When adjusted correctly, with any adjustable rods,,, after 20 or so minutes, you should be able to easily spin the pushrods with 2 fingers... the exceptions would be if 1 or more pushrods are under load being on the tip of a cam lobe.
Pushrod’s adjustment
Hey guys am I overthinking this—-
After adjusting the front pushrods following. The procedure of TDC/6th dear/ plugs out,,,letting bleed down before moving to rear cylinder.I am able to hand spin intake/exhaust with 21 flaps zero lash…
When I repeat this for the rear cylinder and waiting over night after final adjust I’m unable to hand spin the intake rod?is this normal.The bike had a test run and idles perfect no knock of rods .
After adjusting the front pushrods following. The procedure of TDC/6th dear/ plugs out,,,letting bleed down before moving to rear cylinder.I am able to hand spin intake/exhaust with 21 flaps zero lash…
When I repeat this for the rear cylinder and waiting over night after final adjust I’m unable to hand spin the intake rod?is this normal.The bike had a test run and idles perfect no knock of rods .
1 - 8 of 8 Posts
Ok it seams that this what’s happen.Is this a bad thing?im going to open it up again and recheck the 21 flats on the intake rod,When adjusted correctly, with any adjustable rods,,, after 20 or so minutes, you should be able to easily spin the pushrods with 2 fingers... the exceptions would be if 1 or more pushrods are under load being on the tip of a cam lobe.
Thanks
Is 21 flats the center point in the lifter, based on the threads per inch with your pushrods?
Most have 48 nut flats from bottom to top, or 8 full turns,, divided by 2 equals 4 full turns or 24 nut flats..
This adjustment is not critical. However, if you were to get I lifter on the heel of the cam, start with the pushrod lightly contacting the seat in the lifter, able to turn easily with 2 fingers... then extend the push rod 48 flats, and walk away for 20 minutes, then check if the pushrod will turn with 2 fingers,, if not, shorten the pushrod 1 flat at a time, until you feel the spring pressure relieved,, subtract the number of flats from 48, divide by 2,, this will be the #of flats for all the lifters...
Most have 48 nut flats from bottom to top, or 8 full turns,, divided by 2 equals 4 full turns or 24 nut flats..
This adjustment is not critical. However, if you were to get I lifter on the heel of the cam, start with the pushrod lightly contacting the seat in the lifter, able to turn easily with 2 fingers... then extend the push rod 48 flats, and walk away for 20 minutes, then check if the pushrod will turn with 2 fingers,, if not, shorten the pushrod 1 flat at a time, until you feel the spring pressure relieved,, subtract the number of flats from 48, divide by 2,, this will be the #of flats for all the lifters...
All good now after moving tire back and forth to see the up and down motion of pushrodsOk it seams that this what’s happen.Is this a bad thing?im going to open it up again and recheck the 21 flats on the intake rod,
Thanks
And waiting 1 hr I was able to turn rods by hand,
FYI, differant companies use differant thread pitch. So the flats or full turns do not equate to the same adjustment.Is 21 flats the center point in the lifter, based on the threads per inch with your pushrods?
Most have 48 nut flats from bottom to top, or 8 full turns,, divided by 2 equals 4 full turns or 24 nut flats..
This adjustment is not critical. However, if you were to get I lifter on the heel of the cam, start with the pushrod lightly contacting the seat in the lifter, able to turn easily with 2 fingers... then extend the push rod 48 flats, and walk away for 20 minutes, then check if the pushrod will turn with 2 fingers,, if not, shorten the pushrod 1 flat at a time, until you feel the spring pressure relieved,, subtract the number of flats from 48, divide by 2,, this will be the #of flats for all the lifters...
Thanks for your reply ::: ive check my receipt and I have s&spushrods so I went 24 flats.FYI, differant companies use differant thread pitch. So the flats or full turns do not equate to the same adjustment.
1 - 8 of 8 Posts
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