The way to eliminate the fuel question is to plumb in a fuel pressure gauge,
hang it where its visible and go for a drive and depending on what you see
move on to the electrical questions.
Since we have only sketchy info on the cars history and the problem only
occurs with the O/D engaged and the O/D gets power from the ignition
circuits (white) it's a fair guess, so do the same test only with an ammeter
this time.
dave
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 Greg Lemon
Sent: Friday, August 27, 2010 9:58 PM
To: Alan Seigrist; mdoust@allstream.net; healeys@autox.team.net
Subject: Re: [Healeys] BN1 I want to drive it
Alan, I have great respect for your knowledge of british cars and Healeys
and I sincerely mean that, but in this case I rather doubt there is a fuel
delivery problem, description of the issue is the car runs and accelerates
fine until you stick it in overdrive, my experience with fuel blockage from
sediment is that it cuts off the fuel over a time running, particularly if
running higher engine speeds, higher volumes of fuel causes the sediment to
rush to a restrictive point and then you don't have enough gas.
Kicking it into overdrive would not cause this problem immediately, it would
more likely manifest itself at sustained high speeds in direct top than if
shifting into O/D.
My money is on (can't remember John Harper?) whoever stated a high solenoid
draw or other issue with current draw when shifting into overdrive, causing
an immediate weak spark and the symptoms described. I would put the car on
jackstands, take the tunnel off and either test current draw on the solenoid
when in operation, or test by manually pulling the accuating lever and see
if it bogs when the electricals are not involved.
Greg Lemon
_______________________________________________
Healeys@autox.team.net
Donate: http://www.team.net/donate.html
Suggested annual donation $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe/Manage:
http://autox.team.net/mailman/options/healeys/frogeye@porterscustom.com
_______________________________________________
Healeys@autox.team.net
Donate: http://www.team.net/donate.html
Suggested annual donation $12.75
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
|