Quote:
Originally Posted by BigBen
Even if you end up with a broken plug, it won't automatically mean you have to take the head off.
Even if the threads get damaged in the process, you'd still have the option of inserting Heli-Coils or Key Inserts threads (although I don't know if that is a factory approved repair).
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Yes it does unless you are that good with a drill and it is in a drillable location. I almost had to buy a new head from drilling and that was with a couple of MB techs doing it. Luckily the machine shop was able to redrill a seat a little deeper. Head removal and paying the machine shop to drill it out is a lot cheaper than head removal and head purchase.
I think it is. Their repair kit has heli-coils.