How is it possible or make sense that the fan moves in the opposite direction of the firing order on the 9N? The firing order is from the drivers seat clockwise 1243.........but the fan moves in the opposite direction counterclockwise meaning the crank is moving counterclockwise
- Thread starter Ron Tron
- Start date
leroy in ne
Well-known Member
- Location
- Sterling, Nebraska
Most engines turn to the right or clockwise when viewed from the front. Distributors and magnetos may turn either direction depending on drive type, usually at 1/2
crankshaft speed. I hope I'm not confusing you if you think about it, from the rear the opposite rotation would be true
crankshaft speed. I hope I'm not confusing you if you think about it, from the rear the opposite rotation would be true
Fritz Maurer
Well-known Member
You have a extremely rare left-hand rotation 9N that
was intended to be exported to Pakistan to operate
PTO implements that turn to the right.
was intended to be exported to Pakistan to operate
PTO implements that turn to the right.
Steve@Advance
Well-known Member
Because the distributor is driven off the cam, which is gear drive off the crank, so it turns opposite the crank rotation.
BarnyardEngineering
Well-known Member
- Location
- Rochester, NY
Ok it's going to get difficult to differentiate between the people who are just messing with you and the ones that are giving you factual information right quick...
In short, everything you observed is normal. The engine turns counterclockwise when viewed from the seat, and the distributor turns clockwise because it is gear driven from the crankshaft.
In short, everything you observed is normal. The engine turns counterclockwise when viewed from the seat, and the distributor turns clockwise because it is gear driven from the crankshaft.
old
Well-known Member
- Location
- Camdenton Missouri
ALL Ford N series tractor engines spin the same way. Have you looked at more then just your tractor and compared the direction the fan spins?? Are you maybe going by the way the air flows?? If your going by air flow they made to type of fan blades for the N series Ford. One pull the air into the radiator and back onto the engine which is the common fan blade and the other is called a pusher blade and if made different and pushes the air out forward and away from the engine
Janicholson
Well-known Member
Both you and Steve @ advance know that the distributor rotation is gear, chain, or belt driven. Its direction of rotation is CW or CCW and is almost always the
same way within an engine group. The 90 degree angle of side distributor cam driven ignition systems can be either way depending on how the spiral gears are cut
on the cam. So best practice is to either look up the rotation, or crank it (hand or starter motor) with the cap off and look at it turn. I believe all side
distributor Ford N series tractors and many other Ford tractors have a common rotation. So do IHC letter series gas tractors etc. Jim
same way within an engine group. The 90 degree angle of side distributor cam driven ignition systems can be either way depending on how the spiral gears are cut
on the cam. So best practice is to either look up the rotation, or crank it (hand or starter motor) with the cap off and look at it turn. I believe all side
distributor Ford N series tractors and many other Ford tractors have a common rotation. So do IHC letter series gas tractors etc. Jim
Puller fans are more efficient than pushers . The pusher fan is also moving air that's already heated from the engine side, where a puller fan is getting cooler or ambient temp air. Tractors aren't fast, but whether it's 3 or 6 MPH going forward, you are losing that much air velocity with a pusher.
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