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RE: Engine trouble

To: "Roger Bonnick" <>, <>
Subject: RE: Engine trouble
From: "Gosling, Richard" <>
Date: Tue, 1 Aug 2006 16:39:41 +0100
Hi Roger, and sorry to hear of your disaster!

Blue smoke is a sure sign of oil getting into the combustion chamber.

My gut instinct on this one is a valve or valve spring failure.  But a piston 
is also a good possibility.  It should be easy enough to check if it is the 
valve - remove the valve cover, inspect carefully, if all the valves and 
springs look the same then you probably haven't got the sort of problem that 
would cause your engine to die in the way you describe.

If it is a valve problem, it may be fixable without TOO much trouble, although 
the head may have to come off, but at least you can leave most of the engine in 
the car.  If all the valves look good, I suspect the whole engine will have to 
come out, the problem will be in the piston, or possibly the conrod.

You'll need an engine hoist of some sort, but there still shouldn't be anything 
there you can't do if you are prepared to have a go.  You'll need time, a 
garage, a sense of adventure, a Haynes manual, and our advice, but it's all 
do-able.  I kick myself now for some of the things that I paid garages to do in 
my first days of MG ownership, that I'm sure now I could have done if I'd had a 
go (clutch replacement).  Although, with my MG as my only source of daily 
transport in those days, time was never in great supply...

If it turns out your engine is toast (hope not), rebuilt replacements are 
available for #875, but let's hope you don't have to go down that route...

Richard & Sammy ('73 Black Tulip BGT)

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