Starter overheating question

[Bobg302DZ]

Im having a problem with the starter on my 68z turning real slow when hot. (Heat soak) Do starter heat shields work at all or should i just buy a hi torque mini starter? Thanks

[SS427]

Yes, they work very well. Also try looking at the positive cable. If this becomes corroded inside it will cause a lot of resistance and give you the same symtoms. An worn pull in coil will do the same thing.

[Bobg302DZ]

Thanks, Any preference on either The rigid bolt on type or the wrap around thermo tec insulation. Appreciate the help.

[WILMASBOYL78]

Check your cables like Rick says....then make sure the starter/solenoid don't have any issues...if the starter/solenoid and cables are all 100% you really should be ok...heat shield is good insurance....good luck..let us know what you find.


wilma

[PeteLeathersac]

Just in case, make sure your timing isn't too far advanced too..

~ Pete

[WILMASBOYL78]

Good point...

[firez]

My 68 Z had the same problem. I put a 8 inch piece of spark plug insulation over the solinoid wires that run to the starter close to the exhaust manifold .Seemed to fix the trouble for me.

[tirebird]

A very common problem with GM starters. I used heat shields, changed starters, etc., but nothing worked. The problem, especially if you have headers, is that the heat soaks the starter and the wires. I tested the voltage one time and only 6 of the 12 volts was getting to the starter because of the heat. The solution? Do what Ford did for years, use a remote solenoid. Mine is on the left fenderwall. Now, no starter problems. Here's a link explaining the solution.

http://www.oldengine.org/unfaq/solenoid.htm

[Steve Shauger]

[ QUOTE ]
Im having a problem with the starter on my 68z turning real slow when hot. (Heat soak) Do starter heat shields work at all or should i just buy a hi torque mini starter? Thanks

[/ QUOTE ]

If your engine is turning over slowly, then it probably isn't a solenoid problem. When a solenoid is heat soaked it won't engage the starter. Regarding it turning over slowly, as been stated check for corrosion at connections which can reduce cranking current. John Pirkle can rebuild your starter with a high torque winding, which will solve your problem and keeps your car looking original.

[68427caprice]

[ QUOTE ]
A very common problem with GM starters. I used heat shields, changed starters, etc., but nothing worked. The problem, especially if you have headers, is that the heat soaks the starter and the wires. I tested the voltage one time and only 6 of the 12 volts was getting to the starter because of the heat. The solution? Do what Ford did for years, use a remote solenoid. Mine is on the left fenderwall. Now, no starter problems. Here's a link explaining the solution.

http://www.oldengine.org/unfaq/solenoid.htm

[/ QUOTE ]

Is there a way to avoid this and still get the same results (ie high temp solonoid or ?) I have had the same problem with my 427 over the years, even with new wires and rebuilt starter and heat shield (hi temp fabric).

Jim