Running Hot.
Submitted: Wednesday, Jan 19, 2005 at 17:09
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Member -Dodger
Hi all,
Just to let you know what to do in case your 4B is running a little hot lately.
First of all move to the antartic then it will never run hot, Just Joking.
This advice is for all 4B's.
First
check the thermo fan and if it is an oil type clutch job and is not working up to scratch then it CAN be re oiled. Another member posted pics on same. Fairly simple for the do it yourselfer. Tedious but worth the effort Oil is available from Toyota.
Then remove the radiator, takes a little time but is not too hard. Using compressed air blow out the rubbish embeded in the radiator, flush the interior with clean water and re install.
Most vehicles these days have the Air con condenser in front of the radiator and you will be surprised how much junk gets between this and the water radiator.
Clean all this junk out using swmbo vac cleaner then blow the rubbish from the core of the condenser before reinstalling the radiator. This should fix most overheating.
I did all this on my 4.2td Patrol in about 4hrs all up and bingo all ok.
Also some of my club members have done the same to their vehicles both Nissan and Toyota.
Just My 2 bobs worth.
Reply By: Member - Davoe (WA) - Wednesday, Jan 19, 2005 at 17:26
Wednesday, Jan 19, 2005 at 17:26
Best way I found to clean out the condensor short of removing the radiator is to remove the panel that goes over the top of it (5 bolts) and we had a rod with 4 holes near the end that is used to blow out crap from back to front with either air or water. In the bush I clean crap from the rront using a brush first removing the grill and horns (hzj78). I have used the techniques you mention on both my vehicles. one of them it worked on one it didnt. The onlything I will add is it is usually worth taking your radiator to a specialist and getting it rodded if you have gone to the trouble of removing it.This will conclusivly remove it as a potentiol problem and is reasnably cheap
AnswerID:
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Reply By: Member - Jeff M (WA) - Wednesday, Jan 19, 2005 at 17:54
Wednesday, Jan 19, 2005 at 17:54
Yeah the other day I was doing some work in the garage and had the air compressor running, popped the bonnet and stuck the nozzle behind the shroud. It was amazing the amount of dust and bird feathers that came flying out!! And that was without removing anything. Probally worth doing that anyway, even if you don't have problems currently. I know I'll be doing it as part of my regular servicing now. I also agree with the clutch fan part as that soved my overheating problems.
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Reply By: bundyman - Thursday, Jan 20, 2005 at 11:16
Thursday, Jan 20, 2005 at 11:16
Dodger,
I had an overheating problem with my work 2.8L Patrol on 40 deg days and right foot planted. Took it to a local bloke and he drilled a few holes in the thermostat to allow more flow. Yes it takes probably an extra 5 minutes to warm up from cold - but it hasn't overheated and we've been getting days
well into the 40's now. Simple cheap fix. Certainly won't solve the problem if the radiator core is full of gunk but if you've done all else to no avail then its worth a try.
Cheers,
Hughesy
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Follow Up By: Member -Dodger - Thursday, Jan 20, 2005 at 17:55
Thursday, Jan 20, 2005 at 17:55
If the danged thing still heats up after all this work I will try your Fix.
At the moment it is fairly cool only 30d cels so will have to wait for another 40deg day to really give it a workout.
Thanks Guys.
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