Check the basics.
Compression. Assure that the TDC mark is accurate. Cam timing. Fuel supply.
Point gap and condenser. Spark plugs. Carbs lastly.
dp
frogeye@porterscustom.com
Porter Customs 2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2 1959 AN5
Porter Custom Bicycles
cars:
www.britishcarforum.com/portercustoms.html
gallery:
http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff
blog: http://porterbikes.com/
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Paul Leeks
Sent: Wednesday, September 16, 2009 2:06 AM
To: healeys@autox.team.net
Subject: [Healeys] No acceleration
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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