Oil leak 3.4

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[GTPPRIX JOHN]

I,m looking for pictures or the link to the pictures on how to modify the cylinder head on the 3.4 to replace the o-ring to stop the oil leak.

[SofaKingWeToddDid]

best i have is a picture of the lower intake removed, best bet is to do a search for oil pump drive seal.
Post Merge: March 21, 2011, 05:12:06 PMhey hey hey i found it! fix the PVC line too if you already havent...

Post Merge: March 21, 2011, 05:12:25 PMlol pcv... hahaha pvc? kinky

[94 olds vert]

Here this might help you.
 http://www.w-body.com/showthread.php/37752-how-to-replace-a-lower-intake-gasket-on-a-3.4-dohc

[SofaKingWeToddDid]

it wont help because he needs to know how to grind the head, and the part you pull out, enough to clear for the rubber o ring to come out.

[94 olds vert]

3.4 specific instructions:

There is a specific O-ring for this job. Go to your dealer and get the BROWN silicone O-ring.(oil/distributor drive O-Ring, brown silicone rubber - 10477565) they will know what you need. ask for a "OIL DRIVE O-RING" there or any reputable parts shop.

next.. GET A PAPER GASKET. One for a 1980 anything chevy v6 will work, but you can make your own. WHY? You should DOUBLE GASKET this seal. I do on all the 60V6s I've ever touched.

You cannot reach the O-ring on the drive gear due to clearance on this motor (91-95 for sure) You must make the clearance.

CLEARANCING HEAD: I do not like hacking the head completely, so instead I removing maybe 1/4 inch of material with a hacksaw blade from the area right above the seal. This leaves the bolt from the lower intake functional, but thins the tab of metal hanging below it. You will need to remove a little of the very lowest portion of the bolt's hole.

CLEARANCING OIL GEAR:Next, I recess the "freeze-plug" type cover in the center of the drive-gear by tapping it down from above with a couple linked 3/8" extensions, turning it (or moving the extension) so the plug moves uniformly. Using the hacksaw blade again, I notch into the top of the drive-gear level with the top of the recessed cap. Cut about 1/4 of the radius, and a quick tap with a screwdriver will pop the cut section off. hack the edges clean, and even sand to de-bur so you don't damage the new o-ring.

The gear should lift high enough to have the bottom of the O-ring at or above the level of the block. Cut or break the old ring out. Grease or oil the new ring and the drive-gear cap (I prefer dielectric grease) and slip it over the cap, stretching it over and sliding it down until in position. (note that I used some plastic coated wiring to drag it) Degrease the area and get the paper gasket. Cut the paper gasket and rub it with a RTV sealant. wrap it around the oil drive, make sure it is straight and slam that oil-drive gear home and bolt it down.

http://s28.photobucket.com/albums/c214/Crazy_Ken/LQ1%20oil%20drive%20fix/[/url

[SofaKingWeToddDid]

ya those r the ones i was thinking of.