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My New 3.2S

abercanadian
Posts: 1500
Joined: Tue Oct 16, 2012 6:50 am
Location: Vancouver Island

Re: My New 3.2S

Postby abercanadian » Thu Nov 12, 2020 6:18 pm

First swap the rotor, there's a resistor in it that goes open circuit.

Larry
94 XJ40 VDP vin 701729
Oyster Metallic/Doeskin on Aero Alloys
240,000 km/149,000 Miles
Daily Driver

94 XJ40 SOVEREIGN vin 703632
Diamond Blue Metallic/Barley
111,000 km/69,000 Miles
Parts Car

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Fri Nov 13, 2020 11:57 am

Thanks for the reply, gents. I didn't notice the revs increasing when I cranked it over, Katar, but to be honest I wasn't focussing on the rev counter. I'll look again before I change the CPS.

I have ordered a new CPS from Moss Europe (£43 incl. delivery) and am now ordering a distributor cap, rotor and ignition leads from British Parts to accompany a new set of NGK spark plugs that I've had sitting around unopened since 2012!

I'll replace each item and try to start the car in turn to try and isolate which item was the cause of the problem. I'm not too concerned about replacing all these things now - even though that wasn't the plan - as they were advised in the list three years ago and I was planning on doing them sooner rather than later anyrway - just not so soon!
One thing I noticed was that one of the spring clips that hold the cap onto the distributor is broken - rusted and snapped just where it curves onto the cap itself. It does still help to keep the cap in place, but not as well as the other side, which is also showing signs of rust. Can these clips be purchased separately/ perhaps removed from a used distributor, or are they part of the distributor itself?

Regards
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Wed Nov 18, 2020 2:10 pm

The parts arrived today and I thought I'd go for the easiest fix first - the CPS.

But I decided to start the car before doing any work on it, just to see what happens. It started at the first turn of the key and idled perfectly for a few minutes until I switched it off! So clearly it's an intermittent problem but I don't know the cause.
I decided to replace the CPS anyway as it's an easy job. Once I'd fitted the new one, I tried to start the car again and it started fine. I'm not sure if the new CPS fixed the problem - only time will tell.

But it's booked in for its MOT session next Wednesday so I'll keep starting it up daily over the next seven days to see if the non-starting problem returns. If it does, I'll replace the rotor arm, distributor cap and HT leads, starting the car after each item in turn to see if they are the cause of the problem. What a pain :roll: .

Cheers for now
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia

abercanadian
Posts: 1500
Joined: Tue Oct 16, 2012 6:50 am
Location: Vancouver Island

Re: My New 3.2S

Postby abercanadian » Wed Nov 18, 2020 7:09 pm

Well, congrats on getting her started again, although I wouldn't say replacing the CPS was the easiest job!
I would have thought the rotor swap would be right up there with "easiest"!

One thing about the XJ40 rotor - don't think of it as part of a "replace cap wires and rotor" routine as you would with any ignition system of this type ..the rotor on the XJ40 is somewhat unique in construction as it doesn't have a solid brass top section but a two part affair that uses an electrical component potted in epoxy to bridge the connection between the coil connection at the centre and the business end that distributes the spark to the various plug connectors inside the cap.

This electrical component can and does fail, causing erratic running or idle as it begins to break down.
Eventually this will lead to total complete failure with an open circuit and a no-start condition. Just this summer I was immobilized by this very problem so the car had to be flat decked back home. I didn't have a spare in the car, my spare was in the garage. :oops:

Larry
94 XJ40 VDP vin 701729
Oyster Metallic/Doeskin on Aero Alloys
240,000 km/149,000 Miles
Daily Driver

94 XJ40 SOVEREIGN vin 703632
Diamond Blue Metallic/Barley
111,000 km/69,000 Miles
Parts Car

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Wed Nov 18, 2020 8:15 pm

Hi Larry,

Yes, I think you're right about which job is easiest. But that means I've already done the most difficult one so it'll just get easier from now on :lol: .

Regarding the rotor replacement, if the car continues to behave and I make it to the MOT next week, I'll probably keep the distributor/rotor parts in reserve for when I do a full service. There'll be so much other serious rust and suspension work to do on the car before I have the luxury of doing basic service items - as if the car was a normal daily driver :) - that I'll hold off on the little things and keep them in reserve as a sort of "treat" for me and the car prior to putting it back on the road.

Regards
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Tue Nov 24, 2020 8:21 pm

Seems like it was the CPS after all as after I replaced it, it fired straight up and has continued to do so since Friday. MOT failure time tomorrow. Should make for interesting reading :D .

I do notice that despite having a new alternator and battery, and always having a trickle charger connected to it, that the ignition light stays lit even when the car is running. Does anyone know why this may be?

Regards
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia

pimgmx
Posts: 3440
Joined: Tue Jul 08, 2014 12:07 pm
Location: South East of the Netherlands

Re: My New 3.2S

Postby pimgmx » Tue Nov 24, 2020 9:15 pm

So far, so good, Aidan!

Ignition light: which warning light do you mean?
Can you describe its icon?

the daily: 01 S8 http://bit.ly/2kIwP4m
the eyecatcher: 93 Insignia http://bit.ly/1iGrmsU
the GT: 89 XJS http://bit.ly/1WQGpC5
the diva: 88 Biturbo SI https://bit.ly/3dzdvAL
the ex: 93 3.2 http://bit.ly/14GTNrq

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Tue Nov 24, 2020 9:29 pm

pimgmx wrote:So far, so good, Aidan!

Ignition light: which warning light do you mean?
Can you describe its icon?


Thanks Pim,

Yes it's the warning light with the car battery icon, and it is in the strip of warning lights below the main instrument dials, roughly between the fuel level gauge and the rev counter. It's a red warning light.

Regards,
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia

pimgmx
Posts: 3440
Joined: Tue Jul 08, 2014 12:07 pm
Location: South East of the Netherlands

Re: My New 3.2S

Postby pimgmx » Tue Nov 24, 2020 9:34 pm

Under normal circumstances that suggests a failed/failing alternator, or best case that your battery isn't charging...
That could be bad news, but likewise it could be as simple as a wire/connector!

You might try and ask the MOT tester for a favour, I guess he should have the hardware to test your alternator output? :roll:

the daily: 01 S8 http://bit.ly/2kIwP4m
the eyecatcher: 93 Insignia http://bit.ly/1iGrmsU
the GT: 89 XJS http://bit.ly/1WQGpC5
the diva: 88 Biturbo SI https://bit.ly/3dzdvAL
the ex: 93 3.2 http://bit.ly/14GTNrq

Aidan
Posts: 848
Joined: Fri Jun 26, 2009 11:57 am
Location: Tonbridge, Kent

Re: My New 3.2S

Postby Aidan » Tue Nov 24, 2020 11:28 pm

Thanks Pim.

I really hope it's not battery or alternator since they're both new - or about a year or two old. Perhaps tomorrow's check-up after the MOT will reveal all...!

Regards
Aidan

1994 Moroccan Red XJ40 3,2 Sport ("Ruby")
1995 Jade Green X300 3,2 Sovereign ("Jade")
2005 Cedar Green Pearl Volvo XC 90 SE - Sold
2007 Colorado Red Ford Galaxy Ghia


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