EVO clutch

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nmaineron
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EVO clutch

#1

Post by nmaineron »

Is there a conversion available that will allow me to run an EVO style clutch on my 59 four speed transmission?



RooDog
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Re: EVO clutch

#2

Post by RooDog »

Yes, a direct bolt in, early Evo clutches fit a tapered shaft like yours, but in stock form the die cast hubs were weak and tended to break, so that would need to be upgraded to a steel hub, more expense. You may also need to adjust the splined front sprocket a bit to assure alignment. My advice for a clutch upgrade would be a Rivera Primo Pro clutch. They have a choice of three diaphragm springs, even a stock H-D spring will work. Or a Barnett Scorpion clutch if you're not putting out a lot of HP. It uses a choice of two sets of six coil springs each and may be tuned for the pressure rating of your choice.
I wouldn't mess with the stock Evo clutch unless it were free, but then, free stuff can get expensive....
....RooDog....

Here is a replacement steel hub on eBay....
https://www.ebay.com/itm/HardDrive-Clut ... 0005.m1851

nmaineron
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Re: EVO clutch

#3

Post by nmaineron »

Thanks Roodog, I've never really had any issues with the EVO clutches but I don't stress them out either. Never done a burnout or pop wheelies and I don't see any in my future :wink:

panhead_kicker
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Re: EVO clutch

#4

Post by panhead_kicker »

Surprisingly, the clutch pack in my 97 FLHP began shedding brass at about 12k miles :oops:

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Re: EVO clutch

#5

Post by RooDog »

Where did the brass come from? The linings are bonded, no rivets like the old 10 springers, just wondering.... I'm using a Rivera with no issues...

ozwick86
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Re: EVO clutch

#6

Post by ozwick86 »

My BDL Competitor Clutch is great. You ought to check it out as well.

panhead_kicker
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Re: EVO clutch

#7

Post by panhead_kicker »

RooDog wrote:
Thu May 21, 2020 3:00 am
Where did the brass come from? The linings are bonded, no rivets like the old 10 springers, just wondering.... I'm using a Rivera with no issues...
No, the spring plates certainly had rivets. Unless it had been replaced in the 900 miles of police service it had seen, then I have to assume this was factory.
https://www.hydra-glide.com/phpBB3/view ... lhp#p36519

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Re: EVO clutch

#8

Post by RooDog »

OK, I see the pic of the disintegrated disc. Time for some new stuff....

nmaineron
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Re: EVO clutch

#9

Post by nmaineron »

Ya, I can't believe that they thought the spring plate would hold up. I took it out as soon as I saw it. I've been running the Pro 1 clutch.

daves59pan
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Re: EVO clutch

#10

Post by daves59pan »

i two have a bdl competitor clutch in my 59 pan best clutch i ever put in

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Re: EVO clutch

#11

Post by ozwick86 »

I installed it and didn't touch it for for at least 8 years. I thought I would inspect it and found barely any wear.

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