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John Deere Tractors Discussion Forum
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720 LP Recheck head bolts after running?

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Ben So.Tex

04-27-2005 19:45:30




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To recheck head bolts/nuts do you do it while the engine is hot ?.... or do you let it cool down? which way is correct. Ben




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Kevin L.

04-28-2005 11:01:36




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 Re: 720 LP Recheck head bolts after running? in reply to Ben So.Tex, 04-27-2005 19:45:30  
I was always under the impression that the head bolt and nuts are torque after it cools down. Now for adjusting the valves then it's best to do it with it warm or around operating temperature.



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730-LP

04-27-2005 20:06:04




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 Re: 720 LP Recheck head bolts after running? in reply to Ben So.Tex, 04-27-2005 19:45:30  
Ben torque when hot as for your valves if the there is wear on the end of the rocker arm"there are most of the time" you can't get the valves set right using a gage.Try tighting the valve till you can't turn the push rod,then back it up till you can turn it,around 1/3 turn.On your runing problem do you have the proper amount and weight of oil in the air cleaner? if not they don't have the right amount of vaccum to pull the vapor through the carb.

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