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Post by atlex on May 3, 2016 22:51:44 GMT
oh and something I discovered recently. oil can wick up past an incorrectly-tightened (or not perfectly sealed) oil filler cap and then make a mess that looks a bit like a cam cover gasket leak.
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Post by jackyboy on May 3, 2016 23:04:16 GMT
Matt and horney this is good to read. Gives me a bit of relief. I will keep on top of the fluids as much as i can for combe and see how she gets on with two sessions. Atlex that is what i thought too, until the oil started escaping through a new cam cover gasket after a session at silverstone. I'm being a sceptical snatchbogger canoe here but the cam covers aren't really part of the oil ipressurised system - that oil was just seeping past a failed gasket because the engine was up to temperature and maybe a little hotter than usual by trackdaying (it'd probably have leaked slower on normal use). how much oil did you lose ? the risk is that you ran out and your oil pump was sucking air. As long as you didn't lose much oil you shouldn't have seen any significant difference in oil pressure.. You maybe right on all accounts. I know no better. Maybe the aftermarket gasket failed. They do say it should be oem. I did not lose much oil through the gasket. Just a few ml i guess trickled down the side. I checked the dipstick too and it was bang on in between min and max before the session and the next day it wag a little less that bang in the middle. I will check again tomorrow. And top back up when i get a chance. Speaking of coolant on another matter the car drank a a litre and a half of water during that session. No idea where its going. Loses on daily duties about a pint every two days. Had a few people look At it and no sign of blown head gasket or leaks.
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Post by jackyboy on May 3, 2016 23:06:47 GMT
Oil filler cap is good and no mess. Will double check tomorrow just to be double sure.
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Post by atlex on May 3, 2016 23:21:57 GMT
drinking a litre of coolant a day terrifies me.. get that leak-tested ? I'm trying to imagine how that is getting 'disappeared'.
also re the filler cap just make sure the lips are clean and tighten it down hard (as hard as you can turn it by hand). clean the areas the oil might be coming from until they're not showing anything on a papertowel, run it, take another paper towel to it after warming it up.. and again after a run.. and see how it looks.
captain obvious signing off.
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titch
Chats A Bit
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Post by titch on May 4, 2016 2:52:33 GMT
High oil pressure and using coolant, perhaps - and I could be very wrong here - the head gasket has gone between a cylinder, an oil gallery, and a water gallery? Cylinder pressures pressurising the oil, hence the leak (high oil pressure can obviously force it past seals etc), and water leaking into the cylinder, hence the water usage?
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Post by wannabe on May 4, 2016 10:24:33 GMT
If it's using loads of water then I think it must be the headgasket - nowhere else for it to go internally?? It's not 'steaming' out the exhaust at all? Although I think I recall it being mentioned that the pipes at the back of the engine sometimes fail - could you be losing water from a small hose leak when it's under pressure? When mine went I was using a header tank of water in about 50 miles and it was like I was leaving in a cloud of dry ice for dramatic effect when pulling away lol
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Post by jackyboy on May 4, 2016 10:53:54 GMT
I have had it looked at by a few mechanics and none have said its the headgasket, but maybe it is and its hiding down in the depths of the engine as you say. The exhaust sometimes spits a bit of water but never steams like crazy as the usual symptom. No mayo any where either. I dont know. I am going to get someone to look at it again Friday. I need to get my ass over to mark in Wales but not got funds atm.
Updating on the oil situation. It has lost more than initially thought. The dipstick is measuring it to be low. The other day it was just below the right level. The cam cover leak is more than i thought to, mostly towards the back exhaust corner of the cam cover. Coil pack is in the way so i cant get a proper look but i will top it up today and get the mech to check it all over Friday.
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Post by wannabe on May 4, 2016 11:24:26 GMT
Have you had a compression test and a leakdown test done?
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Post by jackyboy on May 4, 2016 12:10:02 GMT
Have you had a compression test and a leakdown test done? I couldn't say for sure. I just let the mechanics get on with it. If i .manage to get it to my local mech Friday i will ask what he will be doing to check for the problem. I dont wanna preach to him :/ I just put a litre of oil in. Will check the stick in a couple of hours. I also spotted oil down the bottom of the engine. Will try and get a pic.
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Post by atlex on May 4, 2016 12:22:34 GMT
Have you had a compression test and a leakdown test done? I couldn't say for sure. I just let the mechanics get on with it. If i .manage to get it to my local mech Friday i will ask what he will be doing to check for the problem. I dont wanna preach to him :/ I just put a litre of oil in. Will check the stick in a couple of hours. I also spotted oil down the bottom of the engine. Will try and get a pic. Ask your mechanic for the results. They're not the ones driving it, so you can't expect them to care quite like you do.
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Post by jackyboy on May 4, 2016 12:34:36 GMT
True that. here is what i found earlier The black stuff feels gritty :/ quite a bit on the undertray too. GULP
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Post by jackyboy on May 4, 2016 21:41:54 GMT
Topped up the oil today so I will keep an eye on the dipstick.
Baffles me that I have no loss of power or running problems.
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titch
Chats A Bit
Posts: 149
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Post by titch on May 5, 2016 5:14:06 GMT
The grit will just be dirt that's stuck to the oil as you've been driving, it's always like that when you have a bit of an oil leak.
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Post by jackyboy on May 5, 2016 9:12:16 GMT
That is good to know. Thought it was engine metal lol Booked in for tomorrow with local mech and possibly taking it to mark in Wales Saturday. Fingers crossed its ok and i can get back out there at comb next Saturday.
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jbuk
New Here
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Post by jbuk on May 5, 2016 12:31:39 GMT
That could be the camshaft oil seals hiding behind the top cambelt cover, had a similar filth issue myself.
Coming from the top of the engine down like that makes it a bit more likely.
Once I boosted mine and kept the PCV valve it blew both cam seals almost immediately, had done a year on track before so probably quite perished. Simple job to change them though.
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