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Re: 69 B tuning -- what are we missing here?

To: MGs <>
Subject: Re: 69 B tuning -- what are we missing here?
From: Chris Kotting <>
Date: Tue, 11 Sep 2001 08:04:52 -0400
Max -

Have you checked that the pistons on both carbs are moving freely?  I
had similar troubles when one piston got hung up.  Fortunately it was
easily rectified, but until I check the piston movement, I had no clue
as to the problem.

Chris K.

> Date: Mon, 10 Sep 2001 12:11:24 -0700
> From: Max Heim <>
> Subject: Re: 69 B tuning -- what are we missing here?
> Well, due to the "hidden" timing marks we had originally set it at around 15
> degrees advanced (as it turned out). It wouldn't accelerate in this mode, so
> we tried cranking the vernier all the way advanced (still no go) and
> retarded (nope). That's when I felt around underneath the pulley and found
> the degree pointers. At that time we were around 12 degrees advanced. So we
> loosened the distributor clamp and brought it around to 10. This let us
> reset the idle, so we went through the carb setup again.
> So we've basically tried a wide range of timing settings (I would say from
> about 5 to almost 20 degrees advanced). It seems to me it must be something
> else.
> I have heard of the harmonic balancers separating so that the timing mark is
> off, but the engine idles so well it's hard to believe it can be seriously
> wrong.

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