15+ years ago I bought a small JD dozer with a 6-way blade to clear some trails in the woods and do a little dirt smoothing. It replaced a Cat D4-7U with a straight blade. The JD was badged as a 450 C. Changed all the fluids and fixed some little stuff when I got it and then put maybe 20-30 hrs a year on it. Not much time but there was nothing else on the place that would do what it would.
Long story short, last month I put it in one of the shop bays and began doing some major maintenance [wiring, some gauges, new hydralic lines, etc.] Of course changing the engine oil was on the list and that's what I'd like some advice on. I know the 450 takes 9 qts and I know I have the right numbered dipstick but the oil level seems to read low
Trying to figure out why, I started reading block casting numbers and think I may actually have a 550 block in the unit. It has 550 on the block and numbers like R55011 and R55034 on the block. Could a 550 engine fit in a 450 frame? The Ser # comes out as a 1975 450C so...
Anyone seen a hybrid 450/550 out there? Engine seems externally the same, but sump capacity would be 6 qts more if it were a 550 block.
Long story short, last month I put it in one of the shop bays and began doing some major maintenance [wiring, some gauges, new hydralic lines, etc.] Of course changing the engine oil was on the list and that's what I'd like some advice on. I know the 450 takes 9 qts and I know I have the right numbered dipstick but the oil level seems to read low
Trying to figure out why, I started reading block casting numbers and think I may actually have a 550 block in the unit. It has 550 on the block and numbers like R55011 and R55034 on the block. Could a 550 engine fit in a 450 frame? The Ser # comes out as a 1975 450C so...
Anyone seen a hybrid 450/550 out there? Engine seems externally the same, but sump capacity would be 6 qts more if it were a 550 block.