push rods - cut to length, need intsruction Options

[qa1142]

Ok so I searched and found a thead on rocker geometry (nice pdf too (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) )

So who can tell me (step by step) on how to cut Jake's rods to lenght (IMG:http://www.914world.com/bbs2/html/emoticons/av-943.gif)

Sorry had to put it that way (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)

[DNHunt]

I'm not sure I can give you the blow by blow but, here is what I did.

You need a dial indicator and some way to hold it on the head so you can read valve openning. You need and adjustable pushrod and probably light weight valve springs. You need a day uninterrupted.

There are 2 goals. As much valve lift as possible and the adjusting screw parallel to the valve stem at half lift. Of the 2 the second is more important. You use changes in pushrod length and addition and subtraction of shims under the rockers to achieve this.

I sort of bodged up a jig to hold the dial indicator and then I welded up a rectangle of angle iron to clamp it down. The tip of the dial indicator sits on the valve spring retainer. The lightweight springs I found at the harware store, nothing fancy.