Early Evo engine noise
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Tourer
Joined: Nov 2011
Posts: 309
Likes: 78
From: AZ
Early Evo engine noise
The engine is a remmanufactured HD engine from 2003, 75K miles. I have a noise sounding from the engine. Took it by an indy who thought it was the cam bearing. I replaced the bearing which was dead, cam bearing surface was 50% chewed up. New torrington bearing and EV27 cam. Lifters appeared good. The old cam lobes looked good, contact didn't indicate anything. Measured the cam with caliper, didn't have the .105/.108 gauge pins. Cam gear was the same. Started the engine and still have the noise, sounding like a bearing failing whine/buzz. Most of the noise is on the front cylinder through the case to the left side. Used a mechanic stetchsoscope and found most noise on the front lifter block and front cylinder. The rear had less noise. Could I have a bad lifter bearing or maybe the front rod bearing with noise transfering to the piston, cylinder, case. The noise lessens as I listen to the lower case. Most noise on the right side of the engine. I'm not sure what to look at now. Any suggestions?
Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
Likes: 19,811
From: Centennial, CO
Thanks for reporting your findings!
For future reference, you may get more engine specific help in the EVO section. Not trying to push you out of the Softail area, just letting you know those guys know their stuff over there about EVOs.
For future reference, you may get more engine specific help in the EVO section. Not trying to push you out of the Softail area, just letting you know those guys know their stuff over there about EVOs.
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