[Healeys] A bit of tuning advice

Bob Spidell bspidell at comcast.net
Tue Jun 29 09:58:36 MDT 2010


Oops ... the lift isn't checked at TDC, but at some point on the intake stroke. Don't know the exact procedure, offhand. 

bs 

-------------------------------- 
Bob Spidell - San Jose, CA 

----- Original Message ----- 
From: "Bob Spidell" <bspidell at comcast.net> 
To: "Paul Leeks" <Paull at glasgows.co.uk> 
Cc: healeys at autox.team.net 
Sent: Tuesday, June 29, 2010 8:54:52 AM 
Subject: Re: [Healeys] A bit of tuning advice 

Sounds like valve timing is off. You'll need to check the lift of the #1 intake valve at TDC to confirm, one way or another. 

bs 

-------------------------------- 
Bob Spidell - San Jose, CA 



After having problems with the poor running of my BN4, I put an electronic 
ignition in the distributer (which was also overhauled) and rebuilt the carbs 
using a carb kit. However, I still can't seem to get any power. 



I am pretty certain that the timing is right (having checked it with a timing 
gun), all the electric connections (plugs, cables, etc.) seem to be sound and 
I cannot identify any specific problems with the carbs (ie leaks around the 
inlet manifold, etc.). 



So I think the trouble is with the setting of the carbs, but I have been up 
and down the adjustment nuts (rich to lean and back again) without any 
success. 



The symptoms are ... a smooth idle, smooth but very sluggish pick-up on 
acceleration accompanied by a loud machine-gun type rat-ta-tat-tat! 



Any ideas? 



Thanks 



Paul Leeks 

Lancashire 

100/6 BN4 



Glasgows 
Customs House, Customs Way, Preston, Lancashire, PR2 2UW 



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