Not really sure. Could be a combination of mechanical wear, electrical
inefficiency due to aging of electrical parts, could be a combination of
any number of small things. Just not sure. Experience has demonstrated
to me over time that things as they age often have to be set differently
than by  the numbers as set by the factory.

Regards,

John Rodgers
88 GL Driver

David Bohannan wrote:
> What do you think accounts for the fact that you had to split the diff to
> get it to work? Slack in the dist? wear in the engine?
>
> Dave
>
> On 4/25/06, John Rodgers <inua@charter.net> wrote:
>
>> I'm back online at last!
>>
>> Blasted computer has totally frustrated me .... computer crash!! Install
>> new mother-board, Crash!!, Re-install all software, Crash!!! Hours and
>> hours spent struggling with it all - then I crashed!   Finally
>> re-formatted all the drives, re-installed all the software, and that
>> worked. At long last I'm back in the ether! What a PITA!! My computer
>> has been down for almost a month, and it is a major working tool. Sure
>> lost some ground this time around.
>>
>> Lated Vanagon wrinkle - set the timing on the old WBX. It had a spark
>> rattle under load. With the timing light strobe I could tell it was way
>> advanced, so I  reset it by the book to 5 degrees. Spark rattle gone,
>> but noticeable power loss. So I reset it again by splitting the
>> difference between where it was, and the 5 degree book setting. That
>> seemed to work. It now runs smooth, no rattle, and good  power.  It is
>> probably set about 7-1/2 degrees BTDC, but seems to work best there.
>>
>> Regards,
>>
>> John Rodgers
>> 88 GL Driver
>>
>>
>
>
>
> --
> Dave - KC9FYM
> http://fjazzbass.blogspot.com
>
>
>