fixman54@syix.com>
writes:
>
>
> Tony,
> My center frame was rusted through in several places. Removed it and
> made all but 3 of the cross members new.
> I drove it up on ramps, raised the front, secured it with stand to
> be safe to work underneath, disconnected fuel lines, cut the rusted
> brake line, remove the torsion rods, anything that connects to the
> front section.
>
> The air lines and the holding tank minus dump tube was left attached
> to the body.
> Jacked the back of the coach, a little each side, high enough to
> clear the boggies, under the body, when dragging the frame out
> (yours are off already) plus 6 inches. Removed 6 body mounts and
> loosen the front.
>
> Used 4x4 and jack stands, on the outside of the rails to support the
> body. The jack stands where lag screwed to the 4x4.
>
> When I felt comfortable that it would be safe, unbolted the front,
> lowered the frame in the rear while forcing it of the front section.
> Support the rear engine cross member.
>
> For the rails I used a 6x6x .187 wall square tube sawed in half.
> Used 3 thin cut off wheel, for steel cutting. The best old rail was
> laid back to back to transfer the bolt holes to one new rail, then
> the new rails back to back. a drill press is nice, but you can rent
> a mag drill also.
>
> The cross members are formed from 3/16" flat stock.
> I clamped caster wheels to the frame to roll it under the coach.
>
> The more that you cam figure how to do it yourself, the easier on
> the pocket book.
>
> Hope this can help you or someone else.
> --
> Adrien
> 75 Glenbrook
> Yuba City,Ca.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
>
David Lee Greenberg
Port St Lucie, FL
Dedicated to the Preservation of the Classic GMC Motorhome
http://GMCmhRegistry.com
48 Packard Super Eight http://www.picturetrail.com/gmcregistry
____________________________________________________________
Love Spell
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Dave Greenberg
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| Re: [GMCnet] Frame Repair [message #66346 is a reply to message #66334] |
Wed, 02 December 2009 10:36  |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""I am in awe of anyone who has the know how AND the guts to undertake a
project like this...way to go Adrien!
Dave-Career Pencil Pusher-Greenberg""
No Kidding--I'm worn out just reading about it!!!
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] Frame Repair [message #66349 is a reply to message #66334] |
Wed, 02 December 2009 10:40 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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Senior Member |
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When doing frame repair or replacement, I would strongly recommend that if
there is any other mechanical work to be done, that this is the time to do
it all. Lifting the body off the chassis gives much easier access to all the
mechanical items. Yes it is lots of work, but everything is much easier to
work on when the body isn't in the way! If you are on a tight budget, and
can only tackle problems one at a time, then the other methods may be
better. The final result will be more time and money spent. Doing it all at
once in one fell swoop is always cheaper in the long run.
I am about to undertake the frame replacement on my own coach. I'll be
having the frame components produced locally. I'll also be overhauling the
suspension, steering, brake system, fuel system, & exhaust as well as doing
some engine and transmission work. Holding tanks and plumbing will also be
overhauled.
When I'm done, I'm hoping my coach will be good for the next 10-15 years
with only regular mechanical maintenance. It's all going to put a big hole
my wallet right now, but I'll feel much more confident later when many miles
from home.
Another valid point I feel is worth mentioning. Every year, more and more
parts are getting harder to find. Our specialty suppliers are doing a good
job of keeping us alive, but they all admit that it is getting tougher to do
business. If you know that your coach needs something done, do it sooner
rather than later, as parts get harder to source, the price typically also
goes up. Getting your coach in top shape now saves you money and headaches
later.
Just my 2 cents,
Les Burt
Montreal
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of David L Greenberg
Sent: December 2, 2009 6:16 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Frame Repair
I am in awe of anyone who has the know how AND the guts to undertake a
project like this...way to go Adrien!
Dave-Career Pencil Pusher-Greenberg
On Wed, 02 Dec 2009 00:52:56 -0600 Adrien Genesoto <fixman54@syix.com>
writes:
>
>
> Tony,
> My center frame was rusted through in several places. Removed it and
> made all but 3 of the cross members new.
> I drove it up on ramps, raised the front, secured it with stand to
> be safe to work underneath, disconnected fuel lines, cut the rusted
> brake line, remove the torsion rods, anything that connects to the
> front section.
>
> The air lines and the holding tank minus dump tube was left attached
> to the body.
