I have an Cat 950 loader 81j series that had developed a hard starting problem. This has been an issue for me in the past and it has always been fuel lines leaking air. 30+ year old fuel lines tend to be on the brittle side. It was due for a service anyhow yesterday so I ran it into the shop. I poked around and wiggled a few different things, before calling it a day.
This morning I went back in and started it to allow it to warm up before I dropped the oil on it. It started probably easier then it has been, but the fuel pressure never came up like it usually does. After more some time and more less putting it to the floor it finally kind of made it into the green. I stepped out of the cab and the thing was pumping gallons of fuel on to the floor.
I shut it down and found the leak. It was one of the lines that I had wiggled last night. I assume I must have broke it off when I was messing around. But the trouble is I for the life of me can not find the other end of this thing. I will attach a picture of where it came from, with an arrow point to it (the line was not on when the picture was taken). I remember from last night though that the line in question ran from the pump straight down and came out somewhere around the crank case vent behind the alternator.
I had the idea that this maybe was some sort of vent with a pressure valve on it. I can look up into the hole where it was threaded with a mirror and I am not completely sure that it was not cut for a ball type check valve. When I took the line off I don't remember any spring or ball falling out. Though it would not be the first time that I have missed something like that, and lost the ball and spring. I stuck a bolt in the hose with a hose clamp on it, and started the machine up. Which it did easily and seemed to run well for quite awhile but it eventually ran out of fuel. Which leads me to believe that this line must go some where and I am just not seeing it.
I am hoping to find someone that may know a thing or two about these old loaders, or possibly someone with a service manual. If not I am going to have to run up and check out the dealers manual or buy my own. The dealer is about an hour and a half away, so I am hoping someone here has some ideas.
This is my first post here, and I realize it is a long one. Any help would be much appreciated.
http://imgur.com/VSZUu7y
Will
This morning I went back in and started it to allow it to warm up before I dropped the oil on it. It started probably easier then it has been, but the fuel pressure never came up like it usually does. After more some time and more less putting it to the floor it finally kind of made it into the green. I stepped out of the cab and the thing was pumping gallons of fuel on to the floor.
I shut it down and found the leak. It was one of the lines that I had wiggled last night. I assume I must have broke it off when I was messing around. But the trouble is I for the life of me can not find the other end of this thing. I will attach a picture of where it came from, with an arrow point to it (the line was not on when the picture was taken). I remember from last night though that the line in question ran from the pump straight down and came out somewhere around the crank case vent behind the alternator.
I had the idea that this maybe was some sort of vent with a pressure valve on it. I can look up into the hole where it was threaded with a mirror and I am not completely sure that it was not cut for a ball type check valve. When I took the line off I don't remember any spring or ball falling out. Though it would not be the first time that I have missed something like that, and lost the ball and spring. I stuck a bolt in the hose with a hose clamp on it, and started the machine up. Which it did easily and seemed to run well for quite awhile but it eventually ran out of fuel. Which leads me to believe that this line must go some where and I am just not seeing it.
I am hoping to find someone that may know a thing or two about these old loaders, or possibly someone with a service manual. If not I am going to have to run up and check out the dealers manual or buy my own. The dealer is about an hour and a half away, so I am hoping someone here has some ideas.
This is my first post here, and I realize it is a long one. Any help would be much appreciated.
http://imgur.com/VSZUu7y
Will