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m37 crankcase ventilation

just me

Member
322
10
18
Location
phoenix,az
You can see the components in the TM's and parts manual. It isn't a complicated system. Port in the block to the pcv valve to the fording valve and then the intake manifold. There is a line from the snorkel to the oil fill for inlet air.
 

exoilfld

Member
51
0
6
Location
alto, tx
There is a connection on the intake manifold, a crankcase breather connection with a steel tubing on it, a connection on the oil filler, 2 connections on the distributor, and 2 connections on the fuel pump; and I understand there is supposed to be a metering valve somewhere. I have 2 manuals for the m37, but they do not show how all those connections tie together. Plus, I have not even put the carb air breather stuff on yet. thanks
 

just me

Member
322
10
18
Location
phoenix,az
exoifld, All that stuff is part of waterproofing and fording, but the PCV system is just two parts. The line from the hole in the curbside rear of the block to the PCV valve, and then thruogh the fording valve to the center of the intake under the carb. And from the extension elbow (Snorkle) to the oil filler is a metal tube for filtered air into the block. That is the extent of the crankcase ventilation. The dist, master cylinder, fuel tank vents are part of fording. The lines from the bottom half of the fuel pump are for the vacuum wipers.
 
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