Ignition Timing Marks

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jswagger
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Ignition Timing Marks

Post by jswagger »

Hi,

I'm going to be using an ignition timing light for the first time tomorrow and despite all the reading and YouTube watching I've done still have a question

Do you use the TDC or BTDC marks?

Cheers.
1988 Caravelle 1.9 DG Auto

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jrt
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Re: Ignition Timing Marks

Post by jrt »

Itchy's excellent explaination here http://wiki.club8090.co.uk/index.php/Pe ... 1.9_Timing" onclick="window.open(this.href);return false; i'd never done mine until a few years ago and it's all pretty easy.
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jswagger
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Re: Ignition Timing Marks

Post by jswagger »

Cheers for the link JRT, I've already read it and still have questions.

In the 1.9DG section,if it's out then how do you tell it's out?

My engine isn't starting so I'm checking the timing just to check it''not the reason.
1988 Caravelle 1.9 DG Auto

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itchyfeet
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Re: Ignition Timing Marks

Post by itchyfeet »

have a read

http://forum.club8090.co.uk/viewtopic.php?f=37&t=163388" onclick="window.open(this.href);return false;
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1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
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itchyfeet
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Re: Ignition Timing Marks

Post by itchyfeet »

Some more bedtime reading here

http://forum.club8090.co.uk/viewtopic.php?f=37&t=168808" onclick="window.open(this.href);return false;
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
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jswagger
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Re: Ignition Timing Marks

Post by jswagger »

Cheers for that, something else to read
1988 Caravelle 1.9 DG Auto

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itchyfeet
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Re: Ignition Timing Marks

Post by itchyfeet »

To answer your question you use BTDC mark if the strobe is not adjustable
if the strobe has adjustability then set to zero and use BTDC mark or set strobe to 5 degrees BTDC and use TDC mark

Adjustable strobes always catch me out as I forget to zero them. Very dangerous.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
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jswagger
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Re: Ignition Timing Marks

Post by jswagger »

Cheers all
1988 Caravelle 1.9 DG Auto

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ajsimmo
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Re: Ignition Timing Marks

Post by ajsimmo »

itchyfeet wrote: Adjustable strobes always catch me out as I forget to zero them. Very dangerous.

Mine's a pain as it defaults to 10°, even if power is interrupted for just a moment. Easily missed! Why-o-why don't they all default to 0???

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itchyfeet
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Re: Ignition Timing Marks

Post by itchyfeet »

ajsimmo wrote:
itchyfeet wrote: Adjustable strobes always catch me out as I forget to zero them. Very dangerous.

Mine's a pain as it defaults to 10°, even if power is interrupted for just a moment. Easily missed! Why-o-why don't they all default to 0???

Sent from my ONEPLUS A3003 using Tapatalk


Mine ( Gunson) has a twidly knob which has no resistance so it gets moved every time you pack it away or sometimes just resting it down.

I set the timing then think that sounds wrong then remember, this happens every time because I don't use it as much as you might.
1988 DG WBX LPG Tin Top
1989 DJ digijet WBX Holdsworth Villa 3 Pop Top
itchylinks

jswagger
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Re: Ignition Timing Marks

Post by jswagger »

ImageHi,

Hi,

Does anyone know if the image above is with No1 cylinder at TDC or BTDC?

Cheers
1988 Caravelle 1.9 DG Auto

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