351C Starting Problems

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Nov 4, 2003 | 01:18 AM

ladewigm

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Junior User

Joined: Apr 2001

Posts: 93

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From: South Africa

351C Starting Problems

I have a strange problem..

My truck starts perfectly when it has been standing over night or for a long time and is cold, but as soon as I drive it and it gets hot it struggles to start. I still have the standard coil etc on the engine.

Any ideas?

http://www.f100.1965.8m.com

Nov 4, 2003 | 02:48 AM

macguyver

Posting Guru

Joined: Aug 2002

Posts: 1,214

Likes: 2

From: Minneapolis, MN

Could be heat soak affecting the starter or the timing is advanced a little too far.
First check the battery and cable connections, especially the starter cable. Then try moving the timing back a little when it acts up. If you've got headers, make a heat shield to go between the header and the starter.
If those don't help, it's probably time for a new starter.
Just my 2¢
Greg

Nov 4, 2003 | 08:34 AM

ladewigm

Thread Starter

Junior User

Joined: Apr 2001

Posts: 93

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From: South Africa

Thanks for the tips. I will check the cabling again and also the timing. I still have the stock exhaust manifold so I am not sure if they caused this problem. The starter motor is a little poked but I plan on rebuilding soon.

Nov 4, 2003 | 09:15 PM

ncl

Fleet Mechanic

Joined: Oct 2003

Posts: 1,371

Likes: 10

From: Green Springs, OH

Try routing the starter cable away from heat also If the wire gets too hot it causes it to produce more resistance to current flow thus causing the starter to buck like too far advanced timing.

Nov 5, 2003 | 08:54 PM

danlee

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Joined: Aug 2001

Posts: 4,270

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From: Delaware

I always had that problem until I went to #2 Gauge cable from the battery to the solenoid, and from the solenoid to the starter.
Also I use #2 Gauge cable from the battery (-) terminal to the ground connection.

Auto store cable is #4 gauge.