80 Series Losing some water

Submitted: Tuesday, Aug 03, 2004 at 20:14
ThreadID: 15268 Views:2163 Replies:5 FollowUps:7
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G'day Folkes,
Need some help, has anybody experienced water loss from their 80 diesel.
I have had it pressure tested and to have had no leaks.However they did find a faulty thermostat.We had replaced that and now a few weeks later we seem to
be losing water again.sometimes up to 1-2 litres.It is a concern the cruiser has only done 220000 klms.it is just a pup.Any ideas than the possible cracked head
(hope not knock on wood- compter desk)let me know.
Thanks Again.
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Reply By: Member - Cookster(VIC) - Tuesday, Aug 03, 2004 at 20:53

Tuesday, Aug 03, 2004 at 20:53
Don,

For how long did the pressure test go? I had a problem with my previous Patrol 2.8 diesel, loss of water with no obvious leak. With the pressure tester we put on a lot of pressure and left it sitting for a few hours. Somewhat 4 litres of water vanished and there was no puddle under the car. We gambled and started the engine – what a nice fountain that was. It was the head, it had a hairline fracture close to the exhaust manifold. All the water was running into the exhaust but luckily no damage to the motor. A couple of weeks later and after a few thousand dollars went up in smoke (new head) the beast was back on the road. I hope your problem will have an easier solution.

Cheers
AnswerID: 71142

Follow Up By: Member - Don (QLD) - Wednesday, Aug 04, 2004 at 09:08

Wednesday, Aug 04, 2004 at 09:08
Cookster
I hope my problems is more like captains and not yours haha.
No Offence.They had pressure tested it for a couple of hours and didn't
lose much water at all.oil was nice and black and it appears no water
from the exhaust.
Thanks
Don
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FollowupID: 331414

Follow Up By: GO_OFFROAD - Wednesday, Aug 04, 2004 at 09:46

Wednesday, Aug 04, 2004 at 09:46
Did they pressure test the radiator cap, as well as the system?

This would be the first thing to check.
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FollowupID: 331418

Follow Up By: Member - Don (QLD) - Wednesday, Aug 04, 2004 at 13:16

Wednesday, Aug 04, 2004 at 13:16
As far as i am aware they only did the radiator cap.
I am not about the system.How do they pressure test
the system?
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FollowupID: 331461

Follow Up By: GO_OFFROAD - Wednesday, Aug 04, 2004 at 13:20

Wednesday, Aug 04, 2004 at 13:20
do you mean they tested the cap?

As your post says they tested the system, not the cap, but thye may of tested the system from where the cap is located.
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FollowupID: 331463

Reply By: Member - Captain (WA) - Tuesday, Aug 03, 2004 at 21:19

Tuesday, Aug 03, 2004 at 21:19
Hi Don,

I had a similair problem with my 1HZ 80 series. It turned out to be a hole on the radiator core. It was behind the shroud and you could not see it. I kept loosing coolant over time with no obvious leak until on a trip up North it finally let go in a big way. A can of Bars leak was a temporary fix (for a month!) until I pulled the radiator out and had it repaired properly (simply sealed off one core and pressure tested ~$50).

Cheers

Captain
AnswerID: 71147

Follow Up By: Member - Don (QLD) - Wednesday, Aug 04, 2004 at 09:02

Wednesday, Aug 04, 2004 at 09:02
Captain,
According to my symptoms hopefully i will have the same problem.
Thanks
Don
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FollowupID: 331413

Reply By: Member - DOZER- Tuesday, Aug 03, 2004 at 21:58

Tuesday, Aug 03, 2004 at 21:58
Hi
Have a good look around for white residue from coolant. Places to look are around the rad, thermistat, water pump etc. Sometimes the pump seal leaks when cold, but not when hot. If u can feel or see residue from spray from the fan when cold, it is the pump, and what a joy they are to replace.....did the last one in the Tibaburra Caravan park....the cam cog, belt, and backing plate all has to come out....and go back in the right way!
A hydrocarbon test is probably your next port of call if u cant find the culpret.
Did the motor overheat badly with the thermistat problem??
Problem is (and ive seen it many times) that once u overheat things, everything starts to fail...water pump, rad, etc etc. The top and bottom tanks are sealed by orings, the water pump by carbon seal.
Andrew
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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AnswerID: 71153

Follow Up By: Member - Don (QLD) - Wednesday, Aug 04, 2004 at 09:00

Wednesday, Aug 04, 2004 at 09:00
Andrew,
when i did my last 4wd trip i noticed it was getting very hot
and overheated.i was towing a camper trailer as well.and it wasn't
a hot day at all.Since replacing the thermostat it doesn't seem to overheat anymore.i have checked the oil throught the dipstick
and it doesn't look milky at all.still nice and black.
Thanks for your response
Don
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FollowupID: 331412

Reply By: Member - DOZER- Wednesday, Aug 04, 2004 at 14:42

Wednesday, Aug 04, 2004 at 14:42
Thats good, check under the oil cap for gunge aswell...if there is water going in to the oil, it will show up there. Problem is if it got too hot, the combustion chamber may have cracked, and water might be displaced by compressed air, so getting a mechanic to screw a nice nifty cap on and start the motor is the next step.
Andrew
b4 you bag me out, walk a mile in my shoes, then your a mile away and have my shoes :)

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AnswerID: 71270

Reply By: Davoe - Monday, Aug 09, 2004 at 18:05

Monday, Aug 09, 2004 at 18:05
1-2 litres? coolant has a distinctive smell and if you cant smell that much or see it leaking you have a cracked head (speaking from all to recent experience) and you dont need water in your coolant or vice versa to make it so hope I am wrong
AnswerID: 71910

Follow Up By: Member - Don (QLD) - Monday, Aug 09, 2004 at 20:35

Monday, Aug 09, 2004 at 20:35
Davoe,
Can you tell me whether your oil was like a milky colour.
i was told that if you had a cracked head that there would be
water in with the oil.Thanks
Don
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FollowupID: 332094

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