ford fordor 1940 v8 won't start whwn warm

[jan quaak]

My ford fordor 1940 V8 won't start whwn the engine is warm
when it is cold it starts, it gets fuel and the engine turns round
can someone help me

[RalphM]

Check your coil, could be a bad condenser as well. Sure sounds like you've got an ignition issue.

[jan quaak]

Oke thanks, i try to find out if the are stil oke

[Terry,OH]

does the engine stall when warm, and then refuse to start? then look at the coil and condenser. When you stop the car after it is warm it then refuses to restart? Will it start again if you wait only a few seconds or only after a couple of minutes then no restart? if so look at the carburetor power valve leaking aroung gasket or defective diaphragm and leaking through there. Does it not start because it is turning over very very slowly or hardly at all? Then look for a bad battery cable or incorrect cable size or dirty cable connections. More detail would be helpful.

[jan quaak]

The engine does not stall wen it is warm. it runs very smoothly when it is warm and it also eactrs to the gas pedal very well but when it is turned of and it stands for 10 or 15 minutes it wil not start, the starter engine turns good round and when i push the start button it try to fire up for 1 oder 2 seconds and then it doent goes on when i try to start it up when it is stopped and directly afther started it will start again.

[Ken Bull]

Sponsored Links (Register now to hide all advertisements)

Mine was hard to start when warm. Rebuilt Carb, with Daytona kit and runs great and starts on 2nd revolution or less. It was running rich and flooding.

[jan quaak]

oke thanks i try it my carb is also flooding
what kind of a carburator do you have

[Brendan]

battery cables loose, it will crank good but not getting the right voltage to the coil. i had that trouble would not start when it was hot. the cables where loose on the starter switch. tightened them up and then it cranked right up

[Ken Bull]

Originally Posted by jan quaak

oke thanks i try it my carb is also flooding
what kind of a carburator do you have

Holley 94 rebuilt with Kit # 601 ($35)from Daytona Parts Co, that includes their a modern design Valve that prevents flooding.

[Brooks]

Try by passing the resister with a jumper wire & see if it will crank. If it does put a diode wire from the starter side of relay to coil that will solve your problem.

[Ken/Alabama]

Get your coil rebuilt

[petehoovie]

Originally Posted by jan quaak

My ford fordor 1940 V8 won't start whwn the engine is warm
when it is cold it starts, it gets fuel and the engine turns round
can someone help me

I had the same problem with a '57 Chevy I once owned. It would start easily when cold with outside temperatures in the minus 20 below zero range. When the engine reach normal operating temperature and then was turned off, it would not start again until it cooled way down. Replacing the resistor resolved this problem....

[G.M.]

This is typical of 99.9% of all Ford coils from 1932 to 1948.
Even new NOS coils and most repro coils have this problem.
Skip Haney in Florida rebuilds the stock coils using modern
insulation of the wire and material between layers which
solves the problem plus almost a lifetime warrantee. In 20
years of rebuilding service Skip has never charged for repair
of any coil he rebuilt other then a few that left the ignition
switch on and the points were closed. This dead shorts the
wiring and burns the them up. Original coils also give a
weak spark as they get hot. Almost every old coil will work
good when cold. A coil must be tested cold and hot to
determine how it works. Contact [email protected] for info.
G.M.

[Graeme / New Zealand]

Originally Posted by G.M.

This is typical of 99.9% of all Ford coils from 1932 to 1948.
Even new NOS coils and most repro coils have this problem.
Skip Haney in Florida rebuilds the stock coils using modern
insulation of the wire and material between layers which
solves the problem plus almost a lifetime warrantee. In 20
years of rebuilding service Skip has never charged for repair
of any coil he rebuilt other then a few that left the ignition
switch on and the points were closed. This dead shorts the
wiring and burns the them up. Original coils also give a
weak spark as they get hot. Almost every old coil will work
good when cold. A coil must be tested cold and hot to
determine how it works. Contact [email protected] for info.
G.M.

I'll vouch for this . I had numerous starting problems with my car using a cylindrical coil 6v ( part of the problem I since found of was the inbuilt resistor when my car has one under the dash....could that be your problem?). When that coil quit I sought the advice of Skip and got one of his original rebuilt coils. This has made a big difference. I can start it with confidence wherever I stop. As a result the car also does not spend as much downtime on the battery charger as it used to.


GB