Re: Bendix Treadle Vac Study- Serioius Business!!

Posted by Craig Hendrickson On 2011/6/7 12:42:39

Dave, thanks for the correction/updated information.

However, the gross effect is the same: without enough zinc in the oil, the chance of a new flat tappet failing is much greater. With ZDPplus (there are probably other zinc additive products) the problem seems to be eliminated. I get my information about the failure and solution from Pontiac high performance engine builders who sell thousands of hydraulic flat tappet cams & lifters.

Craig