Problem removing B7100 HST engine

[Cryptohorse]

Got a blown piston which I tried to get at via the oil pan without success.

I'm now trying to pull the engine out the normal way not by splitting the tractor but by disconnecting everything attached to it and then lifting it out with a block and tackle so it can be worked on a workshop bench.

All 16 engine bolts removed plus all clutch bolts. Front drive shaft disconnected plus all hydraulic pipes.

Tried lifting with bock and tackle and there still seems to be something connecting the engine to the front axle plus the clutch seems reluctant to separate cleanly. There is a gap of about a quarter inch but worried about too much force needed which might break something.

Does anyone have a drawing of all the engine connection points plus whatever might stop the clutch from separating.

I feel that I'm only one bolt away from getting it out but which bolt and where is the problem.

 

[Mountainman]

With all 16 frame bolts removed and hydraulic lines removed the frame and axle should seperate. Sometimes the frame is on there snug and takes some extra force and sweet talking. Seperating the engine from the clutch housing it is easy to get the propeller shaft bound up in the clutch. Just try to keep it coming off straight as possible and work it apart. Sometimes pressing the clutch pedal while prying apart helps

 

[GreensvilleJay]

general comment,never done a B7100
1) engine needs to slide forward INLINE with tranny half. Any 'tilt' up,down, left ,right WILL 'bind' the two and be a problem

2) all support needs to be solid wood blocks NOT 'cinder ' blocks

3) once you have the gap, 2 same prybars at 9 and 3 oclock, should be able to move engine 1/2 away from tranny half

4) if engine 1/2 is moved with front axle, block steering knuckles from turning....BTDT...NOT 'fun'.

go slow, be SAFE, LOOK from all sides.... 2nd pair of hands helps....

 

[Cryptohorse]

general comment,never done a B7100
1) engine needs to slide forward INLINE with tranny half. Any 'tilt' up,down, left ,right WILL 'bind' the two and be a problem

2) all support needs to be solid wood blocks NOT 'cinder ' blocks

3) once you have the gap, 2 same prybars at 9 and 3 oclock, should be able to move engine 1/2 away from tranny half

4) if engine 1/2 is moved with front axle, block steering knuckles from turning....BTDT...NOT 'fun'.

go slow, be SAFE, LOOK from all sides.... 2nd pair of hands helps....

I think my problem might be that I have the engine secured vertically by the block and tackle for fear that it will fall through the frame and hit the concrete. From what you are saying the frame will prevent the engine from falling but will allow it to slide towards the front of the tractor.

However if I have any lift on the engine that will put it out of alignment with the clutch and transmission and "bind" them together. At present I have a half inch gap between engine and clutch at the top but the bottom is only a slight crack.

So would I be best advised to release all lift from the block and tackle in order to make sure that engine and clutch are perfectly aligned?

 

[North Idaho Wolfman]

Sorry but you are going about this all wrong!
I have done quite a few of these.
You can not remove the motor with the front frame in the way.

The easiest and safest way to remove the engine is like this:
There is a few differences between the HST and the DT versions.

Disconnect the battery
Remove sides and hood
Leave the engine attached to the clutch housing
Block the clutch housing up on the flat just behind the clutch.
(Use a floor Jack with handle pointed out the back if you will need to roll the back instead of pulling the motor forward.)
Remove the suction line and the pressure line off the Hydraulic pump:
Remove the front propeller shaft
Remove the steering of the steering box.
Remove the radiator and the radiator hoses.
Remove the bolts attaching the motor to the frame.
Remove anything attaching the motor to the frame.
Then roll the front frame out from under the engine
Use whatever you want to support the engine.
Now unbolt the engine and it pull it forward or roll the rear back away from the engine.

 

[North Idaho Wolfman]

With an HST you will also need to remove the Hydraulic cooler lines:

 

[Cryptohorse]

I have actually dismantled most of the tractor so many of the tasks you describe are done already.

A few questions if I may.

What do you call the frame and how is it possible to roll it out from under the engine?

If you do this :-
"Remove the bolts attaching the motor to the frame.
Remove anything attaching the motor to the frame. "

What bolts do you remove at the end when you say :-
"Now unbolt the engine and it pull it forward or roll the rear back away from the engine."