triumphs
[Top] [All Lists]

Re: [TR] TR4 valve cover

Subject: Re: [TR] TR4 valve cover
From: "Randall" <TR3driver@ca.rr.com>
Date: Thu, 2 Apr 2020 22:47:09 -0700
Cc: <triumphs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <005d01d60948$a9ef5ce0$fdce16a0$@ranteer.com> <15FFB41A-0112-4FF7-BED5-10FCF74C450F@yahoo.com> <039701d60970$5244b530$f6ce1f90$@roadrunner.com>
Thread-index: AQGjvYpCS0ho/mHadCC2tcgwtAmMswK+0rOhqLVtw2CAAAk6IA== hYayVZgJmn25uTEl5VgFtm2Rdc5z++COMs4m4rwGaCtIySNa2sNckPZw
> 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?  

One approach is to modify the air filters yourself.  Easy lathe project if
you have access to a lathe; or something like this
https://amzn.com/B01C9A386Q
Combined with a NPT to hose barb adapter like this
https://amzn.com/B07TYJMGXJ

This might make more sense with a K&N filter or similar, so you don't have
to keep redoing it every time you replace the filter element.  Here's a
clever approach
https://is.gd/KqiAkQ

Another, less elegant solution is to just attach a longer length of tubing
to that port and let it hang down below the frame rail.

Yet another solution would be to drill & tap the intake manifold, and add a
PCV valve ala TR4A
https://i.imgur.com/nfIpy40.jpg

And finally, you could install a crankcase evacuation system that taps into
the exhaust.
https://i.imgur.com/EKNowxs.jpg  (photo from Joe Alexander)
https://is.gd/HmzoKv

The exhaust port gets really hot, so be sure to use high temperature
silicone hose.

-- Randall

** triumphs@autox.team.net **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive


<Prev in Thread] Current Thread [Next in Thread>