| [GMCnet] Ta Da - Mechanicals DONE! [message #95278] |
Tue, 10 August 2010 21:55  |
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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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G'day,
I took Double Trouble down to Ben's shop to fit a new tailpipe. It's the
first time I had driven it since we:
* replaced the timing chain
* replaced the oil pan gasket (was leaking)
* installed the oil pan with twin drain plugs
* replaced the transmission pan gasket (was leaking)
* installed the trans oil pan with temp sensor and drain
* replaced the speedo bullet o-rings
* installed a 3.21 to 1 final drive
* installed one of Jim B's sensitized brake boosters
I AM BLOWN AWAY by the improvement in brake performance! Double Trouble has
Caddy calipers on the front and middle axles and drums on the rear (Ken Frey
fitted drum brakes to the rear when I first bought it to pass NJ state
inspection). Last time I was here we installed a new master cylinder,
stainless steel brake lines, rebuilt Caddy calipers on the front and middle
axles, and braided SS flex hoses. The brakes were OK but took a lot of force
to stop. I felt that Helen would not be able to drive it safely. I now only
have to TOUCH the brake pedal to start braking.
Jim told me to run it up to about 5 mph and slam on the brakes. I did so and
everything that wasn't nailed down took off towards the front of the coach!
The bottom of the old booster had a 8/93 engraved into it so it had been
replaced.
Bottom line: if you know all the components in your brake system are good
but you're still not happy with the force it takes to stop your GMC this
booster IS the way to go!
The performance is WAY better also! I suspect the stretch in the timing
chain retarded the cam timing and effected low rpm performance. I can't
believe how much better it accelerates! I realize the 3.21 to 1 final drive
contributed to this also but the engine does seem to be "peppier" and
quieter.
When I got back from Ben's I checked and couldn't see even a hit of an oil
leak. Hopefully that will remain the same once I am out on the highway!
Now if I can finish up the interior before Helen decides to give up and fly
back to Sydney I'll be really happy man!
Regards,
Rob M.
USAussie
'75 Avion - Double Trouble
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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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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95291 is a reply to message #95278] |
Tue, 10 August 2010 22:30  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Woo hoo - excellent news!
Sent from my iPad
On Aug 10, 2010, at 7:55 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> G'day,
>
> I took Double Trouble down to Ben's shop to fit a new tailpipe. It's the
> first time I had driven it since we:
>
> * replaced the timing chain
> * replaced the oil pan gasket (was leaking)
> * installed the oil pan with twin drain plugs
> * replaced the transmission pan gasket (was leaking)
> * installed the trans oil pan with temp sensor and drain
> * replaced the speedo bullet o-rings
> * installed a 3.21 to 1 final drive
>
> * installed one of Jim B's sensitized brake boosters
>
> I AM BLOWN AWAY by the improvement in brake performance! Double Trouble has
> Caddy calipers on the front and middle axles and drums on the rear (Ken Frey
> fitted drum brakes to the rear when I first bought it to pass NJ state
> inspection). Last time I was here we installed a new master cylinder,
> stainless steel brake lines, rebuilt Caddy calipers on the front and middle
> axles, and braided SS flex hoses. The brakes were OK but took a lot of force
> to stop. I felt that Helen would not be able to drive it safely. I now only
> have to TOUCH the brake pedal to start braking.
>
> Jim told me to run it up to about 5 mph and slam on the brakes. I did so and
> everything that wasn't nailed down took off towards the front of the coach!
>
> The bottom of the old booster had a 8/93 engraved into it so it had been
> replaced.
>
> Bottom line: if you know all the components in your brake system are good
> but you're still not happy with the force it takes to stop your GMC this
> booster IS the way to go!
>
> The performance is WAY better also! I suspect the stretch in the timing
> chain retarded the cam timing and effected low rpm performance. I can't
> believe how much better it accelerates! I realize the 3.21 to 1 final drive
> contributed to this also but the engine does seem to be "peppier" and
> quieter.
>
> When I got back from Ben's I checked and couldn't see even a hit of an oil
> leak. Hopefully that will remain the same once I am out on the highway!
>
> Now if I can finish up the interior before Helen decides to give up and fly
> back to Sydney I'll be really happy man!
>
> Regards,
> Rob M.
> USAussie
> '75 Avion - Double Trouble
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95292 is a reply to message #95278] |
Tue, 10 August 2010 23:13 |
Larry C
Messages: 1168
Registered: July 2004
Location: NE Illinois by the Illino...
Karma: 0
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Senior Member |
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Listen to that thundering Applause!!!!!
Good for you...
LarC ( Getting there. )
Gatsbys' CRUISER  08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
_
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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95333 is a reply to message #95278] |
Wed, 11 August 2010 12:54 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Rob sez "Ta Da - Mechanicals DONE!"
Steve sez - No, you got the mechanicals on your CURRENT LIST done. Knowing you there will be more mechanicals you will do. Some at your discretion, some at your coaches insistence.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95382 is a reply to message #95371] |
Wed, 11 August 2010 18:50 |
Don A
Messages: 895
Registered: October 2008
Location: Dallas, TX
Karma: 0
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Senior Member |
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Congrats Rob
Sure have missed you comments while buried in all that work.
Hope you will give us many trip reports as you travel.
Don Adams Dallas, TX
'76 26' Glenbrook, '90 Sidekick
rebuilt by R Archer, powered by J Bounds, Koba
[IMG]http://www.gmcmhphotos.com/photos/data/6109/G2.jpg[/IMG]
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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95424 is a reply to message #95278] |
Wed, 11 August 2010 21:56 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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Now if I can finish up the interior before Helen decides to give up and fly
back to Sydney I'll be really happy man!
Regards,
Rob M.
USAussie
'75 Avion - Double Trouble
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[/quote]
Rob: Sorry I didn`t get that seat height measurement for you today, I wasn`t home. I`ll really try to get it tomorrow and call.
C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Ta Da - Mechanicals DONE! [message #95453 is a reply to message #95417] |
Thu, 12 August 2010 06:53 |
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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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John,
I bought a second oil pan off eBay and had a second drain heli-arc welded
in.
There are pictures of where to locate it on the photo site.
Normally I'd find them for you but I'm under pressure to get out to the COOP
this morning, sorry.
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of John R. Lebetski
Sent: Wednesday, August 11, 2010 10:25 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Ta Da - Mechanicals DONE!
Where did you get the double drain oil pan? for Double Trouble. Now you can
do a real oil change.
--
John Lebetski
Chicago, IL
77 Eleganza II
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_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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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