TR6 - BANG, fuelling advice please?

[Adenauer]

I took the TR6 out for a run yesterday, everything was fine until around 30 miles, it then backfired in spectacular fashion and died on me. It turned over but wouldn't run.

My mechanic chap round the corner had a look at it and saw that the fuel filter was filthy and blocked. He replaced it and it ran fine again for the rest of the day.

However, this morning I walked into my garage and it stunk of petrol. I fired up the car, it ran for a few seconds and then died. It would turn over but I couldn't re-start it.

I'll be having a look at it after work but does anyone have an idea of what it might be?

Fuel pump?

Split fuel line?

Something related to yesterday's shenanigans?

[Adenauer]

Sorry, carbs.

[Adenauer]

Thanks chaps.

The tank is 3/4 full.

The garage still stinks of petrol but oddly enough there's no wet patch on the garage floor, and I can't find any obvious signs of a leak.

Busy today but tomorrow afternoon I'm going to get Mrs A to turn it over whilst I'm under the bonnet, maybe I'll see some petrol coming out of a split hose then?

I'll join a US TR6 forum, good shout

[Adenauer]

tapkaJohnD said:

Smell could be residue after a filter change, which will inevitably spill some.

The question you don't ask and your mechanic friend ignored is, where did the gunk in the filter come from, and what was it? It could only be from the tank.
Have you or your DPO had that lined, painted inside or otherwise leak-treated? Modern alcoholled fuel is very destructive, and may cause that to flake off. Or, was there rust in the filter?
Either way, there will have been more, so inspect the filter. Is it blocked, again? That would explain the symptoms this morning.

Can you look into the tank? One of those mobile phone endoscopes might be a cheap, safe way to do so.

JOhn

I really think the old fuel filter was just exactly that, very old, it certainly looked it and after 50 odd miles with the new one it was still spotless.

[Adenauer]

I'll do both, rev

[Adenauer]

Grumbly said:

When I first got my TR6 it would regularly grind to a halt with a blocked fuel filter. A replacement aluminium fuel tank cured the issue eventually, all attempts at cleaning out the original tank having failed dismally.

Something like this?

https://www.ebay.de/itm/Passend-Triumph-TR6-Alumin...

[Adenauer]

First things ordered to swap over at the weekend, all of the fuel lines, spark plugs, and distributor rotor arm.

That's following all of the 'things to do first' stuff on the American TR6 FB group.

I'll probably royally fk it all up over the weekend now

[Adenauer]

Grumbly said:

There is little point in changing fuel lines without resolving the source of the blockage. You could be lucky and it is just debris in the tank, but if it's rust from the tank itself the issue will reoccur and you will be back at square one.

I'm changing the fuel lines because a few of them look old and look to be splitting (hence the cause of the petrol stink).

I've checked the fuel filters and they're all clean.

Plugs and distributor rotor change tomorrow, fingers crossed.

[Adenauer]

hilly10 said:

I changed my fuel tank during the winter as I used to get blocked injectors and the Bosch Type pump used to sound like a Bees next due to debris. Also old fuel line do allow vapour fuel smells due to the Ethanol.

Thing is, it didn't stink for the first month that I had it, and it does now, not the nice pong of a classic car, but the pong of fresh petrol, hence I think there's a leak somewhere.

[Adenauer]

Thanks Yertis

Another quick question if I may?

How do I change the rotor, is it just a matter of taking off the distributor cap, pulling the old one off and sticking the new (red) one on?

Also,is it easy to put a new petrol pump in myself if that turns out to be the problem?

I have the mechanical prowess of a polo mint.

[Adenauer]

Yertis said:

Adenauer said:

Thanks Yertis

Another quick question if I may?

How do I change the rotor, is it just a matter of taking off the distributor cap, pulling the old one off and sticking the new (red) one on?

Also,is it easy to put a new petrol pump in myself if that turns out to be the problem?

I have the mechanical prowess of a polo mint.

Fire away, always happy to help if I can. With ref the rotor, you've already got the most import bit right (ie a red one, I'm guessing from Martin the Distributor Doctor, personal friend of mine). Your method is also correct. Personally I'd change the cap too. With regard the pump I have to admit that my experience with non-PI Triumphs is with the GT6, and I don't have the TR manual to hand. I *imagine* your pump if original is down on the left of the block, and (if so) is easy to change. However you may have some other arrangement.

I learned most of what I know from being compelled by circumstance to maintain my own TR as an impecunious graduate back in the '80s. If you get the original Triumph TR6 Manual (the brown one) and a parts catalogue you'll save yourself a fortune. You'll develop a different kind of relationship with the car.

Thanks

I'm in Germany so got the rotor and other bits from Limora. Next day delivery too!

I haven't ordered a cap but will do so.

The pump is as you say, bottom left of the block, I'll change that next if what I do over the weekend doesn't help.

Right, I'm off to take the stinky old thing to bits

I have the brown manual already, came with the car, and a parts catalogue!

[Adenauer]

Ignition coil = sorted, all good again.

Oh and the source of the petrol smell, probably something to do with this.........

Split fuel hose.



Pipe hanging off the side of the carburetor.

Edited by Adenauer on Monday 27th July 08:02

[Adenauer]

rev-erend said:

Good work.

Not such a polo after all.

Modern fuel eats hoses for breakfast.

I'm replacing all of them, oh, and I put a fire extinguisher in the car last weekend as well

[Adenauer]

Running okay, no fuel pump issues, I have bought one of these which I still have to fit and that should be that

https://simonbbc.com/Powerspark-Electronic-Ignitio...