Glad I changed camshafts

[threewood]

So I swapped cams in my GTX in May. Not because it was running bad, but because I wanted a bit more duration. Old cam was a Hughes STL3842 with Hughes supplied edm lifters. And I always used either VR1 or Driven oil.

So I started looking at the cam and noticed crown was gone on several lifters and cam lobes had taper worn off. It appears they were all still spinning somehow as the wear is uniform. One cam lobe pictured is shorter and rounder than the rest.

That cam was in 9 years with a few thousand miles on it. No troubles.

 

[threewood]

 

[davek]

couple thousand miles on it , that sad.

 

[Kern Dog]

My Lunati looked like that after a few thousand miles. I pulled it in 2014 to run a smaller cam....that lost lobes in 2022. I put the Lunati back in and it runs fine.

For having a cam so wild, the engine runs as smooth as ever.

 

[threewood]

In any event, I'm sending out those used lifters to get reground so I have something for the next cam swap down the road. That's the only reason I was looking at them.

 

[68-500]

Can I ask what where your spring pressures?

 

[threewood]

Can I ask what where your spring pressures?

Hughes springs #1128. I used the same springs for the new cam. I'm hoping that the rate will be a little less than when they were new. Both cams were broken in without the inner springs.