Problem with manifold

hdsn49
hdsn49 Senior Contributor
edited November -1 in HUDSON
Yesterday my sons and I started up the Hudsons after the winter storage. The 49 sedan started up OK no problems except for no brake lights. Does anybody know the number for a new stop light swith.



When we started the Brougham, the engine sounded loud upon checking it out we noticed a whole in the intake manifold. I have posted a picture of before and after. There used to be a plug or something that filled the whole and now its gone? Any ideas of how to replug this whole. It is 9/16" in diameter.

Comments

  • nick s
    nick s Senior Contributor
    SL-134 is the napa/echlin number.

    as a side note: are you by chance using silicone fluid? when using it, I was lucky to get a year out of a stoplight switch, (i had other problems as well due to the silicone fluid.) since changing to dot 4 i have had no switch problems.

    should just be an expansion plug, i would be looking for clues as to whether it went in (no good could come from that), or hopefully out when it was lost.
  • hdsn49
    hdsn49 Senior Contributor
    Nick s & Rob

    Thanks for the advise on the manifold repair and I am going to look very closely to find out where that old plug went before replacing it.



    I am using silicone fluid. I've used it in this car for almost 20 years with no problems. But I have heard about problems with silicone. I think my switch is just old.
  • [Deleted User]
    [Deleted User]
    It takes a 9/16" expansion or freeze plug found at any auto parts store. Clean out the hole, bottom seat the plug and with a punch and hammer, expand the plug by hitting it in the center (lightly).

    Take note there are three of these plugs under the carb mount on a 2V manifold and 6 on the underside of a twin H intake they rot out so check them.
  • Unknown
    Unknown
    yup a freeze plug better for them to go than crack the motor or something along those lines
  • 7XPacemaker
    7XPacemaker Senior Contributor
    I agree with Nick S. I am using silicone fluid in my car and have lost a switch almost every year too. I got into the habit of keeping one in the car.
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