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REPLACE PUSHRODS BROKE ONE PUSHROD

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Posted on Jan 02, 2017

OneRide
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SOURCE: 95 Harley FXSTC Pushrod replacement

A little something to add to the above solution...be advised that there are TWO kinds of aftermarket pushrods for Harleys. Adjustable and easy install. Adjustable pushrods you have to break the cylinder heads loose to install them. The easy install type slips right in with no extra work. Make sure the ones you get can be installed without removing the cylinder heads.

Posted on Jun 26, 2009

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SOURCE: I can't tell the difference between the exhaust

exhaust valve and pushrod should be darker , pushrod due to heat , and the valve due to heat and carbon

Posted on Apr 25, 2010

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I have a 2000 Road King 88 inch Twin Cam. It has T-7011 V-Thunder adjustable pushrods. I am putting in new stock Harley lifters. How do I adjust the pushrods. How many turns from zero lash?


Stock lifters often allow valve noise. Consider velvet touch or Jims' lifters AND lifter blocks. Adjustable push rods are okay.
Adjustment: I prefer TOTALLY dry lifters get the lifter at its lowest point and FULLY collapse the lifter. then turn looser by 1 to 2 1/2 turns. What this does is allow for a loss of oil pressure without engine destruction. This procedure is essentially the opposite of the normal procedure.
Many HDs have intermittent valve tapping and we have traced to the lifters. HD says "It's a Harley", but a valve tap ruins the whole ride.

Jun 10, 2011 | Harley Davidson FLHR-FLHRI Road king...

1 Answer

How do i adjust my rockers on the rear jug took apart 2 fix base gaskets on rear jug


If your bike is equipped with the Evolution engine there is no adjustment on the rocker arms, the engine is equipped with hydraulic tappets. The pushrods on the Big Twin Evo engine are color coded and go in a particular position. They are different lengths. The blue color coded pushrod is the rear intake pushrod, the purple color coded pushrod is the exhaust pushrod. The pushrods for the Evo Sportster are all the same and there is no adjustment on those eiher provided they are stock.

Now, if you are working on something other than an Evolution engine or you have aftermarket pushrods, please repost and I'll tell you what I know about the valve adjustment for your engine.

Steve

Mar 26, 2011 | Harley Davidson FXST - FXSTI Softail...

1 Answer

What is the adjustment for the pushrods screaming eagle


When you adjust the pushrods on any H-D Evolution or later engine, you must compress the tappet by 0.100". According to the list that I have, you must turn the pushrod three complete turns (18 flats) to lengthen it this much. I'd double check your pushrods to make sure this is correct. Find a point where you can measure the pushrod and take a measurement using a dial caliper. Turn the pushrod to extend it by three full turns and remeasure the pushrod. It should be 0.100" longer.

To install your pushrods, bring one piston to top dead center on the compression stroke. Make sure that both tappets on that cylinder are as low as they go in their bores. Install the pushrod with the pushrod tube into the head. Make sure you've got the O-rings in the head and the tappet block. Extend the pushrod by turning it with your fingers until it gets tight. Then, turn it three more turns using wrenches and lock the locknut. Do the same with the other pushrod. Let the engine sit and do not turn the engine until the tappets bleed down and you can again turn the pushrods with your fingers. This may take as long as ten minutes. Once you can turn the pushrods by hand. Bring the other cylinder to top dead center on the compression stroke. Make sure that both tappets are at the low point in their bore. Install the other two pushrods the same as you did the first two and allow the engine to set until the tappets bleed down. Once you can spin the pushrods in your fingers. Finish installing the pushrod tubes.

Now, this is accurate provided your pushrods have a 32 threads per inch adjuster. If not, you must figure out how many "flats" that you have to turn the pushrod to lengthen it by 0.100". Substitute this number of flats in for the number of turns to lengthen the pushrod after you get it finger tight.

The tappet plunger has approx. 0.200" of travel in it. You want to adjust the pushrod so that the plunger in the tappet is about mid way in it's travel or 0.100" or there abouts.

Good Luck
Steve

Mar 14, 2011 | Harley Davidson FLSTC - FLSTCI Heritage...

1 Answer

Need first steps to adjusting push rods didnt mark the pushrods as we removed them the bike is 80 cubic inch electra glide 1994


Uhh, if the pushrods in your 1994 model bike were stock, they are not adjustable. They should be color coded at to where they go. If this is what you have, they go in the following positions:
Purple - Rear Exhaust
Blue - Rear Intake
Yellow - Front Intake
Green - Front exhaust

Now, if they have been changed to adjustable push rods by you or some previous owner, the first thing you have to do is figure out how many turns of the adjuster it takes to make the pushrod 0.100" longer. Turn the adjuster all the way inward making the pushrod as short as possible. Now, using a caliper, turn the adjuster outwards until you get a measurement of threaded rod that is exactly one hundred thousandts long. Then turn the adjust all the way back inward while counting the number of "flats" on the hex adjuster that you turn until it bottoms out. You must do it this way because different manufacturers of the pushrods use different thread pitches on their adjusters.

Once you know how many "flats" it takes to make the pushrods 0.100" longer install the pushrod into a position with the tappet all the way down. Adjust the pushrod out using your fingers until you get all the slack out of the pushrod. Then turn the pushrod adjuster outwards the number of turns that it takes to make the pushrod exactly 0.100" longer.

Once this is done, you will not be able to turn the pushrod. You must wait for the hydraulic tappet to bleed down before you can turn the engine. If you do turn the engine before the tappet bleeds down, you may bend the valve. Do not turn the engine until you can turn the pushrod with your fingers. Proceed until you get all pushrods installed and adjusted in this manner.

