mkmac
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Hi fellas,
Dads got a 237 motor with a 7220 behind it earmarked for restoration but has an oil leak.
It looks more like engine oil than transmission fluid but only leaks when not running.
All we can really see is it around the bell housing but wondering why it only leaks when not running?
Im thinking rear seal and maybe when running there's pressure thats enuf to seal it.
Also not sure how high the oil level sits in relation to rear crank seal.
Any thoughts or suggestions on what to try/test before pulling it down?
Thanks.
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On 8/2/2020 at 1:10 AM, terry said:
No tag, it is stamped in the case, you might have to wire brush it to see it. terry
Yes,
When looking at the filler plug the flat spot to the right/rear is where the model number is stamped.
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On 9/1/2018 at 2:43 AM, Rev.NitroNick said:
Indeed Terry! Thanks! Guess I'll be looking for a transmission identification tag/number.
There is a flat section on the left hand side to the rear of the filler pump where the ID number is stamped.
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On 10/26/2009 at 1:15 PM, ThaddeusW said:
My guess is the very tall rear ends (tall meaning higher ratio number) makes up for the lack of gears. These trucks weren't speed demons but rather built for serious hauling over rough terrain. The ratio is given as 6.44:1 which is pretty darn tall.
As for swapping motors, the transfer case might be a weak point if you put in a high torque motor. But I am sure swapping in a 237 Maxidyne would be fine as long as you don't abuse it. The only thing to worry about when doing engine swaps in those M39's is the amount of length you have before you cant properly couple the transmission to the transfer case. Meaning you cant have a transmission that's too long. I have seen CAT 3208 boat anchors put in them but not something as big as an E6-350. The 237 Maxidyne with a Mack 5 speed might be a great fit.
Dad put a 237 in his b model.
It replaced the 711.
Had to shift radiator fwd 20mm and kept the quad.
237/Quad oil leak
in Engine and Transmission
Posted
Haven't split it but can wash it off run it for a while and all good, within maybe 30 min of shutting it off, starts to seep, after 2-3hrs starts to form a drip.
Leave about a 30cm round oil mark on the ground overnight.