Engine noise...EVO
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3rd Gear
Joined: Feb 2007
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Engine noise...EVO
Just finished my winter upgrades...SE heads and HQ024 cam, rehoned cylinders w/new rings....got about 75 miles on it now breaking the rings in. When the bike is warmed up there is a whine; I know this must be the cam, didnt swap gears just left gear that came on it. My concern is Im also hearing a chugging noise ( not sure if its intake or just valve train )at certain rpm levels. Im not sure if this is cam related. Has anyone ever experenced this or tell me where to start looking
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3rd Gear
Joined: Feb 2007
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RE: Engine noise...EVO
Bike is a 97 FLSTS....installed new cam but didnt swap cam gear. The cam whin is very noticable and the chugging , I cant tell where its coming from. Its occuring after the bike has warmed up and at certain rpms.....I also changed heads to a set of new SE. I hope its not a head gasket
Stellar HDF Member
Joined: Feb 2007
Posts: 2,558
Likes: 280
From: Russellville, Arkansas
RE: Engine noise...EVO
The wine noise....sounds like the gear wine to me since that was not changed out. The old FXRT I use to own had the gear wine, I bought it new and it did not have the wine. After looking in my service log, that bike did no develop the wine until 67,000 miles. The wine did not pose a problem or a driveablity concern....it just stayed that way.
Could you possibly have an electrical wine? I have noticed that certain bikes develop a wine if a part of the charging system is failing or has failed. A failing stator can make a wine noise as well. I would just check the charging system and make sure it is working.
The chugging noise...check for any vacum leak and check the VOES.
Lastly, does the wine go away when the clutch is engaged or disengaged?
Could you possibly have an electrical wine? I have noticed that certain bikes develop a wine if a part of the charging system is failing or has failed. A failing stator can make a wine noise as well. I would just check the charging system and make sure it is working.
The chugging noise...check for any vacum leak and check the VOES.
Lastly, does the wine go away when the clutch is engaged or disengaged?
Tourer
Joined: Mar 2006
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RE: Engine noise...EVO
Did you make sure the end play on the cam was within spec? You didn't mention weather or not you replaced the cam shaft bearings or installed new roller lifters.
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Cruiser
Joined: Sep 2006
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RE: Engine noise...EVO
My 87 FXR had a whine from the day I got it and ran strong the day I sold it with 53,000 miles. A stator is the only mechanical failure I experienceds. The whining noise bothered me for the longest time so I had two dealers look at it, change cam gears and don't recall what else they tried.The bike certainlywhined but betteryet - it really"screamed."
I greatly regret ever trading it in on a 97 FXDWG. It was the best of the seven HDs I have owned.
I greatly regret ever trading it in on a 97 FXDWG. It was the best of the seven HDs I have owned.
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Elite HDF Member
Joined: Oct 2005
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From: Canton, Michigan
RE: Engine noise...EVO
Can't help much, but my 93 EVO developed a 'whirling' noise after it's last (and final) visit to the 'expert' shop that worked on it. They were only supposedto replace the cam cone gasket.
Bike never had that particular sound before, and I've owned it since new inApril 1993. Of course the shop owner said, "I don't hear anything."
Bike never had that particular sound before, and I've owned it since new inApril 1993. Of course the shop owner said, "I don't hear anything."
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