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| Rockwell Intake Manifold [message #171647] |
Fri, 01 June 2012 11:37  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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After working on it the entire three day weekend, and the last three evenings, after work, I finally finished up the installation of my new Gary Rockwell intake manifold. I have worried over this for several months and continued to worry as I was doing the work. I think my hair is a little grayer by now.
I used Dick Patterson's gaskets with 3-M weather strip/gasket adhesive and Permatex "Right Stuff" in place of the end seals. I had several fitment issues with minor accessories, but since my engine is stock and has never had any machine work done to it, I did not experience any problems with the manifold to head interface. After filing it with coolant, making a few minor adjustments, and tying up a few loose ends, I turned on the ignition, let my electric pump prime the carburetor, gave the throttle a few pumps, and it fired up on the first crank. It ran smoother than ever and held a steady 16" of vacuum at idle (this is at an elevation of 2,600 ft).
I let it run up to operating temperature, and checked for leaks. There were none that I could detect. I hooked up my timing light and checked the timing. It was spot on, besides, I have an MSD dash timing control for adjustment to compensate for altitude and load.
Pics, with captions, are on the photo site:
http://www.gmcmhphotos.com/photos/g6089-gary-rockwell-aluminum-intake-manifold-installation.html
I know I'm not completely out of the woods yet, as I haven't even driven it around the block, much less on a trip. I will be keeping my fingers crossed.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Rockwell Intake Manifold [message #171648 is a reply to message #171647] |
Fri, 01 June 2012 11:41  |
bwevers
Messages: 597
Registered: October 2010
Location: San Jose
Karma: 5
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Senior Member |
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Congrats, glad to hear a success story!
There's something to be said about a stock engine that's never had machine work done to it.
Regards,
Bill
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
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| Re: Rockwell Intake Manifold [message #171652 is a reply to message #171647] |
Fri, 01 June 2012 13:37 |
skip2
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
Karma: 3
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Senior Member |
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When I had to redo my Eldelbrock intake their tech support told me the biggset and best trick on a manifold install is let the sealer on the ends sit for a day or more before even turning over motor and have had no issues at all.
Skip Hartline
74 Canyon Lands, FiTech,
3.7 FD LSD, Manny Tranny,
Springfield Distributor,
2001 Chevy Tracker Ragtop Towd
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| Re: [GMCnet] Rockwell Intake Manifold [message #171724 is a reply to message #171647] |
Sat, 02 June 2012 06:52 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Excellent job Carl. I'm gonna start bringing my stuff to you! (What's
your hourly rate)?
On Fri, Jun 1, 2012 at 9:37 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> After working on it the entire three day weekend, and the last three
> evenings, after work, I finally finished up the installation of my new Gary
> Rockwell intake manifold. I have worried over this for several months and
> continued to worry as I was doing the work. I think my hair is a little
> grayer by now.
>
> I used Dick Patterson's gaskets with 3-M weather strip/gasket adhesive and
> Permatex "Right Stuff" in place of the end seals. I had several fitment
> issues with minor accessories, but since my engine is stock and has never
> had any machine work done to it, I did not experience any problems with the
> manifold to head interface. After filing it with coolant, making a few
> minor adjustments, and tying up a few loose ends, I turned on the ignition,
> let my electric pump prime the carburetor, gave the throttle a few pumps,
> and it fired up on the first crank. It ran smoother than ever and held a
> steady 16" of vacuum at idle (this is at an elevation of 2,600 ft).
>
> I let it run up to operating temperature, and checked for leaks. There
> were none that I could detect. I hooked up my timing light and checked the
> timing. It was spot on, besides, I have an MSD dash timing control for
> adjustment to compensate for altitude and load.
>
> Pics, with captions, are on the photo site:
>
>
> http://www.gmcmhphotos.com/photos/g6089-gary-rockwell-aluminum-intake-manifold-installation.html
>
> I know I'm not completely out of the woods yet, as I haven't even driven
> it around the block, much less on a trip. I will be keeping my fingers
> crossed.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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| Re: [GMCnet] Rockwell Intake Manifold [message #171725 is a reply to message #171647] |
Sat, 02 June 2012 06:53 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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What were your vacuum readings with the OEM setup Carl?
