Lets talk radiators
Posted: 26 Apr 2019 08:12
Just before my immediate past trip (around the Okovango), I picked up that the original copper/brass radiator in Skilpad has developed a small leak.
In Maun last week, just before leaving civilisation, I gave the radiator some scrambled egg for breakfast (an old bush trick). This certainly did the job and I got through the trip without any further leaking. The long term solution cannot be the occasional egg in the morning though.
However, I have for a while been mulling over the effectiveness of my copper/brass radiator in my 4.8 GQ. The radiator is still the original from the TB42 carburattor engine (if original it is therefore more than 20 years old). Before the leak though, the cooling was in any event not as effective as it should be. But this is in no small measure also due to not having a cowling at the moment.
So I have been doing some desktop research (read "internet") on options.
One big debate is the copper/brass original factory radiator versus after-market aluminum radiators.
The following links were informative:
https://www.cgj.com/2013/06/27/aluminum ... at-debate/
https://www.cgj.com/2013/06/28/aluminum ... fferences/
https://www.cgj.com/2013/07/02/aluminum ... ptibility/
https://www.cgj.com/2013/07/10/aluminum ... intenance/
https://www.cgj.com/2013/07/16/aluminum ... -thoughts/
To spare you the detail here is the decision making final summary:
Use aluminum if the following apply:
a) The original radiator was aluminum
b) Space under the hood is limited
c) Air flow or over-heating is an issue
d) You add a bigger engine to a vehicle
e) Weight is a major consideration, such as in racing
f) The vehicle or equipment needs a heavy duty radiator to withstand additional pressure and heat
g) You are unsure of which type of radiator to use
(b), (c), and (d) certainly applies to Skilpad and possibly (f) given the hard work we put our cars through, in sand, rocks (slow moving) and dunes. Often in extreme conditions.
And here is an interesting final thought:
"Copper-brass radiator can still be used if your vehicle was designed for it. Typically this applies to antique vehicles using original parts. If you are working hard to maintain the original look of the vehicle, then you should stick with copper-brass. On the other hand, if you have heavily modified your vintage car, you may need to switch to an aluminum radiator."
So if your GQ is still original (such as the TB42s) then sticking to copper/brass is still recommended.
In Maun last week, just before leaving civilisation, I gave the radiator some scrambled egg for breakfast (an old bush trick). This certainly did the job and I got through the trip without any further leaking. The long term solution cannot be the occasional egg in the morning though.
However, I have for a while been mulling over the effectiveness of my copper/brass radiator in my 4.8 GQ. The radiator is still the original from the TB42 carburattor engine (if original it is therefore more than 20 years old). Before the leak though, the cooling was in any event not as effective as it should be. But this is in no small measure also due to not having a cowling at the moment.
So I have been doing some desktop research (read "internet") on options.
One big debate is the copper/brass original factory radiator versus after-market aluminum radiators.
The following links were informative:
https://www.cgj.com/2013/06/27/aluminum ... at-debate/
https://www.cgj.com/2013/06/28/aluminum ... fferences/
https://www.cgj.com/2013/07/02/aluminum ... ptibility/
https://www.cgj.com/2013/07/10/aluminum ... intenance/
https://www.cgj.com/2013/07/16/aluminum ... -thoughts/
To spare you the detail here is the decision making final summary:
Use aluminum if the following apply:
a) The original radiator was aluminum
b) Space under the hood is limited
c) Air flow or over-heating is an issue
d) You add a bigger engine to a vehicle
e) Weight is a major consideration, such as in racing
f) The vehicle or equipment needs a heavy duty radiator to withstand additional pressure and heat
g) You are unsure of which type of radiator to use
(b), (c), and (d) certainly applies to Skilpad and possibly (f) given the hard work we put our cars through, in sand, rocks (slow moving) and dunes. Often in extreme conditions.
And here is an interesting final thought:
"Copper-brass radiator can still be used if your vehicle was designed for it. Typically this applies to antique vehicles using original parts. If you are working hard to maintain the original look of the vehicle, then you should stick with copper-brass. On the other hand, if you have heavily modified your vintage car, you may need to switch to an aluminum radiator."
So if your GQ is still original (such as the TB42s) then sticking to copper/brass is still recommended.