62 cam lobe wipe out

[Joe L.]

Re: 62 cam lobe wipe out

if you use a solid lifter roller cam make sure that the rollers are full pressure oil fed as regular roller lifter needles are just splash lubed and they do not like low RPMs. also use a rev kit to keep the rollers in place in the lifter bores if you happened to loose a pushrod,rocker arm or rocker stud.

clem------


The only type I would recommend or use for STREET operation is HYDRAULIC roller lifters----NEVER solid roller lifters.

[Clem Z.]

Re: 62 cam lobe wipe out

there should be no reason to go to a hyd roller cam in a low HP street engine with a hyd cam. there should be no break in problems with the proper cam,lifters and springs. remember with a roller cam you have to limit the end play of the cam and to do this you must use a reinforced timing gear cover as a stop. also you must use the proper dist drive gear to match the gear material on the cam. it is not a plug and play setup to go to a full roller set up and if the person doing the work does not do all the right things you will have problems just like with a flat tappet cam only more expensive to fix.

[Duke W.]

Re: 62 cam lobe wipe out

Here! Here! I have never heard of a Federal Mogul or Dana Corp. OE replacement cam with OE replacement valve springs ever wiping out a lobe, and that includes all the SHP cams.

Duke

[Joe L.]

Re: 62 cam lobe wipe out

there should be no reason to go to a hyd roller cam in a low HP street engine with a hyd cam. there should be no break in problems with the proper cam,lifters and springs. remember with a roller cam you have to limit the end play of the cam and to do this you must use a reinforced timing gear cover as a stop. also you must use the proper dist drive gear to match the gear material on the cam. it is not a plug and play setup to go to a full roller set up and if the person doing the work does not do all the right things you will have problems just like with a flat tappet cam only more expensive to fix.

clem-----


Yes, a retrofit roller cam installation is not as simple as just installing a flat tappet cam. However, a special distributor gear is not necessary with Federal-Mogul/Speed-Pro hydraulic roller cams which are manufactured from austempered ductile iron cores. Also, some of the other cam manufacturers now use a pressed-on ductile iron distributor/oil pump drive gear. Otherwise, one can use the melonized distributor drive gear (on the distributor) available from GM. I do not recommend the use of any bronze distributor drive gear for street applications.

It is necessary to use an internally reinforced timing cover in conjunction with a thrust button for retrofit hydraulic roller applications and setting the proper end clearance is important.