[charlie66]

I have a solid roller cam with a exhaust lobe on #4 cylinder starting to wear on the down side of the ramp. The seat pressure is @ 255 and 600 open . The lobe with the problem has a .556 lift .242 @ 0.050 duration. Is there a way to tell if its a defect or something that is wrong in the setup making a problem?
I tried taking pictures but cant seem to get any real good ones. The wearing area is starting to track a groove the width of the roller as well as having pitting present . The lifters are Crower hipo oilers.. The roller feels perfect. no sticky points or rough areas. To me it seems like it might have been a bad lobe from the start waiting to happen, but wanted to see what others thought first before I called the vender I bought it from... The card says to lash @ .026 which I am always on top of. One thing that seems not good to me is the push rods all seem to be flexing . More on the exhaust then the intake. These are .119 side wall thick.. When I first put the cam in the car #1 intake lobe did the same thing. I sent it back and it was fixed. The fixed lobe is still ok today... This cam shaft is use in a street car with a 1000 miles on it. This motor is also boosted and a 4 cylinder...

Oh... the 2 pictures of the push rods are the intake and exhaust from #4 cylinder...


any opinions would be really appreciated....

Thank you...