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Petteroids / Re: Petter PC1 Engine in a Crawley 75 Tractor
« on: April 20, 2023, 08:25:46 PM »
Replied via PM.
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I think some engines didn't have a Z, but rather had an A for anticlockwise, like his engine. My clockwise rotation SR2 has no suffix letter
The same engineer suggested unbolting the conrod and checking for wear/damage with a view to replacing the bearing. Now I have seen there are different thicknesses of replacement bearings shells to ( I assume) account for wear such as I may have. He suggested this should be an easy thing to do and check... he's experienced I am not
My questions to the enlightened is ..... is is a relatively simple thing to unbolt the conrod via the open side of the crankcase.
Then is it a matter of checking the surface as well as measurements of the shaft the conrod bearing clamps to. If there is not real wear replace the shell bearing with like for like ....
If there is wear replacing the shell bearing with one to compensate for the wear?
Obviously if the crankshaft surface is damaged too badly i expect that it is the crankshaft out to have it build up and turned back to spec?