Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 07-22-2020, 12:44 PM   #1
Chuck Dempsey
Senior Member
 
Chuck Dempsey's Avatar
 
Join Date: May 2010
Location: Waynesville, NC
Posts: 463
Default Electrical Issue

I've got a 1929 Tudor, with its 1930 engine with alternator, that's standard in every other way. After driving at least ten minutes and stopping, it will not crank back up. At first, it will fire over once, then nothing else. After three or four of these, it won't fire at all. When I take the distributor off, and wiggle the points, I get plenty of spark out of the coil. After letting it sit around 30 minutes, it fires back up. I thought the original coil might have been the issue, so replaced it with one from Snyder's. That didn't help any..... The new coil feels hot to the touch, but it is summer, in North Carolina. Any ideas?

Thanks
Chuck Dempsey is offline   Reply With Quote
Old 07-22-2020, 12:52 PM   #2
Patrick L.
Senior Member
 
Patrick L.'s Avatar
 
Join Date: May 2010
Location: Upstate NY and western Florida
Posts: 5,892
Default Re: Electrical Issue

Just to see if I understand correctly. The engine will crank, but, the engine will not start.
When it won't start have you immediately checked for spark ?

Off hand without any more info, I'm thinking either vapor lock or condenser.
Patrick L. is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 07-22-2020, 01:24 PM   #3
Chuck Dempsey
Senior Member
 
Chuck Dempsey's Avatar
 
Join Date: May 2010
Location: Waynesville, NC
Posts: 463
Default Re: Electrical Issue

The engine turns over fine with the starter. I get ONE cylinder fire, then nothing else. I Did check for spark quickly after that, and it looks fine then....
Chuck Dempsey is offline   Reply With Quote
Old 07-23-2020, 05:26 AM   #4
Patrick L.
Senior Member
 
Patrick L.'s Avatar
 
Join Date: May 2010
Location: Upstate NY and western Florida
Posts: 5,892
Default Re: Electrical Issue

When the engine is hot and won't start have you tried choking it ? Does the carb throat get wet ?
Patrick L. is offline   Reply With Quote
Old 07-23-2020, 07:34 AM   #5
Benson
Senior Member
 
Benson's Avatar
 
Join Date: May 2010
Location: Snork Key
Posts: 2,090
Default Re: Electrical Issue- Hot engine starts and using the choke.

pm sent 20500

Last edited by Benson; 07-26-2020 at 11:20 AM.
Benson is offline   Reply With Quote
Old 07-23-2020, 07:56 AM   #6
Jack Shaft
Senior Member
 
Join Date: Dec 2019
Posts: 704
Default Re: Electrical Issue

Sponsored Links (Register now to hide all advertisements)
Check primary wiring to coil,use test light on powered side see if light goes dim with key on.
Jack Shaft is offline   Reply With Quote
Old 07-23-2020, 09:45 AM   #7
rotorwrench
Senior Member
 
rotorwrench's Avatar
 
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 11,959
Default Re: Electrical Issue

Test light function would depend on whether the points are open or closed. Most folks used to carry a spare condenser. Ford put it in one of the hottest places on the engine. Fowled spark plugs can show up if the engine is using some oil or running a bit on the rich side.
rotorwrench is offline   Reply With Quote
Old 07-23-2020, 09:50 AM   #8
Bob Bidonde
Senior Member
 
Bob Bidonde's Avatar
 
Join Date: May 2010
Location: Long Island, NY
Posts: 1,926
Default Re: Electrical Issue

If all else fails, replace the rotor. There is a sneaky hi-voltage leak path from the rotor contact to the distributor cam that cannot be seen, and may be erratic with changes in temperature.

I would also suspect the condenser.
__________________
Bob Bidonde
Bob Bidonde is offline   Reply With Quote
Old 07-23-2020, 12:01 PM   #9
Chuck Dempsey
Senior Member
 
Chuck Dempsey's Avatar
 
Join Date: May 2010
Location: Waynesville, NC
Posts: 463
Default Re: Electrical Issue

I replaced the condenser yesterday, and on my single test so far, that fixed my issue. The carb was getting gas, and I tried different combinations of choke and no-choke. Hopefully the condenser was the issue, but if not I'll run through your various suggestions....

Thanks again!
Chuck Dempsey is offline   Reply With Quote
Old 07-23-2020, 12:26 PM   #10
old31
Senior Member
 
Join Date: Jan 2016
Posts: 1,300
Default Re: Electrical Issue

The best condensers are from A&L.
old31 is offline   Reply With Quote
Old 07-23-2020, 01:25 PM   #11
Tom Endy
Senior Member
 
Tom Endy's Avatar
 
Join Date: May 2010
Location: Southern California
Posts: 2,674
Default Re: Electrical Issue

Small hairline cracks in the upper composite section can also be a possibility. I experienced such a problem years ago. I discovered the problem one day after it was dark when I noticed sparks leaping around the upper section.

Tom Endy
Tom Endy is offline   Reply With Quote
Old 07-23-2020, 02:54 PM   #12
shew01
Senior Member
 
shew01's Avatar
 
Join Date: Sep 2016
Location: Roanoke, VA USA
Posts: 826
Default Re: Electrical Issue

Quote:
Originally Posted by Tom Endy View Post
Small hairline cracks in the upper composite section can also be a possibility. I experienced such a problem years ago. I discovered the problem one day after it was dark when I noticed sparks leaping around the upper section.

Tom Endy

Are you talking about the rotor?


Sent from my iPhone using Tapatalk
shew01 is offline   Reply With Quote
Old 07-23-2020, 05:03 PM   #13
Patrick L.
Senior Member
 
Patrick L.'s Avatar
 
Join Date: May 2010
Location: Upstate NY and western Florida
Posts: 5,892
Default Re: Electrical Issue

I Think Tom is talking about the composite distributor housing or distributor cap.
Patrick L. is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 06:18 AM.