Question on TD42 'kettle' issue

Engines and Engine Systems
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Question on TD42 'kettle' issue

Post by graham1 »

Howzit,

So we know the td42 is occasionally referred to as the kettle as apparently its known to overheat?
I havent actually come across many complaints of this here in SA though.

But anyway, what is the cause of the motor overheating? Im assuming its when it is put under load rather than something like idling or stop start traffic?

The reason I ask is I will be using my td42 as a daily every now and then and the last thing I want to be stressing about is the motor wanting to overheat in stop start traffic (ive had this stress with a vehicle before, and it sucks), I cant imagine a diesel wanting to do that though hey?
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Re: Question on TD42 'kettle' issue

Post by offroadbiker »

Towing
Loooong inclines
Driving like Tinus

The rest is fine, mine has gone up by 3-4 degrees in standstill traffic.
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Re: Question on TD42 'kettle' issue

Post by martyn »

Driving like Tinus :rolling: :rolling: :bravo: :lol:
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ricster
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Re: Question on TD42 'kettle' issue

Post by ricster »

:rolling: :rolling: :rolling: :rolling: .... shame Tinus... are they picking on you...... :rolling: :rolling:

But on a serious note, in my opinion the standard radiator will handle whatever you throw at it, but as soon as one starts doing modifications (bigger tyres, raised suspension, turbo, and even as far as fitting aftermarket bashplates that interrupt the air path around and through the radiator) there is a degree of extra strain that you put on the radiator to keep the motor cool. Now having said that, I think the standard radiator will still handle this in its stride, however keeping the radiator clean from grass seeds and crap that build up in the little fins of the radiator ( both aircon condenser radiator and the water radiator will have a HUGE impact on efficiency. Having a front mount IC will also add an extra restriction to the airflow, so major point to watch for is external cleanliness of the radiators. Maybe when you do the internals in the next paragraph, whip out the radiator and send it in for a good clean by a specialist ( I use Silvertons in Alberton - Thys, awesome service from him)

Now for the internals. Antifreeze/coolant is as important as keeping the externals clean. use an expensive (preferably Nissan OEM) coolant/antifreeze). Don't use cheap stuff !!!! Change it every 3-4-5 years ( I have no clue how often you should change it. I changed mine after 100 000km and it still looked like new, but not worth the risk, so splashed out and bought 6L and did the change. I replaced my waterpump a year or so back, My old one of 250 000km still looked perfect inside ( no orange colour at all and no corrosion from the coolant eating the metal away, hence why I say don't buy cheap antifreeze!!!!

Check with the bashplate you may have fitted that it deflects enough air so as to hold a negative pressure inside the engine bay. I have a Peter Connan bashplate and had to remove the plastic deflector that was just below the radiator when i fitted it, BUT i have never had any issue with the air deflection on mine. I have no idea why, but it just is like that. Maybe I fitted mine differently I really have no idea. I also have a HUGE aftermarket radiator fitted in my Iron Maiden from the previous owner. Peters bashplated are fantastic and serve a great function and I wouldn't change mine for the world. If it isn't creating enough negative pressure in the engine bay, block off the holes or slots in the bashplate and see if it make a difference. (this has been discussed a few times on the forum).

I believe with these three things in check you will have no hassles with overheating.
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Re: Question on TD42 'kettle' issue

Post by ricster »

Oh yes, and I use mine as a daily drive too... :biggrin: :biggrin: ... taxi's LOVE me !!!
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Re: Question on TD42 'kettle' issue

Post by Alex Roux »

martyn wrote: 04 Feb 2020 14:06 Driving like Tinus :rolling: :rolling: :bravo: :lol:
Driving like Tinus can overheat anything...
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Re: Question on TD42 'kettle' issue

Post by Peter Connan »

Motor and cooling system (at least in the Y60) were designed for an NA motor.

Now we go and add a turbo, and tune it up a bit, and suddenly we are getting nearly double the power. Obviously, that has a commensurate increase in heat load that needs to be dissipated by the cooling system, but also it's only a problem when you are actually using that extrw power.

The Y61's are not nearly as bad, but the same principle applies.

Assuming everything is healthy, you won't have issues tootling around in traffic. The issues will come when you are working it hard on a hot day.
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Re: Question on TD42 'kettle' issue

Post by Tinus lotz »

:imsorry: i drive mooi man :surprised: :surprised: :surprised:
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Re: Question on TD42 'kettle' issue

Post by Dungbeetle »

graham1 wrote: 04 Feb 2020 10:14 Howzit,

So we know the td42 is occasionally referred to as the kettle as apparently its known to overheat?
I havent actually come across many complaints of this here in SA though.

But anyway, what is the cause of the motor overheating? Im assuming its when it is put under load rather than something like idling or stop start traffic?

The reason I ask is I will be using my td42 as a daily every now and then and the last thing I want to be stressing about is the motor wanting to overheat in stop start traffic (ive had this stress with a vehicle before, and it sucks), I cant imagine a diesel wanting to do that though hey?
In almost 900 000 km with my TD42 I have had overheating problems at a stage - fiddled with thermostats, fans, viscous couplings, cowling, etc etc until I replaced the radiator with an OEM from Nissan about R300 000 km ago - no issues whatsoever since then.
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graham1
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Re: Question on TD42 'kettle' issue

Post by graham1 »

Ok lekker, thanks guys!
Cedric, you're right on the internal part, I better get that portion serviced.

I still have the standard bumper which I think I'll keep on it for the foreseeable future, so Im sure that will help with the airflow too.
The intercooler thats going to be fitted will be a bit of an obstruction I guess, but, I have no plans of driving like Tinus :oldtimer:

As long as it will be good in stop start traffic, I'll be happy!
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