11-02-2020, 05:47 PM
Hi All
Sorry for posting several threads on my engine build but new questions come up as I continue. I have the 1 1/2 crank and Nippy rods assembled (trial assembly) in the case and I think everything turns without hitting anything. I will fit trial fit the block and pistons in due course for a more accurate check.
But by how much should everything clear things. For example in another thread Parazine suggests 3/32” as a gap between the crank and middle cam bearing. Currently I have 50 thou!!
I have even less between the button head big end caps and the camshaft but this is more difficult to measure until I get the block and pistons in place.
I was originally working on the assumption that the oft quoted 20 thou for crank whip would be a good start (my 1 1/2 crank shouldn’t whip by this much!)
Advice please
Cheers
Howard
Sorry for posting several threads on my engine build but new questions come up as I continue. I have the 1 1/2 crank and Nippy rods assembled (trial assembly) in the case and I think everything turns without hitting anything. I will fit trial fit the block and pistons in due course for a more accurate check.
But by how much should everything clear things. For example in another thread Parazine suggests 3/32” as a gap between the crank and middle cam bearing. Currently I have 50 thou!!
I have even less between the button head big end caps and the camshaft but this is more difficult to measure until I get the block and pistons in place.
I was originally working on the assumption that the oft quoted 20 thou for crank whip would be a good start (my 1 1/2 crank shouldn’t whip by this much!)
Advice please
Cheers
Howard