| Author |
 Topic  |
|
|
Arran
United Kingdom
89 Posts |
 Posted - 02 May 2014 : 16:08:03
|
So, this morning was the morning of the month. I could collect the car with a working rev-counter. What a happy day. So in full sunshine I made a tour over the north end of our island back home, with a littel stop for a lunch and a little dram at the Arran Whisky Distillery.
Thanks for all who helped me.
Best greetings from the Isle of Arran in Scotland.  |
 |
|
|
Arran
United Kingdom
89 Posts |
Posted - 15 Apr 2014 : 18:06:51
|
I have sent to the link above (Speedy cables) on the 3rd of March my RVI rev-counter to be changed into a RVC one. I was then told after having not heard anything from them for over a week, the work need about 4 weeks. Today I got the message, the ref counter is finished and will be sent as soon as they have the £113.64 in their account, which I did inside 30 minutes.
I will comment to the work, once it is installed, but for now, I do not consider their service as first class.
Best greetings from the Isle of Arran in Scotland. |
|
|
|
Stella
France
132 Posts |
Posted - 01 Feb 2014 : 11:37:57
|
Hi All
May I say, it is a real pleasure to see such detailed replies to the wide variety of queries..
Thanks to all concerned..
Stella |
|
|
|
bigt80
United Kingdom
1052 Posts |
Posted - 31 Jan 2014 : 18:51:49
|
| Thanks for that comprehensive reply Peter; clearly explains it. |
|
|
|
pruyter
Netherlands
323 Posts |
Posted - 29 Jan 2014 : 12:34:50
|
Hi Bigt80,
Before 1974 (approx) the electronic tachometers were current impulse triggered (RVI). This means that the tachometer sense wire is connected in series with the ignition coil,usually between the ignition switch and the coil positive. Later electronic tachometers are voltage pulse triggered (RVC),which means that the sense wire is connected directly to the coil negative. The foregoing regards cars with negative earth. And yes, the combination of a RVI tacho and electronic ignition can cause problems ranging from a non working tacho to a tacho with strange readings. If the electronic ignition regards just replacing the contact points by a pick-up (magnetic or optical) there should be no problems. On the other hand if it regards a more advanced system of electronic ignition it is possible that problems occur. This problems could be rectified by adding one or more loops to the pulse wire at the back of the tacho. Another possibility is what John C. suggests: converting to a RVC tacho which Speedy Cables offer,..... at a cost of course.
Regards,
Peter |
|
|
|
bigt80
United Kingdom
1052 Posts |
Posted - 29 Jan 2014 : 09:58:51
|
Interesting, I'd not thought about that in connection with fitting of electronic ignition. I've got one to fit once I'm happy it is running OK with standard set up. What's the difference between RVI & RVC, sorry, not technical when it comes to electronics  . Cheers .G |
|
|
|
Arran
United Kingdom
89 Posts |
Posted - 25 Jan 2014 : 14:14:29
|
Well thanks for the moment, guys. I will see Angus next week somtimes and print your responses to take with me. The topic is not closed yet.
Best greetings from the Isle of Arran in Scotland. |
|
|
|
pruyter
Netherlands
323 Posts |
Posted - 25 Jan 2014 : 10:43:44
|
As I wrote before: with a device as for example a magnetic pick-up like the one from Powerspark the rev counter should work. I have a Tiger with a Lumenition electronic igniton with a optical pick-up and the rev counter works without any modification.
It really depends on the sort of electronic ignition!
Regards,
Peter |
Edited by - pruyter on 25 Jan 2014 12:46:34 |
|
|
|
johnc
United Kingdom
212 Posts |
Posted - 24 Jan 2014 : 20:15:08
|
Hi,
I fitted a replacement electronic distributer to my SIV and the rev counter needed to be replaced with an RVC type.
I think this happens with all electronc ignition upgrades.
It is possible to convert RVI to RVC.Various companies offer this service for less than £100;try www.speedycables.com.
Regards
John
|
|
|
|
pruyter
Netherlands
323 Posts |
Posted - 24 Jan 2014 : 15:12:51
|
Arran,
what kind of electronical ignition do you have? If it is a system which only replaces the contact points by for example a magnetic pick-up then the rev counter should work. In some cases it helps to make more than one loop with the white pulse cable on the back side of the rev counter. The pulse cable system is not quite organised the same as it is for the Series Rapiers ( I have such a car) but the principle is the same.
Some very advanced electronical ignitions cause the rev counter not to work, but it can be done to make it work.
Regards,
Peter |
|
|
|
Arran
United Kingdom
89 Posts |
Posted - 24 Jan 2014 : 12:36:19
|
Hello
Angus from the local garage is not able to fix the not working rev counter. He claims that something with the installed «transitorized ignition» can not be synchronised (or so).
Does anyone have experience with this fact? For me this is quite bad, as I am using the revs more than the speed counter.
Best greetings from the Isle of Arran in Scotland. |
|
| |
Topic |
|
Rev counter does not work
