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[Healeys] Static Timing a Pertronix Ignitor

Subject: [Healeys] Static Timing a Pertronix Ignitor
From: simon.lachlan at homecall.co.uk (Simon Lachlan)
Date: Sun, 12 Feb 2017 11:51:22 -0000
References: <000001d28437$69772790$3c6576b0$@homecall.co.uk> <5cf137c8-1746-97a6-8dcf-2d5a59862980@chello.nl> <CAPTa0B5giuBsiNp6P5RjyqLxSefV-6YDPWjCqX8upE1q4aRitw@mail.gmail.com>
In this instance, static timing would precede dynamic timing because the car 
was so far out of tune that the engine would not run.

In my thinking, static is only used to get the timing onto the right map page, 
enabling the engine to be started and then tuned more precisely by other means.

Simon

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Michael 
Oritt
Sent: 11 February 2017 21:33
To: Oudesluys <coudesluijs at chello.nl>
Cc: Austin Healey <healeys at autox.team.net>
Subject: Re: [Healeys] Static Timing a Pertronix Ignitor

 

I am probably showing my ignorance on ignition theory but I have never 
understood the concern with static timing versus dynamic (total) timing when 
the car is running.  Since the amount of centrifugal advance is not adjustable 
why am I concerned with what the initial static timing is?  

 

So long as the distributor is oriented correctly and I am in the 
ballpark--usually verified by the engine's starting--all I do is set total 
timing at 3000 rpms's.

 

If I am missing something I would appreciate learning what that is.

 

Best--Michael Oritt

 


Set the crankshaft at the desired static ignition timing. Set the distributor 
housing with the rotor in the approximate position of no.1 cylinder on its 
compression stroke, then slightly back. Switch on the ignition and turn the 
distributor forwards until you hear the faint click of the spark. Switch of the 
ignition immediately. That would be fine for fine tuning the timing 
dynamically. 
Do not leave on the electronic ignition unnecessary, it may get damaged if left 
on for a long time.
Kees Oudesluijs


Op 11-2-2017 om 8:21 schreef Simon Lachlan:

We?re talking about an Ignitor ie NOT an Ignitor II. In a positive earth BJ8.

The timing may be all to hell. I?m in the UK; the car?s in Paris.

Let?s say that the clamp bolts ?may somehow have got loosened? during the 
initially successful swap from points to Ignitor the other day. 

(Yes, it?s an old Ignitor but it was NOS, boxed and unused, in the boot when 
the car was delivered.)

Now, I?ve been looking at my accumulated notes on Static Timing etc with a view 
that we may have to go down that track, if it proves that we have air, fuel and 
spark but not necessarily in the right order!

I?ve accumulated a lot of info over the years which is primarily a Good Thing, 
but sometimes I find conflicting information.

For example, one source says that the Ignitor II cannot be static timed. 
Another source implies that all EI?s, including Ignitor IIs, can be timed by 
putting a multimeter across the coil?s primary connections.

Another one says:- ?To begin the timing exercise you must statically time the 
engine at around 10 degrees BTDC. With the engine at 10 degrees BTDC on the 
firing stroke align the distributor so that the points are just about to open 
or in the case of an electronic distributor so that the stator and rotor tips 
are just aligning. Lock the distributor enough to stop it moving. Ensure that 
the vacuum advance retard is disconnected and the tube plugged. Start the 
engine and let it idle, adjust the timing with the engine running to 10 degrees 
BTDC and lock the distributor.?

(Ignore the 10? advice.) With reference to an Ignitor?..does this apply? And 
what is the ?stator?? I can ?assume? that it?s the little curved black box of 
tricks? Does this or could this apply to the Pertronix? Seems a bit 
inaccurate??one would have assume that the critical alignment point in the 
?stator? was prec.isely in the centre of the inside of the curve??..... I 
suppose one could try the voltmeter across the coil method and see where the 
rotor was in relation to the ?stator??? Any 

Has anyone any tips on static timing an Ignitor? I?ve timed them, but never had 
to go back to Stage One ie I?ve used a timing light and made adjustments to a 
running engine rather than go back to basics where the timing is completely out 
and the engine won?t fire at all.

Any help would be much appreciated and doubly so in Paris!

Simon

 

 

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