MTD Transaxle Basic Rebuild (Replacing all Bearings) Part 1 of 2
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- Опубліковано 26 вер 2012
- Part 1 of 2 Rebuilding / replacing bearings in my transaxle transmission off my older model MTD mower, transaxle model 717-1050 or 717-761 and several other models are built basically the same, but may have different part numbers for the bearings. This is the type of transmission that has forward neutral reverse, no actual gears in it. I show all the part numbers at the end of part 2 of all parts i replaced in this 2 part video. Thanks for watching!!!
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Thanks for taking the time to share the info, it is very much appreciated.
I read books about engines, I had a small one as a youth, plus my father was always working on cars, souping them up etc. :)
I started off by trying to build a supercharger cooling shroud for a 3 horse Briggs when I was in high school. Then I wanted an air compressor, which I did finally build. The Sleeve Valve came along when a friend found an article on it in an old SAE Journal from the 1920s. Been making things every since :) Lots more to build!
Thanks for this video. Your video is helpful to me as I am in the process right now of replacing the old transaxle in my 2000 MTD Riding Mower, because the housing on the old transaxle cracked all the way around it. A new transaxle from MTD for my mower costs $617, which is too much to spend on an 18 year old mower, and so I bought a used transaxle from a 1996 mower off of eBay for $120 + $20 shipping. Before I install the new (used) transaxle I am going to take it apart, clean all the old grease out, inspect the internals, and then refill it with new grease. The new grease I will use is "Super S Cotton Picker Spindle Grease Grade 00". I bought it at Tractor Supply for $4.99 a quart. I had did a lot of online research before going with this grease, and many lawnmower repair forums recommended it. After I get the transaxle installed, and the mower working again, I might split the housing in half on the transaxle that is cracked and see if it is weldable, and if it is then have a local welding shop TIG weld it. I already talked to them about it, and they said they could do it and the cost would be about $50.
your welcome, glad to help out. I hear ya, wow that is expensive for a new one, you can get a new mower for not much more haha That is a good idea to do that, that should last a good long time. I'll have to try that grease next time i do one. I have seen videos of people welding them and they seem to hold up, but it has to be done right, aluminum is hard to weld. Thanks for Watching!!!
hardest part is getting everything to line up on reassembly. Thanks for watching!!!
Brother, you are my hero. Thank you from the bottom of my heart. Now I know what I’m working with, gonna tear down that transaxle without fear of breaking something permanent. I’m thinking heavyweight gear oil might be the way to go over grease packing. It’s a wet-sump, so splash lube should do the trick. If I can find a place thick enough to tap I might try to install drain and fill plugs, but that aluminum looks pretty thin.
Your welcome, glad to help out! Some people actually recommend a grease/oil mix in these, as long as you put a sealant on the surfaces and replace axle seals as well, it will stay in it. I'm sure a fill and drain plug could be added, just probably can't tighten it to much. Thanks for Watching!!!
Yes, having access to a machine shop would be awesome, it was great when I could do that. Somethings are just impossible to do without proper equipment.
I look forward to seeing your piston valve vids :)
I hear you!
My problem is that neither my new wife nor I want to part with lots of our goodies, and it won't all fit into the house! Slowly I am moving more engine stuff out into sheds in the yard, since mice don't affect Brigg's much, but they tear into blankets and Christmas trees or books!
1:55 If you don't use the right grease you WILL be rebuilding the transaxle again.
MTD requires Shell Darina grease - only. When I rebuilt my transaxle I used good quality moly grease. The transaxle lasted about an hour before one of the gears seized to a shaft and the tractor would only run in reverse.
I checked into the grease and found out their grease is the only stuff, at least that I was confident in buying at that point, that had a low enough working temperature to work. The grease has to have a low operating temperature for sufficient oil to separate from the soap or it won't lubricate the shafts and the gears will seize.
The grease is available from the parts supplier with all the rest of the parts. It's cheap, buy it.
