oil pump bolts

(quoted from post at 17:36:09 05/13/20) It shows 27lb for 5/15",but doesn't list 1/4",so I'll extrapolate the difference from 5/16 and 3/8". Thanks.

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I found torque recommendations from several suppliers and for grade 8 bolts,from 7 lbs to 11 lbs was recommended. I set them
at 10 and tied them with safety wire.

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(quoted from post at 17:54:51 05/15/20)

I found torque recommendations from several suppliers and for grade 8 bolts,from 7 lbs to 11 lbs was recommended. I set them
at 10 and tied them with safety wire.

Click to expand...

Assume you're talking about the three oil pump cover to body bolts. These s/b 1/4-20 x 5/8.

Be careful looking up data and just winging it. You still torqued them too high. Probably not a big deal as most smaller bolts get tightened too much most of the time, and they usually take it OK. I just wouldn't do it in such a critical spot.
Bolts are new grade 8,so 10 lbs is 8-10. I have been working on engines for 50+ years,but this tractor for only 17.
To use a torque spec, be sure to identify the bolts correctly. I can't image in any way these would be a grade 8. I'd worry about stripping out the threaded holes in the body or stretching the bolt itself.

My torque charts shows 1/4-20 cap screws in a grade 5 to be 6.3 - 7.3 ft lbs, and in a grade 8 to be 9 - 10 ft lbs.

TOH had it right, just snug them up good.

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(quoted from post at 02:13:19 05/16/20)

(quoted from post at 17:54:51 05/15/20)

I found torque recommendations from several suppliers and for grade 8 bolts,from 7 lbs to 11 lbs was recommended. I set them
at 10 and tied them with safety wire.

Click to expand...

Assume you're talking about the three oil pump cover to body bolts. These s/b 1/4-20 x 5/8.

Be careful looking up data and just winging it. You still torqued them too high. Probably not a big deal as most smaller bolts get tightened too much most of the time, and they usually take it OK. I just wouldn't do it in such a critical spot.
Bolts are new grade 8,so 10 lbs is 8-10. I have been working on engines for 50+ years,but this tractor for only 17.
To use a torque spec, be sure to identify the bolts correctly. I can't image in any way these would be a grade 8. I'd worry about stripping out the threaded holes in the body or stretching the bolt itself.

My torque charts shows 1/4-20 cap screws in a grade 5 to be 6.3 - 7.3 ft lbs, and in a grade 8 to be 9 - 10 ft lbs.

TOH had it right, just snug them up good.

Click to expand...

/quote]New grade 8 bolts torqued at 10 which is 8-10. I have been working on engines for over 50 years,but only 17 years on this tractor,so don't know everything,so asked.

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(quoted from post at 23:18:32 05/15/20) New grade 8 bolts torqued at 10 which is 8-10. I have been working on engines for over 50 years,but only 17 years on this tractor,so don't know everything,so asked.

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(quoted from post at 05:20:32 05/16/20)

(quoted from post at 23:18:32 05/15/20) New grade 8 bolts torqued at 10 which is 8-10. I have been working on engines for over 50 years,but only 17 years on this tractor,so don't know everything,so asked.

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i like to tighten them till something snaps, and then back it off a half a turn :idea:

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(quoted from post at 05:20:32 05/16/20)

(quoted from post at 23:18:32 05/15/20) New grade 8 bolts torqued at 10 which is 8-10. I have been working on engines for over 50 years,but only 17 years on this tractor,so don't know everything,so asked.

Click to expand...

i like to tighten them till something snaps, and then back it off a half a turn :idea:

Click to expand...