[TR] [6pack] Spark Plug Heat Range

[David Friedlander]

https://www.amazon.com/dp/B07PGPVVRL?th=1&psc=1&language=en_US

Dave

On Thu, Jun 8, 2023 at 11:50 AM <trguy75 at gmail.com> wrote:

> Hard to find NGK BP6ES now.  BP6RES is available, but I heard the resistor
> plugs not good with pertronix ignition systems.  I went back to champion.
> Jim Henningsen
>
> -----Original Message-----
> From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of Rochlin
> Robert
> Sent: Thursday, June 8, 2023 9:54 AM
> To: Triumphs <triumphs at autox.team.net>; 6pack at autox.team.net
> Subject: Re: [TR] [6pack] Spark Plug Heat Range
>
>         I appreciate all the great feedback on my question about spark
> plug heat range options.  It seems that if I want to incrementally go to a
> cooler (or hotter) plug then NGK seems be the way to go.  Champions  are
> unavailable in a number of heat ranges and the information on their web
> site is confusing.
>         I’ve spent a lot of time this Spring doing unexpected work on the
> 6 including suspension work and fuel delivery issues.  All that is now
> sorted and my plan is to spend some quality cruising time this afternoon.
>         Happy Motoring.
>         Bob
>
> > On Jun 7, 2023, at 10:18 AM, dave northrup <dave at ranteer.com> wrote:
> >
> > I would suggest that first you advance the timing.  You no longer have a
> stock engine and therefore should not rely on the stock timing.
> >
> > Some of my old time mechanic friends have suggested that with these cars
> you should advance the timing until it pings, then back it off a bit.  Just
> a suggestion.
> >
> > Also - do you still have the carbon cannister?  That's actually a source
> of air when you turn the engine off and could be part of the problem.  our
> car runs better without it.  just eliminate the branch that goes to it.
> but be careful about the pipe that goes back to the gas tank.  That has to
> be free and clear or your engine will quit running due to fuel starvation
> because air is not coming in to replace the gasoline that is going out.
> you can just leave the pipe that comes from the back; tie it down and leave
> it open.  And you won't get a gas smell in the garage.
> >
> > Failing that, I would recommend talking to Richard Good.  He is very
> knowledgeable and happy to talk to a customer.
> >
> > We did what you did, with the GP mild cam, triple carbs, lightened
> flywheel, polished, ported, and shaved head, decked block, etc., etc.  we
> are running about 11 to 1 compression.  Our timing is pretty advanced;
> never use a timing light.  We don't have a problem with dieseling.  I'm not
> sure I'm the one to solve the problem for you  but it just seems wrong to
> me that you are having this problem; I don't think it's the plugs.
> >
> > -----Original Message-----
> > From: Robert Rochlin <rrochlin at comcast.net>
> > Sent: Wednesday, June 7, 2023 8:35 AM
> > To: dave northrup <dave at ranteer.com>
> > Subject: Re: [TR] [6pack] Spark Plug Heat Range
> >
> > Hi Dave
> >  Very occasionally my car diesels when I shut down.  I rebuilt the
> engine a few years ago increasing the compression and putting in a
> Goodparts cam.  The timing is spot on and the car runs great. My reasoning
> is that a bit colder plug may eliminate the hot spot source of the
> occasional dieseling.
> > Best,
> > Bob
> > Sent from my iPhone
> >
> >> On Jun 7, 2023, at 9:24 AM, dave northrup <dave at ranteer.com> wrote:
> >>
> >> are
> >
>
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