I have a 7745 1985 since a year and had many diffrents troubles. But Yesterday night, I was plowing snow and a new noive apear. It is a air leak sound! but like the compressor noice, not equal. I'm trying to find if it is just a hose that broke or if it is directly the compressor? I never used the compressor and never engage it. the noice start by himself. Does somebody have any advices on where to search to solve the problem?
-
Hello.
In order to download file attachments or view image attachments in full size, you must be registered/logged in and have a level 2 member account.
No worry, its all for free!
For more details - click here.
zetor 7745 air compressor
- Thread starter zetor7745
- Start date
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
Indeed. a faulty head gasket can make a pfssht-pfssht-pfshht sound because compressed air escapes at every cylinder stroke. You should be able to feel warm air pulsing when the engine is running.
Your were right for my Gasket,
it is fix once again now.
But yesterday, I was plowing snow and I eard a noice of a metal part falling in other metal parts and my transmission totally LOCK.
I can not move my tractor more than 2 inchs forward and backward.
The towing wil come to take it tomorrow.
Have you any Idea about what it is?
it is fix once again now.
But yesterday, I was plowing snow and I eard a noice of a metal part falling in other metal parts and my transmission totally LOCK.
I can not move my tractor more than 2 inchs forward and backward.
The towing wil come to take it tomorrow.
Have you any Idea about what it is?
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
Does it move when you put the main gear lever in neutral ? Then its stuck in gear, if you select another it wont budge.
can you tow the tractor freely when you put the hi/low range in neutral ? Then a shift fork broke and fell inbetween the gear teeth. You can check that by taking the mid cab floor section out and taking the transmission cover off.
can you tow the tractor freely when you put the hi/low range in neutral ? Then a shift fork broke and fell inbetween the gear teeth. You can check that by taking the mid cab floor section out and taking the transmission cover off.
I put all the stick (speed and Hi/lo) in neutral and tryed to pull the tractor, but cannot move. There is something that lock the rear wheels (I unlock 4x4) I can make run the engine in neutral (speed and/or hi/lo) no problem no noise. I cans move the speed stick in every speed when I push the cluth paddle. The proble is when I want to release the clutch paddle, I fell that there is a very strong resist so I push the clutch again and put it neutral. I do not want to broke something else. Can it be the rear differential or is it still the fork in transmission?
Thanks for your Help
Thanks for your Help
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
Then it is in the rear axle. Sometimes the rivets holding the crown wheel to the diff housing shear off on the 7745. I think they use low head inner hex head bolts for field repair. Make sure it doesnt hit the oil tube when rotating.
Or a bearing is jammed. Could be a final drive as well, lift it and try rotate a wheel to see if the other turnopposite. If it does, its the crown/pinion. If not it can still be either diff or final drive.
Or a bearing is jammed. Could be a final drive as well, lift it and try rotate a wheel to see if the other turnopposite. If it does, its the crown/pinion. If not it can still be either diff or final drive.
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
Then it is in the rear axle. Sometimes the rivets holding the crown wheel to the diff housing shear off on the 7745. I think they use low head inner hex head bolts for field repair. Make sure it doesnt hit the oil tube when rotating.
Or a bearing is jammed. Could be a final drive as well, lift it and try rotate a wheel to see if the other turnopposite. If it does, its the crown/pinion. If not it can still be either diff or final drive.
Or a bearing is jammed. Could be a final drive as well, lift it and try rotate a wheel to see if the other turnopposite. If it does, its the crown/pinion. If not it can still be either diff or final drive.
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
If its the range lever shift fork you should be able to feel it when taking the arrester bolt out. ??
Theres only one definate way of finding out: take out the center section of the cab floor, then the gearbox cover (a dozen of M8 or M10 bolts on top and two M14 or M16 at the back, into the rear axle housing)
Anyways, it seems like the previous owner seriously abused your tractor...
Theres only one definate way of finding out: take out the center section of the cab floor, then the gearbox cover (a dozen of M8 or M10 bolts on top and two M14 or M16 at the back, into the rear axle housing)
Anyways, it seems like the previous owner seriously abused your tractor...
- Joined
- Feb 28, 2015
- Messages
- 7
- First name
- ScratchTheBear
Its not stuck in two gears is it? Its possible on most Zetors to get it in a forward and reverse gear at the same time...
