Well, I decided to adjust my lifters today because the valvetrain was starting to get louder and power was off by the seat of my pants. I got to #4 exhaust and bumped it to put the lobe base on the rocker. As I looked closely I realized that the backside of the lobe was heavily wiped. It is/was a Crane cam with 272 lift. It sucks because I only needed the car running until after ZCON2011.

I now have to make a decision. I can swap the hotter L28 out of my 280Z track car because it isn't street legal or being driven right now or I can swap out the worn camshaft with either a 'A' or 'B' cam I have in the garage or pull the camshaft out of the 280Z (specs unknown). If I choose the easier path of a simple cam swap which cam would you go with.

After ZCON2011 I will be parking the 240Z for a teardown and restore. It will be receiving my new SC'd L28 stroker and WC T5 so whatever I do is just to get me through this July.

Very common problem with "certain" cams.

Send your stock Nissan cam to Delta Cam in Washington state for a regrind. The do a basic regrind for $75 bucks and rocker arm resurface for $3.75 each. I sent them two cams and 36 rockers and they did them for $3/ rocker and $55 per cam! Fantastic fast service, turned them around in about 4 days. Highly recommended.

search for oil additives and recommendations and cam wear problems. Been discussed many times.

Edited June 1, 201113 yr by zKars