GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Blowing off some steam
Blowing off some steam [message #349407] Fri, 18 October 2019 09:34 Go to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
Blowing off some steam. Sometimes it just helps to vent.

Replacing LH exhaust manifold. Wouldn't' be too bad except for the darned PS bracket. Oh well keep plugging away. At least I installed studs w/ long brass nuts instead of bolts. Only one that needs to come out is the center one.


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: Blowing off some steam [message #349408 is a reply to message #349407] Fri, 18 October 2019 11:18 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
Senior Member
I just replaced the exhaust side manifold on mine. I didn't have an issue with any PS bracket... maybe I'm missing one?

The center bolt broke off with about 1/8" sticking out. I just left it as is for now.

Biggest issue I had was getting my 3/8" torque wrench on it in a way that I could actually measure the torque applied ( used Remflex gaskets)


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
Re: [GMCnet] Blowing off some steam [message #349409 is a reply to message #349408] Fri, 18 October 2019 12:15 Go to previous messageGo to next message
Richard Denney is currently offline  Richard Denney   United States
Messages: 920
Registered: April 2010
Karma: 9
Senior Member
If you pull the inner fenders and front wheels, it’s MUCH easier to get
tools on the manifold bolts.

Rick “key word: easier” Denney

On Fri, Oct 18, 2019 at 12:18 PM Bruce Hislop via Gmclist <
gmclist@list.gmcnet.org>:

> ...
> Biggest issue I had was getting my 3/8" torque wrench on it in a way that
> I could actually measure the torque applied ( used Remflex gaskets)
>
> --
'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
Re: [GMCnet] Blowing off some steam [message #349410 is a reply to message #349409] Fri, 18 October 2019 12:31 Go to previous messageGo to next message
Rich Kinas is currently offline  Rich Kinas   United States
Messages: 113
Registered: July 2019
Karma: 1
Senior Member
I agree! well worth the time and effort to pull the wheels and wheel well
liners.

On Fri, Oct 18, 2019 at 1:16 PM Richard Denney via Gmclist <
gmclist@list.gmcnet.org> wrote:

> If you pull the inner fenders and front wheels, it’s MUCH easier to get
> tools on the manifold bolts.
>
> Rick “key word: easier” Denney
>
> On Fri, Oct 18, 2019 at 12:18 PM Bruce Hislop via Gmclist gmclist@list.gmcnet.org>:
>
>> ...
>> Biggest issue I had was getting my 3/8" torque wrench on it in a way that
>> I could actually measure the torque applied ( used Remflex gaskets)
>>
>> --
> '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
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


Rich Kinas 1976 Elaganza II Orlando, FL
Re: [GMCnet] Blowing off some steam [message #349412 is a reply to message #349409] Fri, 18 October 2019 12:56 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
Richard Denney wrote on Fri, 18 October 2019 12:15
If you pull the inner fenders and front wheels, it's MUCH easier to get
tools on the manifold bolts.

Rick "key word: easier" Denney
'73 X-Glacier 230 "Jaws"
Northern Virginia

Yeah finder liner is out. Where we are parked on grass is not the best for jacking. I do have blocking if absolutely needed. So far I've been doing OK with running back and forth inside to outside as necessary. I can jack if absolutely necessary but it may take longer to do that jacking vs struggling with it the way it is. So far the PS bracket has not been a serious problem. (Hope it stays that way.)

One way or another we are out of here tomorrow. Under our own power or on the hook. (See dead coach thread for details.


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: Blowing off some steam [message #349421 is a reply to message #349407] Fri, 18 October 2019 18:43 Go to previous messageGo to next message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
Karma: -6
Senior Member
Throw a piece of board under the crossmember, grab a jack and just jack it up to the point the wheel is just touching the ground....makes for way more room and you can leave the wheel on then....

Rich Mondor, Brockville, ON 77 Hughes 2600
Re: [GMCnet] Blowing off some steam [message #349423 is a reply to message #349421] Fri, 18 October 2019 18:55 Go to previous messageGo to next message
James Hupy is currently offline  James Hupy   United States
Messages: 6806
Registered: May 2010
Karma: -62
Senior Member
Sorry, but NEVER, NEVER, NEVER crawl under a coach that is only supported
by a hydraulic Jack. Always use Jack stands, or solid wood cribbing. NO
EXCEPTIONS, EVER. Your life depends upon it.
Jim Hupy, who has had a poorly supported coach fall with me under it.
Salem, Oregon

On Fri, Oct 18, 2019, 4:44 PM tonka6cuda6--- via Gmclist <
gmclist@list.gmcnet.org> wrote:

> Throw a piece of board under the crossmember, grab a jack and just jack it
> up to the point the wheel is just touching the ground....makes for way more
> room and you can leave the wheel on then....
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Re: [GMCnet] Blowing off some steam [message #349424 is a reply to message #349423] Fri, 18 October 2019 20:23 Go to previous messageGo to next message
Bullitthead is currently offline  Bullitthead   United States
Messages: 1411
Registered: November 2013
Karma: 5
Senior Member
Smart guys put a jack stand or blocks under the frame when working in over the tire...or hope the spring doesn't break during that time.

