Pushrod to guide plate clearance

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Pushrod to guide plate clearance

Post  maverick532 on November 19th 2012, 12:02 am

pushrod to guide plate clearance . whats standard minium ? maxium ? 7/16 tapered pushrod . P51 heads P51 guide plates .
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Re: Pushrod to guide plate clearance

Post  c.evans on November 19th 2012, 1:28 am

Well you better check, and cycle the engine all the way through full lift a few times by hand,,, because those guide plates are normally 3/8",,,,,,and it all depends on how far down the taper is.

Secondly, let me warn you that those 7/16" pushrods will most likely be rubbing the pushrod holes in the P-51 heads. The location will be at the bottom of the holes in the head,,,and you will need to grind for some more clearance to elongate the holes inward towards each other. In other words the intake pushrod hole needs more clearance towards the exhaust pushrod of that particular cylinder, and then vice-versa.

Hope this helps,
Uncle Charlie

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Re: Pushrod to guide plate clearance

Post  Lem Evans on November 19th 2012, 11:10 am

Don't run the tappered pushrods on a guide plate.......straight only with a plate.

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Re: Pushrod to guide plate clearance

Post  rmcomprandy on November 19th 2012, 11:34 am

Lem Evans wrote: Don't run the tappered pushrods on a guide plate.......straight only with a plate.

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Re: Pushrod to guide plate clearance

Post  maverick532 on November 19th 2012, 2:20 pm

wished I'd have known that before hand . pushrods not returnable . thats an expensive oops ! now got to reevalute .
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