Ride Safe,
Steve

Jan 17, 2011 | Harley Davidson FLHT Electra Glide...

1 Answer

How do i install s&s quicky push rods into 80 evo


To begin with, I assume you already have the old pushrods out. If you plan on cutting the old ones out, cut them with a pair of bolt cutters, not a "zizz wheel". The metal shavings and wheel grit gets into the engine unless you are very careful.

Now, most S&S pushrods are threaded 32 threads per inch. So, Check yours and make sure they are threaded this way. Adjust the pushrod as short as it will go. Then turn the adjuster out three full turns and measure the disance it lengthens the pushrod. It should be right at 0.100 inch. If this is correct proceed.

Bring one piston to top dead center on the compression stroke. This will be when the piston it at top dead center but both of the tappets are down in their bores. Insert the pushrod in the tube and make sure you have all the various O-rings for the tube in the tappet block and the head. Insert the pushrod into position and using your fingers extend the adjuster until the pushrod is tight against the tappet, zero lash. Then, turn the adjuster out an additional three full turns, 18 flats. Lock the lock nut down and do the same thing with the other pushrod. Do not turn the engine over until the tappets bleed down and you can turn both pushrods with your fingers.

Once you can turn both pushrods with your fingers, do the same thing with the remaining cylinder. Theory is the hydraulic tappet has approximately 0.200" travel in it. You want to adjust the pushrod so that the plunger is about halfway in the travel of the tappet.

You can also get this information on S&S's site. Go to their site, click on Technical section, click on installation instructions. The have the installation instruction for all their products online.

Good luck
Steve

Jul 10, 2010 | 1993 Harley Davidson FXR Super Glide

1 Answer

Looking for instructions to adjust valves on 1987 H.D.


If the engine is stock, there is no adjustment to the valves. The engine is equipped with hydraulic tappets that take up for any wear or heat expansion of the cylinders. The pushrods are non-adjustable but are of different lengths. They are color-coded as to what position they go in.

Now, if your engine has been modified and adjustable pushrods installed, they should work the same way unless they are way out of adjustment. Then, it depends on "whose" pushrods they are as not all pushrods have the same threaded ends on them. But, all is not lost.

Take one of the pushrods out of the engine and adjust the pushrod as short as it will go. Now, turn the end out until it makes the pushrod exactly 0.100" longer while counting the "flats" on the adjuster. When you install the pushrod, make sure the tappet is at it's lowest point in the bore. Put the pushrod in, don't forget the tube and the new O-rings, and adjust the pushrod out until you have zero backlash. Then adjust it out the additional number of "flats" that it took to make it exactly 0.100" longer. Lock the adjuster down. What you're doing here is the plunger of the tappet has a travel of 0.200" total and you're adjusting the pushrod so that the plunger is halfway in the middle of its travel so that it's got equal travel in both the up and down direction.

Good Luck

Jun 02, 2010 | 2003 Harley Davidson FLHTC Electra Glide...

1 Answer

How do i adjust screaming eagle pushrods


I think the SE pushrods have a 32 TPI pitch on the threads. If so, with the tappet all the way down in it's bore, adjust the pushrod longer until it make contact with the tappet plunger. Now, continue to lengthen the pushrod by 18 flats or three turns. Allow the tappet to bleed down before you turn the engine over. When you can turn the pushrod with your fingers, you can safely turn the engine.

The object is to adjust the plunger in the hydraulic tappet to approximately the middle of it's travel. The tappest have about 0.200" of travel. So, you want to adjust the pushrod out until it has zero clearance then go another 0.100" inch. You can measure how much three turns lenghtens the pushrod before you install them just to make sure.

Good Luck
Steve

Jun 02, 2010 | 1993 Harley Davidson FXR Super Glide

1 Answer

I have a 1965 Ford 289 which I want to upgrade to a roller tip rocker arm. I ordered from Speedway Motors part #575-83201. I also ordered new pushrods and was sent part #915-14100. The new pushrods are...


You may be able to use them,there should be enough adjustment to make them work.FordMotorsports and Crane make a pushrod that is 8.640 which is what I used with those rockers.To check fit install 1 pushrod and 1 rocker on #1 cyl turn the engine over by hand 2 revolutions and then check and make sure the rocker tip is dead center on the valve,if it is you're good to go.

Aug 01, 2009 | 1965 Ford Mustang

1 Answer

How do I adjust the pushrods in my 72 sportster


first off remove all the pushrod covers. Then starting with any of them turn the motor over till one of the pushrods is all the way up. Then loosen the nuts at the bottom and turn the adjusting nut on it till you can just barely spin the pushrods with your fingers. Retighten the pushrod nuts. Recheck to make sure you can still turn it. Take your time doing it. and then replace the covers.

Jul 11, 2009 | Harley Davidson XLS 1000 Motorcycles

2 Answers

95 Harley FXSTC Pushrod replacement


As long as they are adjustable it's not too bad. Remember to change pushrods one at a time. First you have to pull the upper chrome covers off. These have a little (kind of) handle. They are halfed, but they look one piece. Pull down & out. 1: Once chrome covers are off, turn motor slightly until the valve your working on is closed & lifter is on lowest part of base circle on cam at BTC. in other words, while turning motor slightly in BOTH directions, lifter should be all the way down, and stay down. this assures that your not on or near the up ramp of the cam lobe. 2: Then you can remove pushrod by loosening lash adjustment (on bottom) until pushrod comes out. 3: Put new pushrod through partial chrome tube exactly as removed from old pushrod. 4: Set valve lash or pre-load, and then, one at a time, repeat procedure from step 1.

May 30, 2009 | 1993 Harley Davidson FXR Super Glide

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