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Old 08-19-2011, 03:51 PM   #1141
Airhead Wrangler
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Quote:
Originally Posted by Stagehand View Post
nerds
...says Mr. D+D.

Never talk shit about star wars.

[/BSINGINSOLOSTHREAD]
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Old 08-19-2011, 05:43 PM   #1142
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Originally Posted by Airhead Wrangler View Post
...says Mr. D+D.

Never talk shit about star wars.

[/BSINGINSOLOSTHREAD]

Take your nerd talk elsewhere please
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 09-09-2011, 10:49 AM   #1143
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Somewhere in this thread I had complained that my right cylinder has a louder valve train than the left side, and proclaimed that I had measured everything carefully when I converted the 1981 rocker setup to the 1985 and later style with shims...

On a whim (whim/shim, get it?) I pulled the valve covers and measured 'em all.. low and behold three are outside spec and require shimming!

The new shims are at the dealer, time permitting they will go in Saturday and I'll post some pictures.
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 09-11-2011, 08:21 AM   #1144
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So where has the time gone?

Let's see... spent hours remodeling my work space...

Bike parking area:



reworked the bench area:



Spent endless hours wet sanding my tank:



and finally, reshimmed my noisy valve rockers that were out of spec by quite a bit:



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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 09-16-2011, 03:17 PM   #1145
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Wow, I must say that correctly shimming your rockers really does make a significant difference in the valve train noise level...

Can't wait to ride home after work... the bike sounds REALLY different!


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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 09-16-2011, 08:08 PM   #1146
bgoodsoil
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Can you give me a link or a quick write-up on the rocker shimming? I'm at 80k and my left side's a lot louder than the right.
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Old 09-16-2011, 09:31 PM   #1147
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Yep, in my experience rocker end play is the source of FAR more valve train noise than valve lash.

Adjusting end play on shimmed assemblies is fairly straightforward. Bring each cylinder to TDC (as in adjusting the valves) measure rocker end play clearance. if it's more than .001 you'll probably be able to add a shim to quiet it up.

After measuring all four clearances buy an assortment of shims that will close up the gaps (buy some extras to allow for mixing and matching as needed). Remove the rockers and reassemble with a combination of shims that eliminate the gaps. Test fit (either w/out pushrods or loosening lash adjusters enough to allow you to see if the rockers still swing freely but have no end play - I prefer not installing the pushrods). Finally, put everything back in place, torque the head bolts and adjust the valves.

If you removed as little as .001" - .002" in end play you'll probably notice that the bike is quite a bit quieter. I've removed .003" - .004" which was causing quite a rattle.

As for final clearance, aim for less than .001. The rocker should swing but have no noticeable end play (I can't recall an actual spec - maybe Lone Wolfie has one?).

That's how I do it. Hope it helps.
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Old 09-16-2011, 10:15 PM   #1148
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no noticeable play. SHould just see the oil film kinda thing, but still it rotates without any kind of resistance.
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Old 09-17-2011, 08:19 AM   #1149
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Originally Posted by bgoodsoil View Post
Can you give me a link or a quick write-up on the rocker shimming? I'm at 80k and my left side's a lot louder than the right.
Brad,

I actually updated my rockers to the 1985 and later version that makes a provision for shims... I don't know how to shim your 81-84 version... perhaps just throwing in a shim?

As to determining the correct shims needed, I used feeler gauges to determine what was needed, took apart the rockers, measured all the shims I had and determined what I needed to buy.

Funny thing is there are like 5 sizes availabe, four cost under a buck and one is $3.... before I saw the prices I was going to buy three of the 0.35's that are $3, instead I spent $5 and got six other shims to do the same job
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.
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Old 09-17-2011, 08:31 AM   #1150
Lornce
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Originally Posted by SOLO LOBO View Post
Funny thing is there are like 5 sizes availabe, four cost under a buck and one is $3.... before I saw the prices I was going to buy three of the 0.35's that are $3, instead I spent $5 and got six other shims to do the same job
When shimming anything it's prudent to use the least number of shims possible.
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Old 09-17-2011, 08:40 AM   #1151
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i ran onto that same thing, just a couple of weeks ago. Crap, months ago, now Obviously the expensive one is the one you need


81-84? I think you have the shimmable ones, and not the ones you press and tighten. Is there a black plastic bushing and some shims already in there?

First of all, you have up-and-down lash on the rocker, yes? I stuck feeler gauges in the gaps on mine to get an idea of what to aim for in terms of how much room I had to make up.
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Old 09-17-2011, 08:59 AM   #1152
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Quote:
Originally Posted by Stagehand View Post
81-84? I think you have the shimmable ones, and not the ones you press and tighten. Is there a black plastic bushing and some shims already in there?
81-84 are the weird ones, 85 on have the plastic insert and shims...


Quote:
Originally Posted by Stagehand View Post
First of all, you have up-and-down lash on the rocker, yes? I stuck feeler gauges in the gaps on mine to get an idea of what to aim for in terms of how much room I had to make up.
That's what I did.

I ended up with two shims per on 2 and 3 shims per on two... agreed about the minimum shims, but these are to some extent not bearing much load as they are on top and do have some clearance.
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Quote:
Originally Posted by Stagehand
your bike is suitably dirty. Well done.

SOLO LOBO screwed with this post 09-17-2011 at 09:07 AM
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Old 09-17-2011, 03:24 PM   #1153
datchew
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that bike is starting to look mean Gage.

I really like it.
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Old 09-17-2011, 07:38 PM   #1154
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Mine's an '85. If I post pics can you tell what I've got? What am I looking for?
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Old 09-18-2011, 10:00 AM   #1155
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Originally Posted by bgoodsoil View Post
Mine's an '85. If I post pics can you tell what I've got? What am I looking for?
Check Anton's page here:

http://largiader.com/tech/rockers/
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Quote:
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your bike is suitably dirty. Well done.
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