AYC and braided hoses

[Grid]

Replacing the AYC lines running from pump to diff with steel braided hoses - any downsides to doing that? Will a Evo 4-9 set fit length-wise?

http://gb-ent.com/drivetrain/differentials?product_id=6536

I rounded a nut off on one of the fittings, so I should replace either part of it or both lines end-to-end anyway.

 

[lathiat]

No idea about the braided part, but:

the torque on those lines into the diff is very small about 6-8Nm. That's much less then you think. If you lean on it even slightly even with a small spanner on the outer line the casing will crack. Check the torque in the manual and use a torque wrench for that one or just be very very careful. Nip it up and don't put any pressure on it.

 

[pretzil]

How do you get a torque wrench over a hydraulic fitting?
I think the bleed nipple is certainly the weaker point.
As for the braided lines, I'd say the fittings would be right, but I doubt the lengths would be same between the evo and vr4. Maybe get some custom lines made up? It's just a flare nut fitting at each end isn't it?

 

[Grid]

That's what I was thinking - I will bring the old fittings over to a hydraulics shop, see what they say

 

[lathiat]

The outer line is definitely weaker than the bleed nipples. Good point about torque wrench though. Ok that case just do them up very gently!

I know because I cracked mine

 

[Grid]

maybe the fittings are originally tightened very softly, but as they corrode the breaking force required gets much higher, which is what made me round off that nut. I had to take everything off at the diff and undo the last fitting in a bench vice.

 

[PHIL069]

How do you get a torque wrench over a hydraulic fitting?

With a crows foot

 

[Grid]

I've always wondered what these are used for, cheers!

You probably want the flared crows foot though:

 

[mookers]

^^^ wouldn't the offset make the torque reading inaccurate?

 

[Grid]

^^^ wouldn't the offset make the torque reading inaccurate?

Probably. Not by much though since the length of the de-facto lever is not much at all.

Took the fittings to a hydraulics store, and they weren't helpful at all, it seems that it's not a standard type of fitting at all. Sigh.

 

[twisted32]

Not if the offset is at 90degrees....ie dont change the length of the lever arm.