Re: [DML] More problems found (was Piston rings + sleeves)

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

In my experience I too find that timing does not usually change much
on most cars. What I DO find is timing that was not set properly or a
stuck mechanical advance or a non-functioning vacuum advance. It is
just good practice when you do a tune-up to check the base timing and
make sure the mechanical AND vacuum advance is functioning properly.
Most manuals ask that you check the timing and not try to adjust it if
it is off only 1 or 2 degreees. You can't do all of the other
adjustments correctly if the base timing is not at least close to 13
degrees and the power and economy will be terrible. The days of
setting cars up by sound and feel is long gone. You now have to have a
timing light and tachometer. An air-fuel meter is also real nice to
have. A scope is even better. A scanner is essential for all modern
cars (not Deloreans). 
David Teitelbaum
vin 10757


--- In dmcnews@xxxxxxxxxxxxxxx, "DMC Joe" <dmcjoe@xxxx> wrote:
> 
> Dave,
> 
> You are correct on all of your suggestions but I would like to add the
> following concerning engine timing. 
> 
> To Dani B.; Dave is correct about checking the engine timing, but if
it's
> off, don't readjust it. The PRV-6 timing does not drift out of operating
> range. If you're having problems with performance issues I would not
suggest
> to fool with the timing unless it was adjusted after the engine started
> running poorly. Here is an example. Over the years I have found that the
> factory setting of the timing will remain within 2 degrees of the
specified
>








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