Briggs V Twin 22HP oil leak under both cylinder heads

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sdnomad

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
Need help figuring out where my oil leak is coming from. Its coming from above the sump gasket so I don't believe its that. Its running down the fins of both heads and drips off the bottom of the heads near the exhaust ports. It's not the valve cover gaskets because I made sure they were sealed. The only thing I can think it might be is head gaskets. I looked over the sump gasket seam and it looks good and dry. Should I just start tearing off the heads? What else could it be?
 

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slomo

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
Anything oil on the top side of the valve cover?

All the cooling fins on the block clean?
 

MParr

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
Do I see a loose connection at the exhaust and head?
 

sdnomad

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
Do I see a loose connection at the exhaust and head?
It looks that way in the pic but it was tight and there was no exhaust leak that I noticed.
 

sdnomad

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
How do you tell if the heads are cracked? I pulled the heads and it looks like it's coming from the middle of the heads. I would think the only place you would have an oil leak in the head would be in the rocker valve area or the oil passages going from the block to the head in the head gasket. You should not get an oil leak from the air or exhaust passages in the head.

These pics were taken looking upward from the bottom of the head.
 

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ILENGINE

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
The chances of both heads being cracked at the same location at the same time are slim and none. I would be looking higher on the engine like between the ignition modules side of the engine.
 

Forest#2

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  • / Briggs V Twin 22HP oil leak under both cylinder heads
Do as startech says.
Use a UV tracer in your motor's oil.

You can get a Automotive store. Review on-line how to use first.
Be sure and get the correct type for motor oil. (not for water, antifreeze, freon, etc)
Do not let the UV dry for long time once detected use the uv remover immediately because it will be permanent dye when going back to confirm no leak later.
I've had to use black matte spray paint over old dried dye to cover up the first dye test to confirm that I had fixed the original leak.
 
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