GU 4.2 getting hot has anyone tried this as a possible fix

Submitted: Monday, Jan 07, 2008 at 11:10
ThreadID: 53199 Views:8006 Replies:7 FollowUps:9
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Our GU 4.2 Turbo suffered the same getting hot issue towing our newly acquired second hand off-road caravan at xmas , was fine temp wise according to the standard temp gauge, except when we started to climb the Binjour plateau, it's a sneaky climb for a couple of minutes and finishes with a steep climb at the end, it was 38 degrees in the cab so probably 40 + off the black top.
The patrol has a 3" exhaust , Garrett B/B turbo & liquid to air intercooler with the intercooler radatior front mounted. I intend to fit a water temp gauge & EGT gauge so I know exactly what is happening.
Having read on this forum and others what has been done to try and solve the problem with (in most if not all cases that I have read about) having only achieved a minimal improvement if at all, I was wondering if anyone has heard of an after market water pump (replaces the existing one) that is available that is supposed to increase water flow and therefore the motor runs cooler. Is this wishful thinking, has anyone tried this , don't want to spend $$$ for a nil or minor improvement. Have also been told that and electric water pump can be fitted which will fix the problem, any comment / feedback would be greatly appreciated.
Thanks in advance.

Regards Guy
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