[TR] Overheating issue

[Don Hiscock]

No doubt that rally plate would block airflow on Hogan's XHP 939.  But
(this week aside) it's not that common for a car in Britain to tax its
cooling system...

More pix of that car for those who don't know it:
https://4xdog.smugmug.com/frame/slideshow?key=sCK6hQ&autoStart=1&captions=0&navigation=0&playButton=0&randomize=0&speed=3&transition=fade&transitionSpeed=2&clickable=1


On Thu, Jun 22, 2017 at 4:41 PM, TERRY SMITH <terryrs at comcast.net> wrote:

> Hmmm... in the last photo, I just realized the license plate obstructs a
> small portion of the grill.  Would that reduce cooling by some single digit
> percent?
>
> On June 21, 2017 at 11:27 PM Don Hiscock <don.hiscock at gmail.com> wrote:
>
> Not all wide mouth grilles are the same as TeriAnn notes.  Even older
> ones, possibly later Triumph spares, aren't quite as open as the
> originals.  Here's one of the key places to look at -- check the crank
> opening on a *very* nice original grille here:
> https://photos.smugmug.com/photos/i-dWhQkQm/0/1f316f4a/X3/i-dWhQkQm-X3.jpg
>
> Note that the TR3S cars at LeMans in 1959 had grilles that were further
> modified to increase the open area  Shown here in a photo from my
> collection.
>
> https://photos.smugmug.com/photos/i-9kP26m3/0/ce101702/X3/i-9kP26m3-X3.jpg
>
> Paul Hogan did something similar on his XHP 939 TR3S tribute car.  Shown
> here in a photo from the 2015 Goodwood Revival:
> https://photos.smugmug.com/photos/i-LhWvQN6/0/73067ad5/X3/i-LhWvQN6-X3.jpg
>
> Another factor not to ignore when resolving cooling issues on a wide mouth
> sidescreen car is the fitment of the fiberboard duct inside the apron.
> Without that the airflow through the radiator is significantly reduced.
> That has to be part of any overheating double check/resolution plan.
>
> On Wed, Jun 21, 2017 at 3:30 PM, Andrew Uprichard <
> auprichard at uprichard.net> wrote:
>
> Wow – never heard of this before.  Bu then I primarily restore
> small-mouths.  But I do have a nice used wide-mouth grille if anyone wants
> to solve their overheating issues,… J
>
>
>
> Andrew Uprichard
>
> Jackson, Mi
>
>
>
> *From:* Triumphs [mailto:triumphs-bounces at autox.team.net] *On Behalf Of *TeriAnn
> J. Wakeman
> *Sent:* Wednesday, June 21, 2017 9:13 AM
> *To:* triumphs at autox.team.net
> *Subject:* Re: [TR] Overheating issue
>
>
>
> On 6/20/17 7:30 PM, Chris Simo wrote:
>
> Overheating. Lots of culprits to pursue. Likely you've cosidered most
> already, but in cases.
>
>
>
> Old radiator with less than optimal connection between the core and fins.
> Worn out water pump (poor flow). Stuck thermostat. Clogged water passages
> in engine ( my tr2 had horrible scale blockage). Bad radiator cap. My
> favorite, electric fan blowing the wrng way (surprised at how often i see
> this).  Incorrect timing.  im sure ive missed some....
>
>
>
> Keep us posted.
>
> Do you have an aftermarket grille? If yes, it may be your culprit.
>
> http://www.tr3a.info/FAQ_grill.html
>
> TeriAnn
>
> --
>
> Book - The Essential Guide to Overland Travel in the United States and
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> 2 years to write and 38 years of travel and camping to learn what to write
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