Starter with a mind of its own

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TONKA

Junior Member
Joined
Dec 26, 2019
Posts
26
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6
Location
st Paul Minnesota
First Name
Preston
Truck Year
1983
Truck Model
K20
Engine Size
350
@illmanners this helps a lot I think the first couple starters were just chewed up due to improper mounting but the last has just been poor quality parts from AutoZone.
 

clendon1

Member
Joined
Aug 3, 2017
Posts
32
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29
Location
Polk City FL
First Name
Butch
Truck Year
1976
Truck Model
c10 stepside
Engine Size
468 BB
Take the starter to a starter / alternator rebuilder and have him put in good ( not Chinese ) parts and then bench test it, most starters that come from parts stores are just slapped together with inferior parts.
 

illmanners

Junior Member
Joined
Jul 10, 2016
Posts
28
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22
Location
Idaho
First Name
Phil
Truck Year
1985
Truck Model
C-10
Engine Size
350
Going back to your original statement, lets try to analyze the issue step by step. The starter worked originally but not well and not all of the time as it was mis-aligned? (Or was the mis-alignment issue with one or more of the previous starters?) If the starter you have now is in fact, one you had mis-alignment issues with, then during that mis-alignment period, you experiences undue wear on both the starter drive and the flexplate/flywheel ring-gear. Symptoms of wear on both the starter drive and the ring-gear are what you are experiencing now. First, disconnect the negative battery cable so no power can get to the starter. Pull the starter off and inspect the starter drive for gear wear. Next, remove the flywheel cover under the vehicle and inspect the flexplate/flywheel ring gear for undue wear, chipped or missing teeth. If both the drive and the ring-gear are okay, take the starter in to Autozone (or where you bought it,) and have them bench test it, paying close attention to how many amps it's pulling when the starter drive starts to spin. On the bench, the starter should draw 80 to 150 amps. (When bolted to the engine, fully charged battery, good state of tune,) should draw no more than 250. More than 150 or so on the bench or more than 250 on the car, and there is a starter problem. (pretty sure you are going to end up with a new starter.) So. new starter in hand, pick up new knurled starter bolts (could be either 2 or 3 of them, depending on which starter you have,) again making sure that both the starter and engine block mounting surfaces are perfectly clean, (I even take a wire brush to the mounting areas on both and remove the factory or rebuilders paint,) bolt starter up to exactly 35 Lbs torque. Hope that helps..Phil
 

Reinovator

Member
Joined
Jul 4, 2015
Posts
34
Reaction score
22
Location
N arizona
First Name
David
Truck Year
1977
Truck Model
c-15
Engine Size
350
Fix the bolts! clean out the treads on the block. Heili Coiling the block while still in the rig is an expensive way to go. get new bolts. you may even have to replace the starter or at least the Starter drive. if it's been out of alignment for a while. flex plate and or ring gear( if manual tranz is expensive also. spend the money on a good tap and some carb cleaner etc to clean out the treads with the tap. get new bolts go to a wrecking yard if you feel like it and find a rear starter brace oh they are not universal it depends on how long your starter is two or three different model starters and if your starter has the threaded stud on it, most do but not all. One more time fix the threads and bolts you will be much happier.
 

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