[TR] TR4 bypass hose question

[Randall]

Jim, we've debated this often. Its my opinion that blocking the bypass is not necessary, and may lead to unpleasant side effects (like a cracked head). Even Triumph later deleted the sleeved thermostat.

So you might want to try leaving it open.

To answer your question, I've heard that a 3/4" copper pipe cap fits well in the hose. I chose a different route, and tapped the fitting on the water pump housing for a pipe plug.
-- Randall

On 19 April 2019 06:17:29 GMT-07:00, Jim Henningsen <trguy75 at gmail.com> wrote:
>I would like to install a regular (non bellows) 160 degree thermostat
>in my
>62 TR4.  I am hearing that to do so I need to block off the bypass
>hose.
>I'd like to keep the stock look of the bypass hose installed.  Is there
>a
>particular plug or bung that folks have used to insert into the bypass
>opening on the water pump housing or thermostat housing that is
>effective.  
>Thanks in advance.
>Jim Henningsen
>Ocala, FL 34471
>
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