Sirs: Have an '85, 2.2L, diesel with multiple failures, probably instigated by the failure of the roller in the vacuum pump...the bearings sprayed to the four winds in that section of the engine, and these, interjecting themselves between gears and the chain, causing the alignment pin between the camshaft and camshaft gear to shear, and the rest is a diatribe of metal talking to metal in the worst way.
The ball bearing[one] that I recovered looked as if it had been on the bottom of the Colorado river for awhile...
Have any of you had a similar misfortune?
This trail of discovery has taken me some time to unravel.
A caveat...if any of your '84-'89 vintage 4,5,or 6 cylinder diesels sound a little rough...something that sounds to be in the chain drive, and that turns up negative, also inspect the pump.
Makes me wish the pump were electric, or driven by the fan belt!