XJ6 & XJ12 Series I, II & III 1968-1992
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replacing the distributor on my 86 xj6 series III

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Old 03-23-2013, 08:09 PM
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Default replacing the distributor on my 86 xj6 series III

basically... where do I start, I've never done this. I have the new distributor, I got the air filter housing out of the way, I removed the cap leaving the sparkplug wires intact so when I'm done I can just snap it back on without worrying about the firing order.
I'm guessing I can just find tdc yank the old one out and put the new one in, it looks like it can only go in one way, but I don't want to break anything or throw the timing off. what is the proper procedure?
 
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Old 03-25-2013, 04:31 AM
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It has been a while since I did that, but I would mark the position of the distributor body to the block, and mark the position of the rotor button to the distributor. Is it spiral gear drive still?
Not that it has much to do with this, but Jaguar number the XK motors from the firewall end, caught me once.
 
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Old 03-25-2013, 04:49 PM
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As fred said, mark the position of the housing and the rotor. There's a horseshoe shaped clamping plate bolted around the base, into the block with one bolt. The bolt is a little bit of a pain to get to and a little PB Blaster soak of the base of the distributor couldn't hurt if yours is as "one" with the block as mine was.
 
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Old 03-25-2013, 06:12 PM
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thanks guys! i'll get on kit and let you know how it goes.
 
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Old 03-25-2013, 08:41 PM
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You will still need to set the timing. You cannot be sure that you will have the EXACT timing by just marking the dist. and putting the new one in.

It will probably start and run but the timing still needs to be set for proper operation.

bob gauff
 
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Old 03-26-2013, 05:34 PM
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thanks for the advice, do you know what the proper timing is?
 
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Old 03-27-2013, 06:03 PM
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well i got the old distributor off and the new one installed easily enough. I was careful to put the distributor and rotor back in the same position as well as the spark-plug wires, but alas she wont fire up, i'm sure its a timing issue. could anyone be kind enough to explain to me how to set the proper timing. sorry i'm not quite a mechanic, i learn fast and am somewhat handy, but just haven't been at this long and have a lot to learn, i appreciate any and all help greatly!
 
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Old 03-28-2013, 06:31 PM
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ok, I figured out why its not starting, there is no spark. I have power at the coil but the wires don't go straight from the coil to the distributor there is a box between them they both plug into, and that seems to be where I am losing power, but I don't know what this part is or what it does. can I bypass and hook the distributor directly to the coil?
 
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Old 03-28-2013, 07:19 PM
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I got it started! it fired up faster and easier than ever! I didn't even hear the starter engage. I just turned the key and VVVRRROOOMMMM!!!
I also looked and saw the part I was talking about is the electronic ignition amplifier, seems that was my problem all along, because I bypassed it and hooked directly up to the coil and bang!
my question now is this: should I order a new electronic ignition amplifier, if so what is the best one to get? also, what would be the effect of continuing to run straight off the coil?
 
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Old 03-28-2013, 08:35 PM
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Don't understand how this can work. Unless the distributor came off a series 2 or earlier with the contact points inside.??? But I'm prepared to be enlightened!!

I'm not familiar with the series 3 with electronic ignition but if it's similar to most other types it will have a hall/magnetic effect low current sensor in the distributor which triggers the external ignition module which provides a higher current pulse to the coil (-ve).

If it is a series 3 distributor then I wouldn't run it without the ignition amplifier.
 

Last edited by anjum; 03-28-2013 at 08:39 PM.
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Old 03-28-2013, 11:41 PM
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Originally Posted by stellar-warior
I got it started! it fired up faster and easier than ever! I didn't even hear the starter engage. I just turned the key and VVVRRROOOMMMM!!!
I also looked and saw the part I was talking about is the electronic ignition amplifier, seems that was my problem all along, because I bypassed it and hooked directly up to the coil and bang!
my question now is this: should I order a new electronic ignition amplifier, if so what is the best one to get? also, what would be the effect of continuing to run straight off the coil?


I'm a bit surprised as well. How exactly did you bypass the amp?

Anyhow, you can buy a complete amp new or used but in almost all cases it's the module inside that fails. It's a common GM module, Delco part number D1906. Easy to repace.

Cheers
DD
 
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Old 03-29-2013, 11:38 AM
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Long distance guess. He jumped the ballast resistor, not the amplifier .

Good move, even if by accident!!!
 
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Old 03-29-2013, 11:57 AM
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all I did was unplug the ignition amp from the coil and plug the distributer wires in their place on the coil. the distributer I am using is a pertronix aftermarket distributor designed for a series III
maybe the aftermarket distributor doesn't need the amp?
 
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Old 03-29-2013, 02:23 PM
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Ah! Mystery solved, Methinks! The Petronix distributors AFAIK have the amp built in. Is it pre-mapped for your xj6?
 
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Old 03-30-2013, 10:37 AM
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yes it is. thanks all for the help, the jag is running great!
 
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