[1980 TA]

Thanks. That is what I thought.

Now on to a discovery I made tonight. When the lifter is down on the base circle, the lifter does not contact the plate and can spin in a full circle quite easily. I was curious if anyone else running the plate system had noticed this? My concern is what keeps the lifter from wanting to spin when it is at zero lift. I sure would like to see the lifter in contact with the plate at all times, not just under lift.

I've got a phone call in to Randy and will let everyone know what he says when I hear from him.

[grivera]

IIRC, In an earlier post the size of cam base circle was discussed and the range it would need to be in to avoid the oil band riding too high or too low. Can clarify if you’re using roller or flat tappet lifters?

[Tom Vaught]

Originally Posted by 1980 TA

Thanks. That is what I thought.

Now on to a discovery I made tonight. When the lifter is down on the base circle, the lifter does not contact the plate and can spin in a full circle quite easily. I was curious if anyone else running the plate system had noticed this? My concern is what keeps the lifter from wanting to spin when it is at zero lift. I sure would like to see the lifter in contact with the plate at all times, not just under lift.

I've got a phone call in to Randy and will let everyone know what he says when I hear from him.

A roller lifter spinning in the lifter bore, if I understand you correctly, would put a tremendous side load on the roller shaft and lifter ears supporting the roller if the roller was anywhere but true to the camshaft lobe travel.

Tom V.