> Others have covered the the importance of not swapping main or rod
> bearing caps so I'll just mention a point that a old LBC mechanic told
> me to check on my rebuild if you have a 3 main bearing engine such as
> the your TR2-4a you should always check the crank and block are true
> when reassembling, by installing the crank with just the front and rear
> bearings and caps and putting a dial indicator on the exposed center
> main and measuring the run out at the center main while turning the
> crank over.
This actually only checks the crank for straightness, it won't detect a
defect in the block. You can do the same test with Plastigage, by checking
the center main clearance with the crank in 3 different positions.
Randall
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