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Installing distributor and leads on stock 253 / 308


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#1 FordPrefect

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Posted 23 November 2014 - 09:02 PM

Hi all,


This is a a fairly basic question so I hope you can help.
Does anyone have information or pictures of correct rotor position , plug lead positions , coil wires and timing marks when installing points distributor in lx v8.
Engine was running some years ago but has had the coil, distributor ,cap and leads removed.
(are all the points distributors the same across torana and kings wood 253 308 engines

Thanks

#2 TerrA LX

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Posted 23 November 2014 - 09:51 PM

Number 1 on the cap points to cylinder number 1.

Firing order is 127824563.

Distributor body should be fitted so the center mark on the rotor aligns with the scribe mark on the mating face of the distributor body (where the cap seats). With the rotor pointing to cylinder number 1 on TDC. (when no.1 is firing).

 

Some model dizzy's differed in their advance curve etc. (due to year model/emissions compliance).


Edited by TerrA LX, 23 November 2014 - 09:54 PM.


#3 FordPrefect

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Posted 23 November 2014 - 10:04 PM

Thanks,
What do the timing marks show for tdc

#4 Bigfella237

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Posted 24 November 2014 - 12:22 AM

To start with, you need to ensure you're on number 1 cylinder compression stroke: if the rocker cover is off, you can watch the rockers as you turn the engine over by hand to make sure both valves are closed (ie not rocking); or else just remove number 1 spark plug and hold your finger over the hole while you turn the engine by hand, you will feel air pushing past your finger as the timing marks on the balancer are approaching the scale.

 

I should have mentioned before that you should try to only turn the engine over in the clockwise direction, if you do overshoot the mark and have to go backward, go a quarter turn further than you need then sneak up on the mark again clockwise. This is to account for any slack in the cam drive or distributor gear.

 

Now that you know you're on the compression stroke for number 1 cylinder, sneak up on the timing scale and stop at the amount of initial timing you need, so if you want to set initial timing at 8° bTDC you would stop when the timing mark is at 8° advanced...

 

105730d1290584644-vs-v8-ignition-timing-

 

Before you drop the dizzy in, you need to set the points gap as any change in gap (AKA dwell angle) will also change the initial timing.

 

Now install the distributor so that the rotor button is pointing at the little notch in the housing as Terra LX said.

 

If you have a normal old 12v test light (or even an old taillight bulb & socket will do), connect it between the positive battery terminal and the electrical wire/terminal on the dizzy. If the install went well the points should be open and the light off.

 

Rotate the dizzy clockwise (ie. retard the timing) until the points close and the light just comes on and tighten the distributor at this point, connect the coil/tacho wire, install the cap & leads (and number 1 spark plug of course) and you're done!

 

At some stage I would recommend setting everything more accurately with a dwell meter and a timing light but for now that should get you running.



#5 TerrA LX

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Posted 24 November 2014 - 06:31 AM

Number 1 on the cap points to cylinder number 1.

Firing order is 127824563.

Firing order should read 12784563



#6 yel327

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Posted 24 November 2014 - 07:39 AM

Hi all,


This is a a fairly basic question so I hope you can help.
Does anyone have information or pictures of correct rotor position , plug lead positions , coil wires and timing marks when installing points distributor in lx v8.
Engine was running some years ago but has had the coil, distributor ,cap and leads removed.
(are all the points distributors the same across torana and kings wood 253 308 engines

Thanks


HT to HZ Holden with 253/308 are the same basic dizzy physically as Toranas (except L34), but not just Kingswood, all Holdens from Belmont through to Brougham plus Statesman. Also VB Commodore as well is the same as Holden and Torana.

But the curves in them are different and also differ between auto and manual and between 253 and 308. So you want the right dizzy for your engine or need to get one regraphed.

If you post what the car is ie what year/month and if auto or manual i'll tell you the original dizzy numbers you are looking for. The engine may have been changed though so a regraph to suit is a good idea.

#7 FordPrefect

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Posted 24 November 2014 - 07:33 PM

Thanks,

I will be back with the car Sunday, so I'll have a look at the numbers.




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