Water temperature sender thread

Discuss (and cuss) the Nissan LD-series OHC Six diesel engine, popularly available in the US in 1981-83 Datsun/Nissan Maxima Sedans & Wagons.

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asdex
Posts: 33
Joined: 10 years ago
Location: Dunedin, New Zealand

Water temperature sender thread

#1

Post by asdex »

Hi would someone know what the water temperature sender thread is?
Also the oil pressure sender in the block would be handy. I have some gauges to install and would like to get any adapters if needed before I start.
Thanks,
asdex
rlaggren
Posts: 541
Joined: 14 years ago
Location: San Francisco

#2

Post by rlaggren »

Well, the standard reply is "it's in the FSM". Almost always worth the $25 or so to get one off ebay or the local version.

You have only the read-outs or do you have the senders also? You probably need the senders that go with the gauges and w/luck they're the same thread or smaller (which would take a bushing). I actually don't know if the FSM specs the thread of the senders, so if you have to know ahead of time you may need to visit a junk yard for a sample or wait until somebody else chimes in. Or you might try nissan's online parts catalog and see if you can cross reference your way into the specs.

Cheers, Rufus
82 Maxima wagon
davehoos
Posts: 525
Joined: 15 years ago
Location: Karuah Valley,NSW Australia
Contact:

#3

Post by davehoos »

If you can find someone with vdo catalog etc being south NZ someone will.
now if you look up online info remember that american 810 maxima LD28 wont be the same as a C32 laurel LD28 or a recent LD20II.

nissan changed water temp type in mid 80"s the old type had a tappered seat that the sender tightened up against,new one has a copper washer--intermediate age cars have a tappered thread.australian sorced modles may have flexdrive and VDO senders.

the good thing is oil pressure switches almost always have the same thread---its just the pressure to voltage thats different so a stadard dash can be used with different engines.
WCJR31 Skyline.3.0 manual.wagon
R31 SKYLINE/Passage GT/PINTARA
LPG Ford Falcon 99-06 93 Disco
Local Shire Southern Zone Mechanic.
davehoos
Posts: 525
Joined: 15 years ago
Location: Karuah Valley,NSW Australia
Contact:

#4

Post by davehoos »

large dia sednder was 16mmX 1.5
non genuine has spade terminals.

Image
and
Image

newer type is 12mmX 1.25.
WCJR31 Skyline.3.0 manual.wagon
R31 SKYLINE/Passage GT/PINTARA
LPG Ford Falcon 99-06 93 Disco
Local Shire Southern Zone Mechanic.
davehoos
Posts: 525
Joined: 15 years ago
Location: Karuah Valley,NSW Australia
Contact:

#5

Post by davehoos »

oil is 1/8 gas
WCJR31 Skyline.3.0 manual.wagon
R31 SKYLINE/Passage GT/PINTARA
LPG Ford Falcon 99-06 93 Disco
Local Shire Southern Zone Mechanic.
asdex
Posts: 33
Joined: 10 years ago
Location: Dunedin, New Zealand

Threads

#6

Post by asdex »

Thanks very much.
Cheers,
asdex
asdex
Posts: 33
Joined: 10 years ago
Location: Dunedin, New Zealand

#7

Post by asdex »

Taken the sender out and it's the newer type. It seems to work on the gauge although it goes to 40deg when I switch the ignition on. I'll try using it as I can't seem to find an adaptor.
Cheers.
nogrip
Posts: 46
Joined: 10 years ago
Location: hokitika, new zealand

#8

Post by nogrip »

did the gauges not come with the sensors???
ld28t in a 81 transit van
nogrip
Posts: 46
Joined: 10 years ago
Location: hokitika, new zealand

#9

Post by nogrip »

did the gauges not come with the sensors???
ld28t in a 81 transit van
asdex
Posts: 33
Joined: 10 years ago
Location: Dunedin, New Zealand

#10

Post by asdex »

Hi the gauges did come with senders but I need an adapter to adapter the smaller thread of the temperature sender to the larger threaded hole of the existing sensor.
I checked around town but no one has one and didn't offer to get one for me. One shop wanted to sell me a piece that fits into the radiator hose that will fit the new sensor. I'll try the old one as I'm doing and see how it goes. And if it's too inaccurate will look further into getting an adapter.
Cheers
nogrip
Posts: 46
Joined: 10 years ago
Location: hokitika, new zealand

#11

Post by nogrip »

ive got a heap of different fittings here....

collected from varous gauge kits ive fitted over the years..
ld28t in a 81 transit van
rlaggren
Posts: 541
Joined: 14 years ago
Location: San Francisco

#12

Post by rlaggren »

A "bushing" might do the job. A good hardware store should have a selection and if you're lucky you'll find the one.

This is water? or oil? Steel should work w/either but I'm not sure whether brass is OK w/oil. S/b cheap, buy an assortment and return what doesn't work. Might take the sender(s) so's to get at least one side correct right out of the box.

Rufus
82 Maxima wagon
davehoos
Posts: 525
Joined: 15 years ago
Location: Karuah Valley,NSW Australia
Contact:

#13

Post by davehoos »

normally you get a bung and drill/thred the needed hole.

16mm dia X1.5 pitch is common-14 mm are spark plugs.

sender are normally 12mm or 1/8 gas-these are common plumbing items.
often seen 2 brass items soldered together.
WCJR31 Skyline.3.0 manual.wagon
R31 SKYLINE/Passage GT/PINTARA
LPG Ford Falcon 99-06 93 Disco
Local Shire Southern Zone Mechanic.
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