Ok, I've had a chance to take out the sparking plugs and perform a
compression test. Plugs from cylinder 1 & 2 looked normal, 3 & 4 looked a
little oily (but not badly). Cylinder 2 pressure tested to around 60psi,
all the others tested to 155ish.
I'm thinking a head gasket, or does that always mean water in the oil? (of
which there is none). Can dodgy valves cause pressure drops?
Thanks,
Tony Sheehan.
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On Behalf Of
Tony Sheehan
Sent: Wednesday, 28 August 2002 11:14 PM
To: MG genius list
Subject: Running roughly and blowing blue smoke....
My wifes 65MGB is running like a tractor, power is down, and it blows blue
smoke, especially when idling and as you rev to pull away. It is not
burning a lot of oil, and there are no other unusual mechanical noises,
other than the sound of rough running (which could be, to be honest, hiding
subtle noises). My first thought was a blown head gasket, but there is no
water getting into the oil (oil is still black, not creamy). Could it still
be a head gasket, or am I missing something else?
Thanks,
Tony Sheehan.
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