Mr K
Posted a lot
Posts: 2,993
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ok, the kitten is SO close to an MOT, its just a case of getting it running right, and checking the head lamps are alligned properly! problem is:
The other night while testing lights, fixing indicators ect i left the ignition on all night - the battery was already so flat that it couldnt turn it over cue to the stereo being on and lights and stuff while working on it over the past few months... So, put the battery on charge and fired it up, started first time, very lumpy for a min or so, then it went out... ages of fettleing and 2 flat batterys later its still not working, so gave up for last night. Today dad attacked it armed with 2 fully charged batterys...got it going again!!! still no luck though, very very lumpy... so battereys went back on charge, and have been trying all evening, set the timing ect to TDC, try again, no luck!!
It was running fine but felt abit restricted so we tried advanceing the timing to see if that helped, this was curse word, so tried retarding it (there are two marks on the crank so we where just curse word about to see what we got ect) so i left it and go on with the rest of the jobs, as it started, ran ect was just abit lacking power... thinking rite, just stick it back to TDC and all will be fine when i need to MOT it... but now it is terrible! and now it wont even run!
Is this the sign of a burnt out coil? does it take much to do this? its a brand new coil and luminition electronic ignition - could this be burnt out?
Ideas guys.... ! tomorow i will replace the disi and if no luck the coil... see what i get then! in the mean time what do you thing?
Nick
p.s. how much play can i get away with in the steering column, there is a little bit there, bushes orderd but probs wont be here in time for MOT.
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Last Edit: Feb 7, 2006 23:40:46 GMT by Mr K
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racer86
Posted a lot
'72 BMW 2002 / '72 Alpine A110 Gordini
Posts: 2,184
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You don't want it at TDC mark when setting the timing static. There should be another mark 9ish degrees before TDC you should set the timing too. If its set to fire at TDC its well retarded and will be as flat as the proverbial pancake and thursty and a blown V8! . Try that an see if its any better.
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Silly question, but are the plug leads on the right order? In the past when I've mixed it up, either it has ran but rough, but won't idle and needs revving, or, would idle but would back fire and have no power when revved, depending on which plug I've mixed up.
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You might well have burned out the coil. With the ignition on it's passing current through it but because it can't dump it through a plug it gets hot. After about 1/2 hour the coil is usually pretty hot so I wouldn't mind betting you fried yours. Have you got one on another car you can borrow to try out? I might also be inclined to put some points in and get it running, then swap in the leccy ignition again. It's hard to test that electric trickery stuff.
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том
Posted a lot
"If in doubt, flat out!"
Posts: 2,707
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if the ingnition was left on all night, chances are ya coils fried, but if it started after that, and you haven't done the same mistake again, then i doubt it's that. If ya keep killin battaries, you sure ya altenators ok?
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1988 V8 Rangey Bobtail :: 1968 Volvo Amazon 133 Ratrod :: 1977 Land Rover 88 :: 1985 Opel Monza GSE :: 1983 MKII Fiesta
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I'm not sure if leaving the ignition on burns the coil out if you got electronic ignition... with points, if they are closed and the ignition is on there's a circuit through the primary windings to earth, which is what fries 'em... I would go through all the connections carefully, and check that you've got a good earth connection between the engine and chassis. Also bear in mind it could be totally unrelated to the work you've been doing, and just coincidence that it's playing up how...
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... the only injury I sustained was a bumped head when I let the seatbelt of without realizing the car was upside down and that's not really the car's fault.
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том
Posted a lot
"If in doubt, flat out!"
Posts: 2,707
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were you trying to turn it over when the coil was still hot? so if so you wont get a spark
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1988 V8 Rangey Bobtail :: 1968 Volvo Amazon 133 Ratrod :: 1977 Land Rover 88 :: 1985 Opel Monza GSE :: 1983 MKII Fiesta
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MWF
Posted a lot
Posts: 2,945
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I've had two coils go and in my experience they either work or they don't, no in-between. Sounds like an engine earth issue to me.
