400 crankcases....

[Matt_Harrington]

I maybe overthinking things but whilst platigauging the crank shells, I noticed that the shells sit everso slightly proud of the half bore. As an experiment, I used a little plastigauge on the mating surface next to where the crank shells fit. Torqued down (without the crank) and then revealed the result.
What would you expect to find?

[robvangulik]

0,0

[Matt_Harrington]

Was that meant to be 0.0 ?

[Oddjob]

I'd imagine a gap at the bottom as the crank pushes the shell into the casing, hence why they stand ever so slightly tall.

[Matt_Harrington]

I'd imagine a gap at the bottom as the crank pushes the shell into the casing, hence why they stand ever so slightly tall.

Do you mean a small gap between the 2 small mating surfaces next to the shell housing?

[Oddjob]

No I'd imagine right at the bottom of the half circle, where the oil hole is.

[Bryanj]

The shells are always slightly proud and turn circular when casings clamped

[robvangulik]

Was that meant to be 0.0 ?

Yep, on the continent we don't point but we comma!

[Bryanj]

Damn forigners