i know i know, snug it up. I learned the hard way one time that its best to use a torque wrench on oil/differential bolts. Its time for my 50 hr service and would like to know if anyone knows the oil pan drain plug torque value and the hydrostatic drain plug torque value as well. Me and the dealer looked through the service manual for 20 minutes today and found every torque number under the sun but those two. The techs laughed at us and said you just snug it up. Im sure to a guy who does it day in and out thats fine but i just wanna know because well.....i do.
drain plug torque values?
- Thread starter chucky79
- Start date
Orange Turbo
Member
Lifetime Member
Equipment
MX5100, pto13000kw, Loader, Ripper,Plow,Disc,Mower,Forks,3pt spreader,Box Blade.
I understand where your coming from. I have seen some pretty Easley striped plugs. The sealing washer is the main problem That they drip. The torque value will depend on the thread and bolt size, cast or stamped steel pan. (In my opinion) that's why the just snug, answers. Anyway, I just snug'em than another 1/4 turn. I'll check In some manuals and try to find some torque spec's for ya.....
Orange Turbo
Member
Lifetime Member
Equipment
MX5100, pto13000kw, Loader, Ripper,Plow,Disc,Mower,Forks,3pt spreader,Box Blade.
The size of the plug is mandatory for the proper torque.
But: on the ''SAFE'' side. Up to grade 4.
I would think with a good seal washer, these torque spec's will work just fine.
6mm, 5.8-6.8lb
8mm, 13-15lb
10mm, 29-33lb
12mm, 47-53lb
But: on the ''SAFE'' side. Up to grade 4.
I would think with a good seal washer, these torque spec's will work just fine.
6mm, 5.8-6.8lb
8mm, 13-15lb
10mm, 29-33lb
12mm, 47-53lb
Billdog350
Member
Equipment
Kubota L3710 HST,L2230A QT,forks,Takeuchi TB125, 60" Luck Now pto Snowblower
The BX is a sheet metal drain pain, some of the L series use aluminum ones.
I usually torque the drain plugs around 20ft lbs....which is plenty for that application. They do strip out easily if you crank them too hard. Make sure to buy replacement copper washers and replace when needed, that will help keep the seal and keep you from over tightening the plug.
I usually torque the drain plugs around 20ft lbs....which is plenty for that application. They do strip out easily if you crank them too hard. Make sure to buy replacement copper washers and replace when needed, that will help keep the seal and keep you from over tightening the plug.
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Most drain plugs on Kubota's use a true sealing washer, So NO torque is required.
If it has a rubber washer it's just a snug tight fit, snug means thread till bottomed then using a standard wrench or 3/8 socket wrench pull the handle till snug, normally about 1/4 of a turn, over tightening will ruin the seal, less is more.
If the seal on the plug is a copper washer then snug + a little more will do, if it leaks replace the washer, don't keep tightening.
If it has a rubber washer it's just a snug tight fit, snug means thread till bottomed then using a standard wrench or 3/8 socket wrench pull the handle till snug, normally about 1/4 of a turn, over tightening will ruin the seal, less is more.
If the seal on the plug is a copper washer then snug + a little more will do, if it leaks replace the washer, don't keep tightening.
One grunt is good enough for me.
Just beond hand tight.
No need to blow the seal out or strip the pan.
Just trying to keep oil from dripping out.
Not a major suspention or pressure place.
Just like the oil filter.
Sugestion from here states 20-30fp or snug for a truck.
http://www.dieselplace.com/forum/63...7-5-lbz-lly/140968-torque-oil-drain-plug.html
Just beond hand tight.
No need to blow the seal out or strip the pan.
Just trying to keep oil from dripping out.
Not a major suspention or pressure place.
Just like the oil filter.
Sugestion from here states 20-30fp or snug for a truck.
http://www.dieselplace.com/forum/63...7-5-lbz-lly/140968-torque-oil-drain-plug.html
Last edited:
i used my torque wrench to remove the factory tightened bolts and just watched at what level they broke free. it was between 15-20ft lbs for the oil pan and 45ish for the hyrdo drain plug. when i put it all back together i went with 15 on the oil pan and 40 on the hyrdo. I noticed those metal washers with a rubber center that Kubota uses also. I didnt have any leaks after filling and running for 30 min so im gonna call that good. I did find some concerning stuff in my hydro fluid and on my screen. There were bits and GOBS of what appeared to be silver silicon or RVT sealant. Some came out with the drain and on the screen but i saw more in the bottom on the hydro through the screen hole that i couldnt get to. Ill start a new thread for that though with pictures. Im not sure what im going to do about that but i think i need to at least contact my dealer or kubota corporate as it cant be a good thing long term.....