CUTLASS Starting problem after driving

[350goldghost1]

Ditto battery. I just went through that. Started cold but when it got hot it acted like a starter but was the battery. It needs a load test- any decent mechanic can do it in 5 minutes or just buy one. This is one of those tools you really need to have around. It tests both the battery and the alternator.

Thanks I will have to check it the Motors just been fully rebuilt new battery new high torque starter new alternator new carburetor it runs beautiful . when you shut it off after driving it for 20 minutes and you let it sit it's hard to start it back up

 

[Bonnewagon]

new battery new high torque starter new alternator new carburetor it runs beautiful

Hmmmm. Sounds like everything is up to snuff. There is one last thing. The "purple" wire going down to the starter. Check the connection at the solenoid, the whole length of the wire, and at the firewall connector. Long ago I had to reach up under my Firebird to jam a screwdriver in and short the starter terminal to the battery wire when it got hot. Drove me crazy. Years later I had to remove the fender and I found the wire at the firewall almost chopped clean, maybe 3 strands left. Started great cold- not at all when hot.

 

[350goldghost1]

So it cranks up no problem when cold soon as you drive it for a little bit and shut it off and wait a little bit and try to start it all it will not crank

so after I drive it a little bit and shut it down and let it sit and try to start it the motor will crank just not start

 

[350goldghost1]

Hmmmm. Sounds like everything is up to snuff. There is one last thing. The "purple" wire going down to the starter. Check the connection at the solenoid, the whole length of the wire, and at the firewall connector. Long ago I had to reach up under my Firebird to jam a screwdriver in and short the starter terminal to the battery wire when it got hot. Drove me crazy. Years later I had to remove the fender and I found the wire at the firewall almost chopped clean, maybe 3 strands left. Started great cold- not at all when hot.

I'm going to get under there tomorrow and take a look at it make sure that starter is nice and covered with the heat shield wrap and look at the wires somebody told me it could be timing is off but I don't know how to do timing

 

[69hurstolds]

Sounds like it's not the battery or starter if it cranks/spins over when hot. Getting spark during the hot cranking? Only need spark, fuel, and air and you got fire. Air probably is a given. Fuel system ok? Carburetor I assume? Is it getting fuel during this hot crank? HEI distributor I imagine?

Sorry for the 20 questions, but gotta start somewhere.

 

[pagrunt]

Going to a fuel issue, do you have a heat shield under the carb or even the right gasket to keep the carb & fuel from heating up to cause vapor lock?

 

[Bonnewagon]

Heat soak will affect the module in the HEI distributor. That is why they include some special grease to apply to the underside of the module. If it was not applied- maybe no spark. Is there an EFE valve in the exhaust manifold? If stuck shut, all exhaust is forced under the carburetor which gets real hot. Heat soak can boil the fuel bowl dry. Lastly- after how long sitting will it start and run?

 

[SoFloG]

Does the engine crank(turn over) at a slower speed when it's hot, than it does when it's cold?

 

[lilbowtie]

So it cranks up no problem when cold soon as you drive it for a little bit and shut it off and wait a little bit and try to start it all it will not crank

so after I drive it a little bit and shut it down and let it sit and try to start it the motor will crank just not start

Boy I'm a little confused - I thought it wasn't a cranking problem thinking fuel - then it was a cranking problem - then it's not a cranking problem?? I'm with
Bonnewagon, had both the module and carb problem back in the day - check the venturies

 

[pontiacgp]

If it cranks slow after the engine is hot that could mean the timing is too far advanced.