And the crush ring must be new.
Larry Hoy
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of Harlan Jillson
> Sent: Friday, May 26, 2000 6:33 AM
> To: James Nazarian Jr; James H. Nazarian, Ph.D.
> Cc: Simon Matthews; mgs@autox.team.net
> Subject: Re: Aluminum heads -- spark plug torque
>
>
> I believe the 'finger tight plus 1/4 turn' method applies only to spark plugs
>that use
> the crusher ring type seal, and not to tapper seat plugs.
> Harlan
>
> ---------- Original Message ----------------------------------
> From: "James H. Nazarian, Ph.D." <microdoc@apk.net>
> Reply-To: "James H. Nazarian, Ph.D." <microdoc@apk.net>
> Date: Fri, 26 May 2000 08:20:08 -0400
>
> >James (the younger),
> >
> >I believe Simon is right. I remember reading the same "finger tight + 1/4
>turn"
> >on one of those little slips of paper packed with Bosch plugs I used in my
>BMW
> >2002. It also had an aluminum head: the car that is, not the slip of paper. I
> >don't think the paper had a head.
> >
> >Jim (the older and more senile guy)
> >
> >James Nazarian Jr wrote:
> >
> >> this is the rule that I have always gone by. but I have yet to put plugs
> >> into any aluminum heads (this includes my V8)
> >>
> >> James Nazarian
> >> 71 B Roadster
> >> 71 BGT
> >> 63 Buick 215
> >>
> >> "Aerodynamics are for people who cannot build engines"
> >> Enzo Ferrari
> >>
> >> ----------
> >> > From: Simon Matthews <simon_atwork@hotmail.com>
> >> > To: mgs@autox.team.net
> >> > Subject: Re: Aluminum heads -- spark plug torque
> >> > Date: Thursday, May 25, 2000 5:59 PM
> >> >
> >> > I remember being told (or reading) that one screws the plug in until the
> >> > gasket is toght aganst the head (not but not compressed), then give the
> >> plug
> >> > a 1/4 turn to compress the gasket. This only works on brand-new plugs,
> >> > though! Any comments on this?
> >> >
> >> > Having fitted plugs into aluminium heads, I would think one would have to
> >> be
> >> > over-tightening rather drastically to strip the threads.
> >> >
> >> > Simon
> >> > ________________________________________________________________________
> >
> >
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