Update on my 148 crawler engine.

[Adirondack case guy]

Well, I washed it down good with the pressure washer first thing this morning. Brought it back up to the shop and pulled it apart. First thing I noticed was the splines in the hyd pump drive hub on the crank pully were all but gone. Don't know why the pump still turned.
Pulled the head and tore it down. Need intake valves and all the guides. Lots of carbon buildup in the valve domes. Pulled the timing cover and the felt dust seal was in sorry shape and main seal was severly cracked. Pulled the rod caps, and was plesantly suprised. showed little to no wear, and oil pressure was never an issue with this engine. Pulled the pistons and rods out and the rings were totally worn out. Pulled the mains and they showed little ware. Miced the rods and were well within specs. Going to replace all the bearings with std. inserts. the sleeves came out really hard, but finally poped loose. There wasn't a lot of crud in the block and the antifreeze was very clear. Since I have owned it I have added a can of STP when I changed the oil, not all that often, and atribute the great condition of the bearings to doing that.
I don't know how many hrs. are on this original engine as it has an electric hr. meter powered by a pressure switch Teed to the back of the oil pressure gage It is reading 374 hrs, at the moment, but the meter trips over after it records 1000 hrs.
Loren

 

[VAC400]

Loren, Great pictures, Engine really looks clean. Are you going to by a complete overhaul kit? What kind of oil do you use in the crawler?
Jerry from Ohio

 

[Joe (Wa)]

Loren, when I bought my 310 several years ago, I took the front PTO pump off because some one had put a sock filter in the suction line and it was totally collapsed so I figured the pump was probably damaged and left it off after the overhaul as I prefer to run the loader and EH off the internal pump.

The shaft splines were shot but I think the hub splines were decent. The hub is still on the engine. If you can't come up with a good hub let me know, I'll check the splines and send it to you if they aren't worn too bad.

Joe

 

[dzc3]

I rebuilt the 148 in my 310G crawler, all rod & main bearings were with in spec. and measured the same as new. Amazing

 

[casecollectorsc]

Doesn't appear to have much ridge. Did it inhale dirt being the intakes and rings are bad??

 

[Adirondack case guy]

When I bought it from the original owner, the bracket that held the aircleaner was broken off and the intake pipe kept coming apart. I fixed the bracket and I got a lot more hrs out of the tired engine. It was breathing pretty hard and had to watch oil level. I redid the undercarrage when I got it Pins-bushings, bearings in rollers and idlers. It should be a very good dozer yet when I'm dead and gone.
This dozer has a pto, and the original owner ran a blower to fill his silos for a good many years.
Loren

 

[Ol'TinBender]

Well that looks a lot better than mine did! Just got the overhaul kit from John a little while ago so this weekend i can get after it. Got the crank back from the machine shop did a great job welding up the one journal and it cleaned up at 10/10. Got the head done with new valves, guides and surface. The ol girl should run like new again!!

 

[Ande]

Lovin the updates Loren, its kinda like a book, and another chapter. Keep them coming, glad your getting some good news too.

You are really going to have fun with her once you get her percolating.

Dan