Welcome to the The Garage Journal Board forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   The Garage Journal Board > The Garage > Free Parking

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-11-2012, 08:07 PM   #1
purplezr2
Senior Member
 
purplezr2's Avatar
 
Join Date: Jun 2010
Location: Central MN
Posts: 2,137
Default Question about 3.8 SC Lower Intake Manifold gaskets

So I did a set of these last week, and I noticed all data recommended taking the valve covers off. I didn't see the point and skipped it. Anyone know why they recommend it? Also what is the typical amount of time it takes you guys to do the job?
purplezr2 is offline   Reply With Quote
Old 04-11-2012, 08:10 PM   #2
znowaczyk
Banned
 
Join Date: Apr 2011
Location: Oregon, Ohio...NorthCoast
Posts: 1,490
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Quote:
Originally Posted by purplezr2 View Post
So I did a set of these last week, and I noticed all data recommended taking the valve covers off. I didn't see the point and skipped it. Anyone know why they recommend it? Also what is the typical amount of time it takes you guys to do the job?
A couple hours....give or take...add or subtract for age and deterioration
znowaczyk is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 04-11-2012, 08:16 PM   #3
wafrederick
Senior Member
 
Join Date: Jul 2010
Location: Holton,Mi
Posts: 4,155
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Can do it without taking the valve covers off.For better insurance to prevent an oil leak on this engine,better off replacing the valve cover gaskets at the same time.The supercharged including the non supercharged 3800 valve cover gaskets leak,oil gets on the exhaust manifolds and can catch on fire.GM put a recall on this a few years ago,was the supercharged 3800 engines first.
wafrederick is offline   Reply With Quote
Old 04-11-2012, 08:33 PM   #4
znowaczyk
Banned
 
Join Date: Apr 2011
Location: Oregon, Ohio...NorthCoast
Posts: 1,490
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Quote:
Originally Posted by znowaczyk View Post
A couple hours....give or take...add or subtract for age and deterioration
and, oh yeah...make sure to replace the little plastic elbows on the tensioner!
znowaczyk is offline   Reply With Quote
Old 04-11-2012, 09:38 PM   #5
Jeeper
Senior Member
 
Jeeper's Avatar
 
Join Date: Dec 2006
Location: Round Rock, TX
Posts: 1,180
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

I did the lower intake gasket on my 04 Pontiac Grand Prix Gtp without removing the valve covers.

Jeeper is offline   Reply With Quote
Old 04-11-2012, 09:42 PM   #6
purplezr2
Senior Member
 
purplezr2's Avatar
 
Join Date: Jun 2010
Location: Central MN
Posts: 2,137
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Quote:
Originally Posted by znowaczyk View Post
and, oh yeah...make sure to replace the little plastic elbows on the tensioner!
Ya, knew about those.

It took me about 2.5 hours including gaskets, stat, temp sender, new injector orings and coolant flush. It was a freebie job friend here at college.


Jeeper, why did you take your fuel rail off that way, is it not easier to just pull the injectors our of there bosses.
purplezr2 is offline   Reply With Quote
Old 04-11-2012, 09:50 PM   #7
Jeeper
Senior Member
 
Jeeper's Avatar
 
Join Date: Dec 2006
Location: Round Rock, TX
Posts: 1,180
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Quote:
Originally Posted by purplezr2 View Post
Jeeper, why did you take your fuel rail off that way, is it not easier to just pull the injectors our of there bosses.
There is a story there. I pulled the rail off with the injectors still attached. You are supposed to replace the orings, so when I pulled the o-ring off one of the injectors it broke the plastic holding ring. I had to buy a new injector. At that point i replaced all the o-rings on the top of the injectors since most everything was apart.
Jeeper is offline   Reply With Quote
Old 04-11-2012, 09:50 PM   #8
Murphy4570
Senior Member
 
Murphy4570's Avatar
 
Join Date: Feb 2012
Location: West Deptford NJ
Posts: 1,921
Default Re: Question about 3.8 SC Lower Intake Manifold gaskets

Quote:
Originally Posted by purplezr2 View Post
Jeeper, why did you take your fuel rail off that way, is it not easier to just pull the injectors our of there bosses.

Sometimes the injectors stick into the engine, and pop off at the rail. Oftentimes, the injector o-rings will stay stuck in the fuel rail when that happens.
Murphy4570 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 01:41 PM.