crank scraper

[d.o.h.c]

has anybody use the crank scraper or bought one. i am at the point where i can still put one on my engein. are they safe. any one test it

[napatiger]

I put one on (95MC Z34). You MUST turn the crank by hand to check for clearance.

My machinist took a look at it, he has a race truck. He said it was cool, but really wasn't close enough to do much good.

[SappySE107]

There is a teflon version that touches the crank but it costs more. It requires more work as well since you have to use a knife to get it to just touch the crank, and then let it bed in.

[Mach10]

How much clearance do you need on that scraper to take into account stretch and flex from the crank at 6500rpm?

Or is it a case of laying on some paint on the crank, setting it close, making a run, and checking for scuffs?