We have a roadster new comer here in Ma. The machine shop told him his U20
block and crank were no good.
I gave him a spare block and crank I had with the understanding that he pay
me what its worth when he is done with the rebuild.
Here is the problem. They told him my crank was no good and has to be built
up with welding and recut. I thought that was a technique reserved for cranks
which oversized bearings are not available or large 18 wheel truck cranks
with a million miles on them. As far as I know this crank hasn't been
previously
cut so it should be machinable to fit an oversized bearing. Are we missing
something or are we getting bad advice from the shop????.
The block. One piston was frozen and had to be driven out. They told him
the block needs to be SLEEVED and he still needs oversized pistons. Ok as an
old
Triumph owner (that used a sleeved engine) I thought the main reason an
engine was sleeved was make the sleeve and piston changeable OR if oversized
pistons were not available. But why bore in a sleeve AND still need oversized
pistons????? Are sleeves even out there for the U20???
Is this machine shop just giving us some bad advice?
Thanks for any input,
DAVE
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