Re: H with a cracked manifold ???

Posted by Randy as in Randy-IA on June 11, 2006 at 13:40:03 from (207.177.83.238):

In Reply to: H with a cracked manifold ??? posted by old on June 11, 2006 at 13:11:59:

Hi Old , Good luck with either way ! Welding old rusty cast iron will drive you crazy and probably not hold for more than a few heat/cool cycles . Brazing on the other hand if you can get the area SPOTLESSLY clean inside and out MAY hold a little longer . I think your best bet is to find a good used one though others might disagree . A new one from wherever isn't over 145.00 and should be surface ground to flatten the mounting surface .

I looked into my M exhaust last weekend when I replaced the pipe with a galvanized one and was amazed to see how it was made . There's only two intake runners into the head that are between the two front and rear exhaust ports . The exhaust just goes into the large box-like plenum just above the pipe that the carb is attached to . It's got a well at the bottom about an inch wide that runs from front to back . The intake protrudes into the bottom/engine side of this box type area and splits to the front and rear . It's no wonder that they overheat when it get's hot out ! They'd probably put out a bunch more hp if the intake and exhaust could be seperated . But my manifold is a gas manifold so the multi-fuel manifolds might be a little different .

It's still very cool up here :*) good luck ...Randy

Replies:

• Re: H with a cracked manifold ??? old 14:09:56 06/11/06 (8)
  • Re: H with a cracked manifold ??? Randy as in Randy-IA 19:09:11 06/11/06 (1)
    • Re: H with a cracked manifold ??? old 20:56:21 06/11/06 (0)
  • Re: H with a cracked manifold ??? MagMan 14:46:08 06/11/06 (5)
    • Re: H with a cracked manifold ??? old 17:50:56 06/11/06 (4)
      • Re: H with a cracked manifold ??? sde 20:15:22 06/11/06 (3)
        • Re: H with a cracked manifold ??? old 20:44:04 06/11/06 (2)
          • Re: H with a cracked manifold ??? GordoSD 07:59:59 06/12/06 (1)
            • Re: H with a cracked manifold ??? old 08:10:57 06/12/06 (0)

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