Richard,
Agree with what you've said; just wanted to point out that there is an
insulating gasket/shim between the intake and exhaust manifolds.
Bob
62 BT7
richard mayor wrote:
> Jet Hot what? Are you talking about headers? Or, stock cast-iron exhaust
> manifolds? The stock set-up has an aluminum intake manifold directly bolted
> up to the VERY HOT iron exhaust manifold. What were they thinking? Did they
> forget that the exhaust heat will go directly from the aluminum intake
> manifold right into the aluminum carburetor? Why is anyone surprised that fuel
> boiling over in the back carb, or, any carb for that matter, was not
> anticipated? Aluminum transfers heat faster than stink. My suggestion is (1)
> modify the connection between the cast-iron exhaust manifold and the aluminum
> intake manifold (because no one drives their Healey in the middle of winter
> and needs that extra heat), or (2) replace the exhaust manifold with a set of
> tubular headers. Then, in either case, ceramic coat (Jet Hot is a brand name)
> the exhaust manifold / or / header because it will retain more heat within and
> reduce the under carb/bonnet temperature. Cooler carbs/fuel make more power
> and eliminate many unnecessary problems. Richard Mayor
>> Date: Tue, 13 Jan 2009 10:39:06 +0800> From: healey.nut@gmail.com> To:
> peter.svilans@rogers.com> CC: healeys@autox.team.net; linsley46@gmail.com>
> Subject: Re: [Healeys] BN 7 MkII heat shield> > If you jet hot the headers, it
> will help immeasurably with boiling over on> the carbs.> > Alan> > '52 A90>
> '53 BN1> '64 BJ8> >
> _________________________________________________________________
> Windows Live: Keep your life in sync.
> http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> You are subscribed as rchaskell@earthlink.net
>
> http://www.team.net/archive
_______________________________________________
Support Team.Net http://www.team.net/donate.html
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
http://www.team.net/archive
|