installing oil pressure gauge help - Toyota Nation Forum : Toyota Car and Truck Forums

atobe · 04-30-2006, 04:44 PM

i did search. so i know that i need to convert the 1/8' BSTP to 1/8 NTP.. any idea where to get the BSTP i went to homedepot can't seem to find it. all they have is NTP ones.. and i would like to use the stock one too so i know i have to T it off... how would i go around doing that? and where is the oil pressure on the car..

http://www.powertraincontrolsolution...c1a6f2e6bbcf0c

may be i can use this? and not T it off to the stock one ?

88 LE · 05-01-2006, 01:46 AM

Its BSPT (british standard pipe thread) and NPT (national pipe thread).

If you want a T, you need one with 1/8" male BSPT, 1/8" female BSPT, and 1/8" female NPT.

1. Male bspt end will screw into the cylinder head.

2. Female bspt end is where the stock oil pressure switch screws in.

3. Female npt end is where the sender/sensor from the oil pressure gauge screws in.

The adapter you listed will work. Although you'd lose the stock oil pressure switch.

On a 3S-FE the oil pressure switch is on upper right corner of the cylinder head.

^ The oil pressure switch does not look like that. I have a AN fitting screwed into the hole.

hyo · 05-01-2006, 05:27 AM

hi, on my camry, the v6 version, i actually was gonna t it off also, but then all the shops in my area didnt have the right t. so i just didint t it off, and it works fine, and the dummy light didnt turn on

atobe · 05-01-2006, 10:13 AM

thanks guys.... as long as it doesn't throw the CEL i'm fine with it...yeah i can't find any BSTP @ home depot

atobe · 05-01-2006, 10:15 AM

oh i forgot..... i've seen people put guages under the radio....i'm mostly talking to HYO...i have 2 2'(52mm) guages they seem like it won't fit under the radio

hyo · 05-01-2006, 03:01 PM

well mine fit really perfectly. like no gaps at all. but i made sure that my radio can flip down or what not. if you look in the thread i posted before, i had to cut into the trim, to make the gauges sit down more.
http://www.toyotanation.com/forum/t122883.html

atobe · 05-01-2006, 10:05 PM

ahh i c cut into the trim... guess i have to get another at the junk yard and mess with it.. thanks

88 LE · 05-02-2006, 04:08 AM

Quote:

Originally Posted by atobe

thanks guys.... as long as it doesn't throw the CEL i'm fine with it...yeah i can't find any BSTP @ home depot

It shouldn't throw the CEL, but the oil pressure light will be on.

Home Depot does not sell BSPT fittings. All they have is NPT.

Try checking with a place that sells AN fittings or a place that sells hydraulic stuff (hoses, fittings, etc..)

atobe · 05-05-2006, 01:10 AM

Do you think these parts will do?

1) Stainless steel 1/8npt (F) to 1/8bspt (M) pn: 4092k11
2) stainless steel 1/8bspt (F) to 1/8npt (M) pn: 4092k26
3) Aluminium tee 1/8npt (F) pn: 4705k333

Do you think i need anything else?

why didn't i think of mcmaster.com earlier? they have pretty much EVERYTHING

hyo · 05-05-2006, 02:29 AM

you know i actually have a t adapter, and fittings to pretty much do it, cause i got it for my car, but then i just tried the oil sender and it was ok, if you want i can pretty much just give them to you.

88 LE · 05-05-2006, 05:26 AM

Quote:

Originally Posted by atobe

Do you think these parts will do?

1) Stainless steel 1/8npt (F) to 1/8bspt (M) pn: 4092k11
2) stainless steel 1/8bspt (F) to 1/8npt (M) pn: 4092k26
3) Aluminium tee 1/8npt (F) pn: 4705k333

Won't work. The aluminum T you picked is female. So the NPT end on the 2 other fittings need to be male.

From cylinder head to T:

brass 1/8" NPT male to 1/8" BSPT male (4860K611)

Female T:

brass 1/8" NPT female (50785K75)

From oil pressure switch to T:

stainless steel 1/8" NPT male to 1/8" BSPT female (4092K26)

The sender/sensor that comes with the gauge will just screw into the T since its 1/8" NPT male.

atobe · 05-05-2006, 11:14 AM

ahhhh thanks 88LE.... aren't you in aussie HYO ?

hyo · 05-05-2006, 08:36 PM

i have a t and this adapter thing, thats like two male fittings? iono if that makes sense.

norcal man :P

atobe · 05-06-2006, 10:20 PM

oh i c.. always thought you were aussie... guess i'll be going to mc master on monday 30$ worth of fittings thanks 88LE had to draw a picture to make sense of things and your parts worked mine didn't

88 LE · 05-08-2006, 10:35 AM

Quote:

Originally Posted by atobe

thanks 88LE had to draw a picture to make sense of things and your parts worked mine didn't

No prob.

Where you went wrong, was with this fitting: Stainless steel 1/8npt (F) to 1/8bspt (M) pn: 4092k11

The BSPT end on that works out, it screws in the cylinder head. However the NPT end is female, so it won't screw into the T which is also female.

You can't screw 2 female threads together (no pun intended).

This fitting is not really necessary: stainless steel 1/8" NPT male to 1/8" BSPT female (4092K26).

1/8" NPT and 1/8" BSPT are really close. One has 27 threads per inch and the other has 28 threads per inch.

So you could wrap teflon tape around the threads on the oil pressure switch and screw it into the T.

Its better to use that fitting as the threads match up exactly, but its up to you.

I can't believe how much that fitting costs though. The price is just as bad as AN fittings and hose ends.