RE: [DML] Re: $&@?#}%£€## Fuel pressure o-ring
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RE: [DML] Re: $&@?#}%£€## Fuel pressure o-ring



I believe that most issues with the o-rings are installation related. It is very easy to damage an o-ring without even realizing it and have it fail in service. 

They should lubricated during installation, not over-stretched, not rolled unevenly, and if rolled during installation should be rolled back to natural orientation without leaving any twist in the ring. When streching over edges, it is easy to damage them. It is also easy to damage a ring using a pick as an installation tool, or when installing it dry.

If proper installation procedures are followed, I think either Nitrile or Viton would be fine. I don;t believe the rings are failing due to fluid compatibility issues. The nature of the damge we are seeing (little "bites" taken out of the rings) is consistent with installation damage.



To: dmcnews@xxxxxxxxxxxxxxx
From: deloreanbiker@xxxxxxxxx
Date: Tue, 31 Aug 2010 13:49:37 +0000
Subject: [DML] Re: $&@?#}%£�## Fuel pressure o-ring


















 



  


    
      
      
      Dave , you took the words right out of my mouth.  Over 70,000 miles on my first DeLorean (now Dave Delman's fossil fuel burner) and 140,000 miles on my current DeLorean And I have never replaced the fuel pressure O-ring.  



If it ain't broke, don't fix it.



dick Ryan



--- In dmcnews@xxxxxxxxxxxxxxx, "daveswingle2" <swingle_dmc@...> wrote:

>

> Academic question  - Why did you replace that O-ring the first time you did it? Was the original one bad in some way? I've never seen the OEM original o-ring chip like that, anytime I've seen this  problem it was a replacement ring that someone had put in "just because". 

> 

> There is a better (viton rather than rubber) available.

> 

> Dave S

> 

> --- In dmcnews@xxxxxxxxxxxxxxx, Dave Sontos <dsontos@> wrote:

> >

> > You know what the problem is right off the bat, fuel pressure o-ring has bit the dust. Drove the car home and sure enough there is a big bite in the o-ring. Today I went and bought five of them to keep in the car but someone out there must have a fix for this problem.

> >

>





    
     

    
    






   		 	   		  

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