Diaphragm Spring and Spring Plate

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Feb 25, 2012 | 02:01 PM

Bankrupt

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Diaphragm Spring and Spring Plate

Hello,

I bought a clutch kit for my '93 Electra Glide. It came with a Diaphragm Spring that purports to be 20% stronger. I'm thinking I don't need a stronger spring....

Also, It came with extra plates (friction and steel) to omit the riveted Spring Plate that is sandwiched in the very middle of the clutch pack. I'm thinking I should leave the OEM spring plate in there.

The reason for clutch replacement is because of plate damage I did when I rebuilt it last winter causing clutch drag. I don't have wear or slippage issues. The bike is not a racer and it is not pulling very much weight but I made it about as hot as you can without boring the case for major displacement increase.

Am ready to soak plates and assemble.

So, how's my thinking? I ask because it's usually pretty dangerous.

Last edited by Bankrupt; Feb 25, 2012 at 02:06 PM.

Feb 25, 2012 | 07:52 PM

Dan89FLSTC

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From: South Carolina

Use the extra plates and leave the riveted spring plate out, they can fail and drive you nuts trying to figure out what is wrong with the clutch.

Feb 26, 2012 | 11:52 AM

Bankrupt

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What purpose does the spring plate fill? I see it has a very miniscule amount of compression.

Mar 3, 2012 | 03:34 PM

Bankrupt

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Thanks for the response Dan. - But before I omit a part that Harley obviously spent some effort designing, I want to know why it's in there.

I called Bennett Clutch and they told me the Spring Plate dampens chatter.

I think I'll tolerate a little chatter. I'm hard of hearing anyways....