Lifter failure
Occasionally you get lucky.
Normally if the lifter isn’t rotating, it’s basically guaranteed the cam will fail.
But, I have seen lifters/lobes survive without rotation in two different engines.
Not engines I put together, but engines that were here for some upgrades and it was discovered during disassembly.
This came out of a 360…….. and there were a few like this.
Doesn’t look like it was ever properly turning.
The cam had less than 1/2 a thou of lobe taper.
With the new SFT that replaced the HFT, all the lifters were showing good rotation prior to final assembly.
Occasionally you get lucky.
Normally if the lifter isn’t rotating, it’s basically guaranteed the cam will fail.
But, I have seen lifters/lobes survive without rotation in two different engines.
Not engines I put together, but engines that were here for some upgrades and it was discovered during disassembly.
This came out of a 360…….. and there were a few like this.
Doesn’t look like it was ever properly turning.
The cam had less than 1/2 a thou of lobe taper.
With the new SFT that replaced the HFT, all the lifters were showing good rotation prior to final assembly.