Oil Pressure Lines

[Boosted_162]

Hey,
Been offered some Autometer Ultralite gauges, and one of them is a mechanical oil pressure. Wanting to put in my MR2, but kinda uneasy with the oil lines running through the cabin.

Firstly, does anyone know if i can get a new line made up out of braided hose or something similar? I imagine the standard line wont be long enough anyway.

And what are the rules regarding oil lines in the cabin for WOF and/or motorsport?

Oh and one other kinda random question, does having a long hose on a mechanical boost gauge affect the reading?

Cheers

[Bazda]

I can get you the braided teflon inner line for the oil pressure gauge.
Its what I run and never had a single leak as they are the aeroquip fittings.

[Quirky]

Oh and one other kinda random question, does having a long hose on a mechanical boost gauge affect the reading?

Cheers

Nope.
Set my car to data log and the gauge matches the vacuum reading on the Adaptronic ECU, and Ive got about 2 meters total hosing that's tied in a bundle under the dash.

[frost]

ive had that question in my head for ages, seeing as air can compress if there was air in the line would it affect it? as i dont think you need to bleed your oil line do you? not sure as ive always used electric gauges

[Elmendorf]

I can get you the braided teflon inner line for the oil pressure gauge.
Its what I run and never had a single leak as they are the aeroquip fittings.

You're lucky, the one I got for my turbo leaked like a sieve and caught fire. Cost over $100 to get as well.

[Akane]

Come on mate, this is now how we SW20 owners roll. Get yourself a nice electronic unit from a Japanese maker!

[Bazda]

I can get you the braided teflon inner line for the oil pressure gauge.
Its what I run and never had a single leak as they are the aeroquip fittings.

You're lucky, the one I got for my turbo leaked like a sieve and caught fire. Cost over $100 to get as well.

Prob cos the one you put on your turbo was either
1. not teflon inner
2. you didnt wrap it with heat sleeve
3. Something wrong with your installation.

To run it as a oil pressure line for a gauge would not see temps of a turbo.
I use the same line on my turbo with heat sleeve and its been like that for over 2 years. I think basically everyone uses the same line on their turbo feeds but some dont use the teflon inner with steel braid, they use the standard rubber inner with steel braid.

[iOnic]

It was teflon inner with steel braid and was made by Enzed. Wasn't crimped properly that's why it leaked. Don't get monkeys to make oil lines - it can end very very badly.

As for the gauge, +1 to what Akane said lol

[Bazda]

It was teflon inner with steel braid and was made by Enzed. Wasn't crimped properly that's why it leaked. Don't get monkeys to make oil lines - it can end very very badly.

As for the gauge, +1 to what Akane said lol

oh crimped thats your prob.

The ones I use are Aeroquip, what they use on aeroplanes etc. They are all screw together, none of this crimping.
They never leak!

Most people go electric, as its easier. But if you already have a gauge either sell it or use it buy buying the correct aeroquip lines.

[iOnic]

It was an Aeroquip braided hose and was crimped to a -4AN fitting. Fitting was screwed into the turbo.

eg:


The leak was between the hose and the fitting. How are your Aeroquip braided lines attached to the fittings that screw into the turbo? Not sure I completely understand how they "all screw together".

[Boosted_162]

Thanks all for your help, sounds like more hassle than its worth. Will turn them down and track down some electric ones

[Malcolm]

It was an Aeroquip braided hose and was crimped to a -4AN fitting. Fitting was screwed into the turbo.

eg:
http://img.alibaba.com/photo/237147187/braided_hose.jpg

The leak was between the hose and the fitting. How are your Aeroquip braided lines attached to the fittings that screw into the turbo? Not sure I completely understand how they "all screw together".

There's a barb on the back end of the fitting, then a nut tightens over the top to clamp it down tightly. Most braided hoses use in cars use this method, have a look at some fittings websites and you'll see what it looks like.

Might I add, -4 for an oil pressure gauge? Seems a bit overkill

[Bazda]

Those lines you used look just like the hoses on my washing machine.
If they are seriously those lines = Fail.

