I know there is a current thread with a similar issue, but didn't want to hijack. And bear with me, this could get long.
Chronic problem, and having spent a few more
hours on it today, I'm nearing wits-end.
73 Camaro, was a 383/700R. Was fine for the most part, started to have starter (small mid-late 90s GM type) issues shortly before it was rebuilt due to vibration issues. After the rebuild (which included a batt move to the trunk), it was okay for a short time with the same small starter, but began grinding/clanging. Put a new OE type starter on it. Fine for a while, but began the same problem again.
Well, less than a year later "Bertha" (that's for you Jim
) completely came apart. So out with the mix-matched parts of a 383 and in with a straight (punched out) 350 roller/Richmond 6spd. And again, the same story. Big OE or late-model mini (have tried several of each), they will be okay at times, but very
rarely doesn't it sound right. Not just "not right", but downright ugly grinding (hasn't clanged with the new setup). It'll make you cringe. It's like just as soon as you tweak anything regarding it, you think it's good, but tells you NO! before long.
168 tooth flywheel (new w/the conversion), staggered bolt pattern starter(s). Starter snout is not interfering with the Lakewood BH, so not misaligned there. Nothing fancy, should be a pretty straight forward setup now.
Have shimmed it from zero to many, and every combination in between. Doesnt seem to matter even though it surely sounds like it should be that. Checked the elec today, since I've seen that mentioned as a possible cause to similar problems. Cables are good and tight, added star washers at all connections today as well as moving the batt ground to a sure location. That made no difference, dropped in a new, out-of-the-box GMPP HEI. Didnt matter. Does not respond to eliminating the power to the dist, so my most-current theory of a voltage issue is ruled out (I think?)
There is just one wire down to the solenoid, but being a factory harness there would/should be two. This was done years ago when changed over to the small starter (I would think) and don't know the status of the second wire. Maybe issue there? Would any issue there even cause this?
I'm running out of ideas here. Haven't encountered anything like this chronic starter grind/clash. The only thing that hasn't been changed is the car itself. After bearing through the god-awful sound for a couple seconds, it fires right up and runs great. But it's still not right.
What's really frustrating is that after having fooled with it for so long, it has
to be something simple. How it usually goes, right?