To navigate the issue of replacement I asked a few questions to the Bap Geon manager ,he gave me the indication that alot of starters from bosch are sold at his outlet and a few interesting stories with it.He indicated it might be the internal components that the other starter company is using and to not have conflict with the distibutor (oriellys)offers the lifetime warrenty.He then gave it a diffrent analogy that the manufacture gauges the part possible with components that are for a gas engine and not equiped to handle the stresses of what a diesel motor throws at it.Anyway
,the solenoid had its current running to the starter ,the starter had a failure or something else like a weak system due to weaker parts.
Looking back on it their were alot of mysteries that the O reilleys counter help could not answer ,like where the parts to build the starter came from ,no stamps ,no stickers to help the guys out for the answer .Does say built in the U.S.A. Import Direct should give this lie up ,a place of origin and putting the U.S. is a B.S. tool.

I have had the top bolt on the starter come loose. I now also put blue loktite on the threads

Does your car still have the brace on the tail of the starter which bolts to the block? If not it might allow the bolt to loosen.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

If you shop around, there is no reason not to use a Bosch rebuild. I just finished replacing a 300D starter and wouldn't take on the job unless necessary.

And nothing else will do .

The solenoids are the weak point and few rebuilders ever replace them and never use the BOSCH ones .

NAPA's Echlin brand is O.K. in a pinch, that's what the BOSCH factories in Mexico use, I've never had any problems with the Echlin solenoids .

Sadly all the rest are always a crap shoot .

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better