SuzukiSavage.com - Rocker Arm design change

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Rocker Arm design change (Read 419 times)

Charon Serious Thumper Offline Posts: 1811 Harvard, NE Gender:	Re: Rocker Arm design change Reply #15 - 12/15/12 at 12:39:42 Too bad they didn't change it to a roller follower, too.
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LANCER Serious Thumper Alliance Member Online Savage Beast Performance Parts Posts: 10668 Oklahoma Gender:	Re: Rocker Arm design change Reply #16 - 12/16/12 at 04:36:15 They could be the rockers used on the '90-'95 DR6650. The cam, valves and orientation of valves are the same as the LS650 head. The camshaft core is the same but has bigger lobes, the valves and springs are the same size, though the springs may be a bit stiffer...not positive of that off hand.
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Super Thumper Senior Member Offline 2001 LS650 With 97mm Big Bore Kit, Stage III Cam. Posts: 469 Windsor, Vermont Gender:	Re: Rocker Arm design change Reply #17 - 12/23/12 at 20:37:30 You can send your old rocker arms to Web Cams and have them hard-welded and reground for $95.00...I am shipping mine out to them the day after Christmas but be advised you need to call them first. Here's the link: http://www.webcamshafts.com/index_blank.html?pages/vehicle_search.html
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Rocker Arm design change Reply #18 - 12/24/12 at 08:02:51 Cam ate the follower pretty good,, Hows that cam lookin? Would now be a good time to step up to a hotter cam? Any idea why it ate that follower?
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MeLikeBike

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Monroeville, PA
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Re: Rocker Arm design change
Reply #19 - 12/24/12 at 09:48:43

Thanks for the link, but I got mine already. Seems like a lot of trouble to refinish when you can get them new for about $100, right?

Super Thumper wrote on 12/23/12 at 20:37:30:

You can send your old rocker arms to Web Cams and have them hard-welded and reground for $95.00...I am shipping mine out to them the day after Christmas but be advised you need to call them first.

Here's the link:

http://www.webcamshafts.com/index_blank.html?pages/vehicle_search.html

2003 Savage LS650, Dyna, 2/3 Spacer

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MeLikeBike

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Monroeville, PA
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Re: Rocker Arm design change
Reply #20 - 12/24/12 at 09:50:27

I got no idea...the cam looks fine (to the eye anyway). No grooves, scratches, anything. Maybe the rocker metal is softer enough to take the brunt of the abuse, however it was abused. It's interesting that the exhaust was so much more worn.

justin_o_guy2 wrote on 12/24/12 at 08:02:51:

Cam ate the follower pretty good,, Hows that cam lookin?
Would now be a good time to step up to a hotter cam?

Any idea why it ate that follower?

2003 Savage LS650, Dyna, 2/3 Spacer

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paulmarshall Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1268 Carterton,New Zealand Gender:	Re: Rocker Arm design change Reply #21 - 12/24/12 at 09:53:46 I would be very interested to hear of any performance improvement. Photos too please.
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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: Rocker Arm design change Reply #22 - 12/25/12 at 11:06:09 Its just MY OOOOpinion, But, I believe that running valves too loose allows the cam to slam into the follower more than just start to ride up the slope of the cam. IDK if that can hurt them, but I would rather keep my valves on the tight side of the adjustment.
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gone fishing

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Re: Rocker Arm design change
Reply #23 - 12/25/12 at 13:42:12

As the valve seat and face wear, they get tighter. If allowed to get too tight performance will suffer and valves can burn.

Too loose will result in excess valve clatter and of course performance can suffer as well.

As stated above too loose could have contributed to the rocker arm wear as could poor heat treating from the factory. Using the wrong weight and type of oil can be a factor as well.

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