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Post by dave1800 on Mar 14, 2019 11:14:22 GMT
You should have asked! I had the version that used an inductive trigger and it worked flawlessly until the car met a Landrover head on that shattered the distributor among other things (not me driving!)but the main unit survived to live on with a replacement trigger.
I love the way they promote "silicon transistors" - it was the period when germanium transistors were still around. For younger readers, germanium transistors didn't like heat so the portable radios would cut out if left inside the car on a hot day - some more incredibly valuable info!
David
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Post by snoopy11 on Mar 14, 2019 17:54:53 GMT
mr P.
You have come back to the dark side !!!!!!
It’s such a proud feeling when the kids grow up 😛
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Post by Penguin45 on Mar 14, 2019 20:16:21 GMT
It works magnificently. Cruising at 50-60mph today - engine so much quieter and smoother. Pick-up feels better too.
I assume it is producing much more power, as on the way back the ball joint on the exhaust blew apart and dropped the rear end on the road. One ty wrap later and I drove the now roaring and juddering beast back home.......
Mick the Mustang to the rescue (again). New front section on in record time, as I have to work tomorrow and I have an unexpected trip to Corwall to make over the weekend.
Otherwise, I'm really chuffed with the results.
Chris.
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Post by dave1800 on Mar 17, 2019 2:03:55 GMT
Good to hear the ignition unit works well and am impressed the newly developed power was enough to blow the exhaust apart! Seriously though, you would not expect any improvement from electronic ignition (except a programmable unit) other than a reduction in maintenance over a standard system with all the components in good order. However, the fact that your points had closed to 0.010" means that your engine would have been retarded and losing power. The Mobelec uses a capacitor discharge system (CDI) that consumes much less power than the conventional system so it can mask issues such as voltage drops in the power feed. It feeds around 400v in a short pulse to the ignition coil and this can also mask some weaknesses in the coil, plug leads, distributor cap, rotor arm and even fouled plugs plugs. It relies on the coil being used as a transformer rather than storing energy as an inductor. Put simply the pulse is so fast it doesn't have time to lose energy on the way to the plug gap. The downside of the short pulse is that it's not good for emissions which is why the CDI system is rarely used now in cars. The last CDI system I recall was on the Saab 9-5 / 9000 but that used multiple sparks to try to address the emissions as well as a very sophisticated ant-knock system. I think you may wish to try and reduce your dynamo output closer to 13.8V rather than the 14.5V in deference to the now old components in the Mobelec. I believe the components were embedded in silicone rubber, great for longevity but making repair more difficult. The component that was the most common failure on the Saabs was the capacitor, it was charged and discharged up to 400 volts a hundred time per second at 3000rpm. David It works magnificently. Cruising at 50-60mph today - engine so much quieter and smoother. Pick-up feels better too. I assume it is producing much more power, as on the way back the ball joint on the exhaust blew apart and dropped the rear end on the road. One ty wrap later and I drove the now roaring and juddering beast back home....... Mick the Mustang to the rescue (again). New front section on in record time, as I have to work tomorrow and I have an unexpected trip to Corwall to make over the weekend. Otherwise, I'm really chuffed with the results. Chris. |
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Post by Penguin45 on Mar 18, 2019 10:48:56 GMT
I had no idea... I had the version that used an inductive trigger and it worked flawlessly until the car met a Landrover head on that shattered the distributor among other things (not me driving!)but the main unit survived to live on with a replacement trigger. You mean these bits?  IMG_6827 by Penguin 45, on Flickr Someone has taken the connectors off the end and I can't find any wiring info, so they're on hold for the moment. I take it the Landrover was a write off, whilst you just kicked a few bits of bodywork straight and drove home on points? Chris. |
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Post by Penguin45 on Mar 18, 2019 10:50:03 GMT
mr P. You have come back to the dark side !!!!!! It’s such a proud feeling when the kids grow up 😛 See post above - it ain't finished yet. C. |
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Post by Penguin45 on Mar 18, 2019 11:24:58 GMT
