Coolant Drain Plug on the Engine

Engines and Engine Systems
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sledge101
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Coolant Drain Plug on the Engine

Post by sledge101 »

Hi

Does anyone know where the coolant drain plug is on the TD42 engine?

Wanted to replace the coolant on my Patrol over the weekend. According to the workshop manual there is a drain plug on the radiator and one on the engine. I found the one on the radiator but couldn't locate it on the engine. Apparently it is close/beneath the exhaust manifold.

Thank you
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Re: Coolant Drain Plug on the Engine

Post by Herrie »

This is what the manual shows:
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TD42Cooling.jpg
TD42Cooling.jpg (30.45 KiB) Viewed 8160 times
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Re: Coolant Drain Plug on the Engine

Post by sledge101 »

Thank you Herrie, I'll try and locate it on the engine.
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Re: Coolant Drain Plug on the Engine

Post by ChristoSlang »

I changed my truck's coolant a week or two back. I initially looked for that plug but could not find it. I guess the bull-bar obscured access to it?

Then I went for plan B: placed a HUGE bucket under the radiator, removed one side of the return hose from the radiator (LH-side bottom) and stood back in awe as the old coolant came rushing out! According to the manual my Y61 takes about 10 liters of coolant, and that's what I had to put back to fill it up. So I guess not much stayed behind in the bottom of the radiator ot the motor itself?

My truck may have a larger radiator (I've never seen another 4.2 diesel to compare it with), so there may have been a little bit of old coolant left behind. But it's still a lot better than not changing it it all :thumbup:

Oh, and I also ran it for about 100kms with radiator flush added before the change just to make me feel like I didn't skimp on anything...
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Re: Coolant Drain Plug on the Engine

Post by tour de frans »

Hy sit links van die enjin langs die blok by die ratkas,soos Herrie se prentjie. n 12 Socket met kort extension en ratchit sal die job doen.Jy sal van die kant onder moet in klim om by te kom en dan gaan jy te stadig wees en nat word wanneer die plug uit is :lol: Doen dit wanner die water koud is
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Re: Coolant Drain Plug on the Engine

Post by sledge101 »

Thank you for the warning! I read that anti-freeze, brake fluid and petrol are carcinogenic - It causes cancer after prolonged exposure... :oldtimer:
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Re: Coolant Drain Plug on the Engine

Post by sledge101 »

Hi Guys

Everything went off like a dream, it made life a lot easier knowing where to actually look. A few things became apparent after I drained all the coolant.

1. There is no thermostat currently installed. I will try and find one as I feel that it would be better to have this in the system.
2. Patrols are very easy to service! :thumbup:
3. I was lucky (tall) enough to be able to unscrew the plug from above, therefore I didnot get wet!

Thank you for all the good advice!
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Re: Coolant Drain Plug on the Engine

Post by SJC »

Sit tb42 se drain plug op selfde plek as td42 sin?
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Re: Coolant Drain Plug on the Engine

Post by SJC »

Het hom gekry:
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1996 Nissan Patrol 4.2 SGL
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Re: Coolant Drain Plug on the Engine

Post by sledge101 »

:biggrin:

Nou net ‘n herinnering gekry van hoe maklik dit was om die Patrol te diens!
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