Oil pressure line

[patrics]

Hi,
This is just the oil pressure feed – I wasn’t really happy with the quality of what’s available so made it with brake hose. The pressure switch under the dash is for the low pressure light.

Regards
Steve

[2cams70]

Rubber used in brake systems is generally incompatible with engine oil. Unless I was sure what type of rubber was being used for that hose and whether or not it is compatible with mineral oil I'd be removing it ASAP and replacing it with something else.

[StressCraxx]

Hi,
This is just the oil pressure feed – I wasn’t really happy with the quality of what’s available so made it with brake hose. The pressure switch under the dash is for the low pressure light.

Regards
Steve

If you made up that hose, it's hydraulic hose, either with a rubber liner or teflon. Should be acceptable. On edit, I would not let your electrical wires near braided stainless hose. The braid acts like a hacksaw on anything it touches. I often sleeve my braided stainless hoses so they don't damage anything they might contact.

[2cams70]

f you made up that hose, it's hydraulic hose, either with a rubber liner or teflon. Should be acceptable. On edit, I would not let your electrical wires near braided stainless hose. The braid acts like a hacksaw on anything it touches. I often sleeve my braided stainless hoses so they don't damage anything they might contact.

The OP said he made it out of brake hose. If it's brake hose (eg. SAE J1401) it's not suitable for use with engine oil.

[prezoom]

Based upon the fitting used, it appears to be -3 AN teflon hose, used for brake lines on almost all race cars. Have used it for oil pressure lines, will last forever and will exceed pressures that any engine oil pump can generate. I do not believe I have ever seen a -3 AN line that uses rubber hose.

[Andy8421]

Based upon the fitting used, it appears to be -3 AN teflon hose, used for brake lines on almost all race cars. Have used it for oil pressure lines, will last forever and will exceed pressures that any engine oil pump can generate. I do not believe I have ever seen a -3 AN line that uses rubber hose.

The Goodridge / Aeroquip brake hoses (assuming that is what the OP has used, or a similar spec hose from another manufacturer) use PTFE (Teflon) liners, and are good for 2000psi. Unlikely to be a problem on a Twinc oil pressure line.

More concerning is the lack of a hose clamp on the bottom radiator hose.....

[patrics]

Hi,
Yes, this is Teflon lined hose and perfectly okay with mineral oil or brake fluid. It is always right to question these things and 2cams70 concern is not with pressure just mineral / vegetable compatibility. In a similar vein I all ways question the use of nylon hose for clutch pipes – it was a big problem back in the day.
The braided stainless hose you buy these days has a plastic coating on the outside so the stainless braid doesn’t rub against anything – but should always be careful with routing anything.
I’m rebuilding my car to sell it, so the radiator isn’t in yet!

Cheers
Steve