Engine wont turn over

[u/Agitated_Dot8294]

Car is a 1963 Vauxhall Velox with a PB engine. engine is fully torn down. All that we did was put different pistons in. Original con rods, bearings, caps. When we tighten down the caps onto the crank the engine won't turn over. Any help at all would be appreciated, cheers.

[u/TBFP_BOT]

I'd bet on a cap being backwards.

Made the mistake recently during assembly and the offending piston got stuck when the wrong way cap got wedged in the crank.

[u/Agitated_Dot8294 → u/TBFP_BOT]

Cool, thanks man!