IXB-3 MANIFOLD HOLES

Started by sbick, April 28, 2006, 07:07:34 PM

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sbick

April 28, 2006, 07:07:34 PM Last Edit: January 01, 1970, 12:00:00 AM by sbick
Have a 1957 IXB-3.  The intake/exhaust manifold has 3 small circular through holes at the bottom of the intake/exhaust runners (3 holes total).  These look to be approx. 1/8" plus diameter.  Are these holes supposed to be there and if so what is their purpose?  I don't think anyone has tampered with this manifold.  Any input would be appreciated.  Thanks.

walter hudson

#1
April 29, 2006, 02:28:47 AM Last Edit: January 01, 1970, 12:00:00 AM by walter hudson
some of the original manifolds came with tiny holes in the exhaust runners at the bottom close to where it mounted to the engine . they were to let rain water out in case the exhaust was not covered . i have never seen one with holes in the intake . i doubt that they should be there ,because of the vac. leak that they would cause .

sbick

#2
May 01, 2006, 01:05:42 PM Last Edit: January 01, 1970, 12:00:00 AM by sbick
Yes Walter,
   My mistake - upon looking more closely the holes are in only the exhaust runners - not in the intake.  I will leave them as they are.
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