Little oil seepage

[Lkerley]

Noticed a very small amount of oil seeping in the fin area where one of the pockets is cut for a head bolt really just an oily film on the fins.is this normal.

 

[banditracer13x]

oil seal behind the flywheel may be leaking a little bit and the flywheel blowing it up onto the fins...

 

[CarlsonMotorsports]

It could be cut too deep and leaking once there is crankcase pressure (ie running.)
It could also be a stress crack from welding the lifter bore area - see this many times and is easily fixed with some quality epoxy.
Could be a fly-side oil seal. Usually this is whipped around everywhere though.



-----
Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
Carlson Motorsports on Facebook
30 years of service to the karting industry
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com

 

[One Fast Kat]

That could be a sign of a leaking head gasket!

 

[Lkerley]

Brian it was from the left middle bolt.not were i told you before.thks for all the help

 

[CarlsonMotorsports]

It'll be a head gasket then - no doubt in my mind.

 

[One Fast Kat]

Yep!

 

[Lkerley]

Brian i took the bolt out and ran the high temp rtv on it like you said and doesnt leak now and i ran alot today alot of high rpm reving to.no signs of leaking at the mating surface either?? Whatcha think..preciate the help thks a bunch

 

[CarlsonMotorsports]

It could be cracked at the threads (seen this before too.)
Look very closely between then sleeve and the threads and see if there isn't a crack or stress fracture (vertically.)

Just for extra insurance, I'd throw a stock graphite (soft) Briggs gasket on it as well -- they conform to some deck irregularities better than the stiffer (Cometic mls, FelPro, metal-clad, etc) gaskets do.

If you've got a good flat & smooth RA finish on both the block and head, then I prefer the Cometic or Fel-Pro gaskets.

Glad it's runnin' good for you either way.