Coil question

Post by **MarkyB** » Sun Aug 09, 2009 7:14 pm

I've just realised that my coil is mark with 1 and 15 not - and + .
Anyone know which is which?
I think I'd assumed the 1 was a -

Post by **bmcecosse** » Sun Aug 09, 2009 7:29 pm

Very strange ! How old (or new!) is it?

linearaudio · Post by **linearaudio** » Sun Aug 09, 2009 11:25 pm

I've had coils on cars marked that way, years ago though so can't remember. But if it works leave it be!

Post by **Mick_Anik** » Sun Aug 09, 2009 11:46 pm

The negative wire from the coil goes to the distributor, in a negative-grounded system.....cream with a black tracer stripe on mine.
I too remember a coil with odd markings like yours - a dim and distant memory now, though

Post by **LouiseM** » Mon Aug 10, 2009 6:40 am

Sounds like a Bosch coil. If so, 1 = Negative and 15 = positive.

Post by **bmcecosse** » Mon Aug 10, 2009 7:04 am

I don't doubt you are correct LM - but how do you know that ?

Post by **LouiseM** » Mon Aug 10, 2009 7:21 am

Probably the same way that you know the things that you do

Post by **MarkyB** » Mon Aug 10, 2009 8:26 am

No idea how old the coil is, it was on the car when I got it.
Hopefully LouiseM is right and I'd connected right using more luck than judgement

.
The other thing I can tell you is the plastic part isn't black, it's dark red/brown.

Post by **PSL184** » Mon Aug 10, 2009 4:12 pm

MarkyB wrote: The other thing I can tell you is the plastic part isn't black, it's dark red/brown.

Definately a Bosch coil then in that case....

Post by **Mick_Anik** » Mon Aug 10, 2009 6:00 pm

I'm sure now that my previous post was of no use......reading subsequent posts it seems that you didn't have the coil disconnected, but just noticed the markings. But even if you'd had the coil off, my post wouldn't have helped

.

Post by **MarkyB** » Mon Aug 10, 2009 8:31 pm

No worries, it's the thought that counts

.

Post by **Mogwai** » Mon Aug 10, 2009 9:03 pm

The terminal numberings are a DIN standard commonly used on Bosch components to identify the type of circuit. 30 would be a live feed from battery. 15 ignition feed etc

Post by **littleblackflash** » Wed Aug 12, 2009 8:36 pm

Mogwai wrote:The terminal numberings are a DIN standard commonly used on Bosch components to identify the type of circuit. 30 would be a live feed from battery. 15 ignition feed etc

Perfect answer. Most car companies use 1,15 and 30.

As I'm in Fishbourne, I now know who to ask when I have an electrical fault

Post by **Mogwai** » Sun Aug 16, 2009 7:05 pm

have I just droped myself in it there

Post by **bmcecosse** » Sun Aug 16, 2009 7:42 pm

Not heard of this DIN standard - seems strange nobody else uses it - if it's a 'standard' ! But thanks for the info - another good reason to avoid Bosch !

Post by **Mogwai** » Sun Aug 16, 2009 7:54 pm

the most common usage is on relays. pull one out of a modern it should have the pins marked somthing like 30, 87,85, 86

Post by **bmcecosse** » Sun Aug 16, 2009 8:07 pm

Ahh - yes indeed - I see now. I have seen relays etc numbered like that. Thanks for the info!!