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Re: [Healeys] BN1 PCV system

To: healeys@autox.team.net
Subject: Re: [Healeys] BN1 PCV system
From: Bob Spidell <bspidell@comcast.net>
Date: Sat, 30 Jan 2021 14:41:20 -0800
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAB3i7LLmnzgqv4wwoUekiTKza2qacCPH7xGRv8fJ4JXoyG_44Q@mail.gmail.com>
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Looks clean, Michael. I am considering similar for my BN2 (but I plan to 
fab a plate with an elbow to replace the road draft tube). If you plug 
the valve cover vent, you'll have a 'system' similar to what I have on 
my BJ8, which is an updated version of the original Norman Nock design. 
This isn't really a PCV system, as the crankcase and valve cover will be 
under continuous vacuum. I suspect some air is drawn in from the rear 
'seal,' which is not filtered but helps to alleviate the infamous Healey 
bellhousing drip, and likely doesn't affect mixture all that much. If 
you leave the vent open--I'd put an air filter on it--you'll have a 
genuine PCV system as air will be constantly circulated through the 
crankcase and top end. This is what I plan to do, but my 100M is vented 
to the CAB, for which I have a large K&N filter on the intake duct in 
front of the radiator.

Which PCV valve did you select?

Bob



On 1/30/2021 12:20 PM, Michael Salter wrote:
> After months of deliberation I have constructed this PCV system for my 
> BN1.
> The original road draft tube has been plugged just below the PCV valve 
> takeoff.
> Of importance was that the system would be almost impossible to see 
> without very close inspection.
> I'm still trying to decide if I should plug the normal valve cover 
> vent or leave it open to serve as the PCV system intake.
> Thoughts?
>
> M
>

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