MG
The Classic Marque

Didn't get a chance today to test it in the sun. Maybe tomorrow.

But really, the only thing I've got left that I haven't tried, is a new rubber neck.

I messaged three suppliers on ebay.

I asked ---

Is this ethanol resistant/compatible?

Reply one.

aptoolstore on Ebay.

"Hello,
This hose has a fluorosilicone lining, which is the fuel...

XPAG and XPEG big-end bolts are the same, and I also have some bolts with two flats on the head, one flat smaller than the other.
However, I found that the heads of these bolts, if re-used several times, can be ‘pulled off’ by the tension produced when tightening up the nuts to the required torque. I would suggest using bolts with only one flat on the heads.

Well you have certainly been more thorough than me with your investigations. I will be interested to hear your final conclusion. Or, more to the point, how (if) you eventually solve the issue. That's a catch-all in case your final conclusion turns out not to be the true answer and doesn't solve it! But do let us know.

Do you have a stock points plate you can install just to verify the Pertronix isn't the problem? They do fail from time to time.

Oops, for some reason my earlier post didn't stick. I just remembered that Bud was one of the pioneers in the use of the lobe sensing Pertronix. Jud

Colin
Good result! It did seem to point to an ignition fault which, assuming plug and leads were good, was almost certainly the coil.

When the weather is cooler, the smell is less. But when it's warmer, the garage stinks. It's never been as bad as this. The last couple of years it's got worse. The garage smells, and when I open the boot, it smells far worse. It's definitely the main source.

I've ruled out the ends of the rubber filler too. Clips are good and tight. No seepage or staining at all.

Clear...

Yep, I previously thought it was the sender gasket, then the fuel pump diaphragm.

I've since checked the sender 3 times Guy. Bone dry and no odour round it.

When I had the tank out in the summer, I sealed up the tank outlet, and the stub of the filler neck.

I had about a gallon in it. I upended it, no drips. I left it in the strong sun for about 10 min's. It's black and...

Anamn, when you last raised this I said I, or rather my car, was suffering from smell problems too. On mine ( the Frog) I tracked it down to a leaky cap on my petrol can in the boot!
But since then I have been driving the other car a bit more often and that suffers the same. Though not on every outing?. Like yours, I cannot pin point any actual leak. But when it is apparent the fumes are stron...

Oooer.

I asked AI to clear up the confusion. Lol.

https://bitly.cx/B46r

AI asked screwfix. 🤣