Additional Engine Cooling System

[James Hutchings]

Curt was right I did install a mist system on my 82 FC.
I used 12 industrial type spray nozzles got them form Mc master car. There
is a copper tube snaked and fastened to the inside of grill with a tee for each
spray head. The cooper tube comes up to a union up by the radiator fill door so
that it can be disconnected to remove the grill. I have a boost pump that takes
the house water pressure up to 100 psi after is goes thru a refrigerator ice
maker filter to remove minerals. The boost pump is not necessary it is part of
my engine water injection system ( a whole other subject). The water flow is
controlled by a solenoid valve operated by a switch on the dash. What I learned
is you need several nozzles to do any good.. since you are limited to a short
distance from the grill to the radiator, and the huge amount of air moving
across the radiator the water is sucked threw a small surface area. If you are
somewhat forgetful install a button instead of a switch. If you forget and
leave it on you will run yourself right out of water. On the forward control is
was simple to install all the equipment in the propane tank area and tee off of
the water drain line.
I had a store bought system on a 90 Marathon it operated on a pulse system
and a small pump that you plumbed into the suction side of the fresh water
system. It had a tubing ring with nozzles fastener to the radiator. The
problem is it would not work at hwy speed. You needed to pull over and let the
engine idle so that the water would spread across the radiator.
In addition to the spray system I installed a secondary radiator. This is an
industrial transmission cooler about 18 by 30 inches. The radiator is mounted
flat mid chaises up inside the frame members with a electric thermostatically
controlled fan over the top. I routed the heater hoses through the radiator
after the flow had gone through all other heating elements. The end result is
my main fan only comes on during a heavy grade.
WHY did I spend so much time effort and money to add all this cooling gear?
Because it turned out that I had either a cracked head, engine block, or a bad
head gasket ( I just got ticked and put a 250 HP complete engine in instead of
fool with it any longer. Hence I do not know where the leak was.. just that it
was.) that was letting exhaust gas in to the cooling system. So if you were
hitting 250 F on a 3208 FC NA I would be absolutely certain to have the radiator
water checked for exhaust gases before I did anything else.

Jim Hutchings
82 FCRB
Yorba Linda, ca


----- Original Message -----
From: erniecarpet@...
To: WanderlodgeForum@yahoogroups.com
Sent: Thursday, June 21, 2007 1:52 PM
Subject: Re: [WanderlodgeForum] Additional Engine Cooling System


Hi Ralph, good thought on the scoop. I'd like mine in stainless. You make
'em, we'll buy 'em.

Ernie Ekberg
83PT40
Livingston, Mt

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