Chain saw question?
Question:can i switch out the 14" bar for a 16" bar ,and not ruin my chain saw or endanger my safety, will it effect the power ? it's a 35cc mc culloch..
Answers:
You can attach a longer bar to the engine, however it won't necessarily increase your cutting capacity, in fact it will probably lessen it greatly. The reason for that is because the horsepower is rated from the crankshaft, not the tip of the guide bar. The same amount of links will be sent through a minute but the amount of RPMs of the chain will drop down (Since there are more links in the chain) this will result in a slow moving chain.
This would be good in a back-and-forth saw (jig saw, reciprocating saw, etc.) However, a chain saw relies on sheer speed to make its cuts, not brute force, so you would actually have a weaker saw.
It should't be a problem as long as the bar it the same as far as the way it mounts.
If the mounting plates line up and the new chain is spaced the same (same guage) as the old, then yeah you CAN do it. But the engine is sized for the length of the chain. A longer chain means more work for the engine. In this case one seventh more work. Therefore the saw, under full load, will work about 12 % harder.
Not a problem. Just make sure the new chain has the same spacing for the clutch.You could even go for a 18" but as Bug Man said, harder on the motor. Look around for another saw if this one is to small. Sometimes people will swap a bigger saw for a smaller one.
Your engine will have to pull a chain that is 4" longer (2 " each top and bottom) than the original, so the frictional load will be increased by 2/14 or about 14% higher. (2" longer divided by the original bar length.)
The engine will produce its maximum torque at a specific RPM, measured in an unloaded condition. That is the peak HP rating.
With a longer bar and chain, the load on the engine will be 14% higher load than the original bar, so the maximum torque will be achieved at a lower RPM, and the chain speed will be reduced.
Yes, you can swap out your 14 "bar and chain and you will lose chain speed. That should not be a problem if you keep the chain sharp and clean. Motors are designed to be oversize just for people like you who later decide they need a bigger tool. It is called a 'fudge factor.' If you later decide you need an 18" bar, get the bigger motor. Oregon tools have good after market bars and chains specifically designed for what you are considering.
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