Thanks for the heads up Jim. Real world evidence that at least at times the pipe sealant is not up to the task on an
exhaust bolt.
Gary H.
>
> When I put my motor together I used Earl’s pipe sealant on the
> exhaust studs and unfortunately it leaked just enough to steam a
> little once the engine warmed up. I switched to Ultra Copper and the
> problem is solved.
>
> Unfortunately to do so I had to remove the headers but lesson learned.
>
> Jim
>
> On Friday, August 9, 2019, 12:10 PM,
>
> > I've not done it but I've heard about using pipe thread compound,
> > like the stuff used in high temperature heater boilers,
> >
> > which supposedly only requires coating the bolts and installing.
> > When using high temp sealants like Permatex (red
> >
> > copper etc.) "dry and clean" is the condition required for the bolt
> > hole. Then let the car sit overnight before starting the
> >
> > engine.
> >
> > Thanks,
> >
> > Gary H.
> >
> >> -------Original Message-------
> >
> >> Hi Dennis
> >
> >>
> >
> >> I struggled with this issue also. I hope you don't have to pull
> > the
> >
> >> steering column out like I did to fix the problem!
> >
> >> I used Permatex High Temp Thread Sealant.
> >
> >>
> >
> >> If my feeble memory is correct, Ehrenberg suggested just using
> >
> >> plumbers pipe thread sealant.
> >
> >>
> >
> >> Best of Luck,
> >
> >> Lyle
> >
> >> On Friday, August 9, 2019 at 9:26:16 AM UTC-4, dennis.1963ply
> > wrote:
> >
> >>
> >
> >>> Hello,
> >
> >>>
> >
> >>> I have put up enough with a couple of exhaust studs leaking
> > coolant.
> >
> >>> The guy who put it together (me) many years ago must not have
> >
> >>> sealed them well enough. What do you guys recommend for sealing
> > the
> >
> >>> studs.
> >
> >>>
> >
> >>> Thanks
> >
> >>> Dennis C.
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