Rocker Noise after Upgrade - Page 2 : V-Twin Forum: Harley Davidson Forums

Barney Biker · 06-26-2010, 02:08 PM

Ok guys, Why would he need shims if he didn't need them before cam change?
Just want to understand.

Barney Biker
07 EG

sfmichael · 06-26-2010, 05:22 PM

Quote:

Originally Posted by nw_guy4_fun

12-0704 .005, 12-0710 .007, 12-0715 .015 shims
Teds Cycle.

Don,
Are those HD #'s? Tried to check them at Zanotti's and they didn't come up. Thought I might want to have a few on hand before I start my build, trying to avoid anything that would halt progress midstream.

Also need to buy all camshaft bearings and camshaft shim/spacer kit. Brgs should be easy enough to find locally I'm assuming. Probably ok to use snap-ring over?

Spacer kit HD only I'm assuming.

Thanks,
Michael

wurk_truk · 06-26-2010, 09:40 PM

Go ahead and get a 110; 120; cam shim. Snap ring is just a couple bucks. I didn't get the cam shims ahead of time, ONCE, and my dealer didn't have the one I needed while the bike was apart.

Lesson learned on that one! HAHAHA.

Those aren't MOCO numbers for the rocker shims.

sfmichael · 06-26-2010, 10:00 PM

Thanks wurk,

Figured those shims would come as an assortment. One of those two should fill the bill, eh?

Where should one go for the shims, Ted Cycle as Don suggested? I see they are a HD dealer so I thought they might be MOCO parts.

The dealer sells the circlip seperately? Again, I thought one might have to buy a bearing replacement kit from them. Not usually that way with cars, don't know why I thought'd it be that way with bikes.

WI Bob · 10-06-2010, 08:05 PM

Interesting thread as I have been looking for shims.

WI Bob · 10-08-2010, 10:02 PM

Quote:

Originally Posted by wurk_truk

Shovelhead rockershaft shims. I took the easy route and got em from J&P. Get a few sizes. Place em on the NON thrust side. Carb side for intakes and primary side for exhausts.

wurk_truk

I am about to replace the rocker supports with SE supports and then new stock rockers and shafts. When I match up the new parts the best I can, I still have gaps of .006 on one and .008 on three. So I will shim.

But I cannot get my head around why the intake and the exhaust thrust on opposite sides? Please explain more for me.

Thanks, Bob

TIMTOOLMAN · 10-08-2010, 10:44 PM

hey j. crawford
read my answer in this thread "valve train noise" by uncle salty, its my method, it works

jammerx · 10-09-2010, 07:26 AM

rocker noise? maybe pushrods are not adjusted correctly? go one more flat?

TIMTOOLMAN · 10-09-2010, 09:53 AM

depends on how deep the pushrod already is in the lifter??

WI Bob · 10-09-2010, 05:37 PM

Quote:

Originally Posted by jammerx

rocker noise? maybe pushrods are not adjusted correctly? go one more flat?

In my case, 3 different types of lifters at .150 and currently .140 into the Woods lifters.

TIMTOOLMAN · 10-09-2010, 06:33 PM

i would nt take the woods lifters past his adj specs. His instruction sheet that comes with the lifters say they act like hydrosolids when pumped up, so id be careful, maybe 1/2 more at max.

WI Bob · 10-09-2010, 07:11 PM

I spoke to Bob before going that far. I know it is pushing the limit.
He is right, they do bleed down very slow compared to Harley B or HQ.

WI Bob · 10-13-2010, 09:43 PM

Just curious on how well the shims wear.

Does anyone have some miles on a twin cam than has had the rockers shimmed?

I would think the outside of the shim that is against the support would see very little oil.

BVBOB · 10-14-2010, 06:12 AM

Quote:

Originally Posted by WI Bob

Just curious on how well the shims wear.

Does anyone have some miles on a twin cam than has had the rockers shimmed?

I would think the outside of the shim that is against the support would see very little oil.

Not sure this will correct your noise anyway but IMHO I would at the very least mill the rocker arm enough to use a thicker washer to correct end play, I just don't feel good about a VERY thin washer between wear areas.

bmaker · 10-16-2010, 05:15 PM

I will be 100% honest. I have spent an ebarrasing amount of money and time trying to cure the noisy rocker issue with little success. I do not want to shy you away from trying but I also would like to help you save some money. I have chased the noisy rocker now for about 5 years. Here is a SHORT list of what I have done:
3 different sets of lifters, 3 different sets of pushrods, 2 complete builds with pistons, heads etc..(one by a very reputable builder), shimmed rockers to .004 -.006, 20W-50, straight 50, straight 60 all brands, cleared the rocker covers and bases, positioned top end with oil pump pins, set pushrods anywhere from .100 to .140, gear drive, new hydraulic drive, Andrews 26 cams, Andrews 37 cams, New 06 and up oil pump, baisley oil pressure spring. That's all I can remember for now. Again, I pray that you succeed and do not want to persuade you not to try. However, assuming that everything is put togetether correctly and you have no internal damage, this will be your big white whale! One positive is that everytime I have decided to attack it, my motor has gotten bigger and more HP/TQ!
I have thought many times that we should take up a collection and offer it to the first builder that truly solve the Twing Cam ticking issue! Good Luck.