miss fire 1098

[bmcecosse]

I'm surprised you can still buy N5 plugs! The N9Y is the 'extended nose' equivalent, and generally the preferred option. However the important thing is that you now have new Champions - and I'm sure they will be fine.

[Steve Linfoot]

Well took the moggy out for a spin with new t stat fitted and guess what it still misfired,after 15 miles I took of the new HT leads and put some old copper core leads on as someone said to me they had had a similar problem on a spitfire and as soon as he fitted copper core leads the problem went away,so I thought I've go nothing to loose, only I wasn't quite so lucky.
Going to a classic car meeting tomorrow ,hopefully someone will come to my rescue.

[Steve Linfoot]

Jaywhy,
You said you resealed your exhaust to the manifold ,do you mean you replaced the manifold gasket between head and manifold,is a leak in this area really going to result in a misfire!
Steve

[Jaywhy]

Hi Steve
No I re-sealed the exhaust to the manifold outlet connection fitting a new exhaust manifold clamp. The exhaust was blowing and making the engine run really rough. For what they cost is it worth changing the condenser again, because I was told there been quite a number of rogue ones on the market?

[Steve Linfoot]

Jaywhy,
Thanks very much for your responce, I to had to remake my exhaust to manifold connection as well,so that done as well.
I have no condenser as I'm using electronic points.
Been out today to a classic car meeting and one chap said it may be worth changing the gaskets between the carb and the manifold and manifold to the head,so I guess that's the next step.
I will keep you all posted.
Thanks
Steve

[bmcecosse]

[Jaywhy]

Steve
Did you get anywhere with the mis-fire?

[panky]

Did you replace the rotor arm? I had electronic points fitted and the car conked out on me. As luck would have it this happened on the busiest round a bout in town so I was under a bit of pressure and did the easiest thing I could and put the old rotor arm back in - bingo it fired up, I don't trust the ones that come with the electronic points. Failing that check the engine earthing strap is intact.

[AnimalJack]

just a thought as Ive had a similar thing with my van recently and today I decided to drain the petrol tank and flush it out a few times - each time filtering the petrol ...........I was amazed at the amount of stuff that came out and so far its running really well