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Synchro909 · 04-23-2021, 07:55 PM

Was the motor rebuilt by someone experienced in doing motors from this era. Many younger rebuilders set tolerances way too tight, jus like they would in a modern engine. The result is just like you describe. If that is so, I suggest dismantling it and checking the clearances. You may have to give the bores a lick with a hone and put some shims in the bearings.
If it has sat for a long time, I wouldn't try to start it without turning it over enough times to get oil through everything. What oil might have been in it will have drained away from where it is needed.

04-23-2021, 07:55 PM	#2
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 7,496	Re: Tight Engine Troubles? Was the motor rebuilt by someone experienced in doing motors from this era. Many younger rebuilders set tolerances way too tight, jus like they would in a modern engine. The result is just like you describe. If that is so, I suggest dismantling it and checking the clearances. You may have to give the bores a lick with a hone and put some shims in the bearings. If it has sat for a long time, I wouldn't try to start it without turning it over enough times to get oil through everything. What oil might have been in it will have drained away from where it is needed. __________________ I'm part of the only ever generation with an analogue childhood and a digital adulthood.