4.2 TD GU OVERHEATING HAVEN'T HEARD

I was interested too. So asked Roachie.
He sent me a photo of his dash from inside after a run

[ View Image]

G'day 120,
Mate the jury is still out, but I'm beginning to see the bigger picture here. I now believe the motor has been set-up to run around the 95oC to 105oC area as a means of ensuring maximum fuel is burnt and pollution is minimised.
Mine still gets up to around 105oC when I'm pushing along into a head wind or up a steepish hill whilst maintaining the speed limit. I've decided that this is normal and I ain't gunna worry about it anymore.

It should be noted that NOBODY has actually reported on here (or anywhere else AFAIK) any case of the 4.2 GU ever actuallu OVERHEATING (ie: to the point where they have had to pull over, rebuild motor/radiator etc). It seems it is just something we've gotta live with.

As for the MTQ set-up, I hope Trendy won't mind me saying that he is still seeing his gauge go up past half way on occasions and he is anxiously waiting for the summer months to come to see what happens then.

Cheers mate

Roachie

I have td42 1999 patrol ute and have turbo upgrade and intercooler in front of
radiator. Have had overheating problems when towing uphill and going into headwind. however removed spotties from bull bar and when turbo upgrade and 3" exhaust I believe that they reduced amount of fuel flow to engine and no problems now, also now have set of "accurate guages" and doesn't get to 105c.

Hope this of some help ..... Hanson

Gday fellas
my pyro has got to 800 at max torque without too much hastle.....pyro is just at the mouth of the turbine housing.
Id be interested to know what temp the patrol thermistat is rated at....105 is well it doesnt leave much room for error....BTW thats not farenheit is it???...lol
Sorry couldnt help but rub it in....my Toyota oil gauge might not work properly....but the temp does...it stays round the half usually....i lost my lights on the bar along time ago...have put tags up top for outback travels.
Andrew
fzj80t

but isn't your thermocouple located in the exhaust BELOW the turbo?

Thats where all the major engine (Cat, Cummins, MTU) manufacturers put them