Help with transmission f16d

[SaskyBoy89]

Hi,
I have a f16d tractor was using it today and switched between reverse and 2nd and it kept going backwards.
If it try to put it in 1 or 3 it will stall out if i out in the 2nd spot stays reverse.
Is there a linkage between the pin the shift moves and a gear somwhere?
Any help sith a transmission diagram or manual would be awesome.
Thanks

 

[winston1]

I am not aware of an F16 manual but here is an F14/15, maybe some similarities. YANMAR F14 F15 PARTS MANUAL NPC-1464

 

[careyo63]

Tractor data says it's Gear! I have nothing on that setup with the shifter on the fender. I do show a YM F16D 4Wd. 19 Hp. 3 Cyl. But list it Gear Drive. The F1610D 19Hp. 3 Cyl. Power shift But the Shifter is on the Transmission between your legs. Nothing on my Org. parts for a F16D. Find a number on the Trans and try to Identify it?

 

[SaskyBoy89]

Yea just trying to figure out what the pins under the coger the levers acuatlly move. I opened up the top fo the trans cover and couldnt see much.
Going to drain all the fluid hoping i can see a gear and pry on it or somtbing. I will look for a transmission identification
Thanks

 

[SaskyBoy89]

Looks like that f14 manual does show the set up i am hopiny the shift fork didnt break off its either jammed or that happened as when it shifts the second which is on same side as reverse it stays in reverse but when going to 1 or 3 on differe t side it stalls out

 

[bmaverick]

I am not aware of an F16 manual but here is an F14/15, maybe some similarities. YANMAR F14 F15 PARTS MANUAL NPC-1464

Searching for the F16 manual online has been difficult. Much of the time the results are the F16 jet fighter. And to add more complexity, the F16 is related to the F18. And by then all you get is nothing but fighter jets!

I gave up.

The best way to search is for the engine manual. From there the Parts Manuals are a better bet.

The Yanmar F16 is a popular machine, yet so difficult to search on.

Now as a hint in the F series. The F16 is the early version and the F165 is the later version.

 

[bmaverick]

In the last post you will also see the FH16. It's an F16 with other options. When these go to the Gray Market and sent outside of Japan, these get badge as F16 models. When people need help, it's a bit confusing. The engine is still the same.

The FB16 uses the same engine found in the YM1601, YM1602, YM1610, YM1702, YM1720, YM1810, YB30, F15, YM220, YM226, and some Yanmar gensets. So Winstons' comparison will be a bit off F14, F15 not being the same.

Engine parts manuals for the 3T75 for those models could be used to help with working on a F16. Those can be found on the YTOG.

And even the 3T75HLE genset service overhaul manual in English is over there too. It should be 95% matching to the tractor engine.

 

[careyo63]

F-14 has the shifter on the fender. Interesting. Mentioned I was limited on info of the F series. TractorData.com Yanmar F14D tractor information also apparently.

 

[SaskyBoy89]

Well as expected the shift fork is broken, i was able to us a inspection camera to see and i can to the linkage which I noticed I cannot on the other side 1/3 shift fork. is splitting these tractors apart to get in there to replace this piece pretty self explanatory? any specials tools needed? I'm going to see if i can et the fork back together to get it going or find the replacement part.
thanks for any info i get.

 

[SaskyBoy89]

I got this far taking stuff off.
Can i break the tractor right here to access the transmisson? Does the clutch plate come with the back half?
I have a engine hoist i can borrow so will be using that to help remove this piece.
Thanks

 

[winston1]

Here is a video of a clutch change on a ym series. Yours will likely be a little different but this should be of some help to you. hoye clutch video - Search Videos

And written instructions. Yanmar Clutch Replacement

 

[winston1]

I'm not understanding where you are talking about splitting the tractor but normal procedure would be where the bell housing (clutch housing) bolts to the engine.

 

[SaskyBoy89]

I didnt want tk mess with bellhousing or any of the stuff close to m engine. I took apart the tractor here right in front of the transmission gearing and all the shafts that need to go either way were just in the bearings with no snap rings.
Was able to get my broken shift fork out. Now waiting to braze this piece back together unless anyone has one they want to sell me

 

[careyo63]

My Reverse fork was broken. With a stuck clutch 2 stage. On my Ford so I had to send it out. I'm thinking the Stuck clutch was the culprit. Then I broke it again! sure did! Weak brake with a load of wood in the bucket. Scrubbed reverse shifting. and the shop. It will stop on a dime now load in the bucket or not! Do you know how it or caused it to break? Think I would make sure there not another problem that caused it.

 

[winston1]

Have you been able to get a part number? Yanmar parts suppliers should be able to provide that for you if you. I think most all of them have access to parts manuals.

No idea what shift fork this is, says it is used on an F16. Used Shift Fork

 

[careyo63]

Like to see the shifter Itself. It would be a good start to find exactly what it is.

 

[5030]

It's after the fact but if that was mine, I would have given it a bath before doing anything simply because of all the filth falling into the cavities and causing accelerated wear inside.

You can weld that fork but you have to bevel the sides on both parts before welding it and multi pass (root pass and finish pass) the welds and preferably use a MIG with solid wire and shielding gas so long as the fork is cast steel.

If it's cast iron, all bets are off. It's possible to join cast iron parts but they have to be high temperature brazed, not welded

If you do weld it, you need to clamp it down securely and root pass one side and flip it and root pass the other side, then flip it again and finish pass and repeat and then grind off the excess welds to make the part level on both sides again.. If you aren't a competent welder with the proper equipment, send it to a weld shop and have them do it.

Looking at the part, it could be cast iron or cast steel and the only way to determine that would be to spark test it and why it broke like it did, there has to be mitigating circumstances like did you attempt to force it into gear or is the clearance insufficient to allow free movement?

Shift forks just don't break because, there has to be a reason why it failed in the first place. Just replacing it or welding it won't remedy the issue until you determine why it broke in the first place.

if it was mine and you want to repair it, I'd take it to a competent welding shop and have them do it. I do that sort of thing here all the time but I don't do it for free and neither will they (welding shop).

My 2 cents for what it's worth.

 

[SaskyBoy89]

Yea its pretty cold here that last little and was working in my un heated garage. I did lut the covers back on and give it a decent cleaning around the seem that i spilt it at. Havnt found anything yet as for a new part. I can weld pretty decently with stick and mig juat starting with tig. I do have some brazing rods at work that i can use with the oxy/act torch.
Pretty sure it broke as i had the snowblower on the back and tried to shift to 2nd and snow blower spinning a bit. All.i can think but its a clean break. If it breaks again it really wasnt all that much work to take apart to this point.
Anyone know of a usa tractor thats like the f16d with the shift on the fender like the f16d?
Thanks

 

[SaskyBoy89]

Here some more pictures if anyone wants yo see whats the gear transmission looks like.
The reverse gear deffently has some wear

 

[careyo63]

Fredricks importing is showing A PTO shifter fork SF-4555 For the F20 all the way to model FX435. They show the Shifter Fork for all the Trans. Gears for the YM series. The part # and my book is Super old!!! 15yrs. at least. My guess is they may have it?
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