[Healeys] No acceleration

[Norman Nock]

Paul Leeks ... This first thing to check is cam. timing , this is covered in
Chatter 1998 Jan. and in my book Tech Talk page 171    ... Norman Nock 


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--- On Wed, 9/16/09, Paul Leeks <Paull at glasgows.co.uk> wrote:

From: Paul Leeks <Paull at glasgows.co.uk>
Subject: [Healeys] No acceleration
To: healeys at autox.team.net
Date: Wednesday, September 16, 2009, 1:05 AM

Chaps

I cannot seem to get the engine of my 100/6 BN4 running at all well.
About six months ago, whilst thrashing the old thing along the motorway, I
managed to blow a large hole in piston #5.
This was undoubtedly caused by detonation (the timing was along way out!).
Since then I have rebuilt the engine with new pistons and exhaust valves.
On start up everything fired up fine first time and the engine turns over
nice and smooth at idle.
However, although the car will cruise nicely up to 3,000 rpm (the fastest I
want to go whilst running in), it has no power whatsoever; coughing and
spluttering on acceleration.
I have checked the timing (with a strobe light) and checked and oiled the
distributor weights, changed the points, condenser and rotor arm.
I have also changed the coil.
I have checked the gaps on the valves and the new spark plugs.
I have cleaned out and reoiled the carburettors and adjusted and readjusted
the carburettors (with colourtune) several times to no avail.
I have cleaned and oiled the air filters (although these are currently not
fitted).

What else can I check?  All suggestions will be very gratefully received :-)

Many thanks
Paul Leeks
Lancashire UK

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