Yes if you do not install a breather like is used on TR3 or TR4 engines. You
will end up developing pressure inside the engine and blow oil out of places
you don't even know in addition to the normal leak paths. On a TR4A you need to
remove the blanking plug below the fuel pump and insert a breather pipe.
I've been running mine this way for years. Not easy to do with the engine in
the car but it can be done. Be careful to remove the plug and all of the pieces
if you decide to do this.
JVV
---- Jim Olson <tr4ajo@cox.net> wrote:
> Hi List,
>
>
>
> I've been following this list for years but this is my first submission. I
> have an aluminum finned valve cove that I'd like to use on my TR4A. The
> finned valve cover does not have a tube extending from it for connecting to
> the Crankcase Breather Regulator Valve. My question is will there be any
> potential problems if I remove the Crankcase Breather Regulator Valve and
> seal up the hole on the inlet manifold?
>
>
>
> Thanks,
>
>
>
> Jim
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