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What did you do to your 700 series today ?

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Old Jun 10th, 2018, 16:43   #21
Laird Scooby
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I was interested in your reasoning Jon and you've explained it well, with a valid argument. The only thing you have left out is radio interference, especially if you're fitting copper-cored HT leads.

Normally a resistor plug eg BCPR6ES will provide a bit more interference suppression than the standard BCP6ES non-resistor plug. It can, surprisingly, provide a stronger spark as well, with more accurate spark timing which is all good for economy.

If you're not getting radio interference thought there's probably very little to be gained using resistor plugs as you rightly point out, however you may well find because of supply and demand that the resistor plugs are considerably cheaper than non-resistor lugs these days.
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Old Jun 10th, 2018, 17:45   #22
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Quote:
Originally Posted by Laird Scooby View Post
I was interested in your reasoning Jon and you've explained it well, with a valid argument. The only thing you have left out is radio interference, especially if you're fitting copper-cored HT leads.

Normally a resistor plug eg BCPR6ES will provide a bit more interference suppression than the standard BCP6ES non-resistor plug. It can, surprisingly, provide a stronger spark as well, with more accurate spark timing which is all good for economy.

If you're not getting radio interference thought there's probably very little to be gained using resistor plugs as you rightly point out, however you may well find because of supply and demand that the resistor plugs are considerably cheaper than non-resistor lugs these days.
Radio interference is not an issue, you may well remember the old days when we used to fit those capacitors ?

I have a good source for NGK plugs at good prices...I've lots of cylinders ! And you know using best quality parts in the ignition system guarantee all should be well - and remember these B230ks don't make big horsepower, good torque though.

Off topic - I've seen a trick supercharger install in a 740 - that was interesting.

Jon.

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Old Jun 10th, 2018, 18:43   #23
Laird Scooby
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Capacitors, in-line chokes and all the other tricks to improve interference!
Been there, T-shirt etc.

Finding the NGKs at a good price is pretty much essential, i tend to look on fleabay for sets of 6 for about a tenner delivered from carpartssaver/carparts4less/eurocarprats or go to my local parts factor and haggle for a deal on 12 or 18, depending how many i'm doing.
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Old Jun 10th, 2018, 21:52   #24
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This weekend, this arrived, so I cleaned it thoroughly and am looking forward to fitting it



Also, paid for my new air-con pipework to allow me to (hopefully) get the system working on my 740 turbodiesel in the coming weeks.
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Old Jun 10th, 2018, 22:24   #25
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Those are brilliant Jim! Surprisingly sturdy for what they are as well!
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Old Jun 11th, 2018, 19:46   #26
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Today, some free time so begin some detailing on the 744, the channel around the boot aperture, especially that under the rear window fills with debris and then during heavy rain cause the boot to get wet.

So. I removed the seal in the offending area and cleaned and polished the paintwork in the channel and cleaned the rubbers with Autoglym rubber lubricant - oooeer !

Here's a pic.

Jon.
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Old Jun 11th, 2018, 20:04   #27
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Quote:
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Capacitors, in-line chokes and all the other tricks to improve interference!
Been there, T-shirt etc. ..................
To the matter of capacitors, and currently having my mind on alternators. I notice that there is a cap. on the back of it! Bosch Pt No 0 290 800 053 @ 2.2 µF.

Back to the thread .... cleaned the car Saturday evening and covered it today in dust as I attacked the front garden with the mower and strimmer!! Hey Ho
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Old Jun 11th, 2018, 22:42   #28
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Painted on a bit of additional waxoyl underneath where it's been welded for the MoT. Will give it another dollop tomorrow.
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Old Jun 11th, 2018, 22:49   #29
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Quote:
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To the matter of capacitors, and currently having my mind on alternators. I notice that there is a cap. on the back of it! Bosch Pt No 0 290 800 053 @ 2.2 µF.

Back to the thread .... cleaned the car Saturday evening and covered it today in dust as I attacked the front garden with the mower and strimmer!! Hey Ho
Typical value for a suppression capacitor Bob, especially on an alternator or coil come to that.

Sounds like you need to get the hose out again!
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Old Jun 11th, 2018, 23:00   #30
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Finished the plumbing on the "new" fuel system the other day. Almost finished converting it from k-jet to lh2.4 but I decided to make things more complicated by running two pumps and a swirl pot. 7m of fuel hose required, despite most of the return still being the original hard line.
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