vinny1275
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| posted on 23/11/11 at 05:57 PM |
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Pinto blowing oil?
Evening all,
After having fixed the megasquirt and got the ignition advance running properly, I've been trying to sort the coolant temperature sensor
settings, which were a bit all over the place. Seems better now, but...
While the engine was running, I was feeling the water pipes to see if the rad was getting hot, and there was a pop, and smoke coming off the exhaust
headers. I stopped the engine, and there was hot oil in all the spark plug recesses - it seems to have come out of the spark plug threads once the
oil's got hot and pressurised (there were bubbles appearing in the oil in the recesses, which makes me think it was being forced out of the
threads). There is an oil cooler fitted, with a thermostatic take-off.
There's a breather vent in the crankcase, and another from the cam cover, which are tee'd into an oil catch tack, which has a vent on it
(and I could see vapour coming out of the catch tank vent).
Sooooooo, any ideas why the oil's managing to get out? Too much oil / too thin an oil / oil getting too hot / over pressured? The spark plugs
are done up nice and tight..
Ta,
Vince
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AndyGT
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| posted on 23/11/11 at 06:07 PM |
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http://locostbuilders.co.uk/viewthread.php?tid=163402
nothing is impossible
everything is possible
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snapper
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| posted on 23/11/11 at 07:32 PM |
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Blocked breathers or....
Do a compression test, worst case rings
Could be valves seating and stem seals
There's lots of reasons start simple
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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mookaloid
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| posted on 23/11/11 at 07:32 PM |
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I'd be suprised if the oil was coming out of the plug holes. more likely to have leaked from the rocker cover gasket. the bubbles will be a
little bit of combustion gas getting past the plugs probably.
"That thing you're thinking - it wont be that."
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mcerd1
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| posted on 23/11/11 at 09:45 PM |
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the rocker cover gasket is a good bet - are you using the special shaped washers ?
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