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 1975 MTD 990 Farm King

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Dave.MTD
Murraymountain
RockeyDA
diddie
TheBeal
SebastianAlbrecht
Crazy_Carl
mrshaft696
MightyRaze
prancstaman
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Double W Cross Ranch
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RockeyDA
Monkey Wrench
Monkey Wrench


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1975 MTD 990 Farm King - Page 5 Empty
PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeTue May 07, 2019 12:50 pm

you should do somthing like i did with dinky, put your fave flag on the hood.
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RockeyDA
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeTue May 07, 2019 12:52 pm

you know what? i thinki might to the PA flag on the mud train on its repaint.
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Double W Cross Ranch
DimeWeld
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat May 18, 2019 1:42 pm

So I did this a few weeks ago and just never updated the thread. I pulled the lift cylinder apart and changed out the seals, they were all very worn.

1975 MTD 990 Farm King - Page 5 20190511

It no longer leaks from the seals, it leaks from where the ram goes in the cylinder, where there is just a friction seal. The way they made these 990s, the head does not come off the ram. It just doesn't. Therefore, you cannot fix the worn friction seal. I've been asking around in some MTD 990 groups on facebook, and they all say I need an entire new cylinder. They don't make them anymore and you can't buy parts for it either, and a different style one would cost me between $600-$1000, and the I would have to retro fit it myself. I can't just deal with the leak because it's literally a stream of oil, and if this pump gets low on oil it'll blow up. Basically, I'm screwed.

The only way I can fix this issue would be to get some different hydraulic lines and run them back to itself, and bypass the cylinder. But then what would I have? A big hydrostatic tractor that goes like 6 mph. Nothing special at all, and the whole reason I got this tractor was because of it's hydraulic 3 point, and there is no way I can cover the cost of a new lift cylinder.

But I don't regret buying it. Once I get over the initial sadness of not being able to use this tractor...well the engine will fit in the John Deere...but I don't know if I quite want to do that. Maybe someday I can get some money together and fix the hydraulics, but for now, there is no way. And it really doesn't make sense to just have 2 mediocre tractors when I could swap this engine in to the John Deere and have one really awesome one.

This isn't set into stone yet, but it's looking like this build is going to come to s screeching halt.
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AllisKidD21
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat May 18, 2019 6:22 pm

Oh I wouldn't go yanking the engine out of it, nothing worse to see than a good old tractor with no heart....

She's a workhorse, with or without the lift cylinder. If it were me I would run a bypass line and use 'er that way for the time being.

I'm a diehard classic tractor guy though, so my opinion might be a bit bias. lol!

_______________________________________________
"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford LGT 125 & 145 - White 1650 Yard Boss
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Murraymountain
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Murraymountain

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat May 18, 2019 6:25 pm

If for nothing else, use it to pull cut down or fallen trees. I need a strong heavy tractor to pull the 3 that just fell. My little Murray just ain't strong or heavy enough for the job.
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat May 18, 2019 6:35 pm

@AllisKidD21 wrote:
Oh I wouldn't go yanking the engine out of it, nothing worse to see than a good old tractor with no heart....

She's a workhorse, with or without the lift cylinder. If it were me I would run a bypass line and use 'er that way for the time being.

I'm a diehard classic tractor guy though, so my opinion might be a bit bias. lol!

Yeah, I dunno, I guess I won't do the swap. Just not sure what do to do to it from here.

@Murraymountain wrote:
If for nothing else, use it to pull cut down or fallen trees. I need a strong heavy tractor to pull the 3 that just fell. My little Murray just ain't strong or heavy enough for the job.

