QUESTION about th350 tanny
Thread Starter
Cruising
Joined: Jan 2003
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From: terrassa
QUESTION about th350 tanny
Dear friends
i have to replace the th350 oil, can anybody tell me how much oil do i have to put in, the poblem i have is that the deepstick i have is not the one it had to be and is not fiable.is 10qts the messure?any help would be apreciated, i also have another small problem i have a 1977 l48 corvette , i boughth the car in north europe, the engine cames with a holley street dominator intake manifold, i think is single plane not sure, the problem is that after an engine rebuild some of the intake manifold screws are leaking oil, is normal oil leak there, how can i solve this leak.my engine is stock with y pipe and standard exhaust manifold could it be a good idea to replace the holley street dominator intake for a stock one i think its not worth to wear it.many thanks
tino
barcelona spain
i have to replace the th350 oil, can anybody tell me how much oil do i have to put in, the poblem i have is that the deepstick i have is not the one it had to be and is not fiable.is 10qts the messure?any help would be apreciated, i also have another small problem i have a 1977 l48 corvette , i boughth the car in north europe, the engine cames with a holley street dominator intake manifold, i think is single plane not sure, the problem is that after an engine rebuild some of the intake manifold screws are leaking oil, is normal oil leak there, how can i solve this leak.my engine is stock with y pipe and standard exhaust manifold could it be a good idea to replace the holley street dominator intake for a stock one i think its not worth to wear it.many thanks
tino
barcelona spain
Le Mans Master
Joined: Aug 2000
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From: Brazos TX
Cruise-In IV Veteran
Cruise-In V Veteran
Check out this link. http://www.tciauto.com/tech_info/fluid_capacity.htm
Keep in mind that there will still be fluid in the converter so you still need a dipstick to properly determine fluid level.
As for the intake manifold bolts, remove the bolts and use so thread sealer. That should take care of the leaks.
Keep in mind that there will still be fluid in the converter so you still need a dipstick to properly determine fluid level.
As for the intake manifold bolts, remove the bolts and use so thread sealer. That should take care of the leaks.
Tech Contributor
Joined: Aug 1999
Posts: 14,376
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From: At my Bar drinking and wrenching in Lafayette Colorado
The TH350 will take about 4 quarts of fluid if you're just removing the pan and replacing the filter.
No - it's not normal for the intake bolts to leak oil, and you shouldn't have to use thread sealer on the intake manifold bolts. You may have an incorrectly seated manifold or a warped manifold if oil is getting up through the manifold bolts. Verify correct bolt torque first. If the bolts are tight, you might want to remove the manifold and check it for good seating against the heads (no "rocking"). Also, make sure that the front and rear rubber manifold seals have NOT been installed - these can keep the manifold from seating correctly. Always use a bead of silicone sealant instead of the hard rubber seals to assure that the manifold fully seats.
No - it's not normal for the intake bolts to leak oil, and you shouldn't have to use thread sealer on the intake manifold bolts. You may have an incorrectly seated manifold or a warped manifold if oil is getting up through the manifold bolts. Verify correct bolt torque first. If the bolts are tight, you might want to remove the manifold and check it for good seating against the heads (no "rocking"). Also, make sure that the front and rear rubber manifold seals have NOT been installed - these can keep the manifold from seating correctly. Always use a bead of silicone sealant instead of the hard rubber seals to assure that the manifold fully seats.
Pro
Joined: Mar 2002
Posts: 511
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From: St. Louis MO
Not to doubt lars, but the center four bolts on the intake are tapped straight through into the lifter valley on most small block heads, and if you don't use some sort of thread sealer on these four bolts you will get some oil seepage onto the intake manifold. Check all the other stuff lars referred to however. Rubber end gaskets can cause all sorts of problems.
Tech Contributor
Joined: Aug 1999
Posts: 14,376
Likes: 6,375
From: At my Bar drinking and wrenching in Lafayette Colorado
442 -
You're right - those bolts do go through to the galley area and could potentially seep oil if the heads of the bolts do not seat and seal flush against the manifold flange. I believe that the Holley manifold is in an as-cast condition around the bolts holes (no counterbores to smooth up the bolt seating area), so those center bolts could certainly weep oil. Thanks for pointing that out - good point.
You're right - those bolts do go through to the galley area and could potentially seep oil if the heads of the bolts do not seat and seal flush against the manifold flange. I believe that the Holley manifold is in an as-cast condition around the bolts holes (no counterbores to smooth up the bolt seating area), so those center bolts could certainly weep oil. Thanks for pointing that out - good point.