On Fri, Jun 1, 2012 at 9:37 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> After working on it the entire three day weekend, and the last three
> evenings, after work, I finally finished up the installation of my new Gary
> Rockwell intake manifold. I have worried over this for several months and
> continued to worry as I was doing the work. I think my hair is a little
> grayer by now.
>
> I used Dick Patterson's gaskets with 3-M weather strip/gasket adhesive and
> Permatex "Right Stuff" in place of the end seals. I had several fitment
> issues with minor accessories, but since my engine is stock and has never
> had any machine work done to it, I did not experience any problems with the
> manifold to head interface. After filing it with coolant, making a few
> minor adjustments, and tying up a few loose ends, I turned on the ignition,
> let my electric pump prime the carburetor, gave the throttle a few pumps,
> and it fired up on the first crank. It ran smoother than ever and held a
> steady 16" of vacuum at idle (this is at an elevation of 2,600 ft).
>
> I let it run up to operating temperature, and checked for leaks. There
> were none that I could detect. I hooked up my timing light and checked the
> timing. It was spot on, besides, I have an MSD dash timing control for
> adjustment to compensate for altitude and load.
>
> Pics, with captions, are on the photo site:
>
>
> http://www.gmcmhphotos.com/photos/g6089-gary-rockwell-aluminum-intake-manifold-installation.html
>
> I know I'm not completely out of the woods yet, as I haven't even driven
> it around the block, much less on a trip. I will be keeping my fingers
> crossed.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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| Re: [GMCnet] Rockwell Intake Manifold [message #171733 is a reply to message #171725] |
Sat, 02 June 2012 08:14 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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Steve, lets have an "intake" party this winter at Carl's. This will be the third time to try and seal mine. This will be my first time trying Dick Paterson gaskets. I have them here just waiting, after I poured a qt in the engine at end of my 200 mile ride to Effingham. I really appreciate Carl, Chris, George, Rob, and all of the others that have shared information with me, along with Dick Paterson. I bet it does not leak after this install.
Dan,
heading out to the tie dyed bunch early this morning in Effingham
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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| Re: [GMCnet] Rockwell Intake Manifold [message #171738 is a reply to message #171733] |
Sat, 02 June 2012 08:34 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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. This will be the third time to try and seal mine.
OMG, this cannot go on
gene
This will be my first time trying Dick Paterson gaskets. I have them here
just waiting, after I poured a qt in the engine at end of my 200 mile ride
to Effingham. I really appreciate Carl, Chris, George, Rob, and all of the
others that have shared information with me, along with Dick Paterson. I
bet it does not leak after this install.
> Dan,
> heading out to the tie dyed bunch early this morning in Effingham
> --
> Dan & Teri Gregg
>
>
> http://danandteri.blogspot.com/
>
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Rockwell Intake Manifold [message #171747 is a reply to message #171724] |
Sat, 02 June 2012 09:47 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| Steven Ferguson wrote on Sat, 02 June 2012 04:52 |
Excellent job Carl. I'm gonna start bringing my stuff to you! (What's
your hourly rate)?javascript:%20insertTag(document.post_form.msg_body,%20'',%20'');
"What were your vacuum readings with the OEM setup Carl?"
On Fri, Jun 1, 2012 at 9:37 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> After working on it the entire three day weekend, and the last three
> evenings, after work, I finally finished up the installation of my new Gary
> Rockwell intake manifold. I have worried over this for several months and
> continued to worry as I was doing the work. I think my hair is a little
> grayer by now.
>
> I used Dick Patterson's gaskets with 3-M weather strip/gasket adhesive and
> Permatex "Right Stuff" in place of the end seals. I had several fitment
> issues with minor accessories, but since my engine is stock and has never
> had any machine work done to it, I did not experience any problems with the
> manifold to head interface. After filing it with coolant, making a few
> minor adjustments, and tying up a few loose ends, I turned on the ignition,
> let my electric pump prime the carburetor, gave the throttle a few pumps,
> and it fired up on the first crank. It ran smoother than ever and held a
> steady 16" of vacuum at idle (this is at an elevation of 2,600 ft).
