My M70 Pump return hoses are leaking from the crimped end. It looks like 37131159544 is NLA.
Does anyone have a recommendation or alternative?
I’m looking to purchase/replace the two hoses in red on the attached image.
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Both are non high pressure hydraulic hoses, I replaced them with 20 bar fuel, oil, diesel resistant hoses, removed the crimped parts, re-used the metal part and it works well on my E32 750 and also on my E36 M3. Feed and return lines.
The instructions for the M3 are here from NJBMWCCA http://njbmwcca.org/wp/wp-content/up..._HOSE_Rev0.pdf
Same procedure, quite common on M3 to do it that way. Here pics where we made it on my M3 with the power steering cooling line http://e32b12.blogspot.jp/2013/03/e3...-oil-leak.html
And if you need to make nice hose bends, Unicoil is your friend http://www.jegs.com/p/Gates/Gates-Un...43357/10002/-1
Unicoil allows you to configure custom-bent hoses using straight hose. The Unicoil is made of a stainless steel and features a metal spine that will permanently hold its bend.
Last edited by shogun; 03-15-2018 at 07:08 PM.
Shogun tricks and tips for the E32 series are HERE!
Thank you Shogun for the reference. I ordered the hoses from Bav Auto but I expect to get an email tomorrow that they are not available. If that’s the case I’ll go the route you prescribed.
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Looks like the hose is available through the dealers, like www.scorebmwparts.com, at $163.51 ea.
https://scorebmwparts.com/parts/inde...&siteid=218743
More than $300 for 2? I fixed it with my hoses + hose clamps for less than $20
Shogun tricks and tips for the E32 series are HERE!
One tip i learned is to use fuel injection style claps in place of the standard screw type. They seal better and almost never strip.
I like using a 'lined worm gear clamp', available from Grainger's:
http://idealtridon.com/aftermarket/lined-clamps/
Liner prevents notches from cutting into rubber or silicone hose.
Last edited by JDP530; 03-16-2018 at 11:25 PM.
I like to use Oetiker clamps for a nice OEM look... Buying a kit and a tool was the best addition to my tool chest in a long time.
2006 R53 JCW (British Racing Green) - 1994 E31 840Ci 6spd (AVUS Blue)
2021 F56 JCW (Rebel Green) - 2000 E38 740i Sport (Titanium Silver)
2017 F26 X4 M40i (Carbon Black) - 2007 E91 328iT (Deep Green)
2012 E82 135i M Sport (Marrakesh Brown) - 2015 E84 X1 (Cashmere Silver)
2005 E53 X5 3.0i Sport (Kalahari Beige) - 2000 E36/7 M Roadster (Oxford Green)
2000 E38 740i Sport (Oxford Green) - 1999 E36 M3 Coupe (Fern Green)
1995 E31 840Ci Canadian (Oxford Green) - 2000 E36/8 M Coupe (Oxford Green)
2004 E46 330Ci (Oxford Green) - 2001 E36/8 Z3 3.0i Coupe (Oxford Green)
2002 E39 525i Sport (Oxford Green) - 2002 E36/7 M Roadster (Oxford Green)
2001 E53 X5 3.0i Sport (Oxford Green) - 2007 E63 M6 (Silver Grey)
1995 E31 840Ci (Oxford Green) - 2006 E86 M Coupe (Sepang Bronze)
2001 E39 530i Sport (Aspen Silver) - 2009 E92 M3 (Space Grey)
2001 E38 740i Sport (Sahara Beige) - 2008 E92 M3 (Melbourne Red)
2000 E38 740i Sport Canadian (Sahara Beige) - 1997 E31 850Ci (Jet Black)
The low pressure hoses are easy to replace, and much cheaper. Here is what I did
1. Remove the hoses,
2. Take a dremel tool and carefully remove that outer metal covering on the ends. Use a disk and remove the bell shaped cover. Cut a groove in them carefully, and then open them up with a screw driver. Be careful, but easy to do
3. Go to your closest auto parts store and buy some hoses like Shogun said above
4. Use new clamps, clamp onto the OEM ends you took off, and there you go.
CSi #18 - Car & Driver Magazine 1994 actual test car
-- Hellrot/Black-Gray (1 of 1 NA CSi color combination)
BMWCCA E31 Chapter International Clubs Liaison
North America Representative, 8er.or Board of Directors
[QUOTE=CDO5OO1A;29978054]I'm with you on this one.
Attachment 624765
I used the same style clamps recently on complete fuel system from tank to rails.
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