74 tii Fuel leak by front cover inside engine

[Jangun]

Dear 2002 tii community,

I started my 1974 tii today and the fuel smell was stronger than usual, After 5 minutes, I turned off the car, I went outside and saw that fuel was dripping beneath the engine.  After reviewing some of the discussions on this site I decided to replace the two hoses (yellow arrows).  I restarted the car and let it run, but fuel was coming out of the front cover next to the four hoses that go into the injection system ( red arrow). Hoping someone can shed some light or guide me as to whether this is something I can fix myself.  I thank you in advance.  Please note that I'm new to the 2002 tii. I purchased the car two months ago.  Thank you, 

Jangun

[Mark92131]

6 minutes ago, Jangun said:

After reviewing some of the discussions on this site I decided to replace the two hoses (yellow arrows).

 

The 2 hoses you replaced are high pressure from the pump.  The 2 clamps on the one for the fuel filter are correct, but they don't look cinched/tight enough.  The other hose you replaced need a fuel injection line clamp.  The pressure valve connection for the 4 injector hoses have rubber O-rings that will crack and leak (part # 13511257559).  You can replace these yourself.

 

Mark92131

 

https://www.realoem.com/bmw/enUS/showparts?id=2583-USA-10-1972-114-BMW-2002tii&diagId=13_0684

[bergie33]

13 minutes ago, Mark92131 said:

 

The 2 hoses you replaced are high pressure from the pump.  The 2 clamps on the one for the fuel filter are correct, but they don't look cinched/tight enough.  The other hose you replaced need a fuel injection line clamp.  The pressure valve connection for the 4 injector hoses have rubber O-rings that will crack and leak (part # 13511257559).  You can replace these yourself.

 

Mark92131

 

https://www.realoem.com/bmw/enUS/showparts?id=2583-USA-10-1972-114-BMW-2002tii&diagId=13_0684

 

The pressure valves use a very small crush washer, not an o-ring. The o-rings are under the 4 hex screws that run along the top of the pump. See if there is fuel puddling there.

[Jangun]

Mark, Karl, really appreciate the guidance here.  I purchased the 13511257559 parts and will replace as well as tightening the clamps and buy a fuel line clamp. 

 

Very helpful and useful! Thank you.

[SydneyTii]

And make sure the bolt that holds the banjo that the 2 hoses attach to is nice and tight, all the suggestions are good as well especially the 4 x O rings in the head of the pump but given where your fuel is coming out of my money is on the 2 hoses or where they attach to as there’s a fair bit of pressure there!

[Jangun]

Thank you Sydneytii! Will work on tightening everything.  When replacing the O-Ring is there a specific torque ratio or just tighten as much as I can?

[SydneyTii]

I just tighten the hex bolts onto the O rings above the suctions vales so they are secure and tight I’ve never used any torque setting, the same with the banjo bolt.

[Jangun]

Sydney, you were right, after replacing the incorrect clamp with a fuel line one and tightening all the clamps, no more leak! Thank you!!