>
> I let it run up to operating temperature, and checked for leaks. There
> were none that I could detect. I hooked up my timing light and checked the
> timing. It was spot on, besides, I have an MSD dash timing control for
> adjustment to compensate for altitude and load.
>
> Pics, with captions, are on the photo site:
>
>
> http://www.gmcmhphotos.com/photos/g6089-gary-rockwell-aluminum-intake-manifold-installation.html
>
> I know I'm not completely out of the woods yet, as I haven't even driven
> it around the block, much less on a trip. I will be keeping my fingers
> crossed.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
_______________________________________________
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Steve, My hourly rate will have to be high enough that even YOU couldn't afford me. That's how much I DON'T want to do this again!
The vacuum reading before was about 15". It seems to have gone up one point. Don't know why. Maybe I fixed a leak somewhere else in the system.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Rockwell Intake Manifold [message #171750 is a reply to message #171733] |
Sat, 02 June 2012 09:55 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Senior Member |
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| WD0AFQ wrote on Sat, 02 June 2012 06:14 |
Steve, lets have an "intake" party this winter at Carl's. This will be the third time to try and seal mine. This will be my first time trying Dick Paterson gaskets. I have them here just waiting, after I poured a qt in the engine at end of my 200 mile ride to Effingham. I really appreciate Carl, Chris, George, Rob, and all of the others that have shared information with me, along with Dick Paterson. I bet it does not leak after this install.
Dan,
heading out to the tie dyed bunch early this morning in Effingham
|
Dan,
I vote for having the 'intake party' at Steve's. It's closer to Duncan than Tucson (marginally) and Steve has much more know-how about measuring and machining intake manifolds than any of us. I'll come down and help.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Rockwell Intake Manifold [message #171781 is a reply to message #171647] |
Sat, 02 June 2012 16:16 |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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Senior Member |
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Yeah, If I have to do it a third time, I'l be joining y'all. Mine doesn't seem to leak anymore, but it took a few trips to manifest the problem. This time I let it sit for 36 Hrs before I cranked her up.
It runs pretty good now that all the wires are right! 
I also put RTV on both parts, block and intake, in hopes that it would all meet in the middle.
If this doesn't do it, I don't know what will. What do the hot rodders do? Do we go back to the turkey tray?
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Rockwell Intake Manifold [message #171800 is a reply to message #171733] |
Sat, 02 June 2012 19:31 |
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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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Dan,
Did you calibrate your dipstick after the last engine installation? It seems like a lot of oil to suck through the intake for a flat lander.
Larry Davick
On Jun 2, 2012, at 6:14 AM, Dan Gregg <gregg_dan@hotmail.com> wrote:
>
>
> Steve, lets have an "intake" party this winter at Carl's. This will be the third time to try and seal mine. This will be my first time trying Dick Paterson gaskets. I have them here just waiting, after I poured a qt in the engine at end of my 200 mile ride to Effingham. I really appreciate Carl, Chris, George, Rob, and all of the others that have shared information with me, along with Dick Paterson. I bet it does not leak after this install.
> Dan,
> heading out to the tie dyed bunch early this morning in Effingham
> --
> Dan & Teri Gregg
>
>
> http://danandteri.blogspot.com/
>
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Rockwell Intake Manifold [message #171848 is a reply to message #171750] |
Sun, 03 June 2012 08:06 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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Got power and room for two GMCs. Come on over Dan, Carl can stop in and
supervise. Armand can help supervise too, he's now an expert!
