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Thread ID: 92055	2008-07-27 05:41:00	Misfire and Die	password (5384)	PC World Chat

Post ID	Timestamp	Content	User
692705	2008-07-27 05:41:00	Hey, im having a bit of trouble with my car, wondering if anyone knows about this sort of thing.... I have a Old 1974 Morris Marina Super (DON'T LAUGH:lol:) and i have started having a bit of trouble with it Misfiring and dieing on me... Like today, i was driving down the road fine and Bam! It starts misfiring for a few and then it just dies.... Anyone have any ideas? I had dad go round and he checked out the petrol filter and the amount of fuel going into the system... The motor is running fine and it has Quarter of a tank of fuel in it... Any ideas?:help:	password (5384)
692706	2008-07-27 06:03:00	Banging or misfiring is usually NOT a symptom of fuel delivery. If you are running outta gas from a bad filter...it usually manifests as loss of power or poor throttle response. Misfires are almost always due to intermittent ignition woes. I'd start with the ignition system. When's the last "tune-up"? Did you change plugs, wires, rotor etc? It's Winter there...no? I'd also suggest that you get the car into a dark area..like a dark alley or garage and open the hood while the engine's running...look for any sparks and glow around the plugs and wires. distributor cap and coil. It may take a few minutes for your eyes to be able to adjust and see well in the dark...but look and note if you see any "St Elmo's Fire" as we used to call it. You can also get a squirt bottle of water and shoot it at the wires and plugs whilst the engine's running....and watch for any stuttering or misses. You'll also likely hear a snapping or crackling sound too. Either way, you have secondary voltage loss to the plugs. When you see something, then the rest is either replacement of or repair to the offending part(s). You can also have plugs breaking down from fuel modifier deposits, oil on the electrodes or just plain ol' worn out plugs, requiring more voltage to fire across larger than normal gaps. Re-gapping the plugs in this case is a temporary repair, but will put you on the right track. You'd close the gaps a little more than usual to be a good test. If it were fuel injected...and I bet it isn't from the age of the beast, then that might be another avenue of approach. Check back with more information or observations when you can. It's just nuts and bolts and can be fixed. ;)	SurferJoe46 (51)
692707	2008-07-27 06:36:00	It's just nuts and bolts and can be fixed. With a Morris Marina? - - - That would be a first. Their greatest advantage is that they seldom go far enough that you can't push them home ;)	R2x1 (4628)
692708	2008-07-27 06:38:00	I don't know the car myself..but the laws or thermodynamics and conservation of energy still apply. I had a 1959 Hillman Husky once. Does that count?	SurferJoe46 (51)
692709	2008-07-27 06:39:00	awsome info ta. We have just bought the car and suspect that its being laid up for awhile!!! The car seems to run a certain distance or the tank gets down to certain level and the trouble starts. the gauge still shows 1/4 tank, Must admit as yet i have not checked over the visual sparking as yet that will be next, seems like a pressure builds and well Cough, Cough, splutter, and I make a similar verbal sound We disconnected at the fuel pump and watched the fuel pump out, at first there was a good pump then the flow died right down.	password (5384)
692710	2008-07-27 06:45:00	With a Morris Marina? - - - That would be a first. Their greatest advantage is that they seldom go far enough that you can't push them home ;) =? I love mine!!:clap	password (5384)
692711	2008-07-27 06:48:00	awsome info ta . We have just bought the car and suspect that its being laid up for awhile!!! The car seems to run a certain distance or the tank gets down to certain level and the trouble starts . the gauge still shows 1/4 tank, Must admit as yet i have not checked over the visual sparking as yet that will be next, seems like a pressure builds and well Cough, Cough, splutter, and I make a similar verbal sound Out on a limb here . . . but if it has some really . . . er . . . . bottled in bond and aged fuel, I'd suggest getting rid of it for fresh . If it sat around a lot . . there are a lot of other troubles that can be raised too . Weak or sagged valve springs from being stopped in a "valve-opened" position for an extended period . If it's Londonderry Steel, that's a good possibility . Gunked up valve stems or guides can keep a valve from completely closing when it should . It can pop or backfire too . This MIGHT just show up after getting heated up to normal temps . Watch for this one! The likelihood of any ONE cylinder missing or not firing is again, another reason to suspect the ignition system . Most likely all of them would be affected in the long run . Rubber plug wire insulation breaks down in time . . so again, try the glows-in-the-dark test first! Don;'t go of on crazy tangents here . . it's likely just a very simple fix from deteriorated rubber or plastic parts that have "given up the ghost" (Shakespeare there) and you have to nail it down .	SurferJoe46 (51)
692712	2008-07-27 06:50:00	awsome info ta. We have just bought the car and suspect that its being laid up for awhile!!! The car seems to run a certain distance or the tank gets down to certain level and the trouble starts. the gauge still shows 1/4 tank, Must admit as yet i have not checked over the visual sparking as yet that will be next, seems like a pressure builds and well Cough, Cough, splutter, and I make a similar verbal sound We disconnected at the fuel pump and watched the fuel pump out, at first there was a good pump then the flow died right down. Good on ya dude!	SurferJoe46 (51)
692713	2008-07-27 06:53:00	Sweet thank you dude, I will give a look and get back to ya! THanks for ya help, WIlliam	password (5384)
692714	2008-07-27 07:03:00	Fuel tank cap vent blocked? A tank full of suck does not help much, if you take the cap off the cap the suck will get out (and then you will have struck a blow for freedom).	R2x1 (4628)
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