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Time for Resealing the PTO
Posted: Thu Nov 05, 2015 8:54 am
by Carter
I had been noticing a lot of drips on the floor of the shop and although I was aware of some, lately it has looked more like a flood than just drips so yesterday I went through the process of disconnecting everything that needed to be removed after unbolting and pulling the tranny floor pan. I had previously ordered a kit from John at MWM and now that I have the leaky little ba$$tard on my workbench it is time to begin to stop the leaks by resealing, installing new gaskets and remounting it in time before the first snows come so I can then put the plow on and be ready.
Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 10:16 am
by w30bob
Hi Carter,
Hope all is well. I would think what you're about to do is pretty straight-forward, but haven't touched mine yet. If you run across anything that could trip someone up when resealing the unit......do me a favor and snap a pic or two. It will save me from having to ask stupid questions when I do mine.
thanks,
bob
Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 12:54 pm
by Carter
How are you doing Bob, been wondering about how you are.
I have done this job before and by following the PTO section in TM 9-8031-2 it's hard to screw this up. I took no pix yesterday due to greasy grimy hands. No need actually as the PTO is sitting on my bench and did not get a chance to work on it today....Sandy was home with list...long list in hand.

Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 1:00 pm
by T. Highway
Hi Carter,
I would like to also see this process since I will be doing mine this winter. Remember, a picture is worth a thousand words.
Bert
Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 3:43 pm
by Carter
Well now you guys have to realize that nothing mechanical is wrong with the PTO other than lube runs out at an alarming rate so I am just installing seals and gaskets and not doing a full disassembly and if pix of that are requested I will get some. I had redone the unit when was assembling the truck over 25 years ago and it only been used since to lift my snow blade and not used for any heavy load work. Let me know, thanks.
Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 6:06 pm
by just me
The ONLY thing not worn out is the PTO. It will be resealed soon. The drive shaft was junk and is now rebuilt. The winch is pretty worn out and is in the beginning of rebuild. I'll take pics, but have no way to post them.
Re: Time for Resealing the PTO
Posted: Thu Nov 05, 2015 7:27 pm
by ZGjethro
If you had proper gear lash before you removed the PTO, can you just reinstall it and torque to specs, or do you need to remeasure the lash?
Re: Time for Resealing the PTO
Posted: Fri Nov 06, 2015 3:59 am
by Carter
I made notes years ago of how thick and the number of gaskets that were required to obtain the correct lash and plan to use the same when reinstalling it. I was lucky when I bought several large boxes of parts 4 years ago that included 8 sets of pto shims/gaskets and plan to use what I need from that lot.
Re: Time for Resealing the PTO
Posted: Fri Nov 06, 2015 4:03 am
by Carter
just me wrote:The ONLY thing not worn out isn't PTO. It will be resealed soon. The drive shaft was junk and is now rebuilt. The winch is pretty worn out and is in the beginning of rebuild. I'll take pics, but have no way to post them.
Just ask one of the mods and I am sure they will help you post your pix or join one of the many free pic hosting sites, that is what I have done with Photo Bucket.
Re: Time for Resealing the PTO
Posted: Fri Nov 06, 2015 8:29 pm
by Cal_Gary
My PTO sounds just like yours, Carter-shift seals leaking, front and back. eBay has the kits available.
Gary
Re: Time for Resealing the PTO
Posted: Sat Nov 07, 2015 7:26 am
by Carter
Cal_Gary wrote:My PTO sounds just like yours, Carter-shift seals leaking, front and back. eBay has the kits available.
Gary
I never thought of eBay, first thought was MWM and got a nice set of gaskets and seals for the shift and output shafts. I have installed 2 but was called away by Sandy for another project I had been promising to do for her, hang a heavy large antique plate glass mirror.
Re: Time for Resealing the PTO
Posted: Thu Jun 16, 2016 1:12 am
by Cal_Gary
I finally got around to ordering the PTO seals and gaskets-$30 via eBay for the full set.
Gary
Re: Time for Resealing the PTO
Posted: Sat Jun 18, 2016 2:47 pm
by MSeriesRebuild
Usually the shift shaft is the cause of continued dripping after new seals are installed because of rust pitting damage. We strive very hard here to build leak free components, so all our rebuilt PTO's get a new stainless steel shift shaft. A NOS shaft may be rust pitted right out of the package, even if it is not, it will be rusted on both ends soon due to exposure where it extends outside of the case. We started custom turning stainless shafts years ago, easy to build a leak free gear box, and the really good part is it stays leak free as the stainless shaft never has a rust pitting issue, EVER. Therefore, unless you enjoy repeat rebuild performances of PTO (or any other gear with exposed shafts) to stop oil leaks, the stainless shaft is THE way to go. We have them in stock.
Re: Time for Resealing the PTO
Posted: Mon Jun 20, 2016 4:40 pm
by Cal_Gary
That's great info Charles, I will do a thorough inspection then reach out as necessary.
Thanks,
Gary