Ron, the 1275 crank pulley should have a small notch on the circumference on
the edge BEHIND the fan belt groove. This location was probably selected by
the same folks who decided to put the timing degree reference on the bottom
of the engine.
If you do not find a TDC notch even there, then you'll have to re-establish
TDC and then make a permanent mark on the pulley in-line with the O mark on
the degree reference.
I made it a little more user-friendly by painting a white line on the front
face of the pulley damper, in line with the notch.
I would guess the carb needle is bent, but I've never had the symptoms on my
1275 so I'll leave a better answer to others.
Steve Byers
HBJ8L/36666
BJ8 Registry
1973 MG Midget
Havelock, NC
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Ron Ray
Sent: Tuesday, December 29, 2009 4:12 PM
To: healeys@autox.team.net
Subject: [Healeys] 1275 Engine timing and carbs
While trying to help a friend time the 1275 engine in his recently acquired
Bugeye, we could not see or feel any indication on the pulley indicating the
TDC notch. We looked and felt around the entire circumference of the
pulley.
Does anyone have any suggestions what may have happened and how to correct
this?
Also, one of the HS2 carbs' piston needle binds up after centering the jet
and tightening the nut. Loosening the nut allows the piston to fall with
the "clunk" sound. However, even with the nut lose the needle seems to be
sticking as upon acceleration of the engine, this piston does not raise
nearly as quickly as the other carb piston. I assume that the needle is
bent and we should replace both the needles and jets in each carb.
Thanks.
Ron
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