[Healeys] Tech Session at Conclave re: timing

[Michael Oritt]

Richard--

One method of "Old School" tsetting timing (at idle) is to put a glass of
water on the valve cover and adjust the timing until the surface of the
water is smooth and free of ripples.  Aside from the fact that the valve
cover on Healeys is not flat I question what a smooth idle has to do with
WOT or high-end performance, but it does sound charming.  Another is to
retard until pinging occurs but I have heard and read that there is
something called "silent pinging".

When I set timing on my 100 I do it at high rpm's (2500 to 3000) with a
light and look for 34-35 degrees of advance.  Anything beyond that causes
my engine to overheat and sometimes I will take a degree or two off that if
engine temps suggest.

Best--Michael Oritt


I have heard (not seen) people

On Wed, May 26, 2021 at 5:16 PM John Vrugtman via Healeys <
healeys at autox.team.net> wrote:

> way I used to do that was advance timing and test drive lugging in high
> gear, when pinging started, it was time to retard slightly to avoid
> pinging.  Worked fine.
>
> JAV
>
> On 5/26/2021 4:08 PM, richard mayor wrote:
>
> Some additional info for you listers about my post.  I do in fact have a
> timing light. I actually have two.  Please do not reply to me and tell me
> what the factory spec is or what the total advance should be or anything
> else you assume I don't know.  I simply have a keen interest in knowing
> about "old school"  techniques and how to apply them.
>
> On Wed, May 26, 2021 at 11:10 AM richard mayor <boyracer466 at gmail.com>
> wrote:
>
>> There was a discussion at the Conclave tech session about ignition
>> timing..... advancing the distributor to a certain point and then backing
>> off a certain amount..... without using a timing light.  I cannot remember
>> the specific details but I would like to try it.  Does anyone have the
>> exact details of the procedure?
>> Thanks,  Richard
>>
>
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-- 
Best--Michael
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