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Location:
Sydney
Registered:
October 2003
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Re: Engine turns over but backfires
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Tue, 04 May 2004 10:10
 
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Ok, done some testing....
To define the sound alittle more, you would sware that there was a hold in the exhaust around the manifold or drop pipe. Its got that lawnmower sharpness to it. However extensive testing shows no sign of leakage (engine was cold and I ran my hand around every gasket, pipe, etc)
All plugs are firing. I ran the engine on 1cyl at a time to confirm this (not in the mood to be shocked today) When running on cylinder 2,3 (not at same time) the engine runs rough, but doesn't make nasty sound. When running on 1,4 it does make the nasty sound. Yes they were all in the right positions on the dizzy. Haven't pulled the plugs out yet...
chuckster: I dont see how I could have bumped it out of timing...there is a cover over the timing belt and the dizzy is screwed in.
I think the fuel pressure is good (can hear is rushing around) - how do you test this?
New development
When increasing revs (prob up to 2000 but dont have tacho hooked up yet) the revs suddenly start fluctuating all by themselves. Like go up to 3000 then drop to 2000, go up to 3000, drop to 2000. And it just keeps repeating this all by itself.
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| | Subject | Poster | Date |
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Engine turns over but backfires
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praetor | Sat, 01 May 2004 10:22 |
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Re: Engine turns over but backfires
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mick | Sat, 01 May 2004 10:37 |
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Re: Engine turns over but backfires
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oldcorollas | Sat, 01 May 2004 10:59 |
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Re: Engine turns over but backfires
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praetor | Sat, 01 May 2004 10:57 |
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Re: Engine turns over but backfires
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mick | Sat, 01 May 2004 10:59 |
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Re: Engine turns over but backfires
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praetor | Sat, 01 May 2004 11:03 |
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Re: Engine turns over but backfires
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praetor | Mon, 03 May 2004 11:03 |
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Re: Engine turns over but backfires
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mick | Mon, 03 May 2004 12:01 |
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Re: Engine turns over but backfires
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THE WITZL | Mon, 03 May 2004 12:09 |
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Re: Engine turns over but backfires
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thechuckster | Mon, 03 May 2004 12:16 |
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Re: Engine turns over but backfires
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alex_ta22 | Mon, 03 May 2004 12:28 |
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Re: Engine turns over but backfires
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YelloRolla | Mon, 03 May 2004 12:57 |
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Re: Engine turns over but backfires
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praetor | Mon, 03 May 2004 23:09 |
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Re: Engine turns over but backfires
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thechuckster | Tue, 04 May 2004 08:40 |
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Re: Engine turns over but backfires
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praetor | Tue, 04 May 2004 10:10 |
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Re: Engine turns over but backfires
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THE WITZL | Wed, 05 May 2004 09:03 |
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Re: Engine turns over but backfires
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praetor | Wed, 05 May 2004 11:03 |
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Re: Engine turns over but backfires
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praetor | Fri, 07 May 2004 12:55 |
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Re: Engine turns over but backfires
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thechuckster | Sat, 08 May 2004 02:15 |
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Re: Engine turns over but backfires
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YelloRolla | Sat, 08 May 2004 11:46 |
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Re: Engine turns over but backfires
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praetor | Sat, 08 May 2004 12:01 |
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Re: Engine turns over but backfires
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thechuckster | Sat, 08 May 2004 12:49 |
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Re: Engine turns over but backfires
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praetor | Mon, 10 May 2004 07:47 |
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Re: Engine turns over but backfires
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YelloRolla | Mon, 10 May 2004 09:04 |