I was going to get a rear blade for the 3 point, put it on backwards, and use it to push brush around in revers, but that ain't happening. The 110 can haul brush, and my Ford Explorer can yank stumps out of the ground (seriously, no I don't have video, and I know you're not going to believe me). But it still will be a handy tank to have around.
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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1975 MTD 990 Farm King - Page 5 Empty
PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSun May 19, 2019 2:21 pm

Okay, so I've kinda decided I'm going to get this lift cyinder working or not use this tractor at all. The whole point of owning it is the 3 point hitch for plowing, and the 50" cut shaft-drive deck for mowing, otherwise it's just another slow tractor that happens to have massive tires, weighs half a ton, and costs money to have around. I'm asking around and trying to figure out if there is in fact a way to put a physical seal there, I'll let ya'll know as soon as I come up with a plan.
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed May 29, 2019 11:44 am

Okay so I pulled the cylinder apart again, and I'm not ever going to believe anything they tell me on Facebook again. I wire wheeled the ends off, and there were threads under there somewhere. I clamped it in a vice and managed to pull it apart.

1975 MTD 990 Farm King - Page 5 20190512

And I put it back together and it no longer leaks from the ram! 1975 MTD 990 Farm King - Page 5 2240318088



It does leak the least little bit from the fittings, so I took it back off and tightened the fittings down, but it still leaks. So even though some people are going to have a come apart, I'm going to put some RTV on the threads of the fittings to seal it off a bit, because that's the only solution.

Right now, I figured out why my steering is almost impossible to use, the front spindles are 90% seized. I have the front end jacked up without tires soaking in penatrating oil, then once I get them off I'm going to wire wheel them off, file down the inside a bit, and then put a ton of grease in there and put it back together, good as new.



That's a video from over a month ago I just got around to uploading today.

Anywho, lemme know what you think.
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RockeyDA
Monkey Wrench
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RockeyDA

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed May 29, 2019 12:26 pm

are you running without your guvnor?
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed May 29, 2019 12:35 pm

Not really, but I think I have the gov hooked up wrong. For one thing, down is faster and up is slower, but it also doesn't seem to stop me anywhere. For the time being I'm just being careful, LOL.
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RockeyDA
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RockeyDA

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed May 29, 2019 12:51 pm

to me it sounsed like your RPMs were all over the place. as long as it sounds right on full throttle your good. and you can always look at the video i made or the pic of the 12hp govnor i posted in discord.
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Double W Cross Ranch
DimeWeld
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed May 29, 2019 1:05 pm

Well my RPMs were all over tge place but I was controlling them. I am going to make a video later on the whole machine more indepth.
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat Jun 01, 2019 7:34 pm

Okay, so today I managed to hammer the spindle out, then I ran a flap disk over it, put it back together, and now it steers beautifully. Also, the tiny leak on the lift cylinder appears to have fixed itself, so yay. Took her for a bit of a drive.

1975 MTD 990 Farm King - Page 5 61460410

I gotta say, this tractor looks pretty dang sweet. Also did a top speed test.

1975 MTD 990 Farm King - Page 5 61465210

9 mph is actually pretty good for a stock tractor. It does 5 mph in reverse, which is kinda scary actually lol, and in low range it's about perfect for towing.

I also have the sad announcement to make that the deck and the 3 spindles are all completely shot, Mr. Rust got to them before I did. Sad I was really looking forward to mowing with this thing. Oh well. I'm not going to take any of the mowing stuff off it, hopefully someone will sell me another deck someday. Sad
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RockeyDA
Monkey Wrench
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RockeyDA

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSat Jun 01, 2019 9:33 pm

cant you rig somthing up? i never worked on a deck but i would assume you just replace some bearings right?
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Murraymountain
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSun Jun 02, 2019 8:29 am

Once the rust really starts to get to them, they're pretty much gone. If he really, really tried, he might be able to do it, but I don't think he wants a rednecked deck.
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSun Jun 02, 2019 4:00 pm

@RockeyDA wrote:
cant you rig somthing up? i never worked on a deck but i would assume you just replace some bearings right?

They don't sell spindles anymore, and the spindles are completely rusted through.

@SebastianAlbrecht wrote:
if that deck inst 100% paper U can still weld something together & patch holes up & stuff, & if U really want to get it going U could just buy AYP Spindles & bolt them in & make a belt system work!

