flywheel bolt torque
+4
whitefield
Curt
bbf-falcon
BUZZ BUZZARD
8 posters
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flywheel bolt torque
This had nothing to do with a bbf or race car just trying to slip this in. Can anyone out there give me the torque specs on the flywheel bolts on a 1970 john deere 3020 diesel tractor. I have looking for the specs for the last 4 hours. I am trying to get my dads old tractor put back together before monday and there is no one out hear that can get me the infor the jd dealer and all the local tractor shops are closed til next week. Sorry for the non 460 tread but I hoped that one of the members may have the info. Thanks!
BUZZ BUZZARD- Posts : 80
Join date : 2012-06-10
Re: flywheel bolt torque
On something like that I usually find the diameter of the bolt and what type and see how much it can be torqued before it's overtorqued. Google it
bbf-falcon- Posts : 8995
Join date : 2008-12-03
Location : Jackson, Ohio
Re: flywheel bolt torque
It's a one mississippi, two mississippi with an impact isn't it?
Curt- Posts : 2791
Join date : 2009-02-08
Age : 62
Location : Henrietta, Texas but mostly on the road
Re: flywheel bolt torque
Got a hold to my old votech instructor, another vote for 85 ftlbs. 85 it is!
Thanks!
Thanks!
BUZZ BUZZARD- Posts : 80
Join date : 2012-06-10
Re: flywheel bolt torque
Everything I find says 85-90 lbs....with new bolts.
IDIeselman- Posts : 107
Join date : 2009-01-04
Location : Ludington MI
Re: flywheel bolt torque
What bolt diameter and thread size , tells you exactly what is required
Gregaust- Posts : 625
Join date : 2009-08-09
Re: flywheel bolt torque
1/2 inch course, grade 5, tractor is back together now torqued at 85. Thanks for the info.
BUZZ BUZZARD- Posts : 80
Join date : 2012-06-10
Re: flywheel bolt torque
BUZZ BUZZARD wrote:1/2 inch course, grade 5, tractor is back together now torqued at 85. Thanks for the info.
My chart says 55 ft-lbs for a Grade 5, 1/2-13 thread with lube, dry torque is 75 ft-lbs.
Are you sure they are corse thread?
Fine thread 1/2-20 is 65 ft-lbs with lube and 90 dry
Dave
Dave De- Posts : 797
Join date : 2011-05-27
Location : Highland, MI
Re: flywheel bolt torque
Don't think too much into this guy's,its a tractor not a TF Funny car
bbf-falcon- Posts : 8995
Join date : 2008-12-03
Location : Jackson, Ohio
Re: flywheel bolt torque
We usually put a little ass into it. Too much ass will break it. Lol
To be honest I am a big guy so I usually just use a regular 1/2 inch drive rachet and go as tight as I can.
To be honest I am a big guy so I usually just use a regular 1/2 inch drive rachet and go as tight as I can.
whatbumper- Posts : 3024
Join date : 2009-11-11
Age : 44
Re: flywheel bolt torque
Thats the thing with charts I found three different ones with three different values. I agree with falcon it aint no top fuel motor as long as the bolts are not grossly over or under torqued it should be fine. Yes they were course thread unlike most flyweel bolts we see.
BUZZ BUZZARD- Posts : 80
Join date : 2012-06-10
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