> Jacked the back of the coach, a little each side, high enough to
> clear the boggies, under the body, when dragging the frame out
> (yours are off already) plus 6 inches. Removed 6 body mounts and
> loosen the front.
>
> Used 4x4 and jack stands, on the outside of the rails to support the
> body. The jack stands where lag screwed to the 4x4.
>
> When I felt comfortable that it would be safe, unbolted the front,
> lowered the frame in the rear while forcing it of the front section.
> Support the rear engine cross member.
>
> For the rails I used a 6x6x .187 wall square tube sawed in half.
> Used 3 thin cut off wheel, for steel cutting. The best old rail was
> laid back to back to transfer the bolt holes to one new rail, then
> the new rails back to back. a drill press is nice, but you can rent
> a mag drill also.
>
> The cross members are formed from 3/16" flat stock.
> I clamped caster wheels to the frame to roll it under the coach.
>
> The more that you cam figure how to do it yourself, the easier on
> the pocket book.
>
> Hope this can help you or someone else.
> --
> Adrien
> 75 Glenbrook
> Yuba City,Ca.
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
>
David Lee Greenberg
Port St Lucie, FL
Dedicated to the Preservation of the Classic GMC Motorhome
http://GMCmhRegistry.com
48 Packard Super Eight http://www.picturetrail.com/gmcregistry
____________________________________________________________
Love Spell
Click here to light up your life with a love spell!
http://thirdpartyoffers.juno.com/TGL2141/c?cp=ItPVjDlhksv_cFkpAiOouQAAJ1Csyv
5OnZl2mKFYY98JLnqKAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAAARwAAAAA=
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] Frame Repair [message #66364 is a reply to message #66349] |
Wed, 02 December 2009 13:18 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| Les Burt wrote on Wed, 02 December 2009 08:40 |
... Another valid point I feel is worth mentioning. Every year, more and more parts are getting harder to find. Our specialty suppliers are doing a good job of keeping us alive, but they all admit that it is getting tougher to do business. ...
|
Besides business issues, quite a few of our suppliers are getting older... I hope there is some type of informal "apprentice" type system to capture the knowledge.
Pick your system/item: engine, tranny, suspension parts, carburetors, screen doors and ect.... It wouldn't be any good to have a business need and a market but no one who knew how to do the work!
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Frame Repair [message #66490 is a reply to message #66355] |
Thu, 03 December 2009 11:28 |
GMC_LES
Messages: 569
Registered: October 2009
Location: Montreal
Karma: 0
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Senior Member |
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Scott,
Yes I'm going to replace the frame rails. I did a thorough inspection and
found that the rails and bogie "H" frame are still solid enough to survive a
few more years of service. There is some flairing, but nothing terrible.
Overall I'm quite amazed at how little rust I actually found under the
coach. Most of the underside still shows the original surface finish. I had
to pressure wash a good bit of road dirt off the underside to actually see
anything in detail though.
There are 3 reasons I've decided to do the frame.
1- The rear subframe is rotten on both sides due to sitting on the ground
for 5 years.
2- The left leg of the front sub-frame where it bolts to the frame rail is
rotten. The rot is only visible when looking at the inside of the frame rail
while lying under the coach. I need to cut out and replace the rotten
section(about a 4x6" piece). To get to that area, I need to separate the
frame rails from the sub-frame.
3- I need to completely redo the front suspension, bogie pins, exhaust, as
well as the fuel and brake lines. The body isolation pads are so-so, and I
may need to pull the tranny. The coach won't fit in my shop, but the frame
will. I want to go through the coach and make sure ALL the mechanicals are
top notch, so a frame-off rebuild makes some sense. While there, doing the
frame makes good sense.
Les Burt
Montreal
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
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Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress
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| Re: [GMCnet] Frame Repair [message #66514 is a reply to message #66490] |
Thu, 03 December 2009 15:06 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Les,
I would suggest that if you decide to replace the brake lines you get the
stainless steel ones from Tom Hampton. THEY FIT!
I got a set from Classic Tube and had a hell of a time making them fit.
Regards,
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Les Burt
Sent: Friday, 4 December 2009 4:28 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Frame Repair
3- I need to completely redo the front suspension, bogie pins, exhaust, as
well as the fuel and brake lines.
Les Burt
Montreal
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GMCnet mailing list
List Information and Subscription Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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