Screamin Eagle Big Twin Compensator

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Jan 19, 2009 | 12:58 AM

#151

redrazor

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Joined: Sep 2008

Posts: 46

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From: Pleasant Hill, CA

Much "smoother" but still noisy!

That's a good description of how mine works now! Very smooth take off and "hook up" ; but still lots of rattle-bang noise at that point of almost-no-load acceleration! (2,800 to 3,400 rpm). I hate that noise! It really bugs me some times. But ...... it sure runs nice. I installed my SE unit right out of the box, and did notice that the compression spring/washers were not a really good fit on the end of the crank; but I'm hopping that the noise is chain related; and that the revised/hydraulic tensioner from SOHB will correct it; even though ....... I never could see any actual evidence of the chain hitting any part of the primary case or its cover(???). I'm hoping that it is just the chain slapping up and down all the time at that particular RPM(?)

I guess I won't know until I try the new set up when it becomes available.

Wish me luck too,

redrazor

Jan 19, 2009 | 09:54 AM

#152

fattdog

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Joined: Sep 2008

Posts: 123

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From: Fort Worth, Texas

Mods to SE compensator

1947 Knuckle, please let us know how the final outcome of the mods you are doing to the SE comp turn out. I am hearing several people talk about just putting them in there stock with good results however, being the kind of person I am I am inclined to want to do the mod before instalation. Let us know.

Respects,
Spanky

Jan 19, 2009 | 07:40 PM

#153

1947 Knuckle

Intermediate

Joined: Aug 2007

Posts: 35

Likes: 1

From: Ontario

Quote:

Originally Posted by redrazor

redrazor,I am wandering if you have installed an IDS rear sprocket.I put one on my 07 FLHX last year and improved the smoothness of the drivetrain a lot.Mike.

Jan 19, 2009 | 08:02 PM

#154

1947 Knuckle

Intermediate

Joined: Aug 2007

Posts: 35

Likes: 1

From: Ontario

Quote:

Originally Posted by fattdog

Hi, Spanky.I only tried the bike inside my shop because its -15* and 2 feet of snow outside. No noise on startup and it turns smooth at all rpm's .With stock compensator,I could produce a chatter in the primary by lugging engine in first gear, this is gone. Going to Daytona Feb.and March, will test fully there.The people talking about putting the springs in as is have either put them in already or do not have the facility to blueprint them (its not a big or expensive job, any good shop can do it in one hour)Since 2007 H-D have been putting in stock flywheel assemblies that were not within specs; causing vibration ( I had One) also putting in substandard compensator causing starter noise and more ( they came out with IDS to fix problem)Just because it comes from the MoCo doesn't mean it is good enough .My father told me that if I ever hear myself say ''that is good enough" you can be sure that you can do better.If you have the possibility to improve the fit of the washers, do it ,if you have some vibration later, at least you can say its not caused by the washers.Mike.

Jan 19, 2009 | 08:07 PM

#155

1947 Knuckle

Intermediate

Joined: Aug 2007

Posts: 35

Likes: 1

From: Ontario

Quote:

Originally Posted by 1947 Knuckle

Hi, Spanky.I only tried the bike inside my shop because its -15* and 2 feet of snow outside. No noise on startup and it turns smooth at all rpm's .With stock compensator,I could produce a chatter in the primary by lugging engine in first gear, this is gone. Going to Daytona Feb.and March, will test fully there.The people talking about putting the springs in as is have either put them in already or do not have the facility to blueprint them (its not a big or expensive job, any good shop can do it in one hour)Since 2007 ; H-D have been putting in stock flywheel assemblies that were not within specs; causing vibration ( I had One) also putting in substandard compensator causing starter noise and more ( they came out with IDS to fix problem)Just because it comes from the MoCo doesn't mean it is good enough .My father told me that if I ever hear myself say ''that is good enough" you can be sure that you can do better.If you have the possibility to improve the fit of the washers, do it ,if you have some vibration later, at least you can say its not caused by the washers.Mike.

Let me know how you make out

Jan 20, 2009 | 12:51 AM

#156

redrazor

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Joined: Sep 2008

Posts: 46

Likes: 0

From: Pleasant Hill, CA

Been there;Done that!

Quote:

Originally Posted by 1947 Knuckle

redrazor,I am wandering if you have installed an IDS rear sprocket.I put one on my 07 FLHX last year and improved the smoothness of the drivetrain a lot.Mike.

Knuckle:

I installed the IDS rear sprocket about 3.000 miles (6 mos) ago. It helped reduce the klunck when going into 1st gear, and helped make up-shifts more quiet and smooth. No effect on rattling/knocking noise coming from primary case!

Oh well .................

good luck,

redrazor

Jan 20, 2009 | 07:38 AM

#157

rbabos

Banned

Joined: Mar 2007

Posts: 3,706

Likes: 7

From: Woodstock, Ont , Can

Quote:

Originally Posted by redrazor

I think once you address the tensioner/chain thing your problems will go away. There's nothing left to make noise unless the ip and trans bearings are shot causing the shaft to bounce around. There would be different warning sounds for that, which you never had. I didn't find anywhere where you did a crank runout check on the sprocket side. As an example, my garbage crank has .010 runout on the sprocket, but no chattering, but I'd bet with the outer primary off at certain rpms the top of the chain will be bouncing. So far, the adjuster teeth are in good shape and controlling it, but not forever.
Ron

Last edited by rbabos; Jan 20, 2009 at 07:49 AM.

Jan 20, 2009 | 01:25 PM

#158

redrazor

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Joined: Sep 2008

Posts: 46

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From: Pleasant Hill, CA

Let's hope so.

Quote:

Originally Posted by rbabos

I think once you address the tensioner/chain thing your problems will go away.
Ron

I hope you're right, Ron.
I think I checked the darned cases pretty close; but could have missed some minor evidence of rubbing/slapping of the chain(??)

We'll see when I get to replace the tension adjuster some time down the road.

Thanks for the input.

redrazor

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Jan 20, 2009 | 03:22 PM

#159

rbabos

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Joined: Mar 2007

Posts: 3,706

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From: Woodstock, Ont , Can

Quote:

Originally Posted by redrazor

I think I mentioned this before , but if there is rubbing it will be at one of the bolt casting lugs on the outer primary between the comp and adjuster area. That's where mine was. Nothing in the inner.
Ron

Jan 20, 2009 | 11:23 PM

#160

redrazor

Intermediate

Joined: Sep 2008

Posts: 46

Likes: 0

From: Pleasant Hill, CA

On the top side?

Ron:

I guess you must mean on the top side, right? That's where all the chain bounce seems to be on the video. There shouldn't be any slapping on the bottom since the tensioner keeps the chain pretty well close to the sprockets.

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