[TR] Fw: TR3A Leak down test-final findings #2-Must be Christmas!

[Alex]

Actually I found the NOS match in AU per the link. Thanks much though!
Alex
  ----- Original Message -----
  From: Chris Simo
  To: Alex
  Sent: Saturday, December 24, 2011 5:06 PM
  Subject: Re: [TR] Fw: TR3A Leak down test-final findings #2-Must be
Christmas!


  Ill check my pistons on monday

  On Dec 24, 2011 5:00 PM, "Alex" <ambritts at bellsouth.net> wrote:

    Must Be Christmas!!!!!!!!!!!!!

    Last week I put out a query to the list if anyone heard of a piston with
the following markings on the top of the piston.

    RA5228 STD

    Got no response and now I have identified that I need 1 piston 87mm.
Really do not want to buy a whole set. Would be nice to find the original and
a NOS would be the cat's meow.

    http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=270837323681

    Alex Manzo
    59 TR3A



    ----- Original Message ----- From: "Alex" <ambritts at bellsouth.net>
    To: "*Triumphs List" <triumphs at autox.team.net>
    Sent: Saturday, December 24, 2011 4:35 PM
    Subject: [TR] TR3A Leak down test-final findings



      Well, found out the problem at least with the number 3 cylinder in my
59
      TR3A.

      After establishing with the leak down test that we had a constant air
stream
      exiting the engine vent tube, we pulled the head again, dropped the pan
and
      pulled out #3 piston.

      The 2 piston channels where the rings seat were cracked and broken along
with
      the ring (s). Everything was riding in its' place without any apparent
      damage.

      The sleeve wall had a few very minor scratches that the hone will
easily
      remove. The piston is not 86mm as I earlier reported but 87mm with 3
rings. It
      is stamped RENZ 140pd in the hollow of the piston. A Google search did
not
      turn up anything for this piston.

      So now a search for 1 piston with rings. There are many sets listed in
the
      Moss catalog but then again even with the sets there does not appear to
be
      87mm 3 ring pistons.

      Anyone know if putting in an 87mm 4 ring would harm anything? Would
appear
      not.........not sure about balance issues..............or anything
else.

      So the main mystery is solved. Interesting point is how the smoking was
almost
      eliminated with the last few drives just before I pulling the head.

      Now onto the carburetors and the condensation issues after the engine is
put
      back together.

      Good time to replace the skinny roadside repair fan belt that was
installed
      last year with a breakdown. :o)

      Wishing everyone a very Merry Christmas, Happy Hanukah and Happy New
Years.
      Alex Manzo
      59 TR3A

      Moss does not show a standard 87mm piston available