Datsun 320 Cooling System Info and Part Numbers

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.
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Li'l Truckie
Posts: 555
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

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So I do not loose all of the information again, here is all you need to know about 320 cooling system. From the original looking water pump and hoses
Image

To what is available in after market parts
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Here is the info on the 90 degree angle hose
Hose - Radiator Upper
Part Number: NBH 7446
Product Line: NAPA Belts & Hoses
IMPORTANT INFO: @Cut to Length@

Here's the round/circular 90 degree hose. I like this one the best, but its also the most expensive of the top hoses
Hose - Radiator Upper
Part Number: NBH 7309
Product Line: NAPA Belts & Hoses

Only one I could find for the lower radiator hose -
Hose - Radiator Lower
Part Number: NBH 7543
Product Line: NAPA Belts & Hoses
IMPORTANT INFO: @Cut to Length@

Here's the link to page 125 of Victoria British's MGA cooling system for the lower radiator hose elbow. Your local hardware store may have something similar -
http://www.victoriabritish.com/icatalog ... x?Page=125
See part number 14-763. Other parts on this page also work, like the studs, thermostat gasket, thermostat blank, hoses and hose clamps.

Here's the info on the water pump -
Water Pump - Remfd
Part Number: WP 571198
Product Line: Remanufactured Water Pump
IMPORTANT INFO: w/o Fan Clutch

Here's the more expensive water pump
Water Pump - New
Part Number: TFW 42324
Product Line: Tru-Flow Water Pumps
IMPORTANT INFO: w/o Fan Clutch

Radiator cap and thermostat are just the regular type parts that vary depending on the pressure and temperature.

If something is missing let me know and I'll do some research,

Li'l Truckie


Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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Truckie,
Thanks for the info. Ordered the elbo from Moss. Same price as VB but saved on shipping.
Gemmer

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Li'l Truckie
Posts: 555
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

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Alright, sounds great!

I'll be heading down to VB later this week to return a few things and can check on any parts if you would like.

Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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Found this today http://jagsthatrun.com/Pages/Parts_TPI- ... -Tees.html What do you think?
Gemmer

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Li'l Truckie
Posts: 555
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

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I wonder if you could put one of these on the top radiator hose and run it to your heater? This would be more convenient than running a hose around the back side or over the front to the lower radiator hose.

I'll get of pic of my one '65 with the plug-in/electrical circulation pump as it comes off of the top radiator hose.

Oh, did not see prices?

v/r
Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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$26.00 shipping included.
Since I already ordered the MG part, I'll see how that is going to fit. That hose coming from the pump and going down to the lower radiator is in pretty cramped quarters, what with the front motor mount and steering gear. The reason (other than age) I have to replace the hose is due to wear from rubbing against these.
Gemmer

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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As far as feeding hot water from the upper hose, I think the flow through the heater wouldn't work efficiently because the outflow from the heater into the right side of the block would be at a slightly lower point. I could be over thinking this.
Gemmer

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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I think I may have too much time on my hands but found this today http://lbcunited.com/earlyford2/product ... 3d0354489e This looks almost exactly like the original T . Price in the same range as the others.

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Li'l Truckie
Posts: 555
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

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Wow! That sure does look like the original T for the lower radiator hose. Definitely have to save this link and parts information.
Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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Went to NAPA to get a fan belt. All they had was a belt that was either too short or too long. The back of their belts are too wide. Any suggestions?

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Li'l Truckie
Posts: 555
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

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Gemmer,

Give me 24hrs and I'll get you some part #s. I want to say 7830 or something close to this. Gates makes one and NAPA its in house brand. Pretty sure I have both.

Where is your generator support bar? Underneath the generator attached to the front engine plate or over the top attached to the thermostat housing?

Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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Truckie,
Thought I could count on you to come back with a solution. Thanks!!
Generator support bar is over the top attached to the thermostat housing.

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Li'l Truckie
Posts: 555
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

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ohh, did not know that and I do not have any that are over the top. Still should be the same measurements.

Did you by chance record the part number of the belts that did not work?

Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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I think the correct fan belt has to be 38 1/2". My old belt is 3/8" wide at the top and 1/4" wide at the bottom. Could not find any belts at NAPA with the width measurements. I may have to accept the wider belts.
The NAPA belt that was too short was # 4L380W.

User avatar
Li'l Truckie
Posts: 555
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

Post

Gemmer,

Here are 3 belt number for you -

CARQUEST (Gates) 7380 XL 11A0965
NAPA Premium XL 25-09403 / 7370
Unknown (John Deere??) 15380

v/r
Andy

Gemmer
Posts: 96
Joined: Mon Jan 27, 2014 5:38 pm
Car: 1964 Datsun PU 320
Location: Roseville,Ca

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For others following the fan belt size issue, apparently if your adjusting bracket goes under the generator belt size should be 38". If the bracket comes over the top, then a 38 1/2" belt works. Additionally, a belt that is 7/16" wide at the back works better than one that is 1/2" wide.

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AZhitman
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Truckie delivers. :)

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difrangia
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Joined: Fri Aug 30, 2013 10:01 am
Car: 1978 Datsun 620 'Longbed', 1964 NL320, 1961 FIAT 500D, 1964 Type 113 Beetle, 79 Ford Festiva
Location: Oklahoma

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Per 'Truckie's' info, I snagged these a couple years ago from NAPA and are working fine.

Steve

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Datsunbruce
Posts: 3
Joined: Mon Jul 29, 2019 2:56 pm
Car: ???

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Hi, I need a crankshaft pulley. Do you know of a british car that uses the same crankshaft pulley as a Datsun E1?

Ted Heaton
Posts: 41
Joined: Wed Aug 13, 2014 9:32 pm
Car: 64 Datsun 1500 Roadster
63 NL320 Sport truck

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Datsunbruce wrote:
Sat Aug 03, 2019 10:41 pm
Hi, I need a crankshaft pulley. Do you know of a british car that uses the same crankshaft pulley as a Datsun E1?
PM sent

Ted


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