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HarryM1BYT · 19th September 2019, 12:25

I rang Big Russ to see if he had any ideas as to what could leak around that area. He suggested oil filter, or oil cooler, or PCV blocked and pressurising the engine.

For the first time since I serviced it, in readiness to delve deeper, I removed the engine top cover and spotted the large oil filter O ring had bubbled out towards the rear of the top, slightly hidden under front of the engine cover. All seemed dry and felt dry, but I thought best fix it whilst I remember.

I removed the lid, reseated the O ring, started the engine and no more leakage - I'm just stumped as to how that much oil could be leaking out, without it being obvious it was from the oil filter cover?

More checks to make, to be sure it is fixed, but looks promising.

19th September 2019, 12:25	#15
HarryM1BYT This is my second home 75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010 Location: Leeds Posts: 17,273 Thanks: 2,160 Thanked 2,061 Times in 1,586 Posts	Got It !!!! Maybe? I rang Big Russ to see if he had any ideas as to what could leak around that area. He suggested oil filter, or oil cooler, or PCV blocked and pressurising the engine. For the first time since I serviced it, in readiness to delve deeper, I removed the engine top cover and spotted the large oil filter O ring had bubbled out towards the rear of the top, slightly hidden under front of the engine cover. All seemed dry and felt dry, but I thought best fix it whilst I remember. I removed the lid, reseated the O ring, started the engine and no more leakage - I'm just stumped as to how that much oil could be leaking out, without it being obvious it was from the oil filter cover? More checks to make, to be sure it is fixed, but looks promising. __________________ Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money.