Cam Shim Question
Road Master
Joined: Apr 2009
Posts: 1,123
Likes: 43
From: NJ
Sorry to hijack but I want to be clear since I'll be in the cam chest this winter.
The tabbed thrust washer goes up against the bearing, if a shim is needed does it go inbetween the thrust washer and the cam or on the end with the gear and bushing??
Thanks
Ds
The tabbed thrust washer goes up against the bearing, if a shim is needed does it go inbetween the thrust washer and the cam or on the end with the gear and bushing??
Thanks
Ds
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
You need the washer with the ears against the bearing. The ears keep it from spinning and wearing the cases down. any additional shims go between the tabbed washer and the cam.
John
John
Seasoned HDF Member
Joined: Jun 2010
Posts: 9,332
Likes: 3,873
From: Upstate New York
I don't have the "tab" washer in mine, either, just a large plain washer. From what I'm gathering by this discussion, '88 and up OEM cams are longer and may not need an additional shim. Aftermarket cams are made to fit all years of Evos,and thus, are shorter and may require shimming in later Evo cases. Is that correct?
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
I don't have the "tab" washer in mine, either, just a large plain washer. From what I'm gathering by this discussion, '88 and up OEM cams are longer and may not need an additional shim. Aftermarket cams are made to fit all years of Evos,and thus, are shorter and may require shimming in later Evo cases. Is that correct?
Yes....and I have never seen a tabbed cam shim in an Evo but then I haven't pulled a pre-88 Evo Big Twin apart recently.
Road Master
Joined: Apr 2009
Posts: 1,123
Likes: 43
From: NJ
My 94 had the tabbed washer but the putz who last worked in the cam chest ground off the tabs saying they made noise...I've only once let someone other than me work on my bikes and I'm regretting it two years later....My dealer said the tabbed ones were no longer available and to just use the round one...but that's a dealer
I have a new tabbed washer and am figuring out my cam options with an eye towards doing the job late this season, depends on some knee surgery..
Ds
I have a new tabbed washer and am figuring out my cam options with an eye towards doing the job late this season, depends on some knee surgery..
Ds
Seasoned HDF Member
Joined: Dec 2010
Posts: 7,736
Likes: 1,524
From: Coromandel Peninsula New Zealand
That odd because the 94 exploded diagrams show the round washer...I don't think it makes any difference, most shims are free to rotate,
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Cruiser
Joined: May 2011
Posts: 205
Likes: 1
From: Always moving
Mine was round and to answer Dougs question, I put it back where it came from -against the bearing- and put the shim between the washer and cam. When your in there it makes much more sense to do it this way.
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