On Sat, Jun 2, 2012 at 7:55 AM, Carl Stouffer <carljr3b@yahoo.com> wrote:
>
>
> WD0AFQ wrote on Sat, 02 June 2012 06:14
> > Steve, lets have an "intake" party this winter at Carl's. This will be
> the third time to try and seal mine. This will be my first time trying Dick
> Paterson gaskets. I have them here just waiting, after I poured a qt in the
> engine at end of my 200 mile ride to Effingham. I really appreciate Carl,
> Chris, George, Rob, and all of the others that have shared information with
> me, along with Dick Paterson. I bet it does not leak after this install.
> > Dan,
> > heading out to the tie dyed bunch early this morning in Effingham
>
>
>
> Dan,
>
> I vote for having the 'intake party' at Steve's. It's closer to Duncan
> than Tucson (marginally) and Steve has much more know-how about measuring
> and machining intake manifolds than any of us. I'll come down and help.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: Rockwell Intake Manifold [message #172801 is a reply to message #171647] |
Sun, 10 June 2012 13:23 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
|
Senior Member |
|
|
A little follow up on the Manifold installation:
I took the coach for a 30 - 35 mile shake down yesterday morning. It ran great and the vacuum readings seemed to be good (hard to tell on a short freeway drive across town, with ups and downs of overpasses/underpasses). The 180 degree t-stat made a big difference in the temp gauge reading, but the fan clutch engaged a lot. I guess it's time to try baffles at the sides of the radiator.
The cruise control would not engage and when I got home, I found out why. I had inadvertently disconnected one of the vacuum lines at the transducer. I was also disappointed to see fresh oil at the back of the engine. Evidently, I didn't get the manifold down evenly and created a void in the RTV on the rear "china wall". I think it will be a relatively easy fix though. I plan to remove the distributor, wash out the area thoroughly with brake cleaner, and inject some more "Right Stuff" into the joint between the manifold and the rear wall. Fortunately, the only leak I could detect is that one, in the rear, where it is most easily accessible.
Hopefully this is the only issue.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Rockwell Intake Manifold [message #172851 is a reply to message #172801] |
Sun, 10 June 2012 20:21 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| Carl S. wrote on Sun, 10 June 2012 13:23 |
A little follow up on the Manifold installation:
I took the coach for a 30 - 35 mile shake down yesterday morning. It ran great and the vacuum readings seemed to be good (hard to tell on a short freeway drive across town, with ups and downs of overpasses/underpasses). The 180 degree t-stat made a big difference in the temp gauge reading, but the fan clutch engaged a lot. I guess it's time to try baffles at the sides of the radiator.
The cruise control would not engage and when I got home, I found out why. I had inadvertently disconnected one of the vacuum lines at the transducer. I was also disappointed to see fresh oil at the back of the engine. Evidently, I didn't get the manifold down evenly and created a void in the RTV on the rear "china wall". I think it will be a relatively easy fix though. I plan to remove the distributor, wash out the area thoroughly with brake cleaner, and inject some more "Right Stuff" into the joint between the manifold and the rear wall. Fortunately, the only leak I could detect is that one, in the rear, where it is most easily accessible.
Hopefully this is the only issue.
|
Carl,
Clean up the back of the manifold and engine. Connect a vacuum cleaner to the oil fill tube and block (tape over) the PCV connections on both valve covers. Turn on the vacuum cleaner and use silicone. Smear it on the area where the leak is. The vacuum will draw in the silicone to the seam while it sets up.
Good luck.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
[Updated on: Sun, 10 June 2012 20:33] Report message to a moderator |
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| Re: Rockwell Intake Manifold [message #172870 is a reply to message #172851] |
Sun, 10 June 2012 21:58 |
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WD0AFQ
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
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Senior Member |
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Ken, what you doing week 24th? Come down for a visit and lets work on my intake.
Thinking a little shaving on mine may very well be in order. This is the same engine that popped after 6,000 miles. No telling how much shaving has been done to it.
Dan
3 In Stainless Exhaust Headers
One Ton All Discs/Reaction Arm
355 FD/Quad Bag/Alum Radiator Manny Tran/New eng.
Holley EFI/10 Tire Air Monitoring System
Solarized Coach/Upgraded Windows
Satelite TV/On Demand Hot Water/3Way Refer
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