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
Re: Blowing off some steam [message #349428 is a reply to message #349421] Sat, 19 October 2019 01:56 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
6cuda6 wrote on Fri, 18 October 2019 18:43
Throw a piece of board under the crossmember, grab a jack and just jack it up to the point the wheel is just touching the ground....makes for way more room and you can leave the wheel on then....

As stated:: block it up and make sure it is stable before going under the coach.

Easy and cheap to do

http://www.gmcmhphotos.com/photos/g5461-12-ton-jack-stands.html


Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: [GMCnet] Blowing off some steam [message #349431 is a reply to message #349409] Sat, 19 October 2019 08:07 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
While you've got the wheel well liners out, you might consider a mod
similar to this:
http://www.gmcmhphotos.com/photos/g3609-2-piece-wheel-well-liner.html

Fact is, I've just about quit re-installing the inner halves of the liners
so access is ALWAYS easier. If I'd known I was going to do that, I might
have cut them 2/3 stay-in and 1/3 removed-for-good, but I'm still happy
with only those partial liners.

Ken H.

On Fri, Oct 18, 2019 at 1:16 PM Richard Denney via Gmclist <
gmclist@list.gmcnet.org> wrote:

> If you pull the inner fenders and front wheels, it’s MUCH easier to get
> tools on the manifold bolts.
>
> Rick “key word: easier” Denney
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Blowing off some steam [message #349434 is a reply to message #349431] Sat, 19 October 2019 13:37 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
I like my mod better. Take them off and leave them and leave them off. No cooling problems, no vapor lock problems and everything is easy access.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] Blowing off some steam [message #349437 is a reply to message #349434] Sat, 19 October 2019 17:42 Go to previous messageGo to next message
midlf is currently offline  midlf   United States
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
Senior Member
Ken Burton has offered to help. This is my latest note to him. Explains what is going on here. Or more precisely what is not happening here.

Fuel system mods, Got the new dist in, new plugs, replacement carb, exhaust manifold gasket in, new exhaust donut. Started right up. Started so quick the starter could just barely be heard. Ran it around the campground to get to the dump station. All good, so far. This was all completed about 1500. Hooked up the toad and went out for a test run. Figured if it passed we would keep going. Heading for you.

Crap - runs like crap. Back to Tall Sycamore campgrounds. Where before, with the sick coil it backfired through the carb, now at least the backfire is going out the back. I'm going to read up on possible causes for after fire. The only thing I can think of is I did not get the timing right. CFO is saying enough is enough and lets get it towed back to Wi$con$in. Not that bad as we have good tow coverage though AAA & stateFarm. However still a bummer.

Thanks for the heads up on your location. If anything changes I'll let you know by email. I know you don't use email but with my hearing and yours, especially through cell phones, it is about all that works well.

SteveS

On Oct 19, 2019, at 14:30, Ken Burton <n9cv@comcast.net> wrote:

If you hare heading my way to go Valparaiso Airport NOT Hebron.
Ken B


On 10/19/2019 6:53 AM, Steve Southworth wrote:
Thanks for location update. Right now I'm finishing that down pipe to manifold connection. Then timing. If it all works ok we'll be rolling. Depending on our confidence level we will head for home or Hebron.

A funny: one way or another's will be heading towards Hebron. Hebron WI is about 5 miles away from home.

SteveS

On Oct 19, 2019, at 01:16, Ken Burton <n9cv@comcast.net> wrote:

Well I will still here if you need anything.



Ken

On 10/18/2019 5:27 PM, Steve Southworth wrote:
Also posted to GMCnet

KenB - Update. I got the GMC running only to find out I have a completely blown out LH exhaust manifold gasket. I've picked up a new one and will be, hopefully, getting it installed this morning. I'll also email you as my hearing is also not so great.

Thanks to everyone for help so far. When this is all done I'll publish a forensic analysis of this whole topic.

I can receive texts but not send them 262.
then a 501.
followed up by 4566.

SteveS




Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
Re: [GMCnet] Blowing off some steam [message #349446 is a reply to message #349437] Sun, 20 October 2019 00:51 Go to previous message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
Senior Member
I responded to Steve off net.

Ken B


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Previous Topic: [GMCnet] Fuel Problem
Next Topic: Lower control arm caution notice '73 & '74
Goto Forum:
  


Current Time: Mon Sep 16 04:45:12 CDT 2024

Total time taken to generate the page: 0.02995 seconds