+Priorityof Calls Thats exactly what happened to this one, i was recommended to use that lucas redntacky grease, but it was a mistake! I difinetley will use the right stuff on the next rebuild. I have a 5 speed that needs rebuilt. Thanks for Watching!!!
no problem! glad to help! thanks for watching!!!
thanks! fairly simple really. i have a 7 speed that needs new bearings as well. kind of afraid to take it apart haha HAHA i hear ya, i finished the top of it in lacquer a few months ago, i like how it gives better contrast with the black tool board behind it. Its 18" by 6' i hope to build another one like it next summer. thanks for watching man!
i hear ya! i cam across you on here like 3 years ago doing a search on homemade engines i think it was, i hope to get into machining sometime soon. that sleeve valve is just simply amazing how it works! Its crazy how it all works! oh yeah, i'm getting ready to start editing the 2 part video on my piston valve, i'm going to show my first and second attempts at making the piston valve, you'll laugh at the first try haha then part 2 will be running it.
i'll put it on my list, can't promise when I will make it though, i usually only do videos on stuff as I have to repair. hope you understand thanks for watching!
Part 2 is on here, if you go to my channel and type in transaxle on the search both parts should come up. Thanks for Watching!!!
actually there weren't any bloopers from this after all, i thought there would be haha. yeah a hydrostatic would be fun haha thanks for watching!!!
thanks! no problem, i'll have part 2 up in the next day or 2. thanks for watching!!!
Excellent video! Thank you
Hmm, yeah it could be a broken or wore out bearing, I can't think of anything else that would cause that, if the disc was moving on the axle/shaft i'd say it was a worn out pad on the backside. Thanks for Watching!!!
You make this look easy.
A 6' bench, that is great!
You are welcome, I try to watch folks vids as much as I can :)
seizing may have occurred if you did not grease the brake shaft before putting the bevel gears on it. Manual says to do it to prevent cold weld of gear to shaft.
I hear ya. Actually i just put in my vice and pounded the crap out of it, heat probably would help along with some penetrating oil. thanks for watching!!!
This is very helpful
Great video, Thanks for posting.
Bill
I keep several buildup all the time, there pretty dependable until and cheap rebuild
Cool vid, I always wondered how those were built. Good rebuild job. Matbe I will tackle a 5 speed transaxle someday :)
I am jealous of your work bench, I used to have a big one, but then I moved :(
Wall to wall benches lol :)
Yes, we never seem to have enough space for all our stuff!
The needle bearings I need to replace are the ones you didn't tear into. The gear spindle coming out of the top
its doing fine now, no problems at all. thanks for watching
I've thought of buying me one of those small Mini lathes, just for small projects and stuff. I kind of wish i took the machine shop class in high school instead of building construction, oh well haha i'm uploading part 1 right now which is the construction of it, i wished i'd listened to you a little better when making the valve, i tried to it my own way but it didn't work haha i didn't have no way to "pin" the hole in it. but after 3 attempts, i got it haha it will be a while before its up, its
If you ever get the chance, try a hydrostatic one. Its pretty challenging but, fun ! especially when you have no books to help you out.
HAHAHA i know right! but this one in this video is 40 years old, they made stuff better back then, now a new one, yeah i'd have to open it up and see if it has metal gears or not, ever since briggs starting using plastic camshafts in there smaller engines, i have to question any part if its plastic or metal now! just never know! thanks for watching!!!
Im elbow deep in the same thing right now and I have a gear that is seized up just like you said you had one. How did you get it loose? Heat?
@fnaguitarplayer9 Hey i just got one of these on a lawntractor and the brake disc axle moves in out when the gearbox is in motion. Any idea what the problem is? I thought it might be a bearing or something?
Its here, just go to my channel and do a search for transaxle and both parts should come up. thanks for watching!
how do you take axel apart . can you do video on it please . i'm trying to lock my rear and need to know how to get apart.
Would it be logical to add a zerk fitting for this transmission unit inorder to grease this thing so often
Thanks for the video! OH, and there is not an S on the end of "anyway. As in "maybe the gear was going to lock up anyways" 🙄
Need a link for part suppliers and possibly tools needed for doing the repairs...thanks
What'd you use to clean it out?
How does one tell what model of transaxle one has ?
could you do a video as far as adjusting and replacing brakes on a riding lawn mower?
Is the MTD axle seal and bearing change the same as on the Troy Built Horse Riding mower? Have a bad oil leak coming from the (looking from the rear)left side axle.... Do I have to take out the transmission to replace this seal? Thx
It should be very similar if not the same as this, the only difference may be the shape of the bearings. its best to take it out, just makes it easier to get to everything. Thanks for Watching!!!
What type of grease did you use?
Those gears start at 17.00 each on amazon!
I hear ya! Thanks for Watching!!!
Hi ,
great video,my question is what type of grease did you (finally ) descide to use when you were closing up this transaxle. Thank you for your time !
