15 replies to this topic

[Purple Tom]

Hey!

Had my engine out last week, and replaced the oil pump, head gasket, valve stem oil seals, diff pot gaskets, diff output shaft oil seals, and all the other gaskets that you take off when you strip an engine :grin:

Anyway, painted the engine, put me S discs on the car, dropped the engine back in and fitted me new rad too. It runs really well now, but i've got quite a serious oil leak coming from somewhere, but i can't work out where!!

Its not the oil filter, dipstick, transfer gear cover, diff output seals or diff cover seals, or gear selector shaft seals, as its gathering under the alternator where the fan blows it back. This leaves me too think it must be the crankshaft oil seal on the timing cover, but I can't see how as i didn't disturb that end of the engine. Could moving the engine about when its hanging from a block and tackle, using the crankshaft pulley as somewhere to push damage the seal? Or could using a scraper to move dirt from the timing cover possibly have damaged the gasket from timing cover to block? Like i said, its quite a serious leak, so i need to get it sort a.s.a.p really.

Any thoughts??

Cheers, tom

by the way, here's some photos of the work!!

[Purple Tom]

not the best weather to get an engine out!!

[Purple Tom]

dirty engine!

[Purple Tom]

poorly oil pump! (sorry about angle)

[Purple Tom]

first coat

[Purple Tom]

nearly ready to go back in!!

[Purple Tom]

other side

[Purple Tom]

tyres for our other toy, a 1960 Alvis Salamander crash tender, tyres are 14.00x20, stand taller than a mini!!

[Purple Tom]

pretty new disc brakes ready to go on

[Purple Tom]

this is our other toy

[Purple Tom]

it likes water!

[Purple Tom]

eats Range Rovers for breakfast!!

[Bluemini]

The crank pully seal is the most likely place it will leak from, but its odd that it ony jus started doin it, specialy if you havent touched it.

Only other thing I can think of is the oil pump. Dont know if it would do this or not, but if you fitted a high capacity or turbo pump, maybe its causing too much preasure and leaking past a seal some how.

Also, check that the 2 nuts are tight that hold the oil filter head to the block and that the two ends of the oil transfer pipe are tight.

[Purple Tom]

filter housing is tight to block, transfer pipe tight too. Didn't think that the pressure might be too high, it was suffering from low pressure before i put the new pump in, so praps now the pressure is good, a seal that just about held before is now leaking? Its a fairly easy job to do in a day isn't it? Just rad and fan off, timing cover off and new seal and gasket put on? I'll do it monday i reckon!

Cheers Bluemini(Red)!!

[siggy]

Check that its not leaking from the head and running down.

Oil pressure will not cause a leak from the crank seal, the timing chain is only lubricated by splash. You may have knocked some dirt onto the inside of the crank pulley and that has damaged the seal.

Also check the engine breathers, have you change/modifed them? if the breathers are blocked exssive crankcase pressure will cause leaks.

Increased oil pressure would only cause leaks on the filter housing and pipe or the block seal and as you did not seperate the gearbox thats unlikely to happen

Siggy