ev27 install...little problem
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Tourer
Joined: Sep 2013
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From: new york
ev27 install...little problem
well, I thought I ruled doing my first cam swap...took like 15 minutes! lol...everything is lined up, wheel spins....except when the cone is put back on...then nothing moves...no pushrods installed yet..i don't have a dial, but I read on the nightrider instructions to use a .055 spacer which I did.....I imagine the spacer is too thick.... it goes bearing, thrust washer, spacer, then cam? right?
does the ev27 cam need the spacer on a stock 80" evo? or am I missing something?
does the ev27 cam need the spacer on a stock 80" evo? or am I missing something?
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Joined: Dec 2010
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From: Florida
You need to check endplay of the cam. There is not set amount. It totally depends on your bike what size spacer you will need. And just to double check. The order should go like this
I think the endplay calls for .010-.040
I think the endplay calls for .010-.040
Last edited by misfitJason; Nov 2, 2016 at 07:02 PM.
Dirt don't hurt
Joined: Jan 2011
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From: Haslet Texas
Not sure on the bottom number but I'm sure about the 50 thousandths.
For the EV-27 its 8-15 thousandths.(If memory serves)
Dirt don't hurt
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
well, I thought I ruled doing my first cam swap...took like 15 minutes! lol...everything is lined up, wheel spins....except when the cone is put back on...then nothing moves...no pushrods installed yet..i don't have a dial, but I read on the nightrider instructions to use a .055 spacer which I did.....I imagine the spacer is too thick.... it goes bearing, thrust washer, spacer, then cam? right?
does the ev27 cam need the spacer on a stock 80" evo? or am I missing something?
does the ev27 cam need the spacer on a stock 80" evo? or am I missing something?
Unless you rotate the motor somehow (usually by turning the rear wheel).
You have to check the end play through the lifter block bore..block removed, rear worked best for me, feeler gauge between the cam and spacer or (thrust washer), run your timer cup bolt in the end of cam and this helps move the cam in and out. I think the older bikes may not need a shim, but I am not certain of the year break, seems everyone shoots for the .010 setting but the service manual I believe allows up to .050. BTW the lifter blocks are 12 pt 1/4" and you need a good socket with a lot of patience.
Last edited by apples402; Nov 2, 2016 at 07:16 PM.
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Tourer
Joined: Sep 2013
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From: new york
yeah I'm turning the rear wheel
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I am assuming the stock cam is .050 longer, correct? The .005 ( with shim) added length may do that if your original cam's endplay was closer than .010. Question..does your thrust washer have the tabs? If so the tabs should be lower in the rear so the flat spot clears the rear lifter block. You may need to use a .050 shim or less, this will be based on your measurement of actual end play. Also, you do have the gasket in place right?
Last edited by apples402; Nov 2, 2016 at 08:04 PM.
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From: Canton, Michigan
My 93 used a shim when I had the EV27 put in.
I'm thinking it may be the 84's to 88 or 89. I think in the Andrews install instructions there was something about that, I'll look for them. But I believe 800's situation will be needing a shim based on the difference in cam length.