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|3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.|
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| Originally posted by 97alpineM3@Jul 28 2004, 08:15 PM |
Ok... first... make SURE that you are using the orginal brand... and factory spark plug. BMWs are picky as all hell when it comes to spark rates on their plugs.
Next... if you dont have the right plugs.. and your having the same problem... replace the coil pack.
I'm not exactly very familiar with the M42 engine... but I do know that on distributorless ignition systems... the spark fires in BOTH directions. So if your spark plugs are working... you might have had a valve cover leak... burnt some oil.. and now preventing or slowing down the spark with a weak backlast of spark due to a oil.
OR.... if your car has a billion miles on it... due to the burning of gasoline and its additives.... a certain layer of carbon build up can occure inside of the engine... and around your plugs... slowing down the spark rate between the two. So... gets some Lucas injector cleaner... which also trys to burn some of the carbon out of the engine... it helps a lot... trust me.. try some of what I said..... it might help... if not.. I'm sorry.. and good luck.
| Originally posted by Speedy-325is@Jul 28 2004, 09:19 PM |
how is the compression on the dead cylinders? have you checked the valves?
my car had a dead cylinder and to fix it i would have needed a valve job. but i dropped in a new engine cause it was easier and less $$$$
| Originally posted by 97alpineM3@Jul 28 2004, 08:46 PM |
It will work fine for a while... but the longevity of a different type plug in the system is degraded due to the resistance of the material... (I'm almost positive thats why.. could be wrong). Honestly... I dont know much more.. sorry and good luck.
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