sensor atachment?

[fax0815]

I´m going to fit my defi gauges soon, but I still need the sensor attachments.

Unfortunatly I cant´t be in my garage until then. That´s why I need your help. I´ve searched, but somehow noone asked before?

What´s the inner diameter of the radiator hose?

I was thinking about ditching the OEM sensor and fit the defi with adapter.
Defis run with 1/8PT, but whats the thread in my block?
I´ve read Toyota pressure senders have 1/8 BSP? is that true?

Anyones knows where to get this adapter?

Thanks

[TURBO-AE86]

radiator hose inner is bout 30 mm

[fax0815]

Thanks for the answer.
Already ordered the right adapter for it.

Anyone knows the thread of Toyota oil pressure sensors?

[fkn16v]

1/8th NPT is for the oil pressure sensor i think, but don't quote me im not 100% sure, same as the water sensor.

[fax0815]

I´ve read that Toyota pressure sensors come with 1/8 BSP a few times, that´s why I ordered an adaptor to see if its true.

Next question, I also got a defi tacho with my gauges, so I need a rpm signal. I was going to connect it to the wire going from the ignitor to the tacho?
Or should I use either IGN or IGF?

Can anybody help?

[fax0815]

Things got pretty difficult!

The defi pressure sensor seems to be a 1/8BSPT and therefore bolts straight to the block!

But this is not confirmed, yet.

Anyone got a clue for the tacho wiring?

[Ivan141]

Look up the DEFI manual for that tacho to find out what type of signal it needs.
Coil(-) usually does the trick, but if it's not built to handle that, you are likely to blow up the electronics.

[fax0815]

It turned out to be a rare defi oil pressure sender with 1/8" BSP and bolt perfectly to the block. No adaptors required!

But for the tacho wiring, they recomend the tacometer signal and I think that the one of the wires comming from the ignitor (yellow from memory).

I´ll try that and hope is doesn´t get fu****

[Project D]

Actually the Japanese standard PT (Pipe Taper) is the same to BSPT (British Standard Pipe Taper) :wink:
http://mdmetric.com/tech/thddat7.htm#pt

So yes the sensor can be bolt straight up to the block

Usually the most recurrent problem is when you want to fit defi sensor in sandwich plate (most have 1/8 NPT thread)
or
any 1/8 NPT sensor in Japanese plate (like Grex)

[fax0815]

There we go, couldn´t find any info on a japanese standard PT.

All the other defi senders are 1/8"NPT, only the oil press senders were also avaliable in BSPT.
I just assumed the´re all NPT, thats why I struggeled an bought adaptors, that are now totally useless...

The Greddy adaptor plate that came with my gauges has a BSPT port, but I´m not sure if its genuine.