My Oil Pressure/Water Temp setup

jimjet · Mar 26, 2006

I did my homework and asked alot of questions on this board before finaly up grading from stock information system (idiot lights and oem temp gauge that never went above half)to AutoMeter Gauges

i used electric as i wanted reliability from capilary tubing wich could crack and leak.

the temp gauge was easy.
sender went into same hole in manifold near thermostat as original.
it was same thread and everything.just had to run the sender signal wire and ground .(as close to possible as sender.)
i picked up a hot lead from the fuse box.

jimjet · Mar 26, 2006

i mounted the oil press sender remotely to the fire wall as ther was no room down below and i did not want a sender sticking out to get snagged by a branch or something off road.

the hose is free floating for engine flex ,its clampless hose with 3/8 npt on one end and AN flared on other end , where it goes int SAE o-ring fitting on block.
i used a brass threeway fitting for sender on top , and press switch on side.
the press switch is required as i learned on this board.it signals ecu for running conditions.i had to extend the wire for the switch from down under block to remote switch.

jim

jimjet · Mar 26, 2006

another

jimjet · Mar 26, 2006

SAE o-ring into block (this is the correct fitting to use)
AN flare to clampless hose up to sender manifold.

jim

jimjet · Mar 26, 2006

heres the pic
jim

barefoot · Mar 26, 2006

nice work jim! i wonder if you could just replace the factory temp sensor and still use the factory guage. im not really a big fan of the muscle car looking guages but would like a more accurate reading!

jimjet · Mar 26, 2006

barefoot said:
nice work jim! i wonder if you could just replace the factory temp sensor and still use the factory guage. im not really a big fan of the muscle car looking guages but would like a more accurate reading!

thanks it took a while to finaly getting it all together to do it right.

i have seen kits that replace the in dash gauge and sender together.

the oem stuff is garbage.

jim

robertf · Jan 19, 2007

came accross this thread in a search.....

Jim I think you might be using the wrong fitting. I believe the rover uses a british straight pipe thread. It has 19 teeth per inch and the fittings you used are 20 tpi. Close enough that with aluminum on aluminum you'd never know the difference, however a 1/4" NPT is also off by 1 tpi (18) so the only benefit to using the SAE fitting over the NPT is the parallel threads.

I've found a bunch of BSP fittings through swagelok that I am going to order and try out when I move the sending unit for my aftermarket gauge. The sending unit was mounted in the cooling lines and I don't think its reading the true pressure.

http://www.swagelok.com/search/find_partnumbers_results.aspx?RPR=90&PS=4RP&PG=0

jmoore · Jan 20, 2007

interesting! I would love to install an aux oil pressure guage. As critical as oil pressure is to an engine, it seems stupid to rely on an idiot light.

mkronmal · Apr 17, 2007

So, what size is the oil pressure port? 1/4" BSP, 1/8" BSP (my best guess)?

robertf · Apr 17, 2007

they are 1/4" BTP or ISO 7 .

mkronmal · Apr 17, 2007

Crap. is that BSPT or BSPP?

robertf · Apr 18, 2007

taper, not parallel

Chris-St Louis · Apr 18, 2007

jmoore said:
interesting! I would love to install an aux oil pressure guage. As critical as oil pressure is to an engine, it seems stupid to rely on an idiot light.

The trend to lights is silly, but I can see why.

When you have a actual Guage, a measurement, there are people that want a replacement engine because they see there readings w end of spec.

In fact, Ford has "Guages" but they are simply On-Off switches... If the car has pressure, the gauge goes to middle.

ptschram · Apr 18, 2007

robertf said:
taper, not parallel

Wrong. They are parallel pipe fittings and every fitting supplier worth their pipe dope has adapter fittings to go from BPP to NPT. The size is 1/8" BPPM.

mkronmal · Apr 18, 2007

ptschram said:
The size is 1/8" BPPM.

Grrr. PT, have you actually measured one? I've got 2 opinions here and trying to get to the truth without pulling the darn sender until I have to. Yes, I'm being lazy, but this should be fairly common knowledge out there.

Thanks!

P.S. Happen to know the size for the fan switch in the water elbow?

jimjet · Apr 18, 2007

Chris-St Louis said:
In fact, Ford has "Guages" but they are simply On-Off switches... If the car has pressure, the gauge goes to middle.

So
is this what my 04 has.
Because
Im back to square one.The photos above are my 98.

My 04 goes 1/2 way as did the 98 and the reason i went to gauges.
every time i see that temp gauge in the middle im ready to go gauges.
im just not ready to screw into my new dashboard.

jim

Chris-St Louis · Apr 18, 2007

04 Discovery? Do they have factory Gauges?

I meant FOrd Products liek Mustang,Powerstroke,etc.

jimjet · Apr 18, 2007

When i did the mod on the 98 i bought a new sender (L.R.) and had it all matched up at Moreland hose and belting.we deal with them for or Aviation needs.

he measured the threads and size with a thread gauge and came up with SAE O-Ring.

jim

jimjet · Apr 18, 2007

Chris-St Louis said:
04 Discovery? Do they have factory Gauges?

I meant FOrd Products liek Mustang,Powerstroke,etc.

yes chris its the same dash on the 04 as the 98 other than all the amigo lights.

The gauge never goes above 1/2 like the 98 and i hate this.

other than trying to overheat it (cardboard in radiator) i dont know if it works.

The 98 did not work.

jim

My Oil Pressure/Water Temp setup

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