spark plug seizure!?

mrferg · Apr 28, 2004

Ben said:

I have platinums and they are doing well.

rjp325i · Apr 28, 2004

I used the Bosch platinum plus 4 in my 1989 325i with good results. I had them in for over 35K miles and they were still good but the car got totaled and that's how I wound up with a 2004 330i.

Auslander RML · Apr 28, 2004

After a few days with them in, the platinum 2s seem to be doing their job well. Any "performance" aspects are probably just placebo effect, but the idle is a bit smother. As for torque, I don't have a torque wrench (yet) but I hand threaded them with the socket attachment.

aNoodle · Apr 28, 2004

Big Daddy said:

You know...when i did my plugs last summer, I didn't use the recommended anti-seize. What are the chances they will be all that bad? Or do I need to sell the car before I get to 200,000. LOL. No, seriously, should I take them out this summer and put the spray on em or is it too late?

Big Daddy · Apr 28, 2004

I would remove them and apply anti-seize. I got the stuff in a tube, kind of like a crayon, and you just rub it on the threads. I have seen many an aluminum head stripped because someone forgot the anti-seize.

Auslander RML · Apr 29, 2004

Please correct me if I am wrong, but do all E30s have a cast-iron block and head?

Big Daddy · Apr 29, 2004

Auslander RML said:

No, the M42 motor in the 91 318is is a chilled-cast aluminium alloy 16 valve twin cam head is a classic pentroofed design with the spark plug centred between the valves (with a relationship to the M1, M5 and M635CSi engines). The combustion chamber is bi-concave. The top of the rocker cover has a liquid/vapour seperator to reduce oil consumption.

I am not positive but I believe all e30 M cars also have aluminium heads.

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spark plug seizure!?

mrferg

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