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| WHY................ https://www.ausmini.com/forums/viewtopic.php?f=2&t=76051 |
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| Author: | kasperflipped [ Wed Mar 21, 2012 7:00 pm ] |
| Post subject: | WHY................ |
would a car that started yesterday with just the fuel in the carby and a rag stuffed into the intake hole to keep crap out not start the next day when the fuel line is hooked up with fresh fuel and the rag removed? Is it a sign that my mix is wayyyyyyy off? I flattened a brand new battery trying to get it going again. Whats the best way of setting the timing and fuel/air mix right so that i can atleast start to set it up properly yours in anger & confusion trent |
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| Author: | Fiji [ Wed Mar 21, 2012 7:19 pm ] |
| Post subject: | |
That sucks. Fuel pump not priming maybe. I drove the mini to work the other week left her there overnight next afternoon she wouldn't start. Ended up being dirty points... Emry paper done. Broke down last week on the Motorway ... Lead had come loose while driving 
Go over everything its either fuel or ign mayb a wire has come of your coil check leads. That's where I'd start anyway. |
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| Author: | Bubbacluby [ Wed Mar 21, 2012 10:05 pm ] |
| Post subject: | |
use some air-o start and see if it helps. What carby do you have? |
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| Author: | Gotta_Van [ Wed Mar 21, 2012 10:08 pm ] |
| Post subject: | |
Not starting how? Catching and then dying? Simply turning over endlessly? Turning over and backfiring? Did you adjust anything on the carby or change the timing while it was running yesterday? Sometimes it keeps running while you adjust something, but once you turn it off, the adjustment made can prevent it from starting again in my experience. Maybe it was running rich and the plugs are now fouled, preventing it from starting properly? Or it's a fuel delivery problem. Why did you need to pour fuel into the carb in the first place? If all else fails, go back to basics: check you have a spark to all plugs, then check your fuel delivery is okay to the carb. If you have spark and fuel to the carb then look at the carb as a likely culprit in my inexperienced opinion. |
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| Author: | Bubbacluby [ Wed Mar 21, 2012 10:42 pm ] |
| Post subject: | |
Gotta_Van wrote: Not starting how? Catching and then dying? Simply turning over endlessly? Turning over and backfiring?
Did you adjust anything on the carby or change the timing while it was running yesterday? Sometimes it keeps running while you adjust something, but once you turn it off, the adjustment made can prevent it from starting again in my experience. Maybe it was running rich and the plugs are now fouled, preventing it from starting properly? Or it's a fuel delivery problem. Why did you need to pour fuel into the carb in the first place? If all else fails, go back to basics: check you have a spark to all plugs, then check your fuel delivery is okay to the carb. If you have spark and fuel to the carb then look at the carb as a likely culprit in my inexperienced opinion. Check the gap in your points too. Your not losing water too are you? I recently blew a headgasket and was loosing a lot of water into my sump and it was hard to start. It would fire a few times and then die, sometimes it took me ages to start. I think the gasket was letting water into combustion chamber and making things diffcult. Probably not the case, but just a thought |
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| Author: | kasperflipped [ Thu Mar 22, 2012 7:43 am ] |
| Post subject: | |
thanks for the replys i should prob give more details about whats there and how it happened. The carby is a HIF4 I did straight over engine swap from my clubby to my roundy. When it started the first time, it was actually an accident. I was just testing that all my wiring was connect properly and the starter would turn over & I hadnt actually poured any fuel into the carby, it started with whatever fuel was left in the bowl from when it was installed in the clubby. That is also why i had a rag in the intake hole, it wasnt actually meant to turn over. Since then all ive done is hooked up the fuel line, removed the rag, installed the air filter and connected the throttle and choke cables. Didnt touch the timing or mix at all. Starting wise it just turned over endlessly with one moment of hope where it nearly caught but then continued to turn over before the battery decided no more. Im definatly getting fuel to the carby, i checked that by removing the fuel delivery pipe to the carby and turning the ignition on, a nice puddle of fuel was the result. Tonight ill check that im getting spark, the plugs and give the carby a good going over tonight to see if its all how it should be Fingers crossed that i find the problem as this is probably the last major step before im back on the road:):) |
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| Author: | Mike_Byron [ Thu Mar 22, 2012 9:41 am ] |
| Post subject: | |
How long has the HIF been standing ???? An achillies heel of the HIF is the rubber "O" ring that controls the choke. When it has been standing for a while the petrol we have here makes it crack and allows raw unmetered fuel to be sucked into cylinders. This instantly wets the plugs and it wont run. The reason it started accidently was that it had very little fuel in the bowl and by co-incidence the fuel air ration was about right. If it still doesn't start after a few seconds - stop and pull out a plug. If it already wet then it the choke "O" ring. You can check that also by draining the bowl - stopping the fuel delivery to the carby and then giving it a squirt aerostart. If it starts straight away then the problem is pretty well confirmed. Mike |
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| Author: | kasperflipped [ Thu Mar 22, 2012 10:07 am ] |
| Post subject: | |
oooh it could be that, its been sitting for a month or so since it was last started and ran for decent amount of time, but before that it was atleast a year or so. If it is infact this little o-ring, is it the one numbered 26 in this diagram? 
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| Author: | Mike_Byron [ Thu Mar 22, 2012 10:18 am ] |
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Yes - is the short answer There is a green ring that is available that is more resistant to australian fuel. Morris1100 put me onto it. I have lost that post though - FOUND IT !!! "You can get the green Viton O rings and they last a lot longer with petrol than the normal black ones. Mike_Byron wrote: M1100 Where ??? I need one at present and i have been saving up cents to approach Midel Mike The Austin Maestro Montego forum sells them in England but I am sure you could source them locally at a bearing place. The size is BS 013. The dimensions are 7/16" Inside Dia, 9/16" Outside Dia, 1/16 Cross Section." Mike |
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| Author: | DTrain [ Thu Mar 22, 2012 10:28 am ] |
| Post subject: | |
take the plugs out and turn it over to blow out any excess fuel. take off the air filter and try again |
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| Author: | kasperflipped [ Fri Mar 23, 2012 6:57 pm ] |
| Post subject: | |
well i got me some bs013 o-rings, and they seem to fit where the green arrow is pointing. The oring that was there was flat and when i prodded it with a screw driver it broke into bits. I just want to check that i have replaced the right o-ring. Also is there meant to be any o-rings where the red arrows are pointing? 
thanks trent |
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