backward step to advance

[plasticpig72]

When i last drove my 3000S when the engine was hot it started misfiring. After changing the ht coil twice + rotor arm the problem was still there.
The car has a Piranha electronic system which i think was fitted 25+ years ago.
I have taken a backward step and fitted Points + Condensor to see if things change.
When i removed the Piranha system i found it had been badly fitted with lots of joins in the cables and many of them changing colour along the cable run a real Rat's nest.
When i take the car for a run i will see if there is any difference
Alan

[plasticpig72]

I have also added a Fused Relay for the Coil supply so it always gets a full 12 volt + less power going through the Ignition Switch.
Alan

[Penelope Stopit]

It would have been better if you wired the blower, wipers plus anything else taking 6 amps or more through an 80 amp heavy duty relay or individual relays and left the coil supply direct to the ignition switch, my reasoning being that relays sometimes hold-in due to electrical faults, they sometimes stick and sometimes fail, an ignition switch with coil current flowing through it will last a long time

Don't get me wrong, I love relays and when I die I want to come back as one, but.....

[BIG DUNC]

Do the S series have an 80 amp fuse?

I know that most Griffs and Chims do.

However my early Griff hasn't and my 350i didn't, so I had always assumed that the S didn't.

However, I have never owned an S, so I could be wrong on that.

[plasticpig72]

Thanks for the replies and different ideas.
I fitted the Fused Relay so if there is a problem with Engine running on with Ignition turned off i can just remove the Fuse.
I don't fancy adding any more Relays at the moment.
For sure i will look at Electronic Ignition again at a later date.
Alan

[nwarner]

BIG DUNC said:

Do the S series have an 80 amp fuse?

I know that most Griffs and Chims do.

However my early Griff hasn't and my 350i didn't, so I had always assumed that the S didn't.

However, I have never owned an S, so I could be wrong on that.

Hi Dunc

I'm afraid that a 3000S is not an S series it's an M series without the roof. It has the Ford Essex engine a nd not the Ford Cologne of the S series. It also only has 4 fuses and the higest rated is 25 amps.

Regards

Nige

[Andrew Gray]

Alan if you decide to go back to electronic ignition i can recommend luminition although dearer than others i have had many trouble free miles with it on two cars and i know of others that are the same plug and play and once done right is bullet proof.

[BIG DUNC]

nwarner said:

BIG DUNC said:

Do the S series have an 80 amp fuse?

I know that most Griffs and Chims do.

However my early Griff hasn't and my 350i didn't, so I had always assumed that the S didn't.

However, I have never owned an S, so I could be wrong on that.

Hi Dunc

I'm afraid that a 3000S is not an S series it's an M series without the roof. It has the Ford Essex engine a nd not the Ford Cologne of the S series. It also only has 4 fuses and the higest rated is 25 amps.

Regards

Nige

I appreciate that, and am sorry for the error in terminology.
My point was I didn’t think anything earlier than early / mid 90s had a big fuse. I hadn’t realised that one been retro fitted to this car.

[plasticpig72]

Thanks Andrew,
I've made note of that good info.
We're having good weather here in Brittany and i just want to have a blast along the coast.
With the ragtop down of course.
Alan

[plasticpig72]

plasticpig72 said:

Thanks for the replies and different ideas.
I fitted the Fused Relay so if there is a problem with Engine running on with Ignition turned off i can just remove the Fuse.
I don't fancy adding any more Relays at the moment.
For sure i will look at Electronic Ignition again at a later date.
Alan

Well the mod to fit a Fused Relay to the Coil didn't last long. I started the Car and when i switched off the Ignition it carried on running. Yes you guessed the new Fused Relay stayed locked on and i had to remove the Fuse to stop the Engine. So i've removed the Relay and put back to original
Alan

[plasticpig72]

Well i've just come back from a drive along the Coast and my 3000S goes like the Wind fantastic.
With the standard new Points + new Condensor. I set the Timing Static at 10° advance, started the Engine and checked with a Strobe on Tickover (didn't need moving spot on).
I hope i can just drive it now with a big smile.
Alan

[Penelope Stopit]

plasticpig72 said:

plasticpig72 said:

Thanks for the replies and different ideas.
I fitted the Fused Relay so if there is a problem with Engine running on with Ignition turned off i can just remove the Fuse.
I don't fancy adding any more Relays at the moment.
For sure i will look at Electronic Ignition again at a later date.
Alan

Well the mod to fit a Fused Relay to the Coil didn't last long. I started the Car and when i switched off the Ignition it carried on running. Yes you guessed the new Fused Relay stayed locked on and i had to remove the Fuse to stop the Engine. So i've removed the Relay and put back to original
Alan

Did you test to see if the relay was faulty or if there was a voltage holding it in?

[anonymous-user]

plasticpig72 said:

Well i've just come back from a drive along the Coast and my 3000S goes like the Wind fantastic.
With the standard new Points + new Condensor. I set the Timing Static at 10° advance, started the Engine and checked with a Strobe on Tickover (didn't need moving spot on).
I hope i can just drive it now with a big smile.
Alan

Well done ! Nowt wrong with old tech Alan 😊