johnyfartbox
A2OC Donor
Update, car still starting but I forgot to run it up the ramps last night, just done that and will check back later.
So, Sir, what's next, MoT?Just this minute started it.
Couple of days since I started it.
Yea, it's booked in next WednesdaySo, Sir, what's next, MoT?
Mac.
Yea, it's booked in next Wednesday
That does sound like a little air is still getting in but the engine is starting and the tandem pump is bleeding it out before it stops the engine. I'd wager if you had a clear pipe on the return you would still see air bled out initially. You might find the warmer weather is helping with a bit less viscosity in the fuel.Still a bit lumpy on the first turn of the key, that makes me think that there is still a bit of fuel run back.
Its a bit like an old petrol carb where there is just enough fuel in the pot to feed the cylinders but only a couple of them until fresh fuel eventually feeds all four cylinders and then the engine runs sweet.
The warmer the fuel, the bigger the bubbles. Not more air, just bigger bubbles, as air expands quite a bit as it gets warmer.That does sound like a little air is still getting in but the engine is starting and the tandem pump is bleeding it out before it stops the engine. I'd wager if you had a clear pipe on the return you would still see air bled out initially. You might find the warmer weather is helping with a bit less viscosity in the fuel.
I was more thinking: the less viscous the fuel the easier it is to move hence less suction to draw air into what is likely a really tiny leak.The warmer the fuel, the bigger the bubbles. Not more air, just bigger bubbles, as air expands quite a bit as it gets warmer.
Mac.
That too.I was more thinking: the less viscous the fuel the easier it is to move hence less suction to draw air into what is likely a really tiny leak.
There must be two points, where the gasket is doing bothThat too.
We think of gaskets keeping stuff in, but on the suction/vacuum side, it's keeping stuff, (air), out!
Here the same gasket has to do both jobs, in different spots along it's path. Changes from one to the other over a couple of millimeters.
Mac.