Pushrod Adjustment
#1
Pushrod Adjustment
Ok guys, I am trying to figure out what I'm doing wrong with adjusting pushrods and need some advice. I'm working on a 2007 Heritage with SE 255 Cams. I found TDC on the rear and went to zero lash and gave it two and a half turns like the instructions said (Screamin Eagle Quick Installs) let them bleed down until i could spin them and i repeated the steps for the front. When i turn the bike on there is a clicking noise like they aren't adjusted right. Any insight on this would be helpful.
#2
Join Date: Jan 2011
Location: Southeast Michigan 15 Minutes East Of Hell
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#3
#5
I can try that tonight but why would the instructions say 2.5? Also i took a set of stock perfect fits that came out of a different bike and measured it and marked it so it would be close. shouldnt stock pushrods work on 255?
#6
SE made different tpi pushrods, most commonly 24. Count to confirm, they have pitch gauges to do that. If 24 tpi preload the lifters 3 1/2 turns from zero lash. If 32 tpi set preload to 4 1/2 turns.
I know the moco says 2 1/2 turns but that's for a stock cam. When you go to a higher lift and a more aggressive ramp cam, they will be a lot noisier making it necessary to load the lifters a little more to quiet things down...
I know the moco says 2 1/2 turns but that's for a stock cam. When you go to a higher lift and a more aggressive ramp cam, they will be a lot noisier making it necessary to load the lifters a little more to quiet things down...
#7
SE made different tpi pushrods, most commonly 24. Count to confirm, they have pitch gauges to do that. If 24 tpi preload the lifters 3 1/2 turns from zero lash. If 32 tpi set preload to 4 1/2 turns.
I know the moco says 2 1/2 turns but that's for a stock cam. When you go to a higher lift and a more aggressive ramp cam, they will be a lot noisier making it necessary to load the lifters a little more to quiet things down...
I know the moco says 2 1/2 turns but that's for a stock cam. When you go to a higher lift and a more aggressive ramp cam, they will be a lot noisier making it necessary to load the lifters a little more to quiet things down...
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#8
SE Quick Install pushrods are 24TPI; 3.5 turns will set preload at about .145". Piston should be at TDC on the compression stroke. The lifters will rattle for a minute or so but should go quiet pretty quick. Ride the bike, get everything up to operating temps and if valve train is noisy, look elsewhere.
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bedelman10 (03-28-2017)
#9
SE Quick Install pushrods are 24TPI; 3.5 turns will set preload at about .145". Piston should be at TDC on the compression stroke. The lifters will rattle for a minute or so but should go quiet pretty quick. Ride the bike, get everything up to operating temps and if valve train is noisy, look elsewhere.
#10
We have loaded a .200" travel lifter to .140-.150" here for almost a dozen years now.
Scott
Scott
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HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
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HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.