[Healeys] Rough running

[R F BEGANI]

Sounds like my BJ8 when I brought it to South Florida where 80 is a cool day. I fixed the poor starting power by cleaning the negative and positive connections. I replaced the negative clamp on the battery. Once you know positively the you have a solid grounds and a fully charged battery it is amazing how the engine will start when the engine is hot. Also, I had my radiator boiled out, installed a pusher fan with manual switch so that I can turn on the fan when driving under 4k rpm and I leave it on while idling before shutting off. 

 Inaddition i installed a shovel between the radiator and the front frame member to direct air into the radiator instead of under the car. This is on a recently rebuilt engine. so now when the engine is at over 200 degrees the engine starts. And when driving at 40 mph in traffic and the temperature drops to 212 without the fan and at 70 plus on the freeway it operates at around 200. I should have wrapped the exhaust manifold etc. Will do next time I feel like taking off the carbs. 

Bob Begani
67 BJ8

On November 12, 2020, at 11:19 AM, WILLIAM B LAWRENCE via Healeys <healeys at autox.team.net> wrote:

Sounds like the standard, factory correct Healey vapor lock. When the engine is turned off residual heat soaks out of the engine and boils the fuel in the float bowls. Try cooling the float bowls with a spray of water or a wet rag. If that solves it you know the problem, although not necessarily the solution.


Bill Lawrence

BN1 #554

From: Healeys <healeys-bounces at autox.team.net> on behalf of Keith Pennell via Healeys <healeys at autox.team.net>
Sent: Thursday, November 12, 2020 3:26 PM
To: healeys at autox.team.net <healeys at autox.team.net>
Subject: [Healeys] Rough running 

 

Two days ago I took the BJ8 out for its every-four-month exercise.  Just as before it ran beautifully for the first 8 or so miles then began to develop a miss.  Temp gauge around 180 and ambient temp 80-82 F.  When I stopped for some photo taking it would not restart (as I was afraid it would).  Temp gauge above 220.  After a 20 minute cooling off and allowing the temp to drop below 200 it reluctantly restarted, still with a miss, and I hurried on home. 

Any thoughts on what is the cause of this behavior?  

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