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Re: Timing 101

To: Andrew Martens <joyride@sasktel.net>, MG digest <mgs@autox.team.net>
Subject: Re: Timing 101
From: jello@ida.net
Date: Tue, 3 Aug 2004 13:07:30 US/Mountain
Yes and no.  I don't have a '73, mine is and earlier car.  The general 
procedure is to set the thumbscrew in the middle of the A<->R setting, set 
the timing statically (which means loosening the clamp plate AND the pinch 
bolt).  Tighten clamp plate and pinch bolt.  Use the A<->R thumbscrew for 
fine adjustment.  Many have found that there isn't enough adjustment that 
way though - so you probably want to keep the clamp and pinchbolts just 
barely off of tight until you have it set.  

General setting is to advance until it pings (under load - i.e. drive it), 
then back it off just enough that it doesn't ping.  

Another method is to fill with regular, advance until it pings (under 
load, and just barely), then use premium.  

I haven't tried the latter, the former has produced good results.

Phil Bates

> A basic Q re timing a 1973 MGB. Must one loosen the distributor clamp 
plate bolts AND the
pinch bolt to adjust the timing? Why the elongated holes in the clamp 
plate?
> 
> thanks
> andrew

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