B7100 Clutch Help

[BillCT]

I'm replacing the clutch on my B7100 and can't quite figure out how to get the throwout bearing out. It loooks like it might be pressed on the shaft but I can't tell.

Also, When I remove the flywheel to replace the pilot bushing I screwed up and didn't mark the flywheel to the crankshaft so I knew the right location to put it back. I just kinda figured there would be a locating pin or offset bolts on it. How the heck do I get things back in sync? I don't see any markes at all on the end of the crankshaft.

Thank you.

Bill

 

[76_Bronco]

I can't help you with your clutch problem, but I can share a link to a downloadable service manual for your B7100 http://www.kubotabooks.com/AutoInde...s/&AutoIndex=b43da0dcde0a6454875232ba2680486c

 

[BillCT]

Hi 76,

That's a great link, thanks allot. I do have the service manual but all it says is remove the throwout bearing. Not too much detail.

Thanks for the reply!

 

[BillCT]

I figured out the throwout bearing, but this flywheel alignment has me stumped. Seems like all the holes are the same didtance apart so it'll go on in any location.

 

[kubotasam]

Here is what my Kubota workshop manual has to say about mounting the flywheel

"To ease alignment of the crankshaft and the flywheel, bring the crank of one of the cylinders to TC (top dead center). Make sure of the flywheel TC, align it with the punch mark of the rear end plate, and set the flywheel."

Not sure if this will help, I have never had one this far apart so I can't speak from experience.

 

[kubotasam]

I found another section in the workshop manual that deals with this also.

"Trueness of crankshaft and flywheel. allowable limit .0059
It shows a picture of 2 dial indicators on the flywheel with it mounted to the engine. One is touching the face of the flywheel the other is touching the edge near the ring gear.
1. Set 2 dial gauges to the flywheel
2. Measure the radial and thrust directions by turning the flywheel slowly.
3. If the measurement exceeds the allowable limit loosen the flywheel and readjust."

I would assume it means you can index the flywheel to another location and measure again.-- Good luck

 

[kubotasam]

Page 16 of that downloadable I&T manual that Bronco linked to talks about checking runout and wobble. (the 2 dial indicators from my last post). Check it out.
Good luck

PS sorry for so many posts I just keep finding more stuff.

 

[birddogger]

Apparently it doesn't look like the holes are indexed but they are, one must be offset just enough.
From a previous "aw shucks,"
http://www.orangetractortalks.com/forums/showthread.php?t=1095&highlight=flywheel+alignment+holes

 

[birddogger]

OH! to avoid perhaps another "aw shucks" moment; do you have the clutch disc/pilot alignment tool, or reasonable facsimile? To align the disc on center with the pilot bearing so the input shaft can slide easily into position. I've fashioned them from dowel rods and even a broom handle that was the right diameter. A nub on the end to fit into the pilot bushing and a slip fit inside the clutch disc is all you need.

 

[kubotasam]

Apparently it doesn't look like the holes are indexed but they are, one must be offset just enough.
From a previous "aw shucks,"
http://www.orangetractortalks.com/forums/showthread.php?t=1095&highlight=flywheel+alignment+holes

I have to believe that Eserv is wrong. Both service manuals talk about spinning the flywheel to take care of runout and wobble.

 

[Rob]

flywheel will only fit on correctly one way, and the bolts will only fit correctly one way, if in doubt loose fit in each hole first, if all five they wont screw in by hand all the way in its not the right position.
If in doubt, piston 1 on cylinder one, should be at TDC and the 1TDC mark on the flywheel lined up iwth the dot mark on the backplate.
Trust me, if you have to force them bolts , its not correct, try next alinement.

As for the release bearing, it comes out from the bellhousing side, there is a greese nipple yo need to remove, and a bolt with spring also, you can see from under the chassis where they are, it just pulls out.

rob

 

[birddogger]

I would assume it means you can index the flywheel to another location and measure again.

I would assume it means fiddle around with the slack in the bolt holes. Otherwise the TDC mark would be meaningless.

 

[BillCT]

Apparently it doesn't look like the holes are indexed but they are, one must be offset just enough.
From a previous "aw shucks,"
http://www.orangetractortalks.com/forums/showthread.php?t=1095&highlight=flywheel+alignment+holes

Hi,

Yes actually that's correct, it was VERY hard to tell they were spaced differently they're not off by much, in some cases just off enough so the screw won't thread right in.

I did try the TDC technique Rob but I was just looking at the rocker arms and it was hard to tell exactly where TDC was. Guess I should have pulled an injector to make sure. I'm sure that would have worked.

That darn flywheel is heavy and trying to get it on and turn it ever so slightly to line up the holes is a bear. I finally took the locking ring and put it up against the crankshaft turning it until I found a sequence that would match. I marked one of the holes in the ring and the corresponding hole in the crank with a magic marker. Then I placed the ring on the flywheel and did the same thing, when I found the sequence that would match I marked the same corresponding hole in the flywheel. Now you can just install the flywheel and match up the marked holes.

Thanks for the info on the throwout bearing, I got it out. Pressed off the old one and installed a new one this morning.

I do have an alignment tool I made up also.

Thanks for all the replies everyone! I'm hoping to get this joined back together tonight or tomorrow.


Bill

 

[kubotasam]

Glad you got it straighten out. Sorry the info I got from the service manuals was not correct. I guess we all learned a lesson or two here.

 

[BillCT]

Glad you got it straighten out. Sorry the info I got from the service manuals was not correct. I guess we all learned a lesson or two here.

Heck... no problem at all. I appreciate the replies very much. I'm new at this tractor stuff and especially the old one I have so all info is good info.

I tried to wheel the front end back on the rear end last night by myself and had a heck of a time trying to push the floor jack and keep the engine from tipping over. My friend is coming over tonight to give me a hand so maybe we can get it mated up.

Take care

 

[davemskinner]

Hi 76,

I do have the service manual but all it says is remove the throwout bearing. Not too much detail.

I find that pretty typical of the Kubota manuals. They tell you what to do - not how! But then, they are probably written as reminders for the techs rather than an instruction manual for us owners.