No, it communicates through to the back of the belt housing casting and from
there through into the engine block. The hole in that fitting is pretty
small though.
I have a blown Sprite with the belt drive. I have a breather running from
the back of the rocker cover, and another as high as I could get it on the
side of the sump. I cut one of the separator cans off an original A-series
timing chain cover and welded it into the side of the sump. The sump is
baffled and I haven't had any problems. The breather from the timing belt
housing is also present.
I have also fitted a 'proper' seal to the rear main, no leaks from there!
Neil
----- Original Message -----
From: Chris Kantarjiev <cak@dimebank.com>
To: <british-cars@autox.team.net>; <vintage-race@autox.team.net>
Sent: Thursday, November 22, 2001 8:41 PM
Subject: Mini Spares Center adjustable belt timing setup for A series
> If you don't have one of these, you can skip the rest of this message.
>
> I've got one on the 1380 in our street Morris. It has a "vent port"
> that I blocked, because I didn't have a convenient place to run
> the vent.
>
> I'm now chasing crankcase overpressure (leading to oil leaks) and
> wondering if it's worth hooking this up to something. I pulled out
> the bolt I blocked it with, there's indeed a hole leading to ...
somewhere.
>
> The question is - where? It doesn't appear that it could really
> lead to the main crankcase, since the front engine plate directly
> in the path of the hole seems to be hanging out in the air.
>
> Is it just venting the belt area? If so, why is this useful?
>
> Thanks,
> chris
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