Mudski GU Build Thread

[mudski]

The Patrol is now up on blocks…


Rear tail shaft out, front will be out tomorrow, tie rod off, drag link off and the sway bar links removed.

It seems everything I touch needs to be replaced.


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[jay see]

So it's going to handle as good as it looks once you're done with it...

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[mudski]

So it's going to handle as good as it looks once you're done with it...

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Yeah it is due for new shocks soon I reckon but I’ll have to save a bit for them.


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[mudski]

Hmm.
Front tail shaft has seen better days. The uni’s feel fine, considering they have never been changed, but the slip joint has a lot of play in it. Plus the grease boot is non existent.



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[mudski]

Swapped out the steel water return line for the turbo to silicone hose with a thermal shield.
The steel line was running within millimeters of the exhaust manifold therefore pumping screaming hot water back into the stat housing.
So the new line is rerouted away from the exhaust manifold.




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[mudski]

I’ve also changed the radiator cap from a .8 bar cap to a 1.1 bar cap.
Reason behind this is these TD’s like to run a wee bit warm. Having a higher pressure in the cooling system raises the boiling point so we’ll see how it goes.

Last trip was good, sat mostly on 90-95c, but I was travelling in convoy with my daughter who was towing a horse float, so we were only doing around 90kph.
On the way home however, I was sitting between 100-120kph and the water temps sat at 105-110c. That was at 40plus degree outside temps.
Still under factory spec and I know even at 110c the water won’t be at boiling point due to being pressurised. 118c is boiling point but I want to give the TD a bit more wiggle room with the temps.



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[Brissieboy]

<snip> Having a higher pressure in the cooling system lowers the boiling point so we’ll see how it goes. <snip>

Higher pressure RAISES the boiling point.

[mudski]

Higher pressure RAISES the boiling point.

Yep, had a brain fart moment. RAISES is what i actually meant....

[mudski]

So I decided to dump the Propylene glycol coolant I put in and go back to ethylene glycol.

I did the usual remove the bung from the radiator flush it out, I also took the heater hose off the fitting on top of the engine and flush through there as well.

Whilst flushing it out coolant was coming out of the stat housing port where the heater hose connects to and was pouring onto the alternator before dropping to the ground.

Thought nothing of it, when I was done I hosed the entire area out.

I then noticed to what I thought it was smoke coming from the alternator. I could hear a faint sizzling sound also. The smoke had no odour apart from the slightest smell of coolant, but that could have been remnants of the washed off coolant. The smoke to me actually looked like vapour though.

Not sure on what was going on I disconnected the battery and all was good. Reconnecting the battery it came back.

So I started the Patrol up and ran it for a good ten minutes. As usual, upon start up for the first few minutes the alternator charged at 12v, then it kicks in and charges per normal, not sure why but it’s always done this.
I turned off the motor and all is good. No sizzling sound, no smoke/ vapour.
My thought is maybe a chemical reaction from the coolant and components inside the alternator???? But when 12v is cut off nothing happened. So maybe not.
If I knew how to upload a video on YouTube I would but tried to work that out and my head just hurt. lol

Any suggestions on what had just happened? More so. Why?

Cheers


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[TPC]

Coolant is very bad for anything electrical, I would pull the alternator out and give it a thorough clean, hit it with pressure cleaner.