| stephen miller | -- 06-08-2013 @ 12:08 PM |
|
i have a left and right johnson tappet adjusting tools. having trouble using them. engine is assembled and has johnson tappets and using mushroom valves. appreciate infor. stephen thanks for help
|
|
| TomO | -- 06-21-2013 @ 2:29 PM |
|
Stephen, The adjusting tools are difficult to use, so most rebuilders drill the lifter boss so you can use a drift to hold the lifter steady while adjusting it. The tool tang goes in the lifter that is being adjusted and the round slot goes to the adjacent lifter. You must hold the tool down in the lifter that is being adjusted. If you have a performance cam, I would remove the valves and lifter and drill the bosses. Use a magnet to catch the filings. The lifter will be too far down in the boss to use the tool effectively. Tom
|
|
| oldford2 | -- 06-21-2013 @ 6:35 PM |
|
Those wrenches are buggers. As mentioned the bores should have been drilled. But you have a couple of options. Get the lifter down on the bottom and measure the clearance. Then raise the lifter up to it's maximum lift. Now the wrenches are slightly easier to hold the lifter while you adjust it. You will quickly learn how much a quarter turn on the screw will move the lifter in or out (maybe .003-.005?). Make the adjustment and lower and check clearance again. Next and best option is to measure the clearance to determine the change required. Then remove the horseshoe clip so the whole valve assembly can be removed. Then remove the lifter, put it in a vice with copper jaws and mic the overall length. Then a little math will tell you what the overall dimension should be to give you the proper clearance. Easy. John ps. Leave the intake guide O'rings off till final assembly. This message was edited by oldford2 on 6-21-13 @ 7:09 PM
|
|
| EFV-8 Club Forum : | https://www.earlyfordv8.org/forum |
| Topic: | https://www.earlyfordv8.org/forum/viewmessages.cfm?Forum=18&Topic=6144 |