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Antique Farm Tractors Vintage farm tractors on rubber tires with various implements. Ford, John Deere, Oliver, McCormick and more.

Antique Farm Tractors

Push rods

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Old 12-09-2018, 06:13:00 PM
Moline Moline is offline
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Default Push rods

has anyone ever heard of solid push rods causing any damage to the cam or anything else? would they be to heavy?
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Old 12-09-2018, 07:35:49 PM
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FWurth FWurth is offline
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Default Re: Push rods

With the low speed of those engines the weight of the lifter isn't too big of an issue. It's the type of metal and degree of hardness in the finish that makes the lifter not gall with the cam lobes. Using the wrong metals is the fast way to destroy a camshaft. As far as push rods go, many older engines use solid cross section push rods from new. Light weight tubular ones came about for higher speed engines to lower reciprocating weight to better balance the valve train.
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Old 12-09-2018, 08:25:10 PM
OldThresherM OldThresherM is offline
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Default Re: Push rods

Agreed.The type of metal and hardness are the key.My 1929 John Deere D had a bent pushrod when I bought it.Thankfully there was no apparent camshaft damage.Even though the cam has no support bearings in the center.
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