Another Spark Plug DIY (for dummies)

[thstone]

I replaced my plugs and tubes today.

Very easy job. Took me about 2 hours but I tend to dawdle and take pic's and am generally not in a big hurry. Probably could have done it in an hour and fifteen mins if I tried.

One thing to remember to do is to check the spark plug gap before you install the new plugs. Usually they are ok out of the box, but one of my new plugs was quite a bit off (wide, not close). I set the plugs at .028".

The tubes came right out using a boat plug. The old tubes were in pretty good shape and so were the o-rings so if I still have any oil seepage its likely the cam cover.

Old plugs were Bosche and I replaced with OEM Beru. Engine runs a little smoother but otherwise no real detectable difference. Old plugs were worn but looked fine.

Thanks for the instructions, they helped a lot!

[Frodo]

Originally Posted by thstone

I replaced my plugs and tubes today.

One thing to remember to do is to check the spark plug gap before you install the new plugs. Usually they are ok out of the box, but one of my new plugs was quite a bit off (wide, not close). I set the plugs at .028".

Still reading a couple things on plugs, tubes, coils, etc, and came across this older thread. What caught my eye was the gap that thstone was setting his plugs at. I realize his is a different year, but for my vehicle (2001S) Bentley recommends 1.6 mm which, if my math is good, comes out to 0.063"

Even with it being a different year, the difference between his setting and Bentley's recommendation is huge—over a 2:1 difference. Does this seem odd to anyone besides me?

[blue62]

Originally Posted by Frodo

Still reading a couple things on plugs, tubes, coils, etc, and came across this older thread. What caught my eye was the gap that thstone was setting his plugs at. I realize his is a different year, but for my vehicle (2001S) Bentley recommends 1.6 mm which, if my math is good, comes out to 0.063"

Even with it being a different year, the difference between his setting and Bentley's recommendation is huge—over a 2:1 difference. Does this seem odd to anyone besides me?

0.028" is very close. I don't recall any automobile engine with a plug gap spec. that close.
I would not dwell on it. Gap your plugs at the Bentley spec.