You'll probably laugh, because the only other grease i had available was a vintage can of Esso, and its been fine since! But any real thick grease will work, i should have got the green lucas grease instead of the red! Thanks for Watching!!!
Do you a serial number for parts
part 2 is up now.
haha yeah i feel it makes them a little more protected.
Quick question: thIs Is the closest video so asking here). I just got this working following your carb videos. I went to change gears, pressed in the clutch pedal, heard a pling sound (metal falling onto metal), and could not engage any gears, The pedal did not return to its original position and seems to gave no effect in engaging the transaxle. I think some connector came loose. This is a murray riding mower, 38608X92N. I cannot see the end of the clutch rod near the transaxle. the big sprint seems to be connected, and when pushing the clutch, the rod moves but cannot tell if it is moving something and the back end. Does the housing where the battery sits come out without dropping the transaxle?"
Went and looked some more, very hard to see this stuff on this mower, but i found the source of the pling, exactly what I thought it was, a busted spring, the Extension Spring 165X74 . Still have to say thank again. Your videos have brought back to life this old mower.
Glad to help out. Thanks for Watching!!!
My Troy Bilt X609G riding lawn mower is now riding rough in FWD. Anytime I increase speed or try to go up an incline, it grinds, jerks and acts like it doesn't want to move at a constant speed. I just replaced all of my belts, blades and the air filter for seasonal maintenance and it is riding like a brat kid to the shower. The Transgear might be on it's last legs. Can anyone offer advice to what it might be?
zaneyone1 We had one do that a long time ago, it was either a inner bearing was broke on the axle, or on the other shaft that the forward reverse gears ride on. It could be a tooth broken off or a spline slipping. Also it might be something simple as the gear selector loose or bent not letting it go in gear all the way. thanks for watching!
but you know how that is, its never enough haha i want wall to wall benches hahahhaa i'm uploading part 2 right now, should be up this evening sometime.
part 2?
Thank you.
Your welcome, Thanks For Watching!!!
Where do you buy all the Part for the Transmission or transaxle
Fmiguelify Parts tree had all the parts, but i ordered a couple bearings (bushings) from tulsa engine warehouse with another order to save a few bucks, not a big different. You should also be able to find them all on ebay as well. Thanks for Watching!!!
Hey What is the recommended type of grease to use on this transaxle? How much do you use to coat all the gears and bearings? thank you
I've been told to either use the thickest grease possible or using a regular grease and mixing it with gear oil (90 weight) so it will flow on all the gears and bearings, some will use a grease fitting and pack them completely full. I used probably the equivalent of a tube and half. There is alot of opinions on this... Thanks for Watching!!!
Chuck Roberts 00 grease from Tractor Supply it’s about $5 a bottle
I was riding my mtd the other day and the rear tires locked up. I had to take the belt off to push it back to the house. Is the pulley on top of the transaxle supposed to turn when you push it in neutral? It won't move at all when I push it in gear. The only way I can push it is to put it in neutral and take the belt off. None of the pulleys are seized up.
No, it should not turn when its in neutral, are all of the gears or forward/reversing working? If not then the shifter may be broke or lose, also check the brake, if its stuck they will act strange sometimes. Thanks for Watching!!!
Maybe I better do a search for RamChargerMiles007 vids or perhaps JaunCharger007!!!
lol :) Danged people will copy anything these days!
Don't get me wrong though, folks like you building another Piston Valve Engine are a whole other matter, folks that go thru all the work and effort to do a project like that have my respect :)
None of us can think everything up, and we all have different talents and abilities.
Best of luck with all of your endeavours!
I converted it to oil (ep 80-ep 90 ) with drain and refill and a fix magnet to hold the dirt
it drip a little , refill it every 70 hours works fine
I've thought about doing that, but was afraid the oil may not get to the upper spindle bearings, but it would probably do better than grease in the long run. Thanks for Watching!!!
Yep , upper spindle has a grease nipple with a long copper tube so I can grease it now and then (ottherwise i can't reach it without the copper tube) To keep the housing oil tight I used locktite but it drips ( A large cartbord under is the solution )
The tranny has no 'meat' to convert to real bearings .
Now i am thinking to fill it with SLICK 50 .tranny oil .
