Jim
Just remember that if it is not puking it is not overheating. The
first time I took my Tiger to a show it puked.
I cleaned the radiator and heater core and then I used some Prestone HD
flush on the whole of the system. I also installed a Ford 6 blade fan.
This basically fixed the problem for me.
The stock Tiger cooling system is borderline with a stock Tiger engine. Add
more power and you need more cooling
Ron Fraser
-----Original Message-----
From: James Lindner [mailto:jliny5@cox.net]
Sent: Wednesday, March 21, 2012 6:29 PM
To: rfraser@bluefrog.com; 'Smit, Theo'; CoolVT@aol.com;
tigers@autox.team.net; dave@munroe.ca
Subject: Re: [Tigers] Tiger Cooling
Ron
I definitely use a IR thermometer and I changed out the sender last summer
and now gauge readings are within a few degrees of the thermometer reading.
I'll flush out the rad when I install the pulley. Then, as you suggest, I'll
hold off on the foam until I see the results.
As I mentioned to another Lister, I have never actually overheated. Engine
runs at 190-195 highway but creeps up to 205-215 in traffic, especially on
warm days. Once it hits around 200 it starts to affect performance of the
carb...stumbling at low RPMs. I made sure the lines were clear of everything
between the filter and carb (thanks to awtiger). In addition, I am
installing a 1/4 inch phenolic spacer and I also might sleeve the rubber
fuel lines.
Right now my Tiger is at a friends house because I have no room in my one
car garage. I am getting a lift installed in a few weeks so that will make
getting under the front end easier to pack in that foam if I have to.
Thanks, Jim
-----Original Message-----
From: Ron Fraser
Sent: Wednesday, March 21, 2012 2:00 PM
To: 'James Lindner' ; 'Smit, Theo' ; CoolVT@aol.com ; tigers@autox.team.net
; dave@munroe.ca
Subject: RE: [Tigers] Tiger Cooling
Jim
I personally do not like the idea of foam in the engine bay as a
permanent fix; temporary check OK. I'm just concerned that foam will
absorb oil and somewhere down the road start to smoke or catch fire.
Clean out the cooling system first before adding fixes. Clean the radiator
out and clean the heater core out then work the system as needed. Prestone
use to make a great HD flush, a dry chemical 2 part system. Unfortunately it
is no longer available and the current group of Flush products seem mostly
worthless. I recommend pulling the radiator and heater core out to be
cleaned.
Air flow is your friend, the more the better cooling. Every Tiger
is a little different when it comes to cooling so step through it and check
results one step at a time. Yes, it takes longer but you will know which
step is working for you and which are not plus you can report about them
individually. Nothing wrong with stopping with fixes when you get to a
desired position with cooling; it leaves some future steps that you may
never need. Its always your choice.
There is a real good chance that changing to the smaller diameter pulley
with the 6 blade fan will be more than sufficient for your Tiger.
Always use a thermocouple or IR temp reader to verify engine temp. The stock
gage may not be correct; mine reads a bit low so when my temp gage reads 200
I pop the hood to let heat out. This situation only happens to my Tiger
when I go from extended expressway to gridlock conditions.
Ron Fraser
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