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Ford 3000 engine mystery!

S

Savinsam

Member
I"m doing maintenance on our engine club"s 3000/with hydraulic front loader. We checked the engine oil & it was way below "add" line. Added oil to 3/4 full. Worked the tractor about 2 hours & engine oil disappeared! No engine leaks & no blue smoke. Engine runs fine. HOWEVER, hydraulics on loader quit working. Can engine oil somehow be getting into hydraulic system & messing it up? We"re baffled!
 
engine oil will not damage the hyd system.. however...

do you have the loader run off a front pump and loader seperate supply tank or run off tractor hyds.

check each sump and report back.

park on cardboard too.
 
Indeed it can. The hydraulic pump (at least in the older models) uses engine oil for lubrication. There is a seal between 'oil' side of the pump and the 'hydraulic' side. If that seal is bad, oil is forced under pressure into the hydraulic fluid.

What I did to verify this was drain my diff case up to the bottom of the check plug hole, than added a known amount of oil. I used 2 quarts. Then when the dip stick told me I had used up those 2 quarts (in other words, the level prior to adding), I opened up the check plug hole to see how much came out. In my case, it was 2 quarts.

You can buy a rebuild kit for these that contains the seal or just the seal itself.

Now, I guess the question is, would this affect the front loader?
 
Alright, now I'm very suspicious. The loader runs off of the tractor sump, not an external tank, nor off of the back-end 3 point sump.' But, just recently we had an 'expert hydraulic guy' replace the hydraulic pump because the loader quit working. The engine oil disappearance happened shortly afterwards. Is the seal kit/seal that you're referring to probably the one that we had replaced with the pump?
 
um.. clarify.

you said the laoder runs off the tractor sump.

but then you said it does not use the back end / 3pt sump.

clarify that.

the rear end and hyds are ommon on that tractor.

it either has a front stinger pump off the crank shaft snout and has it's own on loader sump. or it is run off the rear , side, engine mounted pump that uses hyds off the top cover.

what do YOU have?
 
Okay, sorry about that. I'm not real familiar with this tractor, and use it only on occasion. The loader I'm told, runs off of the rear end hydraulic reservoir. We had a new pump installed shortly before things went "haywire". So, are you guys saying that the disappearing engine oil is going into that reservoir? If so, we'll try what was suggested: drain down to 'level plug', add certain amount of engine oil, then check to see if the rear reservoir is over filled. Am I correct on this? Please be patient with a "not familiar with Ford 3000 operator"! I really appreciate your advice & will heed it. BTW, will an operator's manual cover the problem that we're going through?
 
if it is loosing lots of oil

and

if it is not visibly leaking, showing signs of a leak or burning it.

then the next place i'd look is the rear end..
 
(quoted from post at 14:51:58 10/29/13) Okay, sorry about that. I'm not real familiar with this tractor, and use it only on occasion. The loader I'm told, runs off of the rear end hydraulic reservoir. We had a new pump installed shortly before things went "haywire". So, are you guys saying that the disappearing engine oil is going into that reservoir? If so, we'll try what was suggested: drain down to 'level plug', add certain amount of engine oil, then check to see if the rear reservoir is over filled. Am I correct on this? Please be patient with a "not familiar with Ford 3000 operator"! I really appreciate your advice & will heed it. BTW, will an operator's manual cover the problem that we're going through?
Click to expand...

I think you have the general idea - check if that engine oil is going to the rear reservoir. I don't think the oper manual will cover this, but a repair manual will. They can be had as a download for $10-15.
 
Yup, and if the pump is leaking that bad it probably is sucking air as well as engine oil and that is probably why the loader won't lift.
 
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