best spot to tee in an oil pressure gauge

[92EcoDiesel Jetta]

At the oil filter, the needle moves almost instantaneously after engine starts. At the cyl head, there's approx a 1/2 second delay.

[92EcoDiesel Jetta]

I calibrated my cheapo oil pressure gauge to a Mercedes 300D oil pressure gauge. My gauge was reading low. I calibrated it by twisting the Bourdon tube a little by reaching in the light bulb hole with long nose pliers. After calibration, at idle I am now reading 20 psi and at 60 in 5th I am reading 35 psi. I am going to plumb in the Mercedes oil pressure gauge temporarily to double check that I calibrated the cheapo gauge "good enough".

[Rabbit on Roids]

35psi is way way low oil pressure for cruising. what kinda oil u running?

[92EcoDiesel Jetta]

If I get the rpm up, say 3rd gear at 55 mph I can get the oil pressure up to 60 psi, In 5th at 60 it's betwwen 30 to 35 psi.

[Rabbit on Roids]

35 psi at 3500 rpms for a hyd turbo motor is just fine.

oh yea!
i totally forgot that his engine is a hydro lift engine. i forgot those things have weak oil pressure.

[zukgod1]

10 psi pr 1000 rpm is a very good rule to live by.

[92EcoDiesel Jetta]

I ended up using all 1/8 NPT, a 1/8 NPT hydraulic steel nipple for strength into the head and a 1/8 NPT brass Tee. So far so good- no leaks. I think the parts are sufficiently strong to not have any problems down the road but I'll still keep an eye on it..

[Vincent Waldon]

Hmmm... does your oil light still come on when you first turn the key to "on"?!

[92EcoDiesel Jetta]

Yes it does. Why do you ask?

[Vincent Waldon]

Lots of folks run into sensor grounding problems when they use Teflon tape to seal the oil pressure fittings... sounds like you're OK.

[92EcoDiesel Jetta]

Lots of folks run into sensor grounding problems when they use Teflon tape to seal the oil pressure fittings... sounds like you're OK.

I didn't cover the first 2 threads on the fitting with the Teflon tape, that insured electrical conductivity as well as keeping the Teflon tape out of the oil.

[92-Eco]

I hooked a mechanical gauge up to my head port just to see what it was reading and i had 60psi upon cold start up. Once it ran for a while it dropped to 30psi and would act like a tach and go up and down with the rpms. Ive never seen an oil pressure gauge fluctuate like this but i guess it dosent matter as long as i have pressure.