IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: larrym on December 01 2014, 06:13:44 PM

Title: roller cam
Post by: larrym on December 01 2014, 06:13:44 PM

So I have a short block  I am getting ready to put finish up and put in my car.
I had planned to reuse my existing roller cam and lifters should I be concerned about where the roller tracks on the lobe?
With the used cam  and roller lifters in a different block could I run into issues?
I like the cam is it a better idea to start with a fresh cam?

Title: Re: roller cam
Post by: earlbrown on December 01 2014, 07:41:23 PM

If you can't feel any wear with your fingernails, I can't imagine it'd be an issue.

Title: Re: roller cam
Post by: Steve Wood on December 01 2014, 07:57:03 PM

agree with Earl

Title: Re: roller cam
Post by: Scoobum on December 01 2014, 08:28:12 PM

What's a roller cam? :)

Title: Re: roller cam
Post by: larrym on December 01 2014, 09:30:29 PM

Thanks gents i will put my good glasses on and give it a through inspection once its out

Title: Re: roller cam
Post by: larrym on December 02 2014, 01:18:21 PM

I know I know it just piece of mind for me Brad.

Title: Re: roller cam
Post by: Scoobum on December 02 2014, 04:28:21 PM

Quote from: larrym on December 02 2014, 01:18:21 PM

I know I know it just piece of mind for me Brad.

Roller cams...are the smart play. I would never recommend running a flat tappet cam to anyone.

Title: roller cam
Post by: larrym on December 02 2014, 07:27:34 PM

I would because I'm Scottish but I'm also a coward

Title: Re: roller cam
Post by: Top Speed on December 02 2014, 08:06:04 PM

As long as the stars are in alignment, a flat tappet cam is not too bad. :)

Title: Re: roller cam
Post by: Steve Wood on December 03 2014, 09:26:50 AM

For most, flat tappet cam failures can be broken down into cheap chinese lifters that are not hardened properly or improper install/break in.  I suspect using the "wrong" oil or not using some magic additive is very seldom the problem in the average street car with mild valve springs.

Buy Johnson lifters which are properly made and the potential for failure should be greatly diminished.

Title: Re: roller cam
Post by: motorhead on January 23 2015, 01:11:37 PM

https://www.youtube.com/watch?v=LPW61HKzw5U (https://www.youtube.com/watch?v=LPW61HKzw5U)

This is why you always buy the best cam you can; budget parts are sketchy.