MF 35 perkins valve adjustment

Cormiers Cove · Aug 19, 2017

I want to check the valve clearance. Probably a dumb question but how hard is it to rotate the crank shaft to find the TDC line in the inspection opening behind the rubber elongated plug?

The tractor is completely assembled and I'm wondering how hard it is to turn the crank over?

Do I do this with the pulley?

ptfarmer · Aug 19, 2017

The valve lash on a cold engine is .012" intake, and exhaust. Remove the rubber plug removed from the inspection hole. When both rocker arms are loose on the #1 cylinder (front cylinder) the TDC mark on the flywheel should be in the middle of the inspection hole. Check the clearance on valves 1,2,3, and 5. Rotate the crankshaft one revolution clockwise 360 degrees (use a socket on the front crank pulley bolt to turn the engine) the TDC mark will again be in the center of the inspection hole, then adjust the clearance on valves 4, and 6. Note, when viewing the valves/rocker arms from the front to the back of the head the #1 valve/rocker arm is the at the very front of the head, and the #6 valve/rocker arm is at the very back of the head (valves front to back 1, 2, 3, 4, 5, and 6).

Cormiers Cove · Aug 19, 2017

Thanks. I read that also. How hard does the crank turn over? Do I use a ratchet on the pulley to rotate?

ptfarmer · Aug 19, 2017

You can use a ratchet, you can always put a cheater pipe on the ratchet if its a bit hard for you to turn.

MF 35 perkins valve adjustment

Cormiers Cove

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ptfarmer

Well-known Member

Cormiers Cove

Member

ptfarmer

Well-known Member

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