2007 Fat Boy engine knock
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2007 Fat Boy engine knock
I have read about others having problems with heat problems and surging on the '07 96 cu. in. engines. Mine has been in the shop twice now for an engine knock. The first time it sounded like the front cylinder wrist pin. The dealer said HD told them to change out the ECM. Well, that didn't help and it is in the shop now for the second time. They are waiting for HD to decide what is wrong. Anyone else having this problem? I have always run premium gas with less than 10% ethanol. The bike only has 880 miles on it.
June-13-07
New update- The dealer and HD MoCo have decided to change the cams out. Both of them. We will se if this makes a difference.
June-13-07
New update- The dealer and HD MoCo have decided to change the cams out. Both of them. We will se if this makes a difference.
Road Captain
Joined: May 2007
Posts: 624
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From: northern Minnesota
RE: 2007 Fat Boy engine knock
I have an 04 EGC that seems to have a knock at idle when hot and it seems to be on the right side of the engine, what could this be ? it also seems to disappear above idle.
Outstanding HDF Member
Joined: Jul 2006
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RE: 2007 Fat Boy engine knock
Latus had an engine knock awhile ago that SERT tuning couldnt remove.Hd quickly took that engine off his hands before he coulddig into any further.Was told it was defective engine cases.Usually if there is one,others have also snuck thru the watchful eye of HD.
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RE: 2007 Fat Boy engine knock
The hottest the weather was 80* F. I was on a ride of about 60 miles and the engine started knocking when you let off of the throttle. The engine idles fine and does not knock unless you rev it up. When you are going through the gears and let off the throttle it will knock badly.
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RE: 2007 Fat Boy engine knock
Mine sounds good at warm up and at idle. It only knocks when you let off of the throttle after acceleration or say in between gears you can let off and hold it steady and it sounds like the front rod is going to come out. It sounds like a wrist pin. It is way too lound for a lifter noise. Let me put it this way- My wife was on the left side of me listening through the passenger window in my truck and could hear it. She was driving the truck.She is not mechanically inclined but can hear an unusual noise.
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RE: 2007 Fat Boy engine knock
I have talked to the dealership and they are working with techs at HD. Their next step is to change out both cams. Don't know if they will have it done by the time I go back to work. Overseas
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