I only use the PTFE lines with aeroquip hose ends which seal with a 37 deg taper flare. All the race AN hoses use this flare.
To seal inside they use a olive nipple when screwed up tight that nipple forces onto the teflon line to create crazy seal - This is only for the ptfe lines. The ones with rubber on the inside seal a different way, commonly used on oil cooler lines along with pushlok.
PTFE lines and the fittings I use is the same as whats used on braided brake lines sold on the market.



• PTFE Teflon core stainless steel braid hydraulic hose
• 1500 psi working 10,000 psi burst .320I.D .440 O.D heat range and all other aspects of this hose is the same as the famous Aeroquip -6 hose
• Uses Aeroquip reusable fittings

This is the olive on the inside for sealing onto the PTFE hose.


This is the part screwed into the turbo, see the sealing edge of the flare, inside the hose end on the other side uses the reverse flare.

[Bazda]

It was an Aeroquip braided hose and was crimped to a -4AN fitting. Fitting was screwed into the turbo.

eg:
http://img.alibaba.com/photo/237147187/braided_hose.jpg

The leak was between the hose and the fitting. How are your Aeroquip braided lines attached to the fittings that screw into the turbo? Not sure I completely understand how they "all screw together".

There's a barb on the back end of the fitting, then a nut tightens over the top to clamp it down tightly. Most braided hoses use in cars use this method, have a look at some fittings websites and you'll see what it looks like.

Might I add, -4 for an oil pressure gauge? Seems a bit overkill

-4 for an oil pressure is an overkill, I use -3. But if you want faster response -4 gives you that.

[Malcolm]

I would be amazed if the difference in response was measurable, the volume needed to be transfered to go from min to max on an oil pressure gauge must be something in the order of 5-10ml, if that.

[Bazda]

Thanks all for your help, sounds like more hassle than its worth. Will turn them down and track down some electric ones

Its not a hastle at all.

You just have to buy the correct fittings.

people who sell the fittings:
http://www.gssperformance.co.nz/
http://www.fpp.co.nz/products/fragola_h ... tings.aspx
http://www.cardwells.co.nz/
http://www.alertmotorsport.com/

[Bazda]

I would be amazed if the difference in response was measurable, the volume needed to be transfered to go from min to max on an oil pressure gauge must be something in the order of 5-10ml, if that.

Yes I didnt think it would make a difference. But dad tried it on his esky and it made a huge difference.

[iOnic]

Those lines you used look just like the hoses on my washing machine.
If they are seriously those lines = Fail.

Nah that was just an example to show you what I meant by hose/fitting Those aren't even oil feed lines for a turbo so they're definitely not what was used What you posted is exactly what we had Dunno how it leaked.

Might I add, -4 for an oil pressure gauge? Seems a bit overkill

-4 wasn't for the oil pressure gauge, it was for the turbo oil feed - I use electronic gauges I like oil to stay in engine bays not in interiors

[Bazda]

Those lines you used look just like the hoses on my washing machine.
If they are seriously those lines = Fail.

Nah that was just an example to show you what I meant by hose/fitting Those aren't even oil feed lines for a turbo so they're definitely not what was used What you posted is exactly what we had Dunno how it leaked.

Might I add, -4 for an oil pressure gauge? Seems a bit overkill

-4 wasn't for the oil pressure gauge, it was for the turbo oil feed - I use electronic gauges I like oil to stay in engine bays not in interiors

Def must be an install error, or the wrong flare use so it didnt match the female end. This is what they use on aeroplanes! they cant have that leaking up in flight.

[Elmendorf]

IMO it was a case of the guy at Enzed just didn't give a flying f*#k because I was a female and can't possibly know what I'm talking about (found many instances of this crap around Palmerston North lately). His attitude sucked big time. And when I rang to advise his hose had caught fire he told me it was not possible as they never leak or catch fire.

It was definitely installed properly, the leaks were at the swagged end not the block or turbo fittings.

So glad work doesn't use Enzed, and I will never again either.