Slow starter hot restart - voltage seems good.

[Rubatoguy]

My '71 300 is exhibiting slow starting during a hot start - that is after the engine is warmed up, and stopped, then restarted after sitting several minutes.
The voltage displayed on an aftermarket gauge looks good.
After having the battery checked, are there any other common issues to check out?

thanks,
Todd

 

[Jakter]

You can do a voltage drop test but if it was me I would clean battery cable connection, positive and negative, pull the starter and clean the mounting surfaces on the starter and bellhousing and discard any bolt on battery cable ends.
If nothing gets better I would bring the starter to a known good local starter rebuilder.

This is of course by slow starting you mean slow cranking.

 

[Big_John]

Try knocking the timing back a few degrees and see if helps.

 

[MJFUR]

Slow cranking when the engine is hot but clears up after a few minutes of cooling off?

I had the same issue with both the OEM starter and a new Mini Starter (for header clearance). My guess is it's the original wiring. It's old and has more resistance than when new. When it gets hot it builds even more resistance.

 

[halifaxhops]

Try knocking the timing back a few degrees and see if helps.

Had that on my dart

 

[Rubatoguy]

Thank you all. I will be checking the wiring and grounds. The car has had some rewiring in the engine compartment, including removing the alternator gauge, so it makes sense to test the voltage at the starter and all the connections as a first step!

 

[Gerald Morris]

My '71 300 is exhibiting slow starting during a hot start - that is after the engine is warmed up, and stopped, then restarted after sitting several minutes.
The voltage displayed on an aftermarket gauge looks good.
After having the battery checked, are there any other common issues to check out?

thanks,
Todd

Need more data.

When you type "slow starting," do you mean, "slow to start with a normally fast starter motor spinning the engine" OR

"a SLOW TO TURN THE ENGINE" starter situation?

If the former, then attend to carburetor, fuel line, then ignition, as any of these can cause this problem.

If the latter, check starter wiring, then, starter.

There remain other possible causes, but these two categories address most of it.

 

[ynst]

worn out starter bearings (oilite bushings)

 

[Gerald Morris]

worn out starter bearings (oilite bushings)

Yah, can be, but let's see what data our OP gives us. Thus far, insufficient.