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Pushrod question on CH25

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Dcf1999
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2023/10/09 18:10:50 (permalink)
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Pushrod question on CH25

Helping a buddy with his CH25. Took off the valve cover and discovered one bent pushrod. The rocker arm bolt was loose (about 1/4 inch out) and so rocker was loose because of that. I’m thinking that may have caused the bent pushrod. I’ll look at valve guides and valves as well when I go to fix it.

What’s interesting is the new pushrod kit which includes the pushrods, rocker arms, bolt, and pivot. His old rods have holes in the ends for oil. Which a lot of them do. I guess the new ones don’t? The ones I ordered (correct part number according to kohler) don’t have holes anymore.l, they’re solid. It’s an updated design.

When replacing pushrod(s), do I need to pull lifter and bleed it down? If so, I assume it can be pulled without taking off head? I have a lifter puller to reach in there to pull it.

I plan on installing the new rocker arms first, then compressing spring with a special tool and inserting the rods. That’s what it says to do in the manual.

I just need to know if I should/need to pull lifters to bleed down.

Thanks!

Dace

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    SRTsFZ6
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    Re: Pushrod question on CH25 2023/10/10 08:35:22 (permalink)
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    I wouldn't think you have to bleed the lifters down.
     
    They already have/had oil in them.  
     
    .https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/kohler/oem-cross-reference/basic/ch25-68500-basic-25-hp-18-61-kw/cylinder-head-breather-group-4-24-52-ch18-750 
     
    Do any valves look higher or lower in the head?
     
    .
    post edited by SRTsFZ6 - 2023/10/10 08:36:34

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