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84 FUEL TANK REMOVAL PROCEDURE w/PICS

 
 
Old 08-18-2011, 05:48 PM
  #31  
abecker
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You asked the question rhetorically if these tanks crack. I don't know, however, my 86.5 smells really bad if I fill more than 14 gallons. My father took it to his Porsche dealer and they "tightened" some fittings, charged several hundred and the problem never went away. I knew I needed to fix it myself which I prefer anyway. I read your post about changing the fuel sender O ring and ordered one hoping that is the problem. Received it yesterday. However, I recall one time I filled the car and looked underneath and fuel was spilling out. Since then, I've been careful not to overfill. Every once in a while I forget but it hasn't spewed fuel like that since. I really think I have a cracked tank also. Not in the mood to spend several hundred on another tank, so I really hope the O ring fixes the issue. I'll post the results in case the crack is a common issue with these tanks.

BTW, I love reading your procedures. They are just fantastic and really help a novice like myself feel like an ASE!
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Old 08-19-2011, 07:09 AM
  #32  
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Pretty much the same here, smell and dripping fuel if filled to the top; dripping stops after driving a bit.

Suspects: breather hose/cracked breather hose fittings/crack in tank similar to Dwayne/fuel sender seaL.

I took the tank out using Dwayne's guide - most like culprit, slightly folded-over sender seal that also caused the sender to rub against the tank splash well. As my car is in an advanced state of undress I can't tell you if the new seal worked even though it seems logical.

My tank was covered in liquid run stains/trails that didn't help. I put some fuel in the tank and moved it all around to see if the top of the tank had a leak - nothing.

How is the flexible fuel return hose at the toop of the tank? Clamped at the tank, crimped at the pipe end.
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Old 08-22-2011, 07:02 AM
  #33  
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I'd bet our vendors carry them, but ...
Just because I once went nuts trying to find anti-vibration mounts for a Jaguar, just like those shown in Dwayne's second post at the pump and filter:

http://www.vibrationmounts.com/
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Old 08-22-2011, 12:47 PM
  #34  
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Oaros - I replaced my oring this weekend following Dwayne's guide. Went very smoothly but like you mine is so undressed, I can't tell if the smell stopped. It seems reduced at least
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Old 08-23-2011, 02:06 PM
  #35  
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The oring replacement worked for me! My wife is so happy the garage doesn't smell anymore. Thanks a bunch, Dwayne.
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Old 08-24-2011, 12:34 AM
  #36  
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Originally Posted by abecker View Post
The oring replacement worked for me! My wife is so happy the garage doesn't smell anymore. Thanks a bunch, Dwayne.
That's great news! Glad it was a simple fix - Enjoy!
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Old 08-24-2011, 06:28 AM
  #37  
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so there is hope for mine which ponged at both ends before I started taking bits off.
Cheers!
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Old 08-24-2011, 11:45 AM
  #38  
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My o-ring looked to be in good shape, so I was surprised it made such a difference in smell. Hope yours works too.
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