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Confused owner of unknown CASE hybrid backhoe loader :)

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
Hi all,
Due to quite extensive earth works around my home - as inexperienced noob - I bought myself backhoe loader for $5k which supposed to be working and in good shape. Seller advertised it as 2000 Case backhoe. I tried it, and it worked.. to my little knowledge so I ordered transport and it arrived few weeks later.

Unfortunatelly shortly after arrival, it started to have issues. It leaked all over radiator and engine with brown oil/coolant mixture.. Which was not a good sign. So I started digging. Half of serial number plates was missing, engine turned to be 188D... and then it was going downhill ;)

Seller vanished, and I started fixing stuff in hope of actually using my investment so I started with leaking radiator and oil-coolant mixture. (to give some background - I've rebuilt few cars, and mitsubishi v6 engines, so I knew something about mechanics and hydraulics before i decided to disect muy CASE frankenstein)

I removed front cover which was plastic imitation of newer grill, and underneath i found old one.. much older.
power steering hydraulic pistons started to leak like crazy so I ordered service to pick them up and refurbish it.
When serviceman arrived few days later i was not able to crank the engine.. it was stalled.. Battery was good, guy was not able to move it forward only backward to some degree - something was blocking valves.. Having in mind oil leaks in radiator, Guy suggested to remove engine head and check for blown gasket. That was a mistake.

When we finally removed the head (without removing front cover and even fan assembly..) , seal was looking pristine. Even too good for such an old engine.. and since mixture of oil and cooland flooded cylinders i was thinking that i actually found a problem but it might be due to crack in the cylinder head...

After bringing head to workshop which tried to extort around 500$ for checking for leaks without guarantee with head delivered cleaned and prepared... Idecided that there must be something other that i can try, so I went back to inspection.

To my supprise head was fine, no cracks, no problems with sealing or valve leaks. And after some thought i realized that in few days before service guy arrived there was some substantial rainstorm.. And exhaust pipe of this machine was replaced with car silencer with missing top cap... yeah - water in exhaust valves..

Lesson learned, so I set up small white marketplace tent to shield it from rain,and started to put head back, applied new gasket.. and at that moment I realized there was some seal on the side of the head.. to water pump.

Probably the more experienced of you will start smiling right now.

It looked like overgrinded quest from badly written rpg game... To remove pump, one need to remove radiator, To remove radiator you need to remove radiator heat exchanger lines.. (at this point i realized that i was searching for leak in wrong place...) to do that you need to remove hydraulic scoop hoses, and the hydraulic pump, and then rem,ove al the dirt and grease on engine cover...

And then i realized that it was all one big chunk of metal.. - 188D first gen.

removed hydraulic pump (branded cessna ? aircraft hydraulic pump with some adapter?) removed hoses, radiator that happened to look like swiss cheese, fan assembly, then fuel pump cover, then gears.. with pump shaft ... so fuel started to flow into engine.... (yeah i was able to change oil already.. ) and after a lot of unscrewing i found out that i need to remove pulley. Searched for the way to do it.. and found out that i need to unscrew it from inside using half inch slot..

After a day of cursed effort I started to check if pulley can actually be removed through space between frame and engine shaft.. And it was not possible.. One need to actualy remove engine from the frame...

There is a meme that nicelly describes how I felt that day...

Anyhow, I gave up, cleaned everything up, started to put everything back together, replaced all seals with newly crafted ones (I bought big sheet of sealant to carve out new ones) and decided tha ti will slide new coolant pump seal somehow while inserting head.

Ordered new gasket, and called a friend to assist with seconf pair of hands. After some struggle and few broken seals we were able to do it. I soldered new pipe onto radiator to cool transmission oil, soldered up radiarot (mostly) , replaced filters and oils and finally after almost two months since it was last running engine was ready to test.

Next day I decided to test it, forgetting that i left my fuel tank valve open and most of diesel went into engine oil... The best part was that I Haven't mounted neither intake mainfold nor valver cover to be able to adjust spacing after few revolutions..

The next thing was somewhat scarry and funny - tent turned black with smoke, i was blinded by black oil/diesel mixture sprinkling from cam rods channels, and engine was slowly revving up chuckling on too much "fuel" flowing through intake valve holes. :D

I actually regret not filming it.. Finally after few seconds of panic i was able to put some glowes and cleaning fabric into intake valves and choke engine enough to stop it.

After swaping the oil, and some more cleaning (it is still somewhat dirty :D) engine nicelly started and i was ready to do some testing. My friend came along to show me few tricks he learned while he was working as excavator operator, so learning was quite smooth.

