The MGF Register Forums

The jiggle valves often become blocked up over time - particularly if there has ever been a head gasket event (nameless) - the ball then gets stuck and they don't jiggle. They are very easy to clean and one is very easy to access, but the inlet manifold one means removing the inlet manifold. You can...

One at the other end of the thin return feed pipe to the expansion tank and one at the inlet manifold.

Maybe try cleaning the coolant sensor connector and check the wiring back to the ECU?

There is a U shaped spring clip which sits tightly into a groove in the solid union on the cable outer. If you have removed it the union can still be held in by a mix of crap and corrosion. Wiggle it robustly!

It won't be an airlock - which would purge either through the injectors or the rail pressure relief back into the tank if the pump is pressuring up the rail correctly. If you measured the pump voltage with a digital multimeter it probably uses an algorithm to calculate voltage before displaying it, ...

I had a similar story on an F unused in 7 years. It turned out to be the fuel pump. You should be able to hear it for 3 seconds when first switching on the ignition. Generic replacement fuel pump motors will only work if the ageing plastic pipes can hold their pressure which is about 3 bar. I got ra...

Broadly agree about total fluid, between 2 and 3 litres in my experience but only a ballpark guesstimate looking at what remains in a 5l container. I think the air exclusion can be done if, as Rob recommends, you don't try and lift the car on jacks to make the pumping less arduous - it prevents the ...

"100 - 150,000 miles"
In my experience you can add 100,000 miles to that, and some!

Careful Jonny, I ended up running 3 for a decade - it can be difficult to part with them!

Free to a good home.

I've missed you!

He was always a bit haphazard with communication, so I stopped using him years ago and learned to do it myself. I don't know the answer to your question but there are a couple of others who are well reported - John of Roughluck racing and Mike at MJS automarine. Again I don't know for a fact that th...

I had similar non-latching with an early F which turned out to be the switch. I expect you don't have a spare so maybe a check on the terminals/continuity. I have a spare switch in the longer term, if needed. Dieter's website suggests blue/yellow is the rear fog supply. In the far rear left of the b...

Chris those flanges are beyond rescue! Text sent.

Whilst MGR regarded the waterpump as a fit-for-life item, bitter experience has led many to change it out with the cam belt. This would entail losing the coolant and having to rebleed everything yet again. If you have no idea when the belt(s with your VVC) were last done I would definitely be gettin...

When it has cooled down, where is the water level in the expansion bottle?
It is common for airlocks to disappear slowly and for small cold topping up to be necessary for a week or two (particularly after an 'enthusiastic' run!).

I would start a new thread Ks912 as Derek hasn't posted since 2014.
Does your engine turn over without firing or just not turn over at all when it won't start?

Well done Dave - it sounds like you have cracked it. Unfortunately you now have to undo all the good work and start again with coolant mix, but you know what to do and what to expect. It doesn't sound as if you have any muck to clean out, so I am not suggesting that you do, but for interest: After a...

I would have advised undoing both underfloor pipes but that is past. The closed thermostat is most likely causing your air/water lock now, which would have been a little less of a problem with both underfloor pipes open - but only a little. Also you didn't mention the heater matrix bleed screw which...

Frightening but true - I almost don't want to confirm it for the rush to scrap! Remember that when the rheumy eyed old breaker pretends he is doing you a favour offering only £150 for the whole car. He will get half that for the steel he weighs in. Each sphere is £40 and a VVC head about £300 almost...