For the 'puzzle' build (a bought a partially rebuilt engine, think short block), I'm concerned about putting in my new MMI lifter with the existing cam. I know in auto-mobile space the cam and lifters are replaced at the same time since the develop a wear pattern.
When disassembling the engine, i pulled the lifters in sequence and labeled them, but this was an engine that reassembled by a non A4 expert. Eg. piston arrows were point to the flywheel, half the connecting rods were correctly oriented toward the camshaft. So while I pulled them in order, I'm sure the previous owner did.
What is the risk of flattening the lobe an existing cam with new lifters? Should I add the compcams break-in additive?
Other wisdom or thoughts? If I could buy a new cam, this would be a no-brainer.
When disassembling the engine, i pulled the lifters in sequence and labeled them, but this was an engine that reassembled by a non A4 expert. Eg. piston arrows were point to the flywheel, half the connecting rods were correctly oriented toward the camshaft. So while I pulled them in order, I'm sure the previous owner did.
What is the risk of flattening the lobe an existing cam with new lifters? Should I add the compcams break-in additive?
Other wisdom or thoughts? If I could buy a new cam, this would be a no-brainer.
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