Quote:
Originally Posted by GordonP
I bought what turned out to be a H & H Engine at a swap meet about 10 years ago for $100. Turns out it had about 1/4" front to back play in the crank. Took it apart. They had machined away the trust bearing portion of the rear main rabbit, and installed a small split washer on the crank.
The small piece they had added as a thrust bearing had fallen off and ended up in the pan. I took it back to them and they wanted $250 to fix it (reinstall the thrust surface and turn the crank). I junked the engine.
They have changed this design in engines I now see at swap meets. New design looks better - -larger thrust area.
The pictures below don't surprise me.
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There has very recently been a thread on another Ford forum about the engine pictured in an earlier post. Seems the issue is they use the middle main bearing for the thrust, something that will always end in failure, yet they won't learn according to the responses. I was at the repair tent at the National MAFCA meet in Reno a year or so ago and a chap there had an engine done by them. It had stripped the second timing gear in about 400 miles. A new one was fitted in the hope that he could get at least nearly home again to (I think) So Cal.
IMO, fitting hardened seats in a Model A engine should ONLY be done as a last resort. I've never done it and can't see that I ever will.
The OP is doing the right thing seeking advice before parting with his hard earned.