M30 Missfire

[Fal_325i]

I have acquired a 3.5 M30 powered e30 which is misfiring, any ideas what it could be?, what are the best and worst case scenario's?

Thanks

[jimbom30cab]

Is this a blue carbio ?

I'd check for

Spark
Fuel

and

Compression

in all cylinders.

[zaust]

check the dizzy cap very carfully too. they tend to crack in odd place's causing arcing.

[87mtech27]

Thought you was dead against the anchor Fal?

[Brianmoooore]

First thing is to determine whether it's a particular cylinder (or cylinders) that isn't firing, or a random misfire. Ideally, you should short each plug lead to earth in turn, but pulling the cap off doesn't usually cause harm.

[jimbom30cab]

Happened to me and I would NEVER advise anyone to do that

[Brianmoooore]

If you're daft enough to do it with your fingers, then you deserve what you get!

[fixedwheelnut]

Buy a pair of proper plastic pliers made for the job

[Rav335uk]

If you're daft enough to do it with your fingers, then you deserve what you get!

HAHAHAHAHA