How to diagnose hot starting issue?
#21
Le Mans Master
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
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Get a good heat shield.
While u do need good electrical connections what u are describing is heat soak from the exh manifold. As copper wire of the motor and solenoid windings heats up the electrical resistance increases and current decreases. Those wrap type shields are not shielding anything just wrapping in the heat once the starter heats up. Think thermodynamics here - heat conduction occurs when materials touch. Also when an air gap exists (no matter how small) heat can be carried away by convection. Where is your stock heat shield? All BB and sb corvette starters had a heat shield from the factory.
A remote solenoid ony adds more contact resistance between the battery and the solenoid/stater which drops voltage between battery and solenoid/starter which helps nothing - and that would only be permanant if left installed. Anyone that can read a very simple electrical diagram can see an "remote" solenoid just adds another set of contacts between the solenoid/starter. Just because FORD uses a remote solenoid doesm't mean it will help/fix a Chevy starter from heat soak. The FORD starter is a different design that uses permanent magnets and the starter motor windings field to pull in a lever arm that also throws out the Bendix gear where the Chevy uses its solenoid. The Chevy solenoid remains there still getting hot and doing all the hard work - pull in the contactor slug to send current to the starter windings and throws out the Bendix gear.
This looks like good heat shield on ebay for $14: http://cgi.ebay.com/ebaymotors/CHEVY...item20b08d4ca5
And i have pix of the one i bought and modified from JC Whitney - Gold Tone part #15177G. Take a look at pix (#2) in my sig link: http://members.cardomain.com/cardo0
Hope this helps,
cardo0
A remote solenoid ony adds more contact resistance between the battery and the solenoid/stater which drops voltage between battery and solenoid/starter which helps nothing - and that would only be permanant if left installed. Anyone that can read a very simple electrical diagram can see an "remote" solenoid just adds another set of contacts between the solenoid/starter. Just because FORD uses a remote solenoid doesm't mean it will help/fix a Chevy starter from heat soak. The FORD starter is a different design that uses permanent magnets and the starter motor windings field to pull in a lever arm that also throws out the Bendix gear where the Chevy uses its solenoid. The Chevy solenoid remains there still getting hot and doing all the hard work - pull in the contactor slug to send current to the starter windings and throws out the Bendix gear.
This looks like good heat shield on ebay for $14: http://cgi.ebay.com/ebaymotors/CHEVY...item20b08d4ca5
And i have pix of the one i bought and modified from JC Whitney - Gold Tone part #15177G. Take a look at pix (#2) in my sig link: http://members.cardomain.com/cardo0
Hope this helps,
cardo0
#22
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Member Since: Jun 2006
Location: Chehalis Wa
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My problem with hot starts was resolved with new battery cables purchased at NAPA auto parts. They made them right in the shop. About $80 for 2 negative cables and a 7 foot positive cable. When I cut open the sheath from the old cables (originals) there was corrosion inside of the cables.
#24
Racer
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Well it wasn't the cable - replaced them all and a heat shield didnt solve the issue.....
Corvettes of Auburn said they have diagnosed the issue, and that it is in the ignition system, and the solution is to run a bypass to the starter?? They claim its a common fault, and common fix. Apparently it a $40 part plus an hour to fit.
Corvettes of Auburn said they have diagnosed the issue, and that it is in the ignition system, and the solution is to run a bypass to the starter?? They claim its a common fault, and common fix. Apparently it a $40 part plus an hour to fit.
#25
Race Director
You must test the amperage of the purple start wire at the starter. Just testing the voltage isn't good enough.
There needs to be enough inrush to latch the solenoid.
(All the Ford fix does is possibly increase amperage to the start terminal)
This was also a problem with Ford systems They revised their "start" wire at the starter. They had a TSB for it.
Just because you changed the starter doesn't mean much these days, have gotten many that were not up to par.
There needs to be enough inrush to latch the solenoid.
(All the Ford fix does is possibly increase amperage to the start terminal)
This was also a problem with Ford systems They revised their "start" wire at the starter. They had a TSB for it.
Just because you changed the starter doesn't mean much these days, have gotten many that were not up to par.
#26
Well it wasn't the cable - replaced them all and a heat shield didnt solve the issue.....
Corvettes of Auburn said they have diagnosed the issue, and that it is in the ignition system, and the solution is to run a bypass to the starter?? They claim its a common fault, and common fix. Apparently it a $40 part plus an hour to fit.
Corvettes of Auburn said they have diagnosed the issue, and that it is in the ignition system, and the solution is to run a bypass to the starter?? They claim its a common fault, and common fix. Apparently it a $40 part plus an hour to fit.
Price is a little on the high side for the part but 1 hour labor is pretty fair.