[TR] TR4A Crankcase Breather Regulator Valve ?

Jerry Van Vlack jerryvv at roadrunner.com
Mon Sep 28 16:36:55 MDT 2009


I forgot to add that you should also run a vented filler cap of some sort. 
Don't know what provisions the new valve cover has for that.
JVV
----- Original Message ----- 
From: <jerryvv at roadrunner.com>
To: <triumphs at autox.team.net>; "Jim Olson" <tr4ajo at cox.net>
Sent: Monday, September 28, 2009 1:28 PM
Subject: Re: [TR] TR4A Crankcase Breather Regulator Valve ?


> 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 at 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


More information about the Triumphs mailing list