Overheating Troopie

Submitted: Sunday, Jul 03, 2005 at 16:52

ThreadID: 24393 Views:2428 Replies:7 FollowUps:12

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Member - Peter J (VIC)

I have a problem with an overheating troopy. It's a 95 diesel with a 1HZ, 150,000 kays and just serviced. Even on mild days, towing my camper (1100kgs) up a steep hill (second gear high range), the temp dramatically rises. I stop for a minute and the temp falls. It gets worse, the more load I put on the motor.

I have been told the clutch fan may be to blame. There is fair resistance when I turn it by hand, but if I open the bonnet when the engine is really hot, the fan doesn't seem to be pushing out much air at all.

Assuming it was the clutch fan, I bought a vial of the toyota silicone oil. Problem is, I cant figure out how to get the oil into the viscous coupling.

I have checked the spring at the front of the viscous coupling, by applying heat. It turns a 1/4 turn and reverses when water is applied. Can I assume this is okay ?

In summary - 1. How do replace the silicone oil, 2. Is it worth replacing the whole fan (big $$), 3. Should I also replace the thermostat, just in case ? 4. Will my wife ever talk to me again, if the Troopy overheats 1/2 way up Cape York?

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Reply By: Horacehighroller - Sunday, Jul 03, 2005 at 17:58

Reply By: howesy - Sunday, Jul 03, 2005 at 18:23

Reply By: The Rambler( W.A.) - Sunday, Jul 03, 2005 at 19:43

Reply By: Member - Roachie (SA) - Sunday, Jul 03, 2005 at 20:04

Sunday, Jul 03, 2005 at 20:04

Peter,
I agree with what the others have said....However, I would also add that IMHO the amount of resistence you can feel when turning the fan by hand has no real bearing on whether the fan clutch is okay or not.
The other thing I found with the Nissan clutch, was that the large rubber "O" ring is made of some sort of 'funny' rubber.....once mine was exposed to the atmosphere, it extended by about 1" and was nigh-on impossible to refit.
Good luck
Roachie

AnswerID: 118666

Follow Up By: Member - Roachie (SA) - Sunday, Jul 03, 2005 at 20:08

Sunday, Jul 03, 2005 at 20:08

Forgot to add.........have you had the radiator out to ensure it's not gunked-up with insects or grass seeds? Also, if/when you take it out, get the whole thing flushed out. I've had these issues with my GU and still don't think I've fully solved them; it still runs very warm when i give it a bit of stick. I've spent thousands $$$$ on it and nothing seems to have worked so far. I'm now down to rate of coolant flow as a possible cause.....might end up fitting an extra water pump (electric) to boost flow when pushing hard....have already fitted a huge aluminium radiator and the existing Nissan pump might not be powerful enough to move the extra liquid.

FollowupID: 373831

Follow Up By: Member - Davoe (Widgiemooltha) - Sunday, Jul 03, 2005 at 21:14

Sunday, Jul 03, 2005 at 21:14

heard about the o rings but after doing 2 I think it may be a nissan thing as I had no worries

FollowupID: 373851

Follow Up By: trendy - Monday, Jul 04, 2005 at 23:16

Monday, Jul 04, 2005 at 23:16

Roachie,

Not trying to brag but the issue with my overheating is all but a non issue at this stage. 20 000 km since MTQ played with it and the worst I've got is 108 -110 c. Thats pushing really hard, but I will still wait to summer for the final word. Also I am not able to see you all in Birdsville due to work commitments, was trying so hard to get out there. Will have to catch up with you on another trip.

Didn't mean to hijack the post, sorry.

Regards Trevor.