push rods - cut to length, need intsruction |
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push rods - cut to length, need intsruction |
qa1142 |
Dec 10 2005, 04:05 PM
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#1
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Whiplash Group: Members Posts: 1,514 Joined: 1-June 04 From: Lake Zurich, Illinois Member No.: 2,140 |
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) |
URY914 |
Dec 11 2005, 08:43 AM
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#2
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I built the lightest 914 in the history of mankind. Group: Members Posts: 121,017 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
As Dr. Hunt said, it is a SLOW process. You have to set up the dial indicator (d/a) on the engine or on a bracket or jig as in the pic above. I did mine while the engine sat on the floor and the d/a was positioned on some scrap iron clamped to the head. The d/a must be very secure and not move AT ALL. You'll need an adjustable pushrod.
I did mine a few months ago while taking to Jake on the phone at 11:00 pm. (How many other suppliers/vendors would do this?) As you rotate the engine by turning the crank by hand you are trying to watch the d/a to get a measurement on the amount of lift. Jake should beable to give you a ball park lift measurement to start with. Than you will lenghten or shorten the adjustable p/r to increase of decrease the lift. It took me several nights of this before I really got the hang of the process and was able to work it out. You will be taking the shaft and rockers off and on 30 times before you get it done. As Jake said, it is hard to discribe. Once you start in on it you'll come to realize how the process works. I wish these was a step by step method written somewhere but there doesn't seem to be a good one out there. Paul |
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