Pushrod vs OHC?
Discussion
So yes. Why is OHC considered better than pushrod engines? is it actually? from my perspective
ohcs have longer timing chain or belt requiring more maintenance, whether its replacing tensioners or belts, or both.
ohcs are harder to get decent lubrication to
ohcs are easier to access.
pushrods are likely to have more things to replace if something breaks (thinking bent pushrods / damaged rocker gear).
ohcs have longer timing chain or belt requiring more maintenance, whether its replacing tensioners or belts, or both.
ohcs are harder to get decent lubrication to
ohcs are easier to access.
pushrods are likely to have more things to replace if something breaks (thinking bent pushrods / damaged rocker gear).
hadnt considered valve location stuff. Cool.busa_rush said:
Pushrod is a bad idea, I can't see any benefits to a pushrod design unless the cam is driven by a gear rather than a chain, but almost all pushrods seem to use chains. Even gear driven it has very little going for it.
Isn't it just a case of "that's the way the first bloke did it so we've always done it like this." ?
Explain. Why is a chain a bad idea? it works, the chain run would be too short to require and tensioners, so nothing there to break...
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