D3B 23Y needed attention

asleiman · Sep 5, 2019

I have a D3 B , it sat for a couple years , I had my knee replaced during which time all my equipment suffred
I got back and started the machine , but would not move.
today I took the steering clutches covers to loosen the brake pads. in the mean time my real concern is after I topped the radiator now I have water in the engine oil.
It could many thing but I am trying to narrow it to a few possibilities. oil cooler, or head gasket , The machine is old but only 3000 hrs

Any help would be appreciated

grandpa · Sep 5, 2019

Water pump?

asleiman · Sep 5, 2019

Hi Grandpa,
I hope you right , but how to check it for water pump damage. a local mechanic friend mentioned the pump.
according to cat Manual they mention possible problem : oil cooler , head gasket . will also need to change the front seal

Welder Dave · Sep 6, 2019

A local repair shop had a D3B sitting in their yard a few years ago that the owner basically abandoned. Not sure if he couldn't afford the repairs or what was going on but they couldn't get ahold of him. Anyway they said they had to start it every so often to circulate the coolant so something wouldn't corrode. They found out the hard way. I can't remember exactly what though. I think something to do with where the rad hose connects on the engine or maybe the water pump. They said there were a lot of hoops to go through before they could sell it. Maybe from sitting there can be other corrosion going on? Drain the rad and drain the oil and hopefully no other damage.

Wilson892 · Sep 6, 2019

Is it water from condensation or antifreeze from the engine.

John

asleiman · Sep 6, 2019

Hi Wilson , I think it is more than condensation . I added 1 gallon anti freeze and 1 gal of water. engine oil is gung gray and way past the mark on the dipstick. of course there is condensation .
I would like to diagnose before doing a bunch of work

kshansen · Sep 6, 2019

Is there by chance room enough to get oil pan off if you drop the belly pans? That way you could stand a chance of looking up inside and see where the coolant is coming from, assuming it is coolant and not just some condensation.

Might want to just start by draining the oil and fill radiator and see if you are getting coolant out the oil drain hole. Also most if not all water pump have a "weep hole" that should let any leak drain to the outside. But we all know should and will are two different things! Try poking around the water pump to see if you can find and clean out the "weep hole".

Welder Dave · Sep 6, 2019

If it's like a 931B the oil pan won't come off because the cross member for the track frames is in the way. My 931B water pump had a weep hole. 2 gallons is a lot. Wish I could remember what they said happens when they sit for too long. I think you have something more serious going on.

Dave Neubert · Sep 7, 2019

D3 the should have a 3204 so it don't have a gear driven water pump and it don't have sleeves so I would check the oil cooler although the oil pressure is higher then the water pressure it should put oil in the radiator so head gasket is likely unless it froze and busted

asleiman · Sep 7, 2019

Hello Dave and evening to you all
I agree with you Dave regarding the water pump and the oil cooler. Cat Dealer service manager also agree in short that mostly likely condensation. he also had comment about some seal will shrink over time , then will seal after it start and get hot. I filled the Radiator with water last it did not go down or change color.
So My plan is to change the oil. I just drained the it and took the oil filter . no question it is nasty looking I will leave to drain all night. I put a 5 gall on bucket under it I got about 3 gal in it and had flat one as well may 1 1/2 gal .
I need to flush it I know it is not a good idea to put diesel thru the engine , there must be something I can use to flush it

asleiman · Sep 17, 2019

Hello all ,
Just to update for a week now I worked on the D3 B . Mainly fluid change and filters , screens etc.
Today I started ran it for a while for the engine to warm in 95 deg Alabama Fall. it did fine, oil is good with indication of water.

I also rebuild all Hydraulic cylinder that also was needed .
the steering is not good . I have loosed the break pad to make sure it was not stuck.. part of the week was spend into the steering clutch compartment to make sure the brake pad was loose and no oil in the compartment . that is also good. These are new clutches
I will this week make sure all rod are adjusted. Welcome any suggestion

Welder Dave · Sep 17, 2019

Did you check the rollers on the cams that operate the steering clutch valves? Common to get flat spots on them and won't let steering clutches completely engage.

asleiman · Sep 18, 2019

Dave ,
a while back I rebuild steering clutches and fixed the cam the roller wore a groove on it. I will check it

asleiman · Sep 22, 2019

will have to rebuild the track adjuster , it is not holding tension
Can it be done with out breaking the track apart

Welder Dave · Sep 22, 2019

Not if you have to take it apart to put new seals in.

asleiman · Sep 23, 2019

I took the UC apart and removed the Yoke , the seal were aged and dry, obviously needed to changed, Also found one of those ring is cracked. I think it have to be repaced

asleiman · Sep 24, 2019

here the track adjuster ,track apart, sealscare ready to go, waiting for one part

Nige · Sep 24, 2019

Do yourself a favour and throw a chain or a ratchet strap over the spring please. You do realize that the only thing holding the spring from flying out and killing someone are those two stops that I've circled don't you..?
They don't call them Death Springs for nothing ……….

dozr · Sep 24, 2019

that is right Nige, and i went and looked at 3 or 4 loaders with 3204 and they are bad to pit thought block, they are not sleed blocks.

Welder Dave · Sep 24, 2019

Huh??? Do you mean sleeved? 3204 has to be bored but if the bore is too bad can be bored oversize and a sleeve installed.

D3B 23Y needed attention

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