I have a 93 4 wheel drive f-250 with a 5.8 an a 5spd every starter that has been put in this truck stays engaged an burns up. Any ideas? Solinoid staying on maybe?

 

I wish I could think of the name of the function, but the starter both spins the gear, and pushes the gear out to turn the motor over. It sounds to me like the gear isn't retracting, which could be a solenoid issue. Solenoids are cheap and if yours has never been replaced, you should probably replace it anyway so if that doesn't fix it, at least it was preventative maintenance.

 

Solonoid is kina what i was thinkin. Hope thats what it is,would sure cut back on shoveling if the plowtruck stayed runnin.

 

I think you're looking to call it a Bendix drive, but it really ain't. A true Bendix drive uses only a spring and inertia to engage/disengage the starter gear to the ring gear, while our trucks use the starter-mounted solenoid to do this.

If it's eating starters, I'd think either the solenoid is remaining powered, he's just had a bunch of starters with stuck solenoids, or the parts store is giving him the wrong starter and it's staying engaged with the ring gear even after being de-energized.

Take it out and bench test it. See if the starter gear is retracting fully. What shape is the ring gear in?

 

Automatic starter in a manual truck?

The flywheel is thicker than a flexplate.
I know this is the case with 460's, but am not sure about a 351.

 

I changed the transmission an transfercase out of the same year half ton, then it started doin it. It never did it b4 but the truck was jackknifed with a fifthwheel trailer on, the deck of the trailer caved in the passenger door an im guessing busted something in the trans, when i got it it was stuck in 4th gear. I put the original starter in it then 4 other used ones outa various other trucks i have one was an auto the rest standards.

 

Complete new clutch assembly including flexplate and steady bearing were installed at time of trans swap, trans an t-case were all same numbers as what came out of the truck. Only thing that was different was output yoke to front drive shaft,changed that to fit the larger 3/4 ton u-joints.

 

Just a quick question but is it doing it as soon as the new starter is in or is it a problem after time? Are you running long tube headers? If you are you may try wrapping the headers down by the starter to reduce heat on the starter.

 

Does your '93 have both a solenoid on the starter (PMGR) and a solenoid (relay) on the fender?

 

A 5.8/manual wasn't offered in a F150 , what engine did the trans come from? You might be having issues w/ a non compatible bell housing and flywheel. The 5.0 engines used a 157 tooth flywheel where a 4.9 and a 5.8 uses a 164 tooth flywheel, since the bell housing is where the starter mounts it needs to be the right bell housing for a specific flywheel.

 

I don't remember the details but this is why the smaller PMGR starters (beginning in 92 I think) require a solenoid on the starter in addition to the fender solenoid and factory wiring pattern must be used.

 

Yeah, You cannot jumper the hot lead.
Run the heavy starter cable from the battery+ side of the fender mounted solenoid and a 12Ga. wire from the switched side of the fender solenoid to the starter solenoid trigger.

Remember, an electric motor becomes a generator if it is driven.
When the ring gear starts driving the starter, it is powering itself on, and the fender solenoid will/cannot stop it.