Jump to content
Sign in to follow this  
jrw69

Mini Starter

Recommended Posts

Wanted some input on starters. 69 Mach with 351W, long tube headers having hard starting when hot. I have a stock starter now and was wondering about changing to a mini. I looked at the  PA Performance 1881 starter at CJ Pony. Has anyone gone this route and what are your thoughts on this? 

 

Thanks 

Share this post


Link to post
Share on other sites

If you are having a hard time starting the motor when hot, I would think replacing the starter is chasing the wrong problem.  If the starter does not have the same power when hot, the odds are it could be something else is contributing to issue that is not the starter.   Perhaps there is a weak connection somewhere that gets weaker when hot?  The problem certainly could be the starter, but it might not be. 

I had a similar problem.  I attached a wire from the connection on the starter to the plus side of a  voltmeter, and connected the negative side of the voltmeter to the engine block header bolts.  I could see the voltage during cranking was dropping significantly.  I had a bad starter solenoid.  

Consider vapor lock or a gas issue that could be the problem.  A new starter will not solve that problem. 

Share this post


Link to post
Share on other sites

Check the grounds.  They could be corroded or you might need more.  I had the same issue, and changed out all of the ground wires and made sure the connections were good and that helped out.  

 

Share this post


Link to post
Share on other sites

This sounds backwards, but if I know the engine bay is hot, I hold the throttle to the floor while cranking the engine. It seems to help with the vapor lock. Not pump, just push and hold.

As soon as it's firing I release the throttle. My car would crank fine, but wouldn't turn over. This trick solved the problem for me.

Share this post


Link to post
Share on other sites

Mini starters can be expensive. And some of the gear reduction aftermarket stuff can be noisy.  I had the same issue you are having, hard to crank over when hot with the 351W in my 1969 Mach 1.  This was many years ago, I went to the parts department at my local Ford dealer, the part number changed a few times, but I ended up with a late model permanent magnet gear reduction mini starter.  It solved all the hard starting issues.

If you have an automatic trans, I think a starter for a 1995 or so F150 with a 5.8L and automatic trans will fit.  Those are a PMGR mini starter and you can get one from a parts store.  Just do a close comparison before installing it, especially the drive gear.

Share this post


Link to post
Share on other sites
19 minutes ago, jrw69 said:

I have a 4 speed top loader. I will check out gear reduction starter

Thanks

  Let me know whatever you install, like to know does it do any good on hot engine.  What works and don't works ?

Share this post


Link to post
Share on other sites
3 hours ago, jrw69 said:

I have a 4 speed top loader. I will check out gear reduction starter

Thanks

Keep in mind, an auto trans starter will not work on a manual transmission.  A couple of things to remember when selecting a starter for your car. (1) Do you have a 164 tooth or 157 tooth ring gear.  If you have an 11" clutch (standard on 351W cars) then you will have a 164 tooth ring gear.  If somebody installed a 10.5" clutch setup like used on the 302 engines, then it would have a 157 tooth flywheel. (2) Manual trans cars use a 3/8" offset drive gear on the starter and an auto trans car uses a 3/4" offset.  An auto trans starter will bolt on a manual trans, but because the drive gear sticks out further, it will never disengage from the ring gear, (guess how I learned about this.) 

Share this post


Link to post
Share on other sites

1969_Mach 1   

Thanks for this reminder. I have a 11" clutch so must have a 164 tooth ring gear. I wasn't sure of the offset. With the top loader it should be a 3/8" I assume.

Share this post


Link to post
Share on other sites
3 hours ago, jrw69 said:

1969_Mach 1   

Thanks for this reminder. I have a 11" clutch so must have a 164 tooth ring gear. I wasn't sure of the offset. With the top loader it should be a 3/8" I assume.

Yes, that's correct, 3/8" offset.

20 minutes ago, RPM said:

An exception to this rule is when using a 157t flywheel an auto starter is the correct one to use. 

I had no idea that was the case for a 157 tooth flywheel.  I learned something new.

Share this post


Link to post
Share on other sites

Oh ya, gotta count those teeth. Something I learned while searching for my flywheel is that Ford makes a 160 tooth flywheel. True story. 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...