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Gozy

Member Since: 02 Apr 2016
Location: Sidbury
Posts: 43

Head gasket oil smear.

May have a problem ! Has anyone had an oil leak from the head gasket. Was checking the fuel regulator because had renewed it recently but noticed oil smear at the head gasket level right at the corner. Been checked it for about a week doesn’t seem to be coming from higher up any thoughts please.

25th Feb 2018 7:52am

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2237

2002 Defender 110 Td5 DCPU Keswick Green

Can almost guarantee it is the half moon shaped section on thr rocker cover gasket. Had the same myself. New genuine (Reinz) gasket and two small dabs of sealant either side of the half moon.

Steve 02' 110 TD5 Double Cab Rebuild Thread

25th Feb 2018 8:03am

dorsetsmith

Member Since: 30 Oct 2011
Location: South West
Posts: 4554

^^^^

25th Feb 2018 8:23am

Gozy

Member Since: 02 Apr 2016
Location: Sidbury
Posts: 43

Thanks Steve so what you’re saying it’s the rocker gasket not the head gasket?

25th Feb 2018 8:33am

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2237

Yeah, the oil runs down the back of the head to the head/block join and runs down to near the FPR. Have had it myself and was convinced the rocker cover wasnt leaking but it was.

Steve 02' 110 TD5 Double Cab Rebuild Thread

25th Feb 2018 10:54am

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Yup as above, 90% certain it will be that half moon part of the rocker cover seal at the back of the engine.

The other 10% is in fact oil leaking from between the head gasket and block/cylinder. This was, looking back at it, the first sign that my head was warped, very warped. Took a (as the engineer stated) darned good skim to get it flat again. The other symptom to look out for is the over pressurising of the coolant system. in the head picture you can see that i cleaned the head off, took it for a drive and the oil was coming from the gasket... clean off your engine and keep an eye on it...

Click image to enlarge

25th Feb 2018 9:15pm

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