Thread: Stalling on steep hills?

More information on Willy required. Engine type, type of carby fitted etc.
I doubt the gradients steepness would be 55 degrees, maybe 55% ?
A 55 degree gradient, unless artificially built from perforated steel would be unclimbable.
Wagoo.

What engine? What carburetter? If in reasonable condition none of the carburetters fitted to Landrovers should give this symptom up to the limit of traction and beyond.

Another possibility is that there is an air leak on the suction side of the pump, that results in restricted fuel supply at steep angles, possibly a rust pinhole in the fuel pickup in the tank.

The symptoms are, however, typical of some carburetters fitted as replacements, particularly Strombergs as fitted to Holden engines.

John

On a hot day the 2.6litre 6cyl the fuel supply to the Stromberg carbie can have some vaporisation... but Andwoo mentions activating the fuel pump which points to a 2.25 litre (with the manual pump) - possibly the 4cyl petrol has a simlar vaporisation problem to the 6?

Willy's a 1982 series 3 Wagon, 2.25 4cyl petrol with a Zenith carby.
You may be right Wagoo, I probably am off with my estimations. I'm a plumber who often works with 45 and 88 degree bends to me the slopes were comparable to a 45 degree angle.
Certainly the steepest i've ever encounted!

I encounted a simmalar thing with a Patrol on a trip I led on the weekend.
Ran like a charm on the flats but the fuel pump couldn't pump fuel up hill
Check the flow rate of yours as a starting point maybe.

couple of checks, firstly T in a fuel pressure gauge and watch what happens on a climb. if the fuel pressure drops its a fuel delivery problem.

if it doesnt drop till the engine stalls out then its a carby problem, most likely the float is not adjusted correcty (1/64" differences count at the big angles) or you have a warped top plate.

the first will generally starve it to a stop the other winds up pouring raw fuel down the throat. have a friend watch the exhaust while you stall out on the hill, black smoke is almost always the carby causing the problem.

Thanks for the advice everyone. I think when i get some spare time next i'll pull out the fuel sender and check it over for rust or damage and inspect the fuel lines.
I've only recently replaced the fuel pump so perhaps rebuilding the carby is a good idea too?
I'm keen to solve the problem, it's pretty scary having the engine stalll when your in the middle of a big hill climb!
Maybe i should drive up the next one backwards

Not the same thing, but I had a problem with the Zenith in the 2a today - decided to refuse to idle. So I pulled the carburetter to bits, expecting the slow running jet to be blocked. It wasn't, but after reassembling it, problem solved. I suspect that there really was something blocking the jet, but it was dislodged as I pulled it to bits.

John