[Healeys] Cold Air Box

Patrick & Caroline Quinn p_cquinn at tpg.com.au
Wed Feb 3 16:33:30 MST 2021


Hello

 

The cold air box wasn’t first used by the Donald Healey Motor Company with the first BN1s fitted with the Le Mans kit.

 

They were being fitted to the Warwick built Healeys as early as 1946. Here is a photo of one fitted to our 1948 Healey Duncan Sports Saloon not long after it arrived in my garage. The entry for the air is two 1 ½ inch tubes that are at the bottom pointing to the ground. The exhaust is on the other side of the engine.

 

Hoo Roo

 

Patrick Quinn

Blue Mountains, Australia

 

From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Bob Spidell
Sent: Thursday, 4 February 2021 2:13 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Cold Air Box

 

Side note: David Nock once showed me an 'original' 100M CAB. It was fab'd--not particularly well--out of sheetmetal and fastened with rivets. Anyone know when the fancy, cast(?) aluminum ones were added?

We have an aftermarket one, and I don't remember any issue finding bolts to fit. I'll look today to see if I can figure out what we used.

Bob

On 2/3/2021 3:49 AM, john harper wrote:

Micheal 

 

If the airbox is not an original and aftermarket then the thread could be metric.

 

On Wed, 3 Feb 2021 at 05:35, Michael MacLean <rrengineer.mike at att.net> wrote:

Can someone tell me what size thread is used to bolt the cold air box to the HS6 carbs on my BN2?  I tried 5/16" UNF and BSF.  Neither fit.  They both start to thread in, but stop after less than a turn. 

Mike MacLean

 



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