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
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of James Lindner
Sent: Wednesday, March 21, 2012 12:53 PM
To: Smit, Theo; CoolVT@aol.com; tigers@autox.team.net; dave@munroe.ca
Subject: Re: [Tigers] Tiger Cooling
Hi All
I would really appreciate if somebody could share with me a photo(s) of the
locations where you have inserted foam to block gaps. I have the horn holes
blocked, six blade fan and I am getting ready to install a reduced diameter
pulley. Blocking the gaps seems like another logical step.
Thanks
Jim
-----Original Message-----
From: Smit, Theo
Sent: Wednesday, March 21, 2012 12:42 PM
To: CoolVT@aol.com ; tigers@autox.team.net ; dave@munroe.ca
Subject: Re: [Tigers] Tiger Cooling
Hi Mark,
I don't think that there are any quick cooling aids for the Tiger - all of
them require attention to detail to get more than just a marginal benefit.
The Cressida fan is about 12" diameter and has an integrated steel shroud;
it
just barely fits below the sheetmetal in the nose. I used foam adhesive tape
to seal the gap between the rad matrix and the shroud. The problem you
always
have with pusher fans is that the motor obscures some of the available area;
a
second thing is that if the gaps aren't filled, then the air can just go out
the side rather than through the radiator. The reason why I used this fan is
that it was evidently designed from the outset as a pusher application. A
lot
of aftermarket fans are designed as a puller, and then when they're used in
a
pusher application they really don't move anywhere near the air that they're
supposedly rated at.
The only thing that would be nice is to have a similar fan, but larger, so
that it would move more air over more of the radiator. You'd end up with
part
of the fan output deadheading against the lower radiator support though.
Moving air through half the rad should be more than sufficient, since the
fan
is only required to boost airflow at low speeds. You just have to make sure
that the air you're moving is really going through the rad rather than
around
it, and that it's moving with sufficient speed.
A secondary issue is that if the fan only covers part of the radiator core,
are those core tubes actually flowing enough coolant to do the job?
Theo
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