[Healeys] Tapitty tapping of Fuel Pump

[Richard Collins]

Agree;
mine is an original with the asbestos still on it in ok condition. That doesn’t concern me.
My minor issue ( other than being lazy) is I have 3 spacers between the manifold and the carbs and no room on the studs for nuts to be put on if I install the shield unless I drop a spacer.
I just need to do it as I have ample time these days unfortunately due to CV19
Regards,
Richard C
BN7 #440


On Jun 22, 2020, at 14:20, Ian Hey via Healeys <healeys at autox.team.net> wrote:


If one is going to fit a carburettor heat shield for the first time, stainless steel would be a good choice of material since it is a three times better insulator than carbon steel.  Then, make a stainless piece the same shape as the old asbestos, attach it with bolts with a nut between the two for a spacer, for an improved version.

Ian

From: Healeys <healeys-bounces at autox.team.net> On Behalf Of Richard Collins
Sent: 22 June 2020 19:08
To: warthodson at aol.com
Cc: editorgary at aol.com; healeys at autox.team.net; eyera3000 at gmail.com
Subject: Re: [Healeys] Tapitty tapping of Fuel Pump

Just to continue the vapor lock talk, I don’t think my early BN7 had a heat shield on it as OEM. So several years ago after not driving much in the hot summers due to vapor lock issues,  I bought a used but good heatshield  from someone on the list to put between the carbs and the intake manifold.
I have yet to put it on as it sits on the pile of “to do” things but I am sure it would help as well.
Regards,
Richard C



On Jun 22, 2020, at 13:00, warthodson--- via Healeys <healeys at autox.team.net<mailto:healeys at autox.team.net>> wrote:

I am going to assume by "draw heat away from the fuel line" you mean they block the heat from the exhaust system from being absorbed by the fuel line. That would mean that they act as an insulator between the heat source & the cooler fuel & fuel line. A cloths pin is about 1/2" wide. To have any measurable effect at all you would have to line the fuel line with cloths pins for several feet.
The purpose of a heat sink is to rapidly transfer heat from the heat source (exhaust) to another fluid (fuel line). Luckily, wood is not a good material for a heat sink.
Gary

-----Original Message-----
From: i erbs <eyera3000 at gmail.com<mailto:eyera3000 at gmail.com>>
To: warthodson at aol.com<mailto:warthodson at aol.com>
Cc: Alan Seigrist <healey.nut at gmail.com<mailto:healey.nut at gmail.com>>; Gary Anderson <Editorgary at aol.com<mailto:Editorgary at aol.com>>; healeys at autox.team.net<mailto:healeys at autox.team.net> <healeys at autox.team.net<mailto:healeys at autox.team.net>>
Sent: Mon, Jun 22, 2020 12:32 pm
Subject: Re: [Healeys] Tapitty tapping of Fuel Pump
clothes pins act as a heat sink and draw heat away from the fuel lines. easily moved about to locate best location.
worked on my 65 Oldsmobile that I got in 1973. and my Healey in the late 70s and 80s in Los Angeles.

On Mon, Jun 22, 2020, 10:20 AM <warthodson at aol.com<mailto:warthodson at aol.com>> wrote:
Explain how they work, please.
Gary Hodson


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