Clausager doesn't list my engine number, which is BHM 1109-228E. Can you
suggest any other references?
Paul Hunt had this to say:
>If you get pinging/pinking when under load it is an indication that the
>centrifugal advance may be too high, which can be caused by stretched
>springs allowing max advance at too low an rpm. An adjustable timing light
>is really useful for checking/plotting the advance curve and vacuum advance.
>By contrast, pinging/pinking on a light throttle can mean no more than the
>timing is set too advanced.
>Clausager has a comparison list for Gold Seal or other pukka replacement
>engines. For example, and to pluck one out at random, he states that a 48G
>393 is a rebuilt 18GB low compression with manual gearbox.
>(or if that URL doesn't work try )
>From: Max Heim <firstname.lastname@example.org>
>To: MG List <email@example.com>
>Date: 23 August 1999 04:38
>Subject: Re: ignition timing
>>I have been operating on the assumption that I have a HC engine, I always
>>use 92 octane, and I keep it at 14 degrees. [The reason for the
>>disclaimer is that it's a BHM engine number ("Gold Seal" rebuilt) out of
>>a wreck, and I can't find a configuration reference for the number
>>series.] A while back I had a little pinging problem after my timing
>>light broke, but I got a new one, retimed it, fixed various distributor
>>advance failures, and since then no problems.
>>Larry Colen had this to say:
>>>What advance do people run on High Compression (9.7:1) MGB motors
>>>running the 92 octane fuel? I think that I might be getting a little
>>>pinging in warm weather, up steep hills at 12 degrees BTDC set at idle.
>>>That's 2 degrees retarded from the specified 14.
>>> Rome did not create a great empire by having meetings; they did it by
>>>killing all those who opposed them.
>>'66 MGB GHN3L76149
>>If you're near Mountain View, CA,
>>it's the red one with the silver bootlid.
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