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swap out Ultima Rockers

Started by hbkeith, December 26, 2018, 05:40:13 PM

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capn

I still got the unused ultimas on my bench.Also lifters.Know a machinist may get him to test hardness of rockers.The motor was bought direct from Jireh one year ago.Dont know when it was built.

hbkeith

finally got around to installing the S&S rocker arms and new shafts last night , things look to be around 1/16 " ( will get a real measurement) shorter than the ultimas , gota order shims

Hillside Motorcycle

Quote from: hbkeith on February 20, 2019, 04:57:39 PM
Quote from: Hillside Motorcycle on February 20, 2019, 04:10:02 AM
Pushrod cup in the rocker arm will become galled.
Lack of heat treating correctly is what we suspect.
They will fracture also.
You replaced them with S&S 1.625:1 Scott ?

Yes.
Those were replaced with S&S 1.6 rockers.
Otto Knowbetter sez, "Even a fish wouldn't get caught if he kept his mouth shut"

hbkeith

Common to have to shim that much to fit the Ultima Scott ?

hbkeith

well , figured out why my rocker arms needed shims , S&S sent  Shovelhead Roller Rocker Arms in the wrong packaging  :nix:

hbkeith

well , finally got my Rocker Arms couple weeks ago , S&S had Shovelhead Rockers in EVO box come to find out ,then the replacement ones came after WAY to long ,were same way ,Shovelhead in EVO box  :doh: ,  Drag isn't the fastest with returns. I called S&S and they overnighted me correct parts . Got my Painted Tins back , Engine in the frame  :up: ,

Deye76

Nothing is straightforward is it. Glad you got it sorted out.
East Tenn.<br /> 2020 Lowrider S Touring, 2014 CVO RK,  1992 FXRP