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Car Forum / MINI / November 2003MG Metro 1275 just put in. Serious problems
Hello I have just put the above engine in my mini.... everything ready to go... it starts no problem, idles no problem, and seems to rev on the spot ok. try and drive the git and - oh dear. massive loss of power to the point where the only real way to move the car is to slip the clutch. Had a bit of a play with the timing but I dont think it's that, can the mixture really have this much of an effect? havent adjusted it yet... It has an hif44 carb and I am wondering about vacuum leaks... could a vacuum leak have this much of an effect. How do I check for a vacuum leak? obviously I have looked but cant find one. it seems to be a carb problem (could it be headgasket blown across cylinders? - would have thought this would make starting difficult and idling erratic) - I just need to be able to get it going enough to take it somewhere to get it tuned. any advice would be much appreciated. Thanks Tom Odds are that it is a vacuum leak. To test, spray a fine mist of water around the carb and intake manifold. When you find the right spot the engine will stumble. You can also use carb cleaner in a spray can. Usually the engine will rev up when you find the leak. I say "usually" in the above examples because sometimes you will get the reverse effect when you hit the leak depending on how off the mixture had to be set to get the car to idle right with the leak. Cheers, Kelley >Hello > [quoted text clipped - 18 lines] >Thanks >Tom > Odds are that it is a vacuum leak. To test, spray a fine mist of water > around the carb and intake manifold. When you find the right spot the [quoted text clipped - 31 lines] > >Thanks > >Tom Hi all If you don't find a vacuum leak, Has anyone over tightened the tappets, ??? Fitzy Hi Overtightened the tappets?? Not sure. I was told the engine was running fine before I got it so I hope not. how do I check that?? I tried the spraying the water thing and it didnt seem to make much difference.... should it? HELP > > Odds are that it is a vacuum leak. To test, spray a fine mist of water > > around the carb and intake manifold. When you find the right spot the [quoted text clipped - 36 lines] > Has anyone over tightened the tappets, ??? > Fitzy > Hi > [quoted text clipped - 5 lines] > > HELP Hi Tom. could it possibly be a kinked fuel line , ? by this I mean , There is enough fuel passing through the pipe to feed the engine on idle and to alow it to rev up,, but not enough to alow it to accelorate on demand, Fitzy > > Hi > > [quoted text clipped - 13 lines] > accelorate on demand, > Fitzy Hello Turns out to be the electronic dizzy - had it tuned and problem persisted... changed the whole ignition over to non-electronic and now it is sweet.... mad!! |
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