Has anyone seen anything like this before?





Weird thing is all of the lifters look fine. No signs or irregular wear or anything. I measured the base circles of several of the lobes ant they were different. 1.390 on some and 1.425 on others. Is this normal? Any input would be great.

 

i posted some pics of an F13 looked kinda like that.

 

thats horrible looking, what cam is that. f13?

 

is that a chunk missing from the cam? also you will see some wear on a cam but shouldnt be that much

 

Yeah there are chunks missing on about half of the lobes.

 

What caused it? Bid the cam manufacturer do anything about it?

 

wow now that is scarry

 

yeah there was a large hoo-la (is that a word?) about it recently. search for it im sure you will find it, i beloieve the thread was called "f13 carnage" i didnt follow it too closely because i dont have one, but im pretty sure Futral did something about it

 

Jesus man what happened??

 

Don't know for sure yet. It only had about 850 miles on it.

 

Any other ideas on the cause?

 

Yes, sadly many of us have pulled out cams that look like that. Many different opinions about what may have caused it ranging from improper hardening, insuficcient spring pressure, improper cam grinding or polishing, etc. F-13s had a bad batch last year and allan is replacing some torn up cams. if thats an f13 contact allan and see what he says.