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> Bottom oil line on 914/6 oil tank....
Joe Bob
post May 9 2005, 04:15 PM
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Stoopid freaking rotten godamned oil line is sweating out the pores of the rubber and cloth weave oil ine.....looks like a replacement is needed.....I don't think it can be removed without pulling the tank.

Anyone been able to get up to that nut with the tank in place? Should be the 36mm one ........ (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif)
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Carl
post May 10 2005, 12:40 AM
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Ummm ... what?
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For a fix of a related problem …

The oil line on the bottom of the 914-6 tank uses aluminum fittings (read: fragile) on a very rare hose. The design relies on the aluminum squeezing the hose between the inner and outer portions of the fitting to secure the seal.

Over time they begin to leak. Why? Because the heat cycles eventually harden and shrink the rubber. When it shrinks there’s more gap between the inner and outer parts of the fitting and oil escapes.

Unless you scavenge one from a 6 or an early 911, a replacement hose is very tough to find. The following is a simple repair my brother worked out on his 911S that has also worked on my 6.

Remove the rocker panel. Separate the fitting at the union where you typically drain the oil. If the hose at the tank end is loose on the aluminum fitting connected to the tank, it will unscrew pretty easily by twisting the hose. Of course, this presumes that the aluminum fitting is tight where it mounts to the tank. If it isn’t then you need the crows foot wrench or take the Z approach by doing a tankectomy.

Once the hose is separated from the aluminum fittings, rinse with solvent then clean thoroughly with acetone to remove all traces of oil from the rubber hose ends. Likewise, clean the fitting ends with solvent and acetone. Carefully coat the hose ends with a thin film of silicone sealer (Permatex or equivalent) and reassemble snugly. Silicone won’t bond to anything oily so be sure to get it clean. Let it set for 24 hours or so before putting oil back in the tank.

I know Cap’n Krusty is going to gag with the use of silicone sealer but there aren’t many other choices with this one. BE CAREFUL not to apply excess sealer but this fix is cheap and it works.

I had difficulty getting the tank end of the hose installed and had to bend the hose in half and keep it that way with a tie-wrap in order to thread it back onto the tank fitting. That hose is stiff. I also had to start threading the outer fitting onto the inner one BEFORE screwing the hose in because the hose was so stiff that it would cause the outer housing to cross-thread on the inner fitting.

Below are some photos of the typical swedge-style fitting that’s used on each end of the hose.

HTH,
Carl


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Posts in this topic
!   Bottom oil line on 914/6 oil tank....   May 9 2005, 04:15 PM
Lawrence   Yeah, it can be done, but you need the special wre...   May 9 2005, 04:20 PM
!   OK....anyone got one????? All I have is one of th...   May 9 2005, 04:29 PM
Porsche Rescue   Mine's leaking too. I was thinking the fitting...   May 9 2005, 04:55 PM
Lawrence   I hate to say this... check SkyRat. -Rusty   May 9 2005, 09:53 PM
brp914  
stahlwille.com 800 695-2714 sarasota, fl please c...   May 9 2005, 10:31 PM
Mrs. K     May 9 2005, 10:47 PM
Carl   For a fix of a related problem … The oil line o...   May 10 2005, 12:40 AM
Carl   asdf   May 10 2005, 12:40 AM
Carl   asdf 2   May 10 2005, 12:41 AM
Carl   that's it. The end.   May 10 2005, 12:41 AM
michel richard   When I built my /6 conversion I found I could read...   May 10 2005, 05:07 AM
xitspd     May 10 2005, 07:20 AM
Carl     May 10 2005, 10:14 AM
Porsche Rescue   And me too. Carl, should I decide to try the "re-...   May 10 2005, 10:25 AM
Carl   Hi Jim, Since the hose end comes into contact with...   May 10 2005, 10:34 AM
michel richard   OK, I don't have any of the supply hose left. ...   May 10 2005, 07:10 PM
michel richard   Previous shpt may not speak much. Sorry. Here...   May 10 2005, 07:11 PM
michel richard   Oops   May 10 2005, 07:11 PM
michel richard   Her's how my supply line connects to the elbow   May 10 2005, 07:12 PM
michel richard   And then on to the engine. I addd a drain fitting...   May 10 2005, 07:13 PM
michel richard   Good news is, the return line has clear markings:   May 10 2005, 07:14 PM
michel richard   I'm in Canada, and I love stuff made in the US...   May 10 2005, 07:15 PM
michel richard   Where it goes through the engine shelf of driver...   May 10 2005, 07:16 PM
michel richard   In the last shot, the aluminum you see is a sleeve...   May 10 2005, 07:19 PM
michel richard   In setting these up, my thought was that a lot of ...   May 10 2005, 07:23 PM
Porsche Rescue   So the supply and return hoses are a different siz...   May 10 2005, 07:23 PM
michel richard   I guess they are. I'll go and measure, be bac...   May 10 2005, 07:28 PM
michel richard   The supply hose is 1.250 O.D. Here's a shot, ...   May 10 2005, 07:41 PM
michel richard   The return line is 1.050 O.D. I added a shot of t...   May 10 2005, 07:42 PM
michel richard   Note that none of the fitting-to-hose connections ...   May 10 2005, 07:44 PM
Porsche Rescue   Thanks a lot for all your good info and pics.   May 10 2005, 07:47 PM
michel richard   This is the place where I got the hose. The owner...   May 10 2005, 07:51 PM
Gint   Thanks Michel! http://ww...   May 10 2005, 08:05 PM
J P Stein  

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