noisy rocker arms
Harley Twin CamDiscuss noisy rocker arms in the Motorcycles forums; 100,000 is just a personnel goal. The tensioners were replaced at 65,000 miles. they did the camplate as well as new 203 cams. for new lifters now I think the ...
100,000 is just a personnel goal. The tensioners were replaced at 65,000 miles. they did the camplate as well as new 203 cams. for new lifters now I think the shop's quote was using solid pushrods. And mine definitely gets more quite after oil gets warmed up. The shop did tell me motor won't self-destruct with bad lifters...just run bad as valves don't open enuff. and will get really noisy and won't go away. You guys agree??
Well if they replaced the tensioners, and replaced the cam then they probably replaced the lifters as well and would think use adjustable push rods.
If I was you I would check and see what they did, if they used adjustable push rods then they probably need adjusting.
Have you checked your oil pressure? A miss alighted oil pump can cause low pressure and on start up keep lifters from pumping up.
As for blowing up the motor, lifter clatter usually is just that but it can be a major problem also.
If they are pumping up as the oil gets warmer, this sounds like the push rods need adjusting to me.
When did this noise apear?
Quote:
Originally Posted by jonlyjayman
100,000 is just a personnel goal. The tensioners were replaced at 65,000 miles. they did the camplate as well as new 203 cams. for new lifters now I think the shop's quote was using solid pushrods. And mine definitely gets more quite after oil gets warmed up. The shop did tell me motor won't self-destruct with bad lifters...just run bad as valves don't open enuff. and will get really noisy and won't go away. You guys agree??
Location: Michigan in the summer,Florida in the winter
Posts: 39
Re: noisy rocker arms
Speaking of lifters,I installed adjustable pushrods a couple of years ago,now it's time for new lifters.I lost the destructions on how to adjust the p-rods,anyone out there know the procedure??I do believe that my brain cells are deserting me just when I need them the most!!
Steve,
If you have an 88 in Twin Cam, the Screaming Eagle pushrods should be LENGTHENED from the zero clearance starting position TWO and ONE HALF turns. Then you gotta wait long enough for the lifters to bleed down before you crank it. (10 minutes)
Personally, I can't get the tubes back in place in ten minutes. So I doubt that you will be starting the engine too soon after adjusting the pushrods.
This is from the instruction sheet that came with my SE pushrods.
The senior members or some of the other outstanding wrenches that read this forum can either agree or call BS on me.
And as for jonlyjayman's question, the shop labor would have been higher for using the solid pushrods because they would have to take the tank off and open up the rocker boxes on top to get everything right. With the adjustable pushrods, you can simply cut the OE pushrods out and reinstall the new ones with out having to open the topend.
Harley Cruiser (Steve) is right. Check with your receipt or with the shop records to see exactly what they did.
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Coot & Nelly Bell
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IF,,,,,,,,,,,,,you have the SE pushrods, you will begin the process with the lifter at the bottom of its travel. In other word, on the low part of the cam and the piston at or near TDC with valve closed.
If you don't have SE pushrods, then it will still probably be close to 2.5 turns. I think that maybe another member can chime in here. Maybe one that is a professional wrench. It seems like I remember hearing that the actual spec is about .0100 (one hundred thousandths). Then you can tickle them if needed by an eighth, or quarter, or half turn to hush them up.
Hopefully, a REAL LIVE Harley wrench will chime in here and either confirm my memory or blow it out of the water.
__________________
Coot & Nelly Bell
"If you don't stand for something,
you don't stand for nothing." unknown