Thanks to Jason, Nolan Penney, Paul Logue, John Kipping,
Greg Rowe, Ben Bacon, Paul Tegler, Scott, Howard and anyone
else who replied to my plea for information that I may have
missed. You guys are better than any manual.
I'm going to trailer the car to the local MG/Triumph garage
to check it out. Unfortunately they can't get to it until
after Sept. 24th. I'll let you all know what happens.
Sadly,
Mike http://pages.prodigy.net/mikeross
63 Mk1 Spitfire
66 Mk2 Spitfire
68 Mk3 Spitfire (donor body tub for GT6 convertible)
69 GT6+ (donor chassis for GT6 convertible)
70 GT6+
----- Original Message -----
From: "Jason" <jjcon2@yahoo.com>
To: <mikeross@Prodigy.net>
Cc: <spitfires@autox.team.net>
Sent: Monday, September 10, 2001 10:15 PM
Subject: Timing marks on pulley incorrect?
>
> Mike Ross wrote:
>
> I'm stumped. I just bought a GT6 that ran great until I
accidentally
> and unknowingly rotated the distributor because the P.O.
didn't have
> it bolted tightly. It took me three days to figure out
why the car
> didn't run right; the timing had been screwed up. When I
tried to
> reset it I discovered that the T.D.C. marking on the
pulley didn't
> line up with the pointer when the #1 cylinder was at Top
Dead Center.
> In fact, it lined up about 2 1/2 inches in circumference
before the
> T.D.C. mark on the pulley. If I tried to set the timing
anywhere
> near the pulley mark, the engine would not run at all. If
I rotated
> the distributor so that the engine sounded smooth, it
lined up at
> about the same point 2 1/2 inches around the pulley
circumference
> before the T.D.C. mark.
>
> This engine has been rebuilt. He claims it was blue
printed, bored 30
> over, with new rings and pistons, crank polished, head
milled ,
> complete valve job, rocker shaft, new guides, rod
bearings, main
> bearings, and fast cam.
>
>
> Mike:
>
>
> My answers are:
>
> 1) could the front pulley have been installed so that it
no longer
> coincides with the T.D.C. mark.
>
> NO, THE PULLEY IS KEYED TO THE CRANK. THE KEYWAYS WOULD
HAVE HAD TO BE MACHINED OUT OF PLACE AT THE FACTORY. THAT
IS UNLIKELY.
>
> 2) since I no longer can use the pulley markings, do I set
the timing
> just by sound and feel?
>
> USE A TDC INDICATOR AND REMARK YOUR PULLEY. DID HE PUT A
SPIT TIMING COVER ON A GT6 ENGINE? NO, I DON'T KNOW IF THE
POINTER LOCATIONS ARE DIFFERENT.
>
> 3) one other thing I noticed when using a remote starter,
with the
> coil unplugged, to turn the pulley. The pulley seemed to
move forward
> a lot more than I remember ever seeing before. This was
during a
> short crank of the engine to get the pulley to turn just a
little bit.
> It seemed to move forward 1/4 inch. (actually it measured
to 3/16") Is this normal.
>
> IS THE PULLEY NUT TIGHT?
>
> HAVE SOMEONE DEPRESS THE CLUTCH PEDAL WHILE YOU WATCH THE
PULLEY. IF IT MOVES MORE THAN A FEW THOU, YOUR THRUST
WASHERS ARE BAD. IF IT REALLY MOVES 1/4" YOUR BLOCK AND
CRANK ARE DAMAGED
>
> One final note. It was late and I was tired but, I used
one of those
> whistle tubes attached to the spark plug opening to find
when the
> cylinder was at T.D.C.. This time, it seemed that the
pulley lined up
> about 2 1/2 inches AFTER the T.D.C. mark. Maybe I'm just
burnt out
> messing with this.
>
> CAN'T HELP YOU THERE. SORRY.
>
> Jason
>
> GT6+
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