[Healeys] Engine temps too low.

[Chris Dimmock]

No Dave, I had the head machined, on the outside, where the plugs  
screw in.
So the plus now protrude into the chamber.
Chris


Sent from my iPhone

On 04/10/2010, at 1:32 AM, "Dave Porter" <frogeye at porterscustom.com>  
wrote:

> ...so are you using a longer reach plug and what are your findings?
> dp
>
> frogeye at porterscustom.com
>
> Porter Customs   2909 Arno NE
> Albuquerque, NM USA 87107
> 505-352-1378
> 1954 BN2  1959 AN5
> Porter Custom Bicycles
>
> cars:
> www.britishcarforum.com/portercustoms.html
> gallery:
> http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff
>
> blog: http://porterbikes.com/
>
>
> -----Original Message-----
> From: healeys-bounces at autox.team.net [mailto:healeys- 
> bounces at autox.team.net]
> On Behalf Of Chris Dimmock
> Sent: Sunday, October 03, 2010 8:26 AM
> To: Bob Spidell
> Cc: healeys
> Subject: Re: [Healeys] Engine temps too low.
>
> Bob, if you fully screw the plug into a late 12 port head on your
> bench, and the look at the combustion chamber, you'll see that
> although the plug is fully seated & sealed, there are still exposed
> head threads between the end of the plug and the chamber.
> I.e. The plug doesn't protrude into the combustion chamber fully as
> per every westlake head design. Therefore it needs to be fired earlier
> I'll try and take a pic.
> Chris