formula18

Like the title says im puling my hair our...i have a twin engine formula with an oil leak i cant find...what are the spots to check.? Its a twin engine formula and the motors are tough to work on...it doesnt lose any oil after it sits forma week, then i drive it for a hard half hour and there is oil in the bilgr...its not alot but enough to be concerned... Anyone have a list of spots to kcheck that are common...engine is a 1989. 7.4 330. Motors are squeezed into a 272

502ss

iTrader: (3)

Do you even have a vicinity where it's coming from, front, back, port, starboard side of engine?

formula18

Unfortunalty no...the motors are so squeezed together that without removing exhaust i cant see...not from intale manofld i know that...and doent seem lime from remote oil filter

markt111

Just found one in mine a couple weeks ago I've been chasing, it was one of the high reassure hose to the oil cooler... Leaking out of the crimped connection

VoodooRob

Engine oil or drive oil? Thought I had an engine oil leak on an old boat, turned out there was a leak in the bottom of drive oil reservoir. Only leaked after a long run.

3pointstar

That is the first place I would look -- did you notice a color of the oil - is it possible that its the drive oil?

3pointstar

vintage chromoly

iTrader: (3)

Maybe a dry or cracked oil breather grommet.

1BIGJIM

iTrader: (1)

Put some oil dye in the engine and drive it. It comes in 1 Oz. bottles. After a hard run you should be able to see where it's coming from. It's about the only way to find the exact source of the leak.

formula18

Its def engine oil. After a hard hour run its down an 1/8th on the dipstick....i will remove port exhaust and check cooler. Imwill look for dye as well guys...thanks for the help. Its suck a simple thing , u would think it would be easy...been wrenching my whole life. I just cant get down there..

formula18

I found the leak but have no idea why or how its leaking there...down between the valve cover and the exhaust manifiold...it appears to be coming from a head bolt...right side 2nd from front. Any ideas?