Torque sequence on starting motor heads

Crawler Nut
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16 years 3 hours ago #23453 by Crawler Nut

Torque sequence on starting motor heads was created by Crawler Nut

Hi everyone, it has been awhile since I've posted on BB.
My d*mn computer needs to be fixed AGAIN! so, I don't have time to do
a search, and was hoping someone could put a picture of head nut
tightening sequence and amount on here for a 1u, 212 blade starting engine.
Thanks! CN

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OzDozer
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16 years 40 minutes ago #23464 by OzDozer

Replied by OzDozer on topic Torque sequence on starting motor heads

I have never seen a torque tightening sequence for any of the horizontal ponies, and the books say only .. "tighten evenly to 35 ft lbs".
The heads on ponies aren't rocket science, they're only a lid to cover the piston, bore and valves, like all flatheads.
Additionally, the ponies don't run any more than about 6.5 or 7:1 compression at best, so it's not like you have to hold in extreme cylinder pressures.

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R W
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15 years 11 months ago #23465 by R W

Replied by R W on topic Torque sequence on starting motor heads

Start from the centre and work out, can't recall any sequence being given in
the D46U shop manual, D8H manual doesn't show any either.

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SJ
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15 years 11 months ago #23466 by SJ

Replied by SJ on topic Heads

RW is right, start from the center area of nuts (bolts) and work out. Always go about half the final tightening and then the 2nd. time around go the full tighteness on any head.Also I always went the 3rd. time to make sure all nuts (bolts) were up to correct torque or tightness and none missed.

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Torque sequence on starting motor heads

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