Hi David,
I'd suggest not putting the oil cooler that far out in front of the
radiator. It will mess with the air flow to the radiator too much. I agree,
too,
with Robert B., you'd be much better off configuring the elec. fan as a puller,
behind the radiator. (When rigged as a pusher, it actually blocks quite a bit
of airflow.) By rigging it instead as a puller, you will find you have another
alternative location for the oil cooler, that makes for relatively pretty easy
installation.
The best solution for a street car - given that you don't want to cut an
intake - would be to put the oil cooler smack up against the front of the
radiator. It's helpful that standard 10, 13 and 16 row oil coolers are usually
the
same width as the tall TR3/4 radiator (at least all the ones I've seen).
Putting it against the front of the rad will not disturb air flow much and the
slightly pre-warmed air really shouldn't reduce the radiator's effectiveness
significantly (and will be more than offset by the additional cooling provided
by
lower oil temps). This suggestion is actually taken from Mocal's website a few
years ago. In a nutshell, they stated that if the cooler and the radiator must
share the same air flow, the cooler should be as close as possible just in
front of the rad. Use a few rubber spacers to help keep them from vibrating
against each other, I'd suggest.
In fact, depending upon how it's positioned, an elec. puller fan can then
serve both the rad and the oil cooler. You'll need to remove the mechanical
fan from the front of the engine to configure the elec. fan as a puller. Leave
the fan hub extension in place, it also serves as a sort of primitive harmonic
balancer (there are true harmonic balancers available from
_www.britishframeandengine.com_ (http://www.britishframeandengine.com) , and
others, if you'd
prefer to remove the hub ext. entirely).
Be sure to use a thermostat in the oil coolers lines, to keep from
overcooling the oil. That would be almost as bad as overheated oil. Mocal now
offers
a neat oil cooler take-off combined with a 185 degree thermostat. It's just a
sandwich plate that works well in combination with a spin-on filter and
spin-on filter converter on a TR. Photos of this installation on my TR4 can be
seen
at the "Triumph Owners" link below.
Cheers!
Alan Myers
San Jose, Calif.
_amfoto1@aol.com_ (mailto:amfoto1@aol.com)
'62 TR4 CT176092L
_http://www.triumphowners.com/640_ (http://www.triumphowners.com/640)
(http://www.triumphowners.com/640)
****************************************************
I am looking for some guidance on the location of an oil cooler on a TR3A.
I have only seen race prepared and the cooler is mounted behind the valence
with a cutout for air passage. I prefer not to do that for my car which is
a
street car. Is mounting it forward of the crank fixture behind the grill
too
much obstruction for the radiator? (My radiator no longer has a crank
hole). This is a 13 row cooler and I am assuming the stainless hoses are
long
enough to go there. An electric pusher fan is being installed.
TIA
David Lylis
69 TR6 CC26160L
60 TR3A TS74461LO
(http://www.triumphowners.com/640)
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