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once you get the upper off it should not take but another 10 min to get to the lower off , id recommend doing the lower also
BMAN1104 1 month ago
@BMAN1104 Got the old one off. Looks like this may have been done before. No coolant under it but a fair amount of oil. Also, there is a nick or scratch in the gasket right where I saw the coolant/oil that caused me to start this in the first place.
MoreThanAnOx 1 month ago in playlist Buick
@BMAN1104 I went ahead took off the lower, too, and the gasket did look like it was beginning to crack up a little. I used the Fel-pro "problem solver" kit. Getting those 90 degree tubes in was kind of tricky. Probably should have greased the o-rings, but no leaks. The upper plenum must have been done before because it was in good shape and had the EGR tube installed. The torque specs that I found said 136 inch lb for the lower and 89 inch lb for the upper. Is that right?
MoreThanAnOx 1 month ago in playlist Buick
My intake is showing just a little coolant and oil on top of the lower manifold in the back behind the upper manifold so I'm planning to take it off and change it if it's bad or just get the problem solver kit if it's not. If I see no major problems, do I still have to change the lower manifold gaskets?
MoreThanAnOx 1 month ago in playlist Buick
The the EGR issue is a well know problem with all Series II, 3800 (3.8). I just finished tearing mine appart to correct this problem.
1999Shortstuff 2 months ago
Sleeves are with the replacement manifolds only. Which should be replaced anytime you do an intake anyways, since they have a really high rate of failure. And just remember, anytime you do the intake gasket on a 3.1/3.4/3.8 get the problem solver kit from Fel-Pro, that way the replacement gaskets are metal instead of plastic. That way you won't have an issue with the intake leaking for a long time.
homefry818 2 months ago
to the best of my knowledge gm doesnt have a part number for the sleeves , they only come with the doorman upper intake plenum, kit.
BMAN1104 5 months ago
What is the part number for those intake sleeves?
turbobuick33 5 months ago in playlist More videos from BMAN1104