Do you have converted the mowerdeck spindles ? I prefer I could grease them
, or put high quality sealed bearings in (next)
Joris van der vliet Heard that, shame it leaks though, but at least its not to bad just having to put more in every 70 hours. As far as the blade spindles (I call them quil assemblys) I haven't gotten around to it yet, because mine are the small type, as i show in this video here: ua-cam.com/video/83QihJt4uog/v-deo.html , but a hole could be drill somewhere between the 2 bearings and a grease fitting could be welded to it. You can actually replace the bearings in them, as well if you wanted to go that route. Alot of options really, now as far as the bigger spindles on like the newer mowers, a grease fitting can easily be installed but alot of grease will be wasted as there is quite a big space between the housing and the shaft though. but its definitely doable.
Joris van der vliet yep I don't have a fill or drain plug I just kept the little amount of grease that was in there and filled it up to the top with 75W-90 synthetic lol
That is a good lubricating rear end oil. But it is first best to clean all old grease out and replace it. I don't know about yours but mine is not a completely sealed unit and it does not even use a gasket. The grease is thick enough not to run out, but 90 weight is oil not grease and even though it is a heavy and good rear end lubricant it may over time seep out of the transaxle. I cleaned all the grease out of mine and put new grease in and added a small amount of STP to help keep it slick. Seems to work fine. Your's will no doubt work fine as long as the oil doesn't seep out and all the gears and bearings get oiled. These things don't turn fast enough to get all that much friction. So it should not be necessary to put the same type grease in it that came out of it as long as you remove all the old grease and fill it up as much as you can get in it with new grease.
So what Greece do I use I have the same exact transmission
There has been alot of suggestions on what to use on these, if you read below you will see alot of answers to that, basically any good grade automotive grease should work, thicker the better. Thanks for Watching!!!
haha i hear ya! that is true haha at least if a mouse does get in a motor its fairly easy to get out, not doing no harm to the motors haha i think i need to build a 2nd garage!!! might be a few more weeks before i get around to editing the piston valve video.
lol, building a 2nd garage, now that would be quite a challenge!
Thats right, you edit your vids (they do look good when you upload them!).
I have only edited one vid, the one where we set off a passengers air bag, and it went flying 40 feet into the air! I inadvertantly said a Bad cuss word, so I edited that out :)
sorry to be picky but the bearings are phosfer bronze
Part numbers ?????😢
i'd like to haha yeah i do it for 3 reasons, first off being its so hard to make a 5 minute (espicially a longer one than that) without stopping, i always make mistakes, and 2 so i can put titles on them, and 3 so i can "watermark" them with fnaguitarplayer9 on the bottom corner. HAHA i hear ya!
my mtd transmission sounds terrible when I goes up and down Hills
They all whine some going up and down hills (nature of spur gears) but if its really loud It could either be the gears and/or bearings wearing out or it may just need repacked with grease, that can cause noise as well. Thanks for Watching!!!
I'm surprised it's not all plastic gears
That looks like the high heat red grease found at walmart?
It was actually lucas red n tacky #2. I have used that grease your talking about, it seems pretty good, not sure about for this but for bearings and stuff it worked good. Thanks for Watching!!!
i used the the red from Walmart once, it ran and dripped out the grease gun from sitting, like it melted, what a mess. So you know, I learned a good bit from your video and replaced my bearings in my transaxle, Still whines though
haha I need more room and i refuse to get of my stuff hahaha
i like your videos but when you have a lot of background noise it would be a good idea to speak louder so you can be heard. thanks
Sorry about that, its hard to judge how well the camera is picking up, and I'm not a loud talker. Thanks for Watching!
00 grease, at tractor supply
I'll use that next time i rebuild one, thanks for the lead! Thanks for Watching!!!
I got the same kind of transmission I need to pay you to do it
a 20 minute video in HD so it will take like 4 hours before its "watchable" haha
Dirty cases, dirty hands, dirty parts, so what could go wrong.
Hahahahaha ! Grease again (Blooper 2 maybe ?)
hahah ain't that the truth! well thanks! yeah i wouldn't have done if you were the one who designed the type of engine. but i guess i could be considered a semi-copy cat haha if it hadn't of been for you, i probably would have never even heard of a piston valve engine, or any other of the types of engines you have built!
Yes, all good ideas!
I suppose a "watermark" is a good idea, maybe I should start doing that, so somebody in Pango Pango isn't duplicating my vids!!! :)
You negated your excellent video by drowning out your voice with that annoying blower. Hope I can find Part 2. 11FEB2018
Sorry about that, it was 100 degrees inside that day! Thanks for Watching!!!
look at this doggone old piece of shit gearbox!