Intake manifold drip tube ?

Unknown
Unknown
edited November -1 in HUDSON
Just ran across this in the '37 service manual , didn't know there was such a thing . Supposed to be a vacume operated check valve in it. Any of these critters still around or a sub being used ? Probably not a must have part but could possibly prevent some serious damage under the right/wrong circumstances . BUD

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  • Jon B
    Jon B Administrator
    If my car was any indication, a lot of these were removed. My car had a bolt installed in place of the check valve, to prevent an intake air leak. I found a check valve and drip line on a junk Terraplane and installed it on mine, and it works fine. You need to get in with a solvent and clean out the valve so the ball works, of course. It may be possible to find a new ball check valve (it's brass by the way) threaded for the tapped hole in the manifold. You can fashion the tube portion from copper or brass. It just drops down along the engine side so that the excess gas drips out on the highway.
  • Geoff
    Geoff Senior Contributor
    "It just drops down along the engine side so that the excess gas drips out on the highway."



    Aarrgh!! Environmental vandalism.
  • [Deleted User]
    [Deleted User]
    Geoff,



    If an environmentalist ever looked under my Hudson, I would be locked up for life!
  • [Deleted User]
    [Deleted User]
    37 Terraplane#2 wrote:
    Just ran across this in the '37 service manual , didn't know there was such a thing . Supposed to be a vacume operated check valve in it. Any of these critters still around or a sub being used ? Probably not a must have part but could possibly prevent some serious damage under the right/wrong circumstances . BUD
    That tube is for when you shut the motor off, the gas that drips into the intake manifold drains out. This prevented hard starting when engine is warm. Packards also have this check valve. 1937 is the only year Hudson used it as those that did short drives it carboned up and stuck open and engine would not idle. Forget this item. Walt.
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