And since then i rebuild broken power steering cylinder (i put 18mm rod instead of inch-based ones that are virtually unavailable in EU) and i learned how to fix power hydraulics. I have not yet opened gearboxes or other parts except engine, just replaced filters and oils.

Now i'm facing issues with shuttle transmision (forward/reverse) kind of being weakewr and weaker and slipping a lot..

Any ideas ? :)
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
Here are some more pictures :)

I don't even know what kind of Case backhoe it is.. Hybrid of some kind? It had french plates.. partly.

20200729_173502.jpg

20200729_173454.jpg
20200725_132312.jpg

20200727_103016.jpg
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
@petepilot - that was my impression. I'll make few more photos today to show back of it, and current looks. I replaced original air filter with Mitsubishi sigma one to somewhat seal engine cover and provide better air filtration. I replaced almost all wiring and installed new gauges, (some of them are still in transit) so i finally have idea what is going on with engine temperatures and pressures. Yesterday one of pressure lines popped so i replaced remaining old hosses with new ones. (pretty cheap to replace here - around 25$ - just giving old ones as example and they redo new ones on the spot) now my biggest questionmark is transmission.

It sounds while driving like there was weared / broken bearing somewhere or really worn teeth. And itt does not seem to drive well.
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
Few more photos from today :)

Changed hydraulic oil and filter (filter changed second time) .
20200904_175630.jpg

gauges when running on idle - i think it is good
20200904_184856.jpg

and this is video made just after engine suprise ;)
 

thepumpguysc

Senior Member
Joined
Mar 18, 2010
Messages
7,537
Location
Sunny South Carolina
Occupation
Master Inj.Pump rebuilder
If u took the inj. pump drive shaft out thru the front cover w the gear attached, how did u get it back in without rolling the drive shaft seal.?? U better check the dip stick again..
If u get me the # off the inj, pump tag, I’ll tell u whatcha got..
BTW... did u happen to stick your fingers into the front of the inj pump while the drive shaft was out.??
Did u feel any grooves.?? If YES, u had better keep an eye out for fuel in the oil..
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
I had to work it out after watchiung few videos on youtube, but i did it slowly. First time i thought it is going too hard and indeed it started to deform seal, but later i figured out if i wobble it a bit and then just turn around so that it has better way inside it went ok. It took me some time though. I'll make pictures of the injector pump tommorow.
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
here it is ;)

20200911_160557.jpg

btw- where to check if oil level is ok?

I put there around 15l of UTTO oil, and it works ok, oil is clean. it sounds like it was sucking air - kind of shhhh sound comning from shuttle drive while driving anbd it is sluggish even after warmup.
 
Last edited:

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
This much i knew already :p is there any manual on how to check proper level on shuttle transmission? - on idle - stopped, or engine off?
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
i put there 14l utto and 1l maxlife ATF from valvoline. Works ok - for 580B.
 

Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
12,538
Location
Canada
A 2000 Case backhoe for 5K should have been a red flag. Cessna made hydraulics for equipment. Hope it doesn't cost a fortune to fix everything.
 

funwithfuel

Senior Member
Joined
Mar 7, 2017
Messages
5,600
Location
Will county Illinois
Occupation
Mechanic
A very late welcome, sorry you're having such a bad experience. If anyone can get you straightened out, its these guys. Good luck moving forward.
 

Bajtec

Member
Joined
Aug 13, 2020
Messages
19
Location
Poland
Occupation
IT Architect
So it seems i was able to make it work after all - and after initial set of earth works done I'm selling it to some more fortunate owner for $6k ;) It seems that I'm going to buy 580 K or 580 G for $9k which seems much more modern and more capable especially due to 4x4 drive and far better overal shape.
Thank you all for all the help!
20210323_092845.jpg
 

Welder Dave

Senior Member
Joined
Oct 11, 2014
Messages
12,538
Location
Canada
I don't think the machine is anywhere close to a 2000 model. I think the cab is some kind of aftermarket deal or homemade. The 2 seats and offset backhoe controls is very interesting.
 

old-iron-habit

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Nov 22, 2012
Messages
4,233
Location
Moose Lake, MN
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Retired Cons't. Supt./Hospitals
Bajtec, I give you a double thumbs up for sticking with it and getting it to work after going through that hell. And still having a positive outlook after all that. Maybe it would be a good idea to get a serial number off the next one before you seal the deal. Post it on a new thread in the backhoe section. More than one of the experts on here will be able to tell you the year and what the pro's and con's are for the machine. Good luck. I really like your attitude!
 
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