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Hi everybody, new to this MGF malarky. We bought a '98 1.8i for my wife's belated 60th birthday. Ran it for 3 weeks, she loves it. Now, she took it to work 1 night and there was a torrential downpour. Came out the next morning wouldn't start. Got it recovered, and after a few days, managed with great difficulty to get it started. Ran, but bucked and kicked and backfired. Decided to renew, the dizzy cap, rotor arm, plugs and HT leads, I thought that would be the end of it? Nope, it ran ok eventually, took it for a ride out, did about 50 miles and it started bucking and backfiring. Managed to get it back, now scratching my head as to what it could be? Can anyone help, or suggest a reputable garage/person to have a look at it. Need to get it fixed soon, the wife, understandabley isn't a happy lady.
 

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Well, youve done the things that id do- electrics for the ignition- but it sounds like a lead might be shorting to earth? I always try the things that dont cost first before i start throwing money at it co 'blocke down pub says so' or the 'Forum say so' !
Why would the downpout have any effect on the car- unless the engine got wet- which, in this weather if youve done what youve said- you have overcome that eventuality. Does the fuel-cap seat correctly?- Im thinking water leak into the fuel- but again, you would have to be unlucky if that were the case.
You have the advantage of the car on the drive- we have the disadvantage of not having thr car to judge for ourselves.
 

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Hi PatM, thanks for taking time out of your day to answer my questions. That is my bug bare, how can an engine, that is covered, suddenly pack in? Because of a rain shower however torrential, last time I checked, rain falls down not up? I can't see any electrical shorts, ( & I've worked late into the night) the fact that it started & ran, then started again. It's got me beat and pulling what little bit of hair I have left out that it's ran since, then started playing up again. I think I'm going to have to bite the bullet and put it into the garage. Just need an MG specialist.
Many thanks
Kev
 

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SUCK SQUEEZE BANG still applies Kev- Have you got a spark at all 4 plugs- thats where Id start. Ive not seen a dizzy for years but they were a good bit of kit for getting a spark to- providing you obeyed the Rules! We used to fit Sparkrites to them hoping we could have electronic ignition. careful what you wish for as wise-men told me...And they were right! Dont know where youre based but MG ROVER SOLUTIONS is a good bet.
 

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Yeah deffo a spark there. Like I said, had it out for a run of about 50 miles it then started again. Got my head battered totally. Obviously I want to get it running for the wifes sake, especially whilst the weather is half decent. Happy wife, happy life. Think I'm going to have to get it looked at professionally
 

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I would suspect the HT leads, if they are old and the insulation is compromised damp in the leads can stop the car from running and heat can make run badly.
 

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Discussion Starter #7
Hi Chris as stated in the original post. I renewed all plugs, leads dizzy cap & rotor arm. All plugs are sparking. Its been running, and then after approx 50miles, started bucking and splurting again 🙁
 

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Check for corrosion in the fuse box under the steering wheel, it not unheard of for damp to get into the fuses and cause corrosion on them, I recently had the ABS light come on on one of my TF's, checked with a Pscan no fault found, turned out was corroded fuses. It might not be the problem for yours, but worth a check.....One other thing, just because you put new dizzy cap, rotor,etc. doesn't mean one or more of the new items are not faulty....had a citroen bx 19git 16V many years ago, had changed the dizzy and rotor plus plus then found car would cut out after short journey, as a mate had the same make car I changed fuel pump, fuel rail, injectors, etc. only to find out some month later it was an hairline crack in the new rotor arm which when the rotor arm got warm would cause the crack to expand resulting in the car cutting out.....Also, my brother's TF had brand new Bosch plugs fitted just before he bought it, I know as I fitted them for the seller, not long after buying it he had a misfire, turned out one of the plugs was faulty.
 

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Hi everybody, new to this MGF malarky. We bought a '98 1.8i for my wife's belated 60th birthday. Ran it for 3 weeks, she loves it. Now, she took it to work 1 night and there was a torrential downpour. Came out the next morning wouldn't start. Got it recovered, and after a few days, managed with great difficulty to get it started. Ran, but bucked and kicked and backfired. Decided to renew, the dizzy cap, rotor arm, plugs and HT leads, I thought that would be the end of it? Nope, it ran ok eventually, took it for a ride out, did about 50 miles and it started bucking and backfiring. Managed to get it back, now scratching my head as to what it could be? Can anyone help, or suggest a reputable garage/person to have a look at it. Need to get it fixed soon, the wife, understandabley isn't a happy lady.
Check the coil. On some Fs its located at the back of the engine under the inlet manifold. Its prone to getting wet in heavy rain by water entering through the boot lid vents.
 

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I was just about to say the same, if you read my thread "All things Lambda" you will see that the coil to Dizzie cable had burnt out, there is even a photo of the offending cable. It performed exactly like you said, it would run fine then for some unknown reason it would pop and bang and stop until eventually no matter what i did it wouldn't start again. one question did you change this coil to dizzie cable or did you ignore it as it was so difficult to get to.
Don't forget to let us know what it was when you cure it.....
 

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A magnetic points pickup fails with these symptoms. Fine when cold stops working when engine warm. Replace magnetic sensors used for engine timing.
 
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