Rocker "pivot ratio", please explain...
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TECH Junkie
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From: Port Neches, TX
Rocker "pivot ratio", please explain... I've been seeing a ton of T&D and Jesel rockers on E-Bay for various engines and they all spec both the rocker ratio and pivot ratio. I'm too lazy to try and get my head around what the pivot ratio is and what it means. Hopefully someone knowledgeable will pipe up...
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TECH Junkie
iTrader: (11)
Joined: Jul 2005
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From: Port Neches, TX
I believe the specifications indicated are (1) the pivot length; and (2) the rocker ratio. There is no "pivot ratio." The ebay listings confuse this by, for example, indicating "1.75 pivot/2.00 ratio" which suggests a "pivot ratio" when actually it means a 1.75 pivot length and a 2.00-to-1.00 rocker ratio.
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TECH Junkie
iTrader: (11)
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
I guess that could be considered a ratio when compared to 1". IE, 1.65 pivot ratio would be 1.65" from the rocker shaft centerline to the roller tip centerline (1.65" : 1.00").
