Composite Pipe Repair

[Del Rykert]

Gray.
     Thanks for sharing your observations and stating them as accurately as you could. I don't perceive any of your post on this to be slamming a given product but pointing out some of the issues that do occur when people make C.F. choices for pipes. I myself can't justify using one on my 4 cycles but will use them on my 2 cycles. 
    This sharing is one of the very reason I stay active and support the NSRCA. Thanks for doing more than your share.
 
     Del K. Rykert
     AMA - 8928 
     NSRCA - 473
     Kb2joi - General 


  ----- Original Message ----- 
  From: Gray E Fowler 
  To: discussion at nsrca.org 
  Sent: Friday, September 26, 2003 6:37 AM
  Subject: Re: Composite Pipe Repair



  Ed 

  I was the person who change the subject of the original post, because in no way was I trying to single out any supplier, my comments were in general as there are several composite pipe suppliers on the market, and in my locale about half fail at the inlet tube due to high temperature. Bolly got my kudos simply because they do not sand the outside of the pipe, and I have never seen a burned out Bolly pipe, granted only about 10 that I have seen. And as far as the sanding goes, I think I was pretty accurate in describing where that requirement came from, and I still disagree with the practice on such a thin structure, but as you have stated, to sell pipes it is a requirement. 
  I have never owned one of your pipes, but what I have seen has always been very light weight, excellent appearance (for what its worth), and good engine performance. I also know that more than 2% of the people that I know use your pipe in my area experience failure at the inlet, because somehow word gets around and they bring it to me to see if I can fix it. My point of the whole post was to attempt to educate people as to the difficulties of making a pipe that is affordable, looks good cuz it soooo important, is lightweight and durable. If your pipes had one flaw it was durability when 

  1. The header was not just right. 
  2. The operator had a lean run 
  3. One of those in combination with a hot day-no cooling. 

  By switching to a higher temp resin and process you obviously made a move in the right direction, and fixed the one weakness, however small, of your pipes. In my opinion, nothing I posted was incorrect nor misleading, simply my observations of the composite pipes in general.



  Gray Fowler
  Principal Chemical Engineer
  Composites Engineering
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