"U can still weld something together" Actually, I can't. I'm sure you know I don't have a welder. The Craftsman style spindles are about 8" from blade mount to pulley, the MTD spindles are about 4". If I did that, the belt would be way out of alignment, and the deck probably wouldn't fit under the tractor. Also Craftsman spindles are super weak.

1975 MTD 990 Farm King - Page 5 Spindl10

@Murraymountain wrote:
Once the rust really starts to get to them, they're pretty much gone. If he really, really tried, he might be able to do it, but I don't think he wants a rednecked deck.

Yeah, I don't really, and I have other ideas. We shall see if I end up implementing them.
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DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeSun Jun 02, 2019 10:47 pm

1975 MTD 990 Farm King - Page 5 20190611
1975 MTD 990 Farm King - Page 5 20190610

Did some work to her today, she did fine. This hydro is really interesting, the way it's a smooth ride with no jerks or anything. I kinda like it. Also, it doesn't have brakes but it doesn't necessarily need them, because as soon as you pull the drive lever to "neutral" it stops.
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Murraymountain
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeMon Jun 03, 2019 9:16 am

Almost all hydros I've dealt with do that. My Murray is the only one that doesn't.
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DimeWeld
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeMon Jun 03, 2019 10:32 am

@Murraymountain wrote:
Almost all hydros I've dealt with do that. My Murray is the only one that doesn't.

Ah, okay.
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AllisKidD21
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeMon Jun 03, 2019 11:28 am

Yeah, that's sorta like an engine braking type of thing.

_______________________________________________
"This'll either wake you up or put you to sleep forever!"- Red Green         "Whatever you do you should do right, even if it's something wrong." - Hank Hill
     
      - MTD Off-Road Build
      - Ford LT 110 Off-Road Build
      - Craftsman GT 6000 Off-Road Build
       - Sears LT11 Rat Rod Build *2019 Build-Off Winner!*


  - Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford LGT 125 & 145 - White 1650 Yard Boss
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Double W Cross Ranch
DimeWeld
DimeWeld
Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeMon Jun 03, 2019 6:13 pm

@AllisKidD21 wrote:
Yeah, that's sorta like an engine braking type of thing.

Yeah, it doesn't pick up any speed going downhill which surprised me, lol.
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeTue Jun 04, 2019 9:11 am

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RockeyDA
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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeTue Jun 04, 2019 2:26 pm

yeah, thets why when the mud train stalls on a hill you see me yelling "OHHH S*** TURN THE WHEEL TURN THE WHEEL!"
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Double W Cross Ranch
DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeWed Jun 05, 2019 10:17 pm

@RockeyDA wrote:
yeah, thets why when the mud train stalls on a hill you see me yelling "OHHH S*** TURN THE WHEEL TURN THE WHEEL!"

Hahahaha

Sneekie Peekie....

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DimeWeld
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Double W Cross Ranch

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PostSubject: Re: 1975 MTD 990 Farm King   1975 MTD 990 Farm King - Page 5 Icon_minitimeThu Jun 06, 2019 11:17 am

Okay so I'm not going to clog this thread up with a bunch of stuff from this. If I have any issues with it I'll make another thread for it. It's a Swisher T60 Trail Mower. 60" cut, 3 blades. It came factory with electric start. It offsets or pulls straight behind your vehicle. You can pull it behind anything. It's basically a non-pto finish mower.

It did come with an engine, however it's not the factory engine. It's a flathead 400CC briggs. I'm probably going to put my 12.5 briggs on it because it's already converted to pull start and it runs great.

All the spindles turn, the idlers are good, the bearings in the wheels are good. Tires are all flat, but they hold air for a few minutes. I'm going to get tubes for them. Belts are in good shape, when you turn one blade the other 2 turn. This thing is in much better shape than it looks. I'm going to get the parts that I know I need today and I think I can have it going over the weekend. Wish me luck!!
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