G
Guest
Guest
Hi Guys,
I just returned from Algeria when I spent entire month traveling in
southern parts.
My kzj95 survived the trip without any problems although the driving was
really tough. The only problem I had was related to temperature rise on
long dunes while pushing the engine close to red for some time. But I
managed to avoid any overheating.
When I came back I tested the viscous coupling and it turned out that it
was the reason for problem. The guys who tested the visco told me that
it is very important that the radiator size (amount of coolant)
shouldn't differ too much in size from the original radiator (I replaced
original 2 cell aluminum with 3 cell cooper approx 0.5 l more coolant).
When I think about that it not clear to me why this might be a problem
since bigger radiator should provide bigger convective surface. If I
understood correctly it has something to do with temperature related to
bi-metal in visco which might be to low and consequently the fan is
spinning at lower speed - but on the other hand if the temperature is
lower why would it be a problem ...(of course I'm taking about
overheating problem) Nevertheless I replaced the visco with original
one ... and I hope that the problem is solved.
Can anybody explain me why the size difference might be an issue ? Let
say 1 l of coolant more ...
My second question is related to auxiliary fans since I think that on
one hand they might be helpful (long dunes at low speed in hot weather)
but on the other hand they are also a barrier for the engine air flow.
Has anybody tried to install some auxiliary cooling fans (pusher type)
in front of the radiator (or A/C unit) ?
Thanks in advance for your help & regards,
Tomaz
I just returned from Algeria when I spent entire month traveling in
southern parts.
My kzj95 survived the trip without any problems although the driving was
really tough. The only problem I had was related to temperature rise on
long dunes while pushing the engine close to red for some time. But I
managed to avoid any overheating.
When I came back I tested the viscous coupling and it turned out that it
was the reason for problem. The guys who tested the visco told me that
it is very important that the radiator size (amount of coolant)
shouldn't differ too much in size from the original radiator (I replaced
original 2 cell aluminum with 3 cell cooper approx 0.5 l more coolant).
When I think about that it not clear to me why this might be a problem
since bigger radiator should provide bigger convective surface. If I
understood correctly it has something to do with temperature related to
bi-metal in visco which might be to low and consequently the fan is
spinning at lower speed - but on the other hand if the temperature is
lower why would it be a problem ...(of course I'm taking about
overheating problem) Nevertheless I replaced the visco with original
one ... and I hope that the problem is solved.
Can anybody explain me why the size difference might be an issue ? Let
say 1 l of coolant more ...
My second question is related to auxiliary fans since I think that on
one hand they might be helpful (long dunes at low speed in hot weather)
but on the other hand they are also a barrier for the engine air flow.
Has anybody tried to install some auxiliary cooling fans (pusher type)
in front of the radiator (or A/C unit) ?
Thanks in advance for your help & regards,
Tomaz