Poured some fuel in to the carb and she did start briefly before cutting out, but there is still a fuel leak coming from somewhere and I'm damned if I can find it, all fuel connections are fine, did the poor mans fuel pump test, removed the fuel line to the carb float chamber and manually turned the engine over with a 19mm spanner and the fuel spurted out so thats working, I've also noted there is a bit of play on the spindle that operates the brass flap just inside the carb, I'm led to believe that once this is excessively worn the carb is knackered, is this true? anyways I've had enough for today I'm going round the bend, time to chill with a beer !!!!!
it may sound stupid , but a stuck intake/exhaust valve can get gas pouring through it without igniting , and flowing out of crevaces, i had a rocker go on me and this hapened, but it was a fuel injected, check the valve/rocker clearance on that side .
Thanks Dubsurftones, I will check that out, went out again this morning and had another look, took of the air filter and poured some fuel straight into the carb, and it just flodding back out of the engine on the right side, it's coming through the cooling fins on the crank case just above the pushrod tubes, I'll take the rocker cover off and check the valve clearances, I assume this would be an engine out job to repair ?
Hi Folks, Finally got the engine out and began stripping it down, removed the rockers and the push rods, then began to undo the 8 nuts on each side that basically hold everything together, noticed that they were quite easy to come off, thought this was strange as I imagined these would have to be torqed to a certain degree, therefore I began to re tighten them (evenly of course) poured fuel into the inlet manifold and hey presto, no more leak, so thought I'd better check the other side, it was the same, so there you have it the engine bolts that hold the piston barrels and the rockers to the main block were loose, all 16 of them, strange because up until the time when the engine actually leaked fuel it was running fine, anyways gonna do a few jobs now that the engine is out, mainly crankshaft oil seal, was done a couple years back but its worthwhile doing again, a big thank you to everyone who help and replied with this issue, oh does any one know what the torque setting are for the afore mentioned nuts, dont want to overtighten these. Stevo
Better get new nuts ,,,,,, Check ratwell. Aluminum heads are minimal torque. Your nuts are garbage,, Or your studs are backing out . Breaker down !!!
^ That's a really good point. The fuel may now just seep through the cylinders and into the oil in the sump. This happened on our van... I suspect, like me, you'll need to go and check/adjust the carb float heights and needle valves, and possibly fuel pump pressure.
