861 Head Gasket Change

Tom Bond

Member
Got it installed today. So far, looks good. Glad I used plain water for the testing and to warm it up. Had one leaky hose. Only lost some water. No glycol. I agree now the re-torqueing is must. After warmed up and then letting it cool down for an hour or so, every one of the head bolts turned almost a quarter turn before the wrench clicked. I removed the rocker support arm to make sure of proper torque on all the bolts. Drained the water, refilled with coolant. Temp was kind of erratic until I got it all filled after the thermostat opened and closed a few times. Air pockets? Anyway, oil looks good now and best of all, NO BUBBLES IN RADIATOR!!! Going to leave the tin off a few more days and recheck oil to make sure it's still clean. Then I'll finish up the cosmetic stuff. THANKS to ALL for your help!
 
Sounds like you nailed it Tom.
I've seen the same thing as far as the T-stat/temp gauge goes.
I'm only guessing, but guessing the same as you, air pockets.
Seen it in cars, trucks and tractors. Once they work out it's gone.
Some of the cars I've worked on had a bleeder port for that reason.
Congrats on the fruit of your labor!
 
:lol: :lol: :lol:,,, I have several tricks to bleed the system before I fire'er up... I can even find any leaks before I add the coolant... Just tricks of the trade....
 
Glad you made a decision and moved forward with it. Just curious,
did you install it wet or dry and how did you do the initial
torqueing?

Mark
 
I did use the Copper Coat as cheap insurance. I torqued down as stated in the shop manual. From center outward and alternating side to side. Set at 30#, then 50#, then finally 70#. Brought it to temp, let it cool down some and then re-torqued all of them to 70# again. Rocker arm support, same way to 55#.
 

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