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Car Forum / Fiat Cars / March 2005Brava 1.4sx wont crank even on a push start
2 months ago the starer motor went on my fiat brava, it a made a screeching noise and died, i removed the starter immediatly and a month later i got around to rebuilding the starter, so i put it back in and attempted to crank the engine to no avail !!!, with that i got a rope i use for rock climbing (very strong rope) and doubled it over and towed it with my 1.8Td van with my friend in the fiat we attempted to jump start it,so as my friend let out the clutch whilst in 2nd gear the fiat began to stop and finally the rope snapped !!!! we tried everything but we couldn get the engine to do as much as a half a revolution!!!!!! it kept snapping the rope, but we noticed that if we put it in reverse gear we could just about get the cars engine to turn over if we pushed it forward!!!! i dont know what the problem is and any advice is much appreciated, see i cant afford to pay a mechanic , Thanks Dave >2 months ago the starer motor went on my fiat brava, it a made a > screeching noise and died, i removed the starter immediatly and a [quoted text clipped - 8 lines] > put it in reverse gear we could just about get the cars engine to turn > over if we pushed it forward!!!! General information for guidance based on the description above. Remove spark plugs, put large spanner on end of crankshaft (crankshaft nut / bolt , crankshaft pully nut) and see if engine can be turned by hand using the spanner, normally clockwise. Need to remove the plugs so that there is no compression, engine should turn easily if not I think it could be serious. Cannot be more specific as I am not sure how accessible the crankshaft is on this car. Please try and provide further information - what happens when you try and start using the starter motor, is the starter motor working (how do you know). Andy "andrewportess1" wrote: > >2 months ago the starer motor went on my fiat brava, it a > made a [quoted text clipped - 41 lines] > > Andy well i tried installing the starter 2 different time just in case i got a splen stuck, the starter works grand because when i conntect it directly to the battery it spins and retracts. anyway when i try to use the starter with it in the engine you can hear it engaging and thats all, ill try what you said about the spanner, thanks for the info > > Andy > [quoted text clipped - 3 lines] > use the starter with it in the engine you can hear it engaging and > thats all, ill try what you said about the spanner, The starter motor when switched engages a pinion gear onto a toothed wheel (ring gear) adjacent to the flywheel (or part of the flywheel); the ring gear can only stop in one of three or four places. That means when the starter motor is switched the pinion gear on the starter motor only ever engages with 3 (or 4) places on the ring gear (the same places over and over again). If at one of these points the ring gear is worn (missing or damaged teeth) the starter motor pinion gear will not have anything to engage with on the ring gear and the starter motor will not turn the engine. It is worth examining the ring gear (from underneath the car and looking from the top down the side of the engine to get the best view possible). However bearing in mind that the engine has been sat for 2 months it is possible that the engine has seized (possibly some rust build up in the cylinders), that said it should be relatively easy to free it up. With the spark plugs removed spray some penetrating oil into each of the cylinders and leave it to soak for 4 hours. Then try to turn the engine using a spanner on the crankshaft bolt / nut. If it turns give it half a turn and then put in some more pentrating oil after soaking for 4 hours turn another half turn using the spanner; if the engine is free give a further full turn and then try the ignition (after replacing the spark plugs of course). If it doesn't turn then spray in some more penetrating oil and leave to soak overnight; then try with the spanner. If that doesn't do it I think it might be time to visit a garage. If it works I strongly recommend an oil and filter change. Andy |
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