News:

For advertising inquiries or help with registration or other issues, you may contact us by email at support @ harleytechtalk.com

Main Menu

Adjustable Pushrods

Started by busmechanic1, May 22, 2011, 07:04:04 PM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

busmechanic1

Are there any advantages using adjustable pushrods with stock hydraulic lifters over stock non-adjustable pushrods?

JBarrettB

I always use the OEM pushrods unless the cam I'm using requires that the pusheod lengths change. There is no advantage to using adjustables with a 'bolt in' cam. Quick install pushrods do allow you to install/remove them without pulling the rockers off but that is about it. 

JB
CAUTION: Comments may be sarcastic, clarification available upon request.

Hillside Motorcycle

Quote from: busmechanic1 on May 22, 2011, 07:04:04 PM
Are there any advantages using adjustable pushrods with stock hydraulic lifters over stock non-adjustable pushrods?

Not unless you've surfaced the heads, or did a cam swap.
Scott
Otto Knowbetter sez, "Even a fish wouldn't get caught if he kept his mouth shut"

BluHarley

If you'r just going to put it together, and leave it together, the stock are fine.  But, if you need to replace an o-ring, then you have to remove everything again.  After about 5 times, I finally stripped a bolt in the head for the rocker box.  So, quick install is the key to happiness, as far as I'm concerned!

Dan89flstc

#4
Everybody seems to think adjustable push rods are the way to go. I used to think so too, until one came loose on me... Luckily it only beat up the lifter before I shut it down. Happened once before that about 10 years ago.

I`m glad I didn`t cut the OEM pushrods, because they are back in the engine now after a 12 year vacation in the bottom of my toolbox. :pop:
US Navy Veteran 1974-1979 (AD2) A&P Mechanic
1989 FLSTC, 2019 FLHT, 2022 FLHTCUTG

BluHarley

I've had them loosen too, last time two of them loosened.  I pulled into a parking lot, got out my tool box, and made them good!

busmechanic1

No wild cam, just a evo27 .006 shaved off heads 9.5 to 1 pistons. Sounds like stockers are the way to go.

Norton Commando

No wild cam, just a evo27 .006 shaved off heads 9.5 to 1 pistons. Sounds like stockers are the way to go.

I agree.
Remember, you can sleep in your car, but you can't drive your house.

Wonderwoman

ANYTHING that adds weight to moving valvetrain isn't good (wears parts out faster), but the adjustables are so convienent when swapping cams, gears, etc.

The added weight is the adjuster and nuts in the pushrod, of course.

karlsbike

I was contemplating whether or not to reuse my stock pushrods or use my new adjustable ones for my S&S 96 in3 build - thinking that simpler & lighter is better. To make sure I sneaked into the kitchen, and compared them using a small (flour type) scale:
The adjustable were 10 grams lighter per pushrod (about .35 ounce). Not a lot, but lighter is indeed better. In addition, the adjustable have larger radius tubes meaning they are less prone to flexing (not sure if that is even an issue, but anyway). Needless to say, the adjustables went into the motor...
All the best,
Karl '90 FLTC/FLHR - S&S 96

bobrk1

the only good thing is if you need a lifter you can change it easier,don't change them except when you need to do some work.