1962-1965 Datsun L320 and NL320 forums - The truck that started it all in the US. All 320-specific topics and discussion can be found here.
Posts: 11
Joined: Mon Jan 13, 2014 9:02 pm
Car: 1965 nl320
1964 l320
Location: lebanon oregon


Postby charliej13 » Tue Nov 11, 2014 12:40 pm

Is opening the petcock behind the distributor and draining coolant there enough to be safe ? or is there another place to drain engine?

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Li'l Truckie
Posts: 554
Joined: Thu Jan 02, 2014 9:28 am
Car: 3 x '65 PL 320
1 x '64 PL 320
1 x '63 PL 320
1 x '62 PL 320 - parts :(
1 x '60 PLG-222
and many more Datsuns from 48hp to over 500hp
Location: Leavenworth, KS


Postby Li'l Truckie » Sat Nov 15, 2014 7:18 am


If you are draining the complete system then use the drain under the radiator on the right side. If only the draining the block then yes the drain right rear of the block will do - you will also drain the radiator down halfway down as the coolant levels out. Just a heads up that this drain is usually clog with rust particles from the block. It will still make quite a mess as you turn the valve the stream of coolant will go every which way and trying to catch the coolant in a pan or bucket is somewhat futile with everything in the way.


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