In the round, you are probably right, David. The car will be no more powerful, but it is noticably smoother and quieter, especially at speed, and the "pick up" in the mid-range has definitely improved. What this is really about is reliability. I have no real aptitude with points and the constant fiddling required to keep things in tune means that the car is rarely perfect - which annoys me! When I re-set the points to Mobelec's recommended .010", I was unable to insert the feeler gauge, as the points had closed to less than that in under three weeks, so I had to open them to get the setting. It's all gradually coming together though. The new vacuum advance capsule has finally arrived and been fitted, so the distributor is pretty much as new. It's had a new centre bush, advance springs, points, DD rotor arm and now the capsule, so mechanically it's "as new" which should be a big help long term. Fair point with the voltage regulation. I have been looking at possible solutions. Hugo Holden has a fascinating web site dedicated to car electrics and electronics - HERE. A lot of what he writes is way over my head, but the results are impressive. I may not be an electronics wizard, but I can follow a circuit diagram. There's a good afternoon's reading there, BTW! Anyway, drove down to Cornwall and back over the weekend without incident. 720 miles covered, just short of a pint of oil used and she returned about 33mpg, which for a 70mph long distance slog I thought wasn't bad at all. Chris. |
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Post by dave1800 on Mar 18, 2019 12:27:33 GMT
There can't be much wrong with the excellent economy over so many miles. The website you highlighted is fascinating, several articles I had not seen previously.
My only observation is that you need to identify why the points had closed so much so soon. Was it a case of just the heel bedding in or generally wearing too rapidly, I'm sure you lightly grease the shaft. Maybe a quality issue.
I had an ignition system that was triggered by the points when I was driving 100+ miles every day and the gap hardly changed over 20,000 miles after the initial bedding in. I opted for that system for my work car as it could be changed back to standard ignition in a couple of minutes by switching over two wires in the event of failure.
As your points had closed from 0.015" to < 0.010" that would have retarded the ignition by as much a 5 degrees which would have made the engine unresponsive.
David
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Post by Penguin45 on Mar 21, 2019 17:58:04 GMT
Broken exhaust ball joint addressed.  IMG_6832 by Penguin 45, on Flickr That's not going to fall apart. Weld tidied up and all refitted to the car ready for a weekend at the Restoration Show in the NEC. I'll be on the Wolseley Owners Club stand if anyone's attending - come and say hello. Chris. |
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Post by Penguin45 on Mar 26, 2019 18:04:28 GMT
And what a good weekend it was. See some pics HERE. Car ran down beautifully and all the way back. Then the tail pipe snapped. Completely rotten. Pulled the back half off, chopped the pipe near the side box and welded in a new length of pipe. All good. So, just the two silencers left, and one of those has been extensively welded. Going to have to deal with them soon..... In other news, a new set of Barum Brillantis 2s have been fitted. Ordered from MY TYRES, who are based in Germany, last week and delivered on Monday. £30 fitting and balancing and the steering has lightened up somewhat. Oh, a bit of research shows that the igniton unit is designed to run between 8 and 16vDC. Chris |
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Post by peppib on Mar 27, 2019 7:42:08 GMT
Chris - if you need silencers, Corsa ones are a good fit. That's what is fitted to Mo
Dave
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Post by Penguin45 on Mar 27, 2019 13:25:39 GMT
Cheers Mike, noted. Original Corsa I assume?
Chris.
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Post by peppib on Mar 29, 2019 7:40:16 GMT
How did you know my middle name? 
Yes, original Corsa
Dave
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Post by Penguin45 on Mar 29, 2019 12:00:16 GMT
DAVE! Senior moments are getting closer together.
C.
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Post by Penguin45 on Apr 7, 2019 11:46:47 GMT
Brake master cylinder has needed a splash of fluid every Sunday for a while now. This morning I crawled under the dash.  VOF707J by Penguin 45, on Flickr Yup, cylinder weeping. And the clutch cylinder as well. This maybe why I can't always get second. Hmm. Anyway, brake master replaced with the re-con one in the drawer unit. Seeing as I'd introduced air into the system, I changed one of the rear flexi hoses as well.  VOF707J by Penguin 45, on Flickr Not leaking, but the MoT man won't like the cracked sleeving. All bled off, brakes done. Will have to deal with the clutch next. Chris. |
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