[TR] TR4 valve cover

[Bob Westerdale]

 That filter is a good idea if you're planning on using the road tube to evacuate the crankcase and allow a stream offresh ( now filtered) air into the engine's internals.   While it may be an appealing approach ( ie scavenging all the blow-by out the tube, and replenishing the air)   I can only report that lightly 'sealing' the oil filler so that little or no vapors go in or out( I added a rubber insert to the original breather cap)  and just allowing the blow-by to exit the engine on it's own ( with some slight suction from the road tube) has been quite successful, no stink, no oil vapors and no oil burning or leakage ( beyond normal)I do regret that my blow-by is not handled in a 100% environmentally responsible manner,  ( ie.  routing it back into the manifold)but when I see the kid with the 300 hp RiceBurner up the street smoking his tires to destruction, I'm not so sure my casual drivingis much of an offense....thanksBob
    On Friday, April 3, 2020, 01:26:40 PM EDT, John Linney <john at linneyweb.com> wrote:  
 
 I have seen people route that vent to a catch can, or even just perch a small breather on it. Like this https://mossmotors.com/engine-breather-filter-inlet




On Apr 2, 2020, at 9:28 PM, Jim Mills <jbmills at roadrunner.com> wrote:





Bill’s comment begs a question or two.  My later TR4 has the valve cover vented to the carbs.  You cannot (at least I have not found any) buy any of the air filters for this system.  How do I remedy this problem?  I was told to NOT plug that vent from the valve cover.  Suggestions?  Jim Mills

  

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of bill beecher
Sent: Thursday, April 2, 2020 6:03 PM
To: dave <dave at ranteer.com>
Cc: triumphs at autox.team.net
Subject: Re: [TR] TR4 valve cover

  

Isn’t you valve cover vented to the carbs?  Maybe a plugged PCV valve?  If so, I would think you should not have a vented cap.  

Bill

Stay Home, Wash Your Hands. 


On Apr 2, 2020, at 7:41 PM, dave <dave at ranteer.com> wrote:



My early TR4 (9,XXX) spits oil all over its nice chrome valve cover from the breather cap

 

Is there anything I can do about it other than clean it often?

 

Btw it has 89 mm pistons, mild cam, polished/ported/shaved head, etc

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