rattle on acceleration
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Intermediate
Joined: Jan 2013
Posts: 25
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From: canada
rattle on acceleration
Got my 05 twin cam torn down looking for a loud rattling noise . I was suspecting the crank but when I removed the jugs and pistons there was no up or down play in the rods or no tightness in the rod bearings . I removed the outer timing chain and gears and checked the runout on the nose of the crank at the round section right behind the crank gear notch . The dial indicator shows just under .003" . Do I have to remove the cams and oil pump and check runout further in ,or should this be OK ?. The front piston was scuffed badly and seems to have a lot of piston to wall clearance . Just using a feeler gauge it has about .006" as near as I can tell . Would this cause the noise ? I have replaced lifters and gone through the valve train twice trying to cure this noise and installed rocker lockers .
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Intermediate
Joined: Jan 2013
Posts: 25
Likes: 2
From: canada
The jugs and pistons are S&S 97 inch sidewinder kit . they were put in at about 45000 kms. the bike has 108000 kms on it now . The noise is there hot or cold . If you hold it at 2000 rpm it sounds like it is going to come apart by itself.
Last edited by heritage2; Aug 30, 2023 at 12:23 PM.
HDF Community Team
Joined: Dec 2005
Posts: 5,378
Likes: 2,574
From: NC USA
Got my 05 twin cam torn down looking for a loud rattling noise . I was suspecting the crank but when I removed the jugs and pistons there was no up or down play in the rods or no tightness in the rod bearings . I removed the outer timing chain and gears and checked the runout on the nose of the crank at the round section right behind the crank gear notch . The dial indicator shows just under .003" . Do I have to remove the cams and oil pump and check runout further in ,or should this be OK ?. The front piston was scuffed badly and seems to have a lot of piston to wall clearance . Just using a feeler gauge it has about .006" as near as I can tell . Would this cause the noise ? I have replaced lifters and gone through the valve train twice trying to cure this noise and installed rocker lockers .
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,830
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From: poway
While typically TC comps in 05 models don't have any issues, it could be loose comp nut. The loose comp nut was more common on the 03s.
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Seasoned HDF Member
Joined: Apr 2011
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From: W. Texas
.006 Piston clearance is a bit much. I would want to address it.
But would also look at the compensator before condemning any thing else.
WP
But would also look at the compensator before condemning any thing else.
WP
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