1966 Volvo 121

[Drum]

So it idles happily at a higher road speed? Apologies if you've mentioned this already.

[Drum]

Must be airflow affecting the mixture. Running too rich? Have you checked the plugs after it stalls?

[quietside]

So it idles happily at a higher road speed? Apologies if you've mentioned this already.

Yes, it idled down in neutral fine until whatever the speed before stationary (10-20mph) was.

I think if anything it's returning to idle too lean/weak if anything, as pulling the choke out slightly stops it from shitting itself.

[DodgeRover]

Jon, my twopenn’orth is that you should avoid going down through the gears when slowing down. This is of doubtful value and only wears the gearbox needlessly. This car will stay happily in top gear until about 20 MPH when it can be put into neutral. Brakes are for slowing down, not gears.

Gears to slow, brakes to stop that's the way it used to be taught for anybody driving anything old/ heavy to prevent cooking the brakes.

[DodgeRover]

Does the mixture after setting make a difference

[Hooli]

Jon, my twopenn’orth is that you should avoid going down through the gears when slowing down. This is of doubtful value and only wears the gearbox needlessly. This car will stay happily in top gear until about 20 MPH when it can be put into neutral. Brakes are for slowing down, not gears.

Gears to slow, brakes to stop that's the way it used to be taught for anybody driving anything old/ heavy to prevent cooking the brakes.

Indeed, coming down the box early gives you a lot more control & spare braking to deal with the unexpected.

[fried onions]

Ah well. Driving instructors double as engineers now. That’s why I usually keep quiet these days. What do I know eh. Gearboxes easier and cheaper to replace than brakes, and brakes so bad they won’t slow a car without using the gears. How do you slow down in automatic? Good God. My last word on the subject is I would be considering manifold depression and the cutting out is due to the inlet being unable to deal with a sudden change in vacuum. I’d be checking very carefully the breathing arrangements including crankcase ventilation and for possible air leaks.

[quietside]

I would be considering manifold depression and the cutting out is due to the inlet being unable to deal with a sudden change in vacuum. I’d be checking very carefully the breathing arrangements including crankcase ventilation and for possible air leaks.

[quietside]

I would be considering manifold depression and the cutting out is due to the inlet being unable to deal with a sudden change in vacuum. I’d be checking very carefully the breathing arrangements including crankcase ventilation and for possible air leaks.

I was sent an inlet manifold gasket by a specialist as a mistake (I'd asked for a drive belt); perhaps this is the time to get it swapped as I've no idea what condition it's in.

The PCV is a piece of gauze that vents straight to atmosphere but if it's clogged it could be giving issues.
The back box also has a broken baffle.

[quietside]

IN REVIEW:

I'r angered the car gods
I (apparently) don't know how to drive
There is some kind of PCV issue
There is an old Volvo specialist on the Wirral
The balance of shit parts to good from new inventory is higher than I thought
Ben test caused it to stall at the same near-stationary speed as I coasted in

I'll let you know how I get on.

I'm down at the car in the next two weeks and I have to pick my mate up from the railway station in it.