rocker arms setting

[Anonymous-0]

Recntly i had the cylinder head off and cleaned.Thanks to you guys I learned that the cylinder head bolts should be /and was torq. at 125lbs. But i'm having problems finding out how and what to set the rocker arms at. I appreciated any and all the help you can give. THANKS. p.s this is a 1950 john deere model A

 

[Carlyle hoffman]

Each PISTON at TOP DEAD CENTER in TURN ,CLOSE adjusting STUD ,back off 2/3rds turn or 20 THOUSANDS ,COLD. If you indicate wear 2/3rds of a turn is ,it will give you 20 THS nearly on the MONEY, use FEELER GAGE to be EXACT, but everybodys EXACT is DIFFERENT. Make sure LOCKING NUTS are TIGHT after SETTING . Hope this HELPS.

 

[Mike Aylward]

Carlyle, you are half right. The valve setting is .020", but you open the valves 1/3 or a turn, or two flats, to get the .020" setting. Hope this helps. Mike

 

[Anonymous-0]

Thanks for the info,and the feeler gage should be at, if i'm understanding right set at.20 ?

 

[Anonymous-0]

thanks guys,I think i'm getting confused on the opening of the valve and flats procedure. Question, can i one by one set the rocker arms by putting the gage on the rocker arm then tighten down the locking nuts ?

 

[Bob Harvey]

A service manual is a BIG help. Even a repro owners manual is worth having. HTH

 

[Anonymous-0]

Hy guys not even half right the valve setting is .022 cold this gives .020 hot

 

[EScottUtz]

Kent is right. Set them @ .022 cold and they will be @ .020 hot. You are going to get that .022 gap between the top of the valve stem and the rocker arm when the piston is just before TDC. Both valves will be closed at that time. Then turn the flywheel 180 degrees and adj the valves on the other side.
Scott