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Author Topic: Compensator spring  (Read 414 times)

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longlast

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Compensator spring
« on: July 10, 2024, 06:16:03 AM »

Hi there,  i have a request,   if anyone would have the most outer se compensator spring kicking around?

Id like to know the OD of the first (smallest) spring. 

Cheers


« Last Edit: July 10, 2024, 06:19:54 AM by longlast »
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trippy

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Re: Compensator spring
« Reply #1 on: July 18, 2024, 06:16:19 AM »

Hi Pete,

Hope youe well, I think I have set in the loft, will have a look and let you know, Can I ask what the problem is?

Mark.
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trippy

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Re: Compensator spring
« Reply #2 on: July 20, 2024, 11:13:08 AM »

Hi Pete,

Smallest spring  Od- 3.891 inches or 98.84mm.

Have a complete SE Comp in the loft, got about 5k on it, but used with "Compensaver" oiling device, wear is good.

In case your wondering what the "Compensaver" is, well before the latest version of the HD SE Comp came out 2 American engineers got together to design and build a oiling device, basically a bolt in oil tray that sits under the top strand of the primary chain and collects huge amounts of oil, and funnels it by way of 2 holes onto the centre and spokes of the the comp, used it for a bout 4 /5 years never had to change out the comp again, they went to HD with there design and HD wernt interested, but if you look at the way they now look to keep the comp lubricated, they have in essence copied there design (without the bolt in tray), but one thing they did not do is replace that really noisey centre bolt roller bearing, the Compensaver has a composite bearing thats really quiet.

Myself I changed to te "Darkhorse Man-o-war" comp, much quieter and no metal to metal contact, bit pricey but works really well.

If you need any more info let me know.

Regards
Mark.
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longlast

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Re: Compensator spring
« Reply #3 on: Today at 04:47:14 AM »

Hi Mark,
 I've got it sorted out mate.
The problem was , i was getting a thumping feeling vibration that i couldn't seem to figure out what was the issue causing it.
While i was riding i decided the thumping feeling felt like it was in relation to the firing of the motor. What i was feeling was the pulsing of the sliding cam of the compensator.
I opened up the primary and removed the compensator.  I found the first spring that backs the sliding cam had completely collapsed (flattened out) allowing the cam to pulsate each time the motor fired.

I got a heavier duty spring from Fueling Part. It's  has a 18° degree  bevel and 0.072" thickness  compare to the SE first spring of an 8° degree bevel and 0.068" thickness

Here's some photos of the fault

SE collapsed  spring
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longlast

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Re: Compensator spring
« Reply #4 on: Today at 04:50:19 AM »

 Wear on the sliding cam,  spring flattening out
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longlast

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Re: Compensator spring
« Reply #5 on: Today at 04:51:36 AM »

The new spring
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longlast

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Re: Compensator spring
« Reply #6 on: Today at 04:55:36 AM »

 
 After a test ride the issue is gone. There's no more abnormal vibration only the smooth running of the ride  :orange:  :2vrolijk_21:

Thanks for reaching out Mark  :2vrolijk_21:
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