Fuel Issue

[steve.n]

I had a similar issue a few years ago, car running fine but would suddenly cut out when coming to a halt, after changing many ignition components the problem was resolved with a coil change. I have Luminition fitted adjacent the fuse box internally (13 years) with no problem, standard engine bay, no electric fan etc. I was about to replace the Luminition when I thought I would try the coil first as it had only been fitted for a couple of years. I think if all parts are working fine there should be no need to fit fans/move/insulate the coil etc.

[Bob Heritage]

Didn't they change the construction of coils some years ago? are they not filled with oil, Russ will probably know the answer to this. I was thinking of changing my coil, it runs OK and does not have the hot start problems but it seems to hold back in the higher MPH like is has a rev limiter in it. I have an AC Delco coil at the moment, any suggestions to go with a standard Luminition that has been trouble free for 20plus years?

Bob

[DJT]

Didn't they change the construction of coils some years ago? are they not filled with oil, Russ will probably know the answer to this. I was thinking of changing my coil, it runs OK and does not have the hot start problems but it seems to hold back in the higher MPH like is has a rev limiter in it. I have an AC Delco coil at the moment, any suggestions to go with a standard Luminition that has been trouble free for 20plus years?

Bob

Bob,

Read Derek's last post in this thread re Lucas Sport Coil: http://www.stag.org.uk/forum/showthr...hampion-or-NGK

[Bob Heritage]

Bob,

Read Derek's last post in this thread re Lucas Sport Coil: http://www.stag.org.uk/forum/showthr...hampion-or-NGK

I was thinking along those lines Dave, but there was also talk about sports coils being for the later performance Luminition and are they 6v

Bob

[Arbman Al]

I'm pretty sure some people have relocated the coil to the nearside wing, which should be cooler than on top of the engine.

Also how about getting some silver paint and painting your black coil.... might work?

Al.

[Stagsongas]

I'm pretty sure some people have relocated the coil to the nearside wing, which should be cooler than on top of the engine.

Also how about getting some silver paint and painting your black coil.... might work?

Al.

Al,

I guess I could go all spaceman/blue peter and cover it with baco-foil

Seriously though, it seems that my car runs its coil hot and I need to find a way to deal iwth that. The model of Lumenition unit and it's age will produce a combination, along with the type of spark plugs fitted, the coil, the wring condition etc. and all else are contributing to practically unique circumstances for just about every car. And we must not forget that today, the work of this one little coil is done by 8 seperate coils, I wonder that it works atl all to be honest! I' might be partly to blame as LPG makes a little more demand of igniton, but not hugely so. In short, most engines run fine with 80% of perfect ignition output, whereas LPG demands 90%. If you only have 85% available you have a problem on LPG but not on petrol. This is where the LPG system gets the blame every time, but the ignition system is the real culprit.

Still, if we find a way to reduce underbonnet heat by allowing it to escape more readily, that cannot be a bad thing. But for me, it ain't goin' to be bonnet louvres or spoilers (aptly named IMHO).

Regards

Steve

[Mike Stevens]

Steve, would I also know you as 'Jags on gas'?

All very interesting and good controlled experimentation there!

Cheers,
Mike.

[wilf]

Glad to be of assistance. I went through 3 new coils before I found one that was happy in the heat. I wrapped it in "space blanket" material to help it reject heat from its surroundings (mainly the block), and it seems to be quite happy, even though it gets too hot to touch. I always carry a spare...............

[Stagsongas]

Steve, would I also know you as 'Jags on gas'?

All very interesting and good controlled experimentation there!

Cheers,
Mike.

Well knock me down with a feather! I knew I'd be 'outed' sometime, but that didn't even take a week

Have we met Mike?

Regards

Steve

Stags and Jags on Gas

[Stagsongas]

Glad to be of assistance. I went through 3 new coils before I found one that was happy in the heat. I wrapped it in "space blanket" material to help it reject heat from its surroundings (mainly the block), and it seems to be quite happy, even though it gets too hot to touch. I always carry a spare...............

Well Mr Wilf, thanks for the tip, you are obviously a very wise man.

Always carry a spare Stag.

Regards

Steve

[wilf]

LOL, sometimes I wonder if I will completely fill the boot with "spares". So far I have stopped at most ignition components, both fan belts, oil, water, ATF, set of bulbs, and after a recent adventure, I shall have some spare petrol in future, too! I have seen far more extensive spares kits in other member's cars, I think maybe pessimism is a required trait for a Stag owner.

[Arbman Al]

I just take my AA card - better for the fuel consumption instead of boot load of spares.

[Mike Stevens]

Well knock me down with a feather! I knew I'd be 'outed' sometime, but that didn't even take a week

Have we met Mike?

Don't think so, but I have an X300 as well as all the Triumphs (and a 1949 LandRover) and dip into Jag Lovers as and when. I read yesterday part of your latest 'fun' - also with coils! Still struggling with 123 Vs 456 then?

The longest trip I've done in the Stag since its restoration completion last year is only 50 miles but I'm going to look at the coil and its mounting heat-wise. It is the original coil and I'm wondering if new ones aren't made "like they used to be".

Cheers,
Mike.

[jleyton]

I'm pretty sure some people have relocated the coil to the nearside wing, which should be cooler than on top of the engine.

Al.

My car had the coil mounted on the inner wing, behind the left hand suspension tower, when I bought it and it has the added advantage of making some other jobs easier

Also, I've never had any problems with my Lumenition on the bulkhead (other than the connector which was not heat related)

Cheers

Julian

[Stagsongas]

Don't think so, but I have an X300 as well as all the Triumphs (and a 1949 LandRover) and dip into Jag Lovers as and when. I read yesterday part of your latest 'fun' - also with coils! Still struggling with 123 Vs 456 then?

The longest trip I've done in the Stag since its restoration completion last year is only 50 miles but I'm going to look at the coil and its mounting heat-wise. It is the original coil and I'm wondering if new ones aren't made "like they used to be".

Cheers,
Mike.

Mike,

Gosh, you'd have to be really bored to read the entire broken 300 diatribe. I'm bored of the 'hobby' X300 in particular. I have not touched it for 2 weeks as 'spare' time is taken up by so many things, especially during weather like the last few days. However, I have resolved to fix it or give up next week, I'm haemoraging lost income on the job.

I just read your 'can the fan touch the rad' thread, vey useful thanks and I'm so pleased I chose to remove mine, it was noisy and had a lot of play. I'm definately going without for now, and long term I have a cunning plan....Lots of double fan X300 and 308 rad. shrouds around for next to 'nowt these days, and one of those in place of a single Kenlowe, perhaps with the second one driver switchable might just be the way to a viscousless (if that's a word!) future.

Someone on your thread was bang on the money by saying the blades can bend if the RPM are too high (aerodynamicist hat on). They will do just that as their coefficient of lift will increase - CL = 1/2pV2s where V is the velocity (RPM if you like). Also note that the worst effect by far will manifest if the fan is immersed in water. Whatever, in air or water the 'fan' changes temperament, becomng 'propellor'. As it is not easy for your new prop. to pull the car along, the blades bend instead (this is called 'coning') and you can see that effect by watching a helicopter hovering.

I'll let you know what I come up with for coil and CDi cooling.

Regards

Steve