Keith McCullar
November 21, 2012
Crate Motor
November 20, 2012
An absolute worst enemy to a 604 crate engine owner is the rule you have to run such a low pressure valve spring. With that being said its a MUST to check the valvetrain on these motors EVERY race. Always pull the valve covers off to make sure that there are no valve spring cups, valve springs, retainers, or keepers broke or damaged because these are the weak link in these motors. One quick and easy way to make sure nothing as changed drastically, is to get eye level with all the valve springs and make sure none look higher than each other when there fully closed. Routine maintenance will win you more races than anything.
MSD Polarity
November 20, 2012
The question always comes up "Which way do i hook up my MSD dist. to my MSD box?" If the ends have never been changed then you cant mess up because the connectors are indexed. But in the case where the ends have been changed, this is the correct way and sure fire way of knowing how it hooks up. Always the orange striped wire coming from the dist. is the + polarity. The violet wire on the box is the positive polarity, make sure these two colors are together.
Another tip, to keep the connectors together in a harsh enviroment such as a dirt track or even a drag car, we suggest zip tieing in between the wires and around like shown in the picture above.
Distributor Cap Maintenance
November 20, 2012
Periodic checks of the carbon button in the dist. cap will keep your ignition firing properly. Over time the carbon will erode-causing arcing and loss of voltage. Also check the top metal strap on the rotter button to insure its in contact with the carbon button.
