[Mg-mmm] Water in the sump

[Bob Grunau]

Tighten the rad cap, hook a small hose onto the overflow tube and blow into
the overflow. How? I would use a controlled air pressure regulator and not
go over about 5 psi.
Bob Grunau
  -----Original Message-----
  From: TATERRY at aol.com [mailto:TATERRY at aol.com]
  Sent: Friday, April 17, 2009 5:24 PM
  To: grunau.garage at sympatico.ca; lpalmer at roundaboutmanor.com;
mg-mmm at autox.team.net
  Cc: MMMGservice at aol.com
  Subject: Re: [Mg-mmm] Water in the sump


  In a message dated 4/17/2009 11:59:29 AM Pacific Daylight Time,
grunau.garage at sympatico.ca writes:



    I would pressure test the water system and see where the water is
leaking.
    If the sleeves are leaking, or the block was repair welded, maybe time
for a
    new block.

    It is possible for the water pump seal to allow water to leak into the
sump.
    Hopefully that is your problem.

    I would pull the sump before pulling the head. Then pressurize the
cooling
    system and look for leaks around the cylinder bores or sleeves.



  Thanks to all who replied so far....yes this block has been sleeved back
to standard, but by a very competent engine builder sadly now passed away.
It also had 17 inches of stiching done on the water jacket but I don't think
a failure there would do anything to leak into the sump.....I'm hopeful that
it is the water pump as I had it overhauled in Oz some years ago and it was
very corroded for starters....How do I pressurize the cooling system as
suggested my Mr. Grunau?

  Terry


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