KSE Tandem X pump

[shadowj38]

A perfect example of why you don't overlook the simple stuff.

[fastford]

dont feel alone, this problem has bitten a lot of people including me.....

[MLR19]

We had another freak thing with a KSE pump last week. The set screws that hold the pulley on the pump backed out, & the key worked its way out. The pulley was slipping on the shaft & only driving the pump under a light load, had 7 psi idling & zero at the end of the straightaway . Unfortunately by the time we found the problem it cost us at least 1 piston. Another thing to add to the checklist when bolt checking.

[shadowj38]

It's amazing the things that work loose on a race car!