rear oil pan leak - Team Camaro Tech
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post #1 of 8 (permalink) Old Dec 24th, 05, 12:44 PM Thread Starter
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Jeff
 
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Unhappy rear oil pan leak

my small block has been plagued by the small quarter-sized oil drips for a few years now - I have the tranny out right now and determined it's the rear of the oil pan that's leaking. Do you think i can loosen all the side and rear bolts enough to drop just the rear of the pan - try to reseal it and bolt it all back up without creating more leakes elsewhere? It's a ZZ4 crate with the one-piece pan gasket, so i'm thinking it may seal back up just fine....... thoughts? I really don't want to pull the motor - so i may just choose to ignore it and keep parking over cardboard.......

Jeff Supinski
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post #2 of 8 (permalink) Old Dec 24th, 05, 01:18 PM
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Robert
 
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Re: rear oil pan leak

I've recently been dealing with similar problems. I replaced my oil pan and used a one piece gasket. After having it on there for a couple of days I realized I had screwed up where the dipstick tube goes through the gasket. So I did just what you're asking and dropped the pan back down using some longer bolts to kind of hold everything in place while I fixed my problem. Now keep in mind that mine had only been on there a couple of days and had only been through a few heat cycles. Also there was no sealant used so I didn't have to deal with that. If you're not prepared for the fact that it may not work then the cardboard might be the better option.

Robert

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post #3 of 8 (permalink) Old Dec 24th, 05, 01:19 PM
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Re: rear oil pan leak

If you're this far apart, drop the pan and replace the pan gasket.

Might be a good time to replace the rear main seal, its right there, unless you're sure the shaft seal is not leaking.

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post #4 of 8 (permalink) Old Dec 24th, 05, 01:28 PM
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Re: rear oil pan leak

That makes more sense, replace it instead of messing with it. I think the pan would have to come on out though. Don't see how you could get the gasket around the pickup with only a couple of inches to work with. Raising the engine enough to drop the pan on out isn't that hard just a little time consuming.

Robert

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post #5 of 8 (permalink) Old Dec 25th, 05, 01:37 PM
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Re: rear oil pan leak

Well, if you've got the tranny out you're halfway to pulling the engine. I use a standard cherry picker and I can have an engine out and completely dis-assembled in about 2 hours. If you've got the tranny out, you are about an hour (or less) away from having the engine out and sitting on an engine stand.

Then you can do easily a quality, leakproof job on the rear main seal and pan gasket and toss the engine right back in.

IMO, nothing worse than trying to do oil pan work with engine in car.

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post #6 of 8 (permalink) Old Dec 27th, 05, 09:22 PM Thread Starter
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Re: rear oil pan leak

As a wrap up, I ended up hooking my hoist up to the engine and lifting it about 3 inches - as far as i could without even removing the hood! Didn't have to disconnect anything but the mount bolts. Plenty of room to drop and remove the pan, and put it all back together. No more leaks!!

Jeff Supinski
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post #7 of 8 (permalink) Old Dec 28th, 05, 06:38 AM
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Re: rear oil pan leak

Quote:
Originally Posted by camaro-69ss
As a wrap up, No more leaks!!
Cool!

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post #8 of 8 (permalink) Old Dec 28th, 05, 10:39 AM
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Re: rear oil pan leak

Nah, you don't need to pull the engine,..especially since you're not scraping gasket material.

You can lift the engine about 3-4 inches and get to everything you need. You don't even have to drain the radiator or remove hoses.

It's easier if you point your rotor to number 6 on the distributor cap (I think it's number six,..help me out boys). This moves the big crank weight up front to the top of it's rotation and out of the way which makes pan removal much easier.

I've done this on stroked BB's which is a bit more difficult, but it's a one-day-driveway job.

Good luck,..and don't forget to disconnect those ground straps like I usually forget to do.

Last edited by Straight-line-69; Dec 28th, 05 at 09:15 PM.
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