steering fluid leak

Need technical Q/A then you're in the right place

Moderator: martauto

Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 12:30 pm

Nothing drastic, just a slight drip but enough to be annoying. What size washer do I need for between the hollow bolt and pump? Thanks.
Image

E30 zone - promoting adult illiteracy since 2004
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 1:18 pm

16mm and 14mm (2 per bolt- bolts are different sizes)
Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 1:25 pm

Thanks. That's the internal diameter, yes?
Image

E30 zone - promoting adult illiteracy since 2004
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 4:28 pm

Yes, and remember they are 'crush' washers, I.e soft aluminium.
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 4:29 pm

Yes, and remember they are 'crush' washers, I.e soft aluminium.
Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 4:33 pm

Aha, so not copper like I bought? :cry:
Image

E30 zone - promoting adult illiteracy since 2004
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 4:48 pm

They will be fine :D
Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 4:59 pm

Theyre not though, they leak. I've replaced them twice and cleaned the thread on the pump and the banjo fitting, and fluid still comes out.
Image

E30 zone - promoting adult illiteracy since 2004
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 7:18 pm

mmm, strange, check the mating faces that the washers sit against for scores/burrs particularly under the head of the bolt.
Grrrmachine
E30 Zone Wiki / Team Member
E30 Zone Wiki / Team Member
Posts: 8043
Joined: Sat Feb 09, 2008 11:00 pm
Location: Warsaw, Poland

Post Sun Nov 16, 2014 7:46 pm

I've got a similar leak that I've been meaning to fix for ages. Someone recommended Dowty seals, but I can't seem to find any over here :(
User avatar
BHadley
E30 Zone Regular
E30 Zone Regular
Posts: 902
Joined: Sun Sep 06, 2009 11:00 pm
Location: Newton abbot, Devon

Post Sun Nov 16, 2014 8:13 pm

Mine leaked a slight drip after a power steering change.

I changed the larger crush washers for copper and found the right torque setting of 40nm (
that's the 22mm banjo nut)
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 10:35 pm

Dowty washers with a nitrile inside seal are a last resort (e-bay) not cheap at over £2.00 each.
User avatar
BHadley
E30 Zone Regular
E30 Zone Regular
Posts: 902
Joined: Sun Sep 06, 2009 11:00 pm
Location: Newton abbot, Devon

Post Sun Nov 16, 2014 11:02 pm

If your going down the dowty route it must be cheaper from a hydrolic hose place like pirtek for example ?
Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 11:04 pm

Dowty? nitrile?? :?:
Image

E30 zone - promoting adult illiteracy since 2004
User avatar
BHadley
E30 Zone Regular
E30 Zone Regular
Posts: 902
Joined: Sun Sep 06, 2009 11:00 pm
Location: Newton abbot, Devon

Post Sun Nov 16, 2014 11:07 pm

Its a metal sealing washer with a nitrate center ( internal rubber ring in the center) used on high pressure hoses like commercial steam cleaners and hydrolic power packs for things like jack hammers that rip up roads ...... Take a lot of beating,
User avatar
scallyally
E30 Zone Newbie
E30 Zone Newbie
Posts: 228
Joined: Mon May 28, 2012 11:00 pm
Location: east london

Post Sun Nov 16, 2014 11:09 pm

Just Google Dowty washers, all will be revealed. P.S you must have got through some fluid!
Cloggy Saint
Old Skooler
Old Skooler
Posts: 8027
Joined: Sun Jan 09, 2005 11:00 pm
Location: zummerzet

Post Sun Nov 16, 2014 11:15 pm

Ordered! Haven't got through much fluid as re-fitting the steering hoses was one of the last jobs of an engine swap and I noticed it straight away.
Image

E30 zone - promoting adult illiteracy since 2004