Old Magnet
Senior Member
Looks to have tilt cylinder blade plus original Medford cage.
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Should I take on this project? 50s Cat D4
- Thread starter Lumberjack Matt
- Start date
Lumberjack Matt
Well-Known Member
Well it took some doing but I was able to get her rolling. I about maxed out my 6 ton winch and it didn't budget, but as soon as I put a trail jack under a grouser it popped free. I have someone coming to help me load it up on Wednesday... it's going to be cramped getting the trailer lined up. Hopefully the track brakes work ok.
skip to 16:10 in here to see it move:
skip to 16:10 in here to see it move:
Last edited:
Tones
Senior Member
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- Mar 15, 2009
- Messages
- 3,078
- Location
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- Ex land clearing contractor, part-time retired
Well done Matt. The blade set-up looks like a Caterpillar build apart from the tilt. Those lift rams should have shims behind the end plate on the barrel so when they weep you remove a shim and rebolt it. The hose end on the lift cylinders are reusable. On that model there's no live drive to the winch so the master clutch must be engaged to operate it and the levers on the far R/H side are a break lever and a lever to engage the winch which are adjusted through the inspection plate you removed.
I love watching these old machines recovered rather than scrapped.
Caterpillar D2 #5J1113 Diesel Engine Assembly Ep.32: Governor Overhaul & Injection Pump Installation - YouTube
Interesting information. It seems like this covers what Oldmagnet described that could be your D4 Issue.
Interesting information. It seems like this covers what Oldmagnet described that could be your D4 Issue.
Old Magnet
Senior Member
The video is a different governor, fuel injection pump and engine than what's is a 7U D4 but that bit about the o-ring seal between fuel tower and pump and the end of the fuel gallery still applies.
Yes, When he got to that part was when I thought about this.
Lumberjack Matt
Well-Known Member
Well, I'm glad I hired a pro to move this thing, otherwise I'd still be out in the woods trying to get the trailer lined up.
Anyways, it's mine now officially. Here she sits after a nice power washing.
I guess first order of business will be to change fluids, clean out the radiator, fix the fuel injection leak, and see if she will fire up.
Anyways, it's mine now officially. Here she sits after a nice power washing.
I guess first order of business will be to change fluids, clean out the radiator, fix the fuel injection leak, and see if she will fire up.
Old Magnet
Senior Member
I'm curious to know where the hydraulic source is for the blade tilt???
Lumberjack Matt
Well-Known Member
The lift and tilt lines all run to the same valve box that has this lever on it, presumably which switches functions. A few taps with the mallet got it moving freely.
Don't see a manufacturer stamp on it, but there is a number on it.
Spud_Monkey
Senior Member
Old Magnet
Senior Member
OK, awkward but it will work, kind of thinking the source may have been another pump but I didn't see an additional control valve.
DMiller
Senior Member
First efforts should be to see if engine will roll over by hand, that being said if locked up all other fluids are moot until that is freed up.
crack the drain plugs enough to let out several drops until you know it's the right kind of fluid, that is no water. Then start it up with the old fluids, maybe change the filters if they're real old and cheap. No point in draining the clean oil and leaving all the gunk in the bottom of the pans where it's settled now.