<div dir="ltr"><div>What are the O.D.s of the flare of the fitting and the next bit? Dorman sells rubber caps (5/8", 3/4", maybe others), and might have one that could be slipped over the end and secured with a hose clamp. I found a few at Summit Racing, sold as cooling bypass caps. </div><div><br></div><div>Plan B might be to cut off the flared bit and find a cap that fits that part tightly.</div><div><br></div><div>Plan C would be cutting the fitting at the manifold, threading the hole, and using a tapered plumbing plug.</div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br></div></div></div>Chris<div>'64 MGB</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Sep 8, 2025 at 12:50 PM dave northrup <<a href="mailto:dave@ranteer.com">dave@ranteer.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">This engine, once upon a time, had a weber. The manifolds and carburettors have been switched out. This manifold came from a later, pollution equipped car. Bad choice on my part but at the time I didn't know better<br>
<br>
As you can see, there is crank case ventilation going on. <br>
<br>
I need to stop this hole. The bolt in the hose will work for now but I need a prettier permanent solution. <br>
<br>
-----Original Message-----<br>
From: Larry Colen <<a href="mailto:LRC@red4est.com" target="_blank">LRC@red4est.com</a>> <br>
Sent: Monday, September 8, 2025 12:53 PM<br>
To: dave northrup <<a href="mailto:dave@ranteer.com" target="_blank">dave@ranteer.com</a>><br>
Cc: <a href="mailto:mgs@autox.team.net" target="_blank">mgs@autox.team.net</a><br>
Subject: Re: [Mgs] How to block this orifice<br>
<br>
Isn't that crankcase ventilation?<br>
<br>
On 2025-09-08 10:24, dave northrup wrote:<br>
> Early 5 main mgb engine, happens to be in an mga. How do i plug this<br>
> orifice? I had something sealing it, but apparently that was not a <br>
> permanent solution _______________________________________________<br>
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