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Farmall & IHC Tractors Discussion Forum
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404 rotating Valve cap ?

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vinniejimbo

04-30-2007 06:19:48




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Rebuilding a 404 C135 and have rotating valve caps on the exhaust valves that are shot. They use different valve springs than the intake valves. Bought a head rebuild kit and it came with all valve springs the same. Book says some had rotating valve caps and some don't. Can I replace the rotating valve caps with standard ones so I can use the springs that came in the kit ? Also why did they put these rotating valve caps in and what purpose do they serve ? Will I damage my heads if I use std ones ?

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Janicholson

04-30-2007 06:27:51




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 Re: 404 rotating Valve cap ? in reply to vinniejimbo, 04-30-2007 06:19:48  
The rotators are recommenced by me. They distribute valve wear around the full face of the valve, and seat, resulting in longer service life. The longer springs may not work with the rotators (coil bind) they will likely work with the non-rotator retainers. JimN



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