#Caterpillar dozer 6v serial number

Engine was a different 4-1/2” bore 6 cylinder called a D333. The flywheel housing has the boss cast in and the hole can be cut with a hole saw and the holes drilled and tapped without removing the engine from the tractor.Īround 1960 the 8/9U were replaced by the D6b 36/37a I think it was. The problem is the older ones aren’t machined to bolt the starter on. It’s far cheaper to buy a 12 volt DELCO 40MT and the special drive for the bevel cut flywheel gear than to overhaul a blown up pony motor. The factory direct electric start system was 24 volt but most folks use 12 volt starters these days when replacing the pony motor. The plain Jane model had no pony electric starter, you used a pull rope wound around the flywheel. Lots of them are jump started using a 12 volt vehicle and jumper cables. Pony USUALLY had 6 volt starter and the diesel had a generator to charge the battery if it had one in a box on the fender.

Oil clutch is practically indestructible compared to the dry clutches.ĭirect electric start was an option but pony start was most common by far. Look for a dipstick and a breather on the right side of the clutch housing of the oil clutch. You may find some that were retrofitted to earlier machines as there was a kit offered at that time.

#Caterpillar dozer 6v serial number

That can bite you if you forget when you’re trying to get out of a cloud of bees in a hurry!Īll CAT tractors in those days had hand clutches.Īt serial number 13263-up, the oil clutch was introduced. No reverse in 5th no matter where you shift the reverser lever. All have a 4-1/2” bore 6 cylinder D318 engine and a 5 speed manual transmission with a reverser lever next to the gearshift. The U series D6 was introduced in 1948 and produced until 1959.