roger_scotty
Gold Member
EFC, pardon me while I get off this high horse; I think the altitude is giving me a nosebleed... 
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.2210D Front End
- Thread starter vongiese
- Start date
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EFC
Veteran Member
Did not mean to offend I knew you would disagree but that is not why I posted the reply. I was just posting for peoples general knowledge. I took the answer from my mechanics handbook so what do you want me to say.
roger_scotty
Gold Member
No offense taken. Hopefully we did accomplish something educational and showed that there is more than one way to consider these mechanical things.
The good news is that in the midst of our tangle, Mike got his reduction housing back together and is now pleased with the endplay.
Mike, changing to a different gear set now, how does the rotation feel when you rotate the output flange where the wheel mounts? It should rotate smoothly without binding and theoretically have just a tiny bit of slop rotationally which is play in the gear engagement. Some older ones that have been used hard in 4wd (like mine) have quite a bit of slop there. THe important thing is that it rotates smoothly without binding.
The good news is that in the midst of our tangle, Mike got his reduction housing back together and is now pleased with the endplay.
Mike, changing to a different gear set now, how does the rotation feel when you rotate the output flange where the wheel mounts? It should rotate smoothly without binding and theoretically have just a tiny bit of slop rotationally which is play in the gear engagement. Some older ones that have been used hard in 4wd (like mine) have quite a bit of slop there. THe important thing is that it rotates smoothly without binding.
OP
vongiese
Silver Member
- Joined
- Mar 29, 2002
- Messages
- 165
- Location
- NW Montana
- Tractor
- Yanmar 2210D, Sany SY35 Excavator, Kubota 4060LE,
Roger - rotation feels good - seems to turm relatively smoothly - can feel the gears but it does not bind. I did not notice any rotational play, but maybe that is a result of not using a gasket? I'll take a good look at it again before I put it together and I may order some gaskets.
Thanks again for your invaluable advice.
Thanks again for your invaluable advice.
EFC
Veteran Member
GOOD, I agree!
roger_scotty
Gold Member
Obviously the big danger here is that the ring and pinion will "bottom out".
We know that the original gasket is relatively thick, so it is going to have some shim effect. However - as EFC says - it does compress an unknown amount so we can't really call it a shim even though we know it does do something to the gear engagement. We also know that Yanmar originally set that engagement up to have very little play.
I'm thinking that if it rotates smoothly then you might have gotten lucky and that the total wear in the system is enough to give working clearance. Of course if that is true and you do put a new gasket in, then you will have a large amount of slop there. Better too much than too little. This question of how normal wear is affecting the system is the very one that every mechanic asks himself with every part all day long in every rebuild job.
Actually, we are lucky with the Yanmar front end. There are lots of places where the various clearances from wear and assembly were designed to be measured and adjusted with hard metal shims. Designing something with that degree of adjustability adds considerably to the cost of the product. It is the sort of thing that was common manufacturing practive years ago, but is rarely seen in products today. The fact that Yanmar made tractors with a design philosophy shaped around durability and repairability has a lot to do with their continued popularity.
We know that the original gasket is relatively thick, so it is going to have some shim effect. However - as EFC says - it does compress an unknown amount so we can't really call it a shim even though we know it does do something to the gear engagement. We also know that Yanmar originally set that engagement up to have very little play.
I'm thinking that if it rotates smoothly then you might have gotten lucky and that the total wear in the system is enough to give working clearance. Of course if that is true and you do put a new gasket in, then you will have a large amount of slop there. Better too much than too little. This question of how normal wear is affecting the system is the very one that every mechanic asks himself with every part all day long in every rebuild job.
Actually, we are lucky with the Yanmar front end. There are lots of places where the various clearances from wear and assembly were designed to be measured and adjusted with hard metal shims. Designing something with that degree of adjustability adds considerably to the cost of the product. It is the sort of thing that was common manufacturing practive years ago, but is rarely seen in products today. The fact that Yanmar made tractors with a design philosophy shaped around durability and repairability has a lot to do with their continued popularity.
OP
vongiese
Silver Member
- Joined
- Mar 29, 2002
- Messages
- 165
- Location
- NW Montana
- Tractor
- Yanmar 2210D, Sany SY35 Excavator, Kubota 4060LE,
I checked the rotational play, and I can deduct just a tiny bit (engineering term) of play. Of course i can't tell where it's coming from, but has to be on at least one of the gear pairs.
Do the american Yanmar service manuals talk about tolerances and shim placement?
Do the american Yanmar service manuals talk about tolerances and shim placement?
roger_scotty
Gold Member
Yes, and many of the manuals seem similar. For example, the YM220/D, YM226/D, and 276/D all use a very similar front axle if not the same one.