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Mr K
Posted a lot
Posts: 2,993
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cheers guys, will go and play tonight. the batterys went flat because the engine was cranking over, but oviously not running so not chargine.
will check earths, re do the timing, change disi, ect ect lots of things to try tonight!
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a quick and easy way to test the engine earth is to use a jumplead. one end onto the block and the other to the body. then see if it'll start.
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paul4be
Part of things
'86 Capri Laser, Frontera 4x4
Posts: 395
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As above, take all of the elctronic ignition stuff off and put points etc back on and try that. At least that way you are sure it's not the electronic ignition stuff.
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Are you sure its electrical and not a fuel related problem? Collapsed fuel lines maybe? You can get away with a little bit of play on a steering rack. if its less than say from 12 oclock to 1 oclock. Any more than that and you wanna hope the tester got lucky the night before
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Mr K
Posted a lot
Posts: 2,993
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well, first checked the earth... no difference, then checked fuel line and yup, the facet is pushing more than enough, coil next... still no luck, disi... same story! then started playing with the spark plugs, it was quite fludded and the all the plugs seem to have packed up? new plugs and wey hey! although they are a random set from around the garage. so do plugs get damaged by fuel or waht makes them slowly stop working, because they fired every now and again before, but change them and the new ones work fine?
it goes OK but is still abit lumpy, need to play with it more, definatly still more power to be had as it couldnt pull the skin off of custard as it is, before when i first changed the cam it went like the clappers and had the ability to leave a huge black line up the road! Also found that by changeing from electronic igniton back to points it now goes better! weird. need to keep playing i think, might swap the weber ICH back to an SU and see what i get.
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Last Edit: Feb 8, 2006 22:35:21 GMT by Mr K
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том
Posted a lot
"If in doubt, flat out!"
Posts: 2,707
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what did the plugs look like? tell you what buggered 'em, what colour where they, what curse word did they have on 'em?
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1988 V8 Rangey Bobtail :: 1968 Volvo Amazon 133 Ratrod :: 1977 Land Rover 88 :: 1985 Opel Monza GSE :: 1983 MKII Fiesta
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Mr K
Posted a lot
Posts: 2,993
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what did the plugs look like? tell you what buggered 'em, what colour where they, what curse word did they have on 'em? they where nearly new, and had only been run up a few times, so where black. unfortunalty colour doesnt realy mean much if they havent been used in anger!
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racer86
Posted a lot
'72 BMW 2002 / '72 Alpine A110 Gordini
Posts: 2,184
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Try cleaning the plugs and using them, or buy some more, random ones from around the garage might be the cause of lumpyness. Check they are gapped right as well. Ditch the weber IMO, ive always found weber downdraughts (not had much experience with DCOE's other than on race engines i didnt drive) to be wibblepoo. SU's rule I'm a big fan of the union of Skinner. I always remember on minis an 1 3/4" SU would make more torque and power than a 40 DCOE upto 100bhp. Funny you should say about the points, my mate who runs the local mini shop races and all his motors have made better power on points than on electronic ignition!
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том
Posted a lot
"If in doubt, flat out!"
Posts: 2,707
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sure it wasn't oil makin 'em black?
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1988 V8 Rangey Bobtail :: 1968 Volvo Amazon 133 Ratrod :: 1977 Land Rover 88 :: 1985 Opel Monza GSE :: 1983 MKII Fiesta
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DCOE's are great! The path into the engine is a bit crooked with a DCOE on a mini, that's why it doesn't work so well, better at high revs with a straight path in like on a Ford engine.
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Mr K
Posted a lot
Posts: 2,993
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cheers for all the advice, changed the plugs to a new set (£1.50 for four plugs, got them trade and he only charged me for one!)and re did the timing, goes ALOT better, amd going to try an SU as soon as I'm back from my holidays this weekend. Thanks for the help guys! willl et you know how i get on with the SU.
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