Water distribution tube in 31 Chrysler cm 6

[Steven Hill]

Did the early flatheads in the 31 CM   6 have a water distribution tube. I would rather not remove the water pump and look for a new gasket if it doesn’t have a tube. If it does I want to replace it.

[keiser31]

No, they do not have the tube. Just to let you know....the 1931 Dodge Brothers DH6 and the DeSoto SA6 are VERY similar to the CM6 mechanically speaking.

Edited February 28, 2019 by keiser31 (see edit history)

[Steven Hill]

Thanks that saves me a lot of work

[hchris]

What Keiser said,  but just to elaborate a little - assuming you have the original engine, cooling tubes were introduced around 1934; you can tell by noting that the pre tube blocks have the upper cylinders exposed in the block casting on the starter motor side, after that the blocks were flat both sides.

[Steven Hill]

Mine have the cylinders exposed.

[Rusty_OToole]

For anyone concerned about this there is a way to test without taking anything apart. Check the temperature of the engine when hot, with a laser thermometer. Front and rear of engine should be the same temperature. If the back is  hotter you know all the water is streaming up the front and not reaching the back.