Engine Swap = Oil leak

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nosdujshsdl

NAXJA Forum User

Location

Columbia, SC

• Sep 20, 2010

• #1

I just finished swapping out my 4.0 for another that had less thank 60K miles on it. I replaced the valve cover, oil filter adapter, and rear main seals. I also put on a new oil pressure regulator. I have a small oil leak after I shut down the jeep, when its hot. Any ideas where else I should look.

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Sep 20, 2010

• #2

Where does the oil show up on the engine? You replaced the oil pressure regulator?

 

Shorty

NAXJA Forum User

NAXJA Memorial Lifetime Member

Location

on the beach in Ocean View, VA

• Sep 20, 2010

• #3

I'll assume you replaced the oil pressure sending unit (as opposed to regulator-- that's part of the pump). Clean everything off again, and run her for about ten minutes-- then inspect for fresh oil.

If new stuff isn't leaking at all, I'd make sure the distributor has a good gasket on it and the timing cover seal isn't leaking.

 

N

nosdujshsdl

NAXJA Forum User

Location

Columbia, SC

• Sep 20, 2010

• #4

Yeah the sending unit, I plan to wash it up tonight and start checking for leaks. Thanks for the advice.

 

joe_peters

NAXJA Forum User

Location

Grants Pass, OryGun

• Sep 21, 2010

• #5

nosdujshsdl said:

Yeah the sending unit, I plan to wash it up tonight and start checking for leaks. Thanks for the advice.

Click to expand...

Don't get real enthusiastic with water around the TPS on the throttle body. It won't like it.

I use a mix of 50/50 Simple Green and tap water, mix it in a pump up garden sprayer and then coat the engine areas where you want to clean. Wait 15 minutes, then hose off.

 

Talyn

NAXJA Forum User

Location

Radford, Communistwealth of Virginia

• Sep 22, 2010

• #6

Keep water way from the distributor and TPS. Other than that hose it down.