[TR] Identifying Mk III Engine Block Externally

[Ernest Husmann]

Wayne:
 
Try this link:
 
http://www.triumphspitfire.com/historymk3.html 
 
The most accurate way to tell what engine you have are the engine numbers
stamped on on a boss located on the block just below the head.  If the numbers
are not readable then the bolt on the lower pulley; if this bolt head is
bigger than 1.5 inches it is a large journal 1296; if smaller than 1.5 inches
it is a small journal 1296 or possibly an 1147 which would be an incorrect
engine for a Mk3.
 
I am not aware that any 1296 came with a single carb; I believe the single
carbs were only on 1500 motors; but then I don't consider myself an expert on
the subject. 
 
Good luck
 
Ernie

--- On Tue, 4/13/10, Wayne Lee <wayne at motorcarriage.com> wrote:


From: Wayne Lee <wayne at motorcarriage.com>
Subject: [TR] Identifying Mk III Engine Block Externally
To: "Triumph List" <Triumphs at autox.team.net>
Date: Tuesday, April 13, 2010, 1:56 PM


Hi All,
   I'm going down after work with my Van to pick up some loose Bits from
the Garage where the 69 Spitfire Mk III is located . The Engine was rebuilt
in
the
past and until I pull the Sump Pan and look at what I have, How can I tell if
this replacement
Engine is a Mk III or the later, larger Bearing Sized example by looking at
it
externally or
by having some Casting #'s to go by. I seen a single Carb Manifold amongst
his
spares
and I'm hoping it didn't come off of this Engine.
   He has 2 Trannies and an extra Diff., so there's hope it's a Mk III if he
picked up the rest
of the pieces from another Collection. In the meantime, I'll be anxious to
identify it, when I get there.
Any help appreciated. I won't be leaving for another 2 1/2 hrs.
Cheers,
Wayne
Douglas, MA

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