Leak behind harmonic balancer

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Nov 24, 2014 | 08:23 PM

copen93

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Leak behind harmonic balancer

So we got a timing cover from the junk yard, cleaned it up real good, put a new seal, new gasket, new harmonic balancer, and now after a few days I run the engine around for like 1 hour going to places and I have a few drops coming from behind the harmonic balancer? Any ideas?

Nov 24, 2014 | 08:32 PM

JWC 3

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What engine do you have ? Is the seal leaking ? or the pan gasket ....

Nov 24, 2014 | 08:34 PM

copen93

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Quote:

Originally Posted by JWC 3

What engine do you have ? Is the seal leaking ? or the pan gasket ....

300 i6 4.9 1993 F150, I was looking at it and was wondering if it might be from the pan gasket, but the harmonic balancer is covered in oil from the top to bottom, so if it was the pan, would it cover the balancer?

Nov 24, 2014 | 08:37 PM

rugermack

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Does your balance have a "groove" in it where the seal rides on it ?

Nov 24, 2014 | 08:43 PM

JWC 3

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Did you lube the seal before installing the balancer ? The crank bolt may require thread sealer to prevent leaks ... Not sure on that .

Nov 24, 2014 | 08:45 PM

JWC 3

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From: Tennessee

Also check your PCV system for proper operation , that WILL cause leaks to form if not proper .

Nov 24, 2014 | 08:52 PM

copen93

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Quote:

Originally Posted by JWC 3

Did you lube the seal before installing the balancer ? The crank bolt may require thread sealer to prevent leaks ... Not sure on that .

I'm sure they did, my neighbors did it, they are both certified mechanics. I really don't want them to take this bugger apart again.

Last edited by Encho; Nov 25, 2014 at 02:39 PM. Reason: language...

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Nov 24, 2014 | 09:27 PM

JWC 3

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Time for a second opinion . Take it to a shop or service station . Have them put it on a rack and watch it while it is running . They may need to put dye in the oil . The leak should show . The front of that pan gasket does not look proper from what I see .

Nov 25, 2014 | 02:03 AM

#10

tbugher62

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Probably didn't get the portion of the pan gasket set right when they put the timing chain cover back on.

Nov 25, 2014 | 12:53 PM

#11

krewat

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From: Long Island USA

Quote:

Originally Posted by JWC 3

The front of that pan gasket does not look proper from what I see .

Ditto on that.

Nov 25, 2014 | 03:53 PM

#12

copen93

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Quote:

Originally Posted by tbugher62

Probably didn't get the portion of the pan gasket set right when they put the timing chain cover back on.

Where should I go from here? Just keep an eye on the oil level? I really don't have the money to pull the engine out of it to get to the gasket.

Nov 25, 2014 | 09:08 PM

#13

tbugher62

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You dont have to pull the engine out too replace the gasket,get a timing cover gasket set,it has all the gasket's you need to fix the leak for about $20.00,you will have to pull the water pump,timing cover,e.t.c.