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#1 push rod type engine vs tiing chain03-22-2009, 01:19 PM
just wanted to ask if what is the difference with this type of engines?..is there a difference in performance? which of these two engines are the one who is easy to maintain?..need some answers please..thanks!
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03-22-2009, 05:42 PMThe pushrod or OHV type will be easier to maintain, setting the valve clearance, removing cylinder head, etc.
In theory they have less performance but for a day to day ride to work you won't notice the difference.Jincheng Monkey JC50Q-7
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03-31-2009, 02:10 AM
If the systems are made well and ridden gently they should both be about equally as reliable. In a high performance environment I think the OHC (overhead cam with a timing chain) is better due to the circular movement of the chain and cam. When you start to rev a push rod engine real hard I think the up/down motion of the push-rods (which connect the crank with the valves actuators) can be a little rough on the engine especially since there's a change of bending the rods.
The plus side of a push rod engine is that as long as it's gently ridden, it's a real work horse. I've had one run for hundreds of kilometers after getting literally entirely flooded. OHC (cam chain) engine require a great amount of lubrication at the head or parts start to shred.
Just my .02
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