triumphs
[Top] [All Lists]

[TR] marking TDC

To: "list Triumph" <triumphs@autox.team.net>
Subject: [TR] marking TDC
From: "Paul Dorsey" <dorpaul@negia.net>
Date: Sun, 9 Dec 2007 23:38:26 -0500
I'm still quite an amateur because me (or the engine shop) put the 'crankshaft
pulley flange' on in the slightly wrong position.  I don't think I have cause
to worry, though, as I ran the engine (mounted on the chassis and a year and a
half ago) without discovering this error until yesterday.  Now I've got the
body on it, and I had to use the Bentley manual (TR3B-TR4) to again do the
'ignition timing' procedure.
    I know things are weird cause I pulled #1 spark plug (and with the Sun's
direct rays) I could see inside the cylinder.  I also took my plastic straw,
holding it in a consistant place on top of the piston (and notching a spot on
it too to make sure when it's heighth plateau'd after a rising) and was
satisfied when TDC occured on the correct stroke.  Of course, the dist. rotor
pointed at #1 (verifying things).  AGAIN THE BIG THING IS THIS:  when the
flange's hole lined up with the pointer, the #1 piston was far from the top!
Again, i went twice around with the fan blades and I saw that TDC occured when
the small hole was at 10 o'clock instead of 12 o'clock..  I JUST to fix this
so I can time it, but, I don't care to dissassemble it just to get the small
flange hole right.  I'll be satisfied with a dot of white paint or something.
Hopefully, it's not going to be difficult!  Maybe a small white dot about 2",
or so, on the flange before the hole?
Thanks, Paul
_______________________________________________

Support Team.Net  http://www.team.net/donate.html

This list supported in part by the Vintage Triumph Register
http://www.vtr.org


Triumphs@autox.team.net
http://autox.team.net/mailman/listinfo/triumphs

http://www.team.net/archive

<Prev in Thread] Current Thread [Next in Thread>