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  #11  
Old 02-15-2018, 12:46 PM
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I had a similar issue with the same Parker push lock hose on my fuel system after a year and a half it started to dry rot bad anywhere it was exposed to heat so I replaced all of it and insulated the best I could.
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  #12  
Old 02-15-2018, 01:20 PM
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Parker 801 I assume ? I just chopped open a 2 year old piece of 836 (high temp) and it still looks like new on the inside
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  #13  
Old 02-15-2018, 02:32 PM
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Two years ago when I had the top end apart for rockers the lines were fine. According to the specs it should have no issues. These were feed lines not returns and I know for a fact my fuel never got over 150 degrees.
  #14  
Old 02-15-2018, 03:40 PM
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I had Gates hoses do that even though they were supposedly rated for diesel.

The only Parker hose I'll use is 836. Only comes in blue. It has the highest temp and pressure ratings of any.

Even though the fuel inside may not be more than the max temp, the ambient temperature of the engine bay and components the hoses pass by is likely greater. That was my justification. In the 6 to 7 years I ran them I never experienced Ford hat you have.
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  #15  
Old 02-22-2018, 01:41 PM
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yup, 836 here to.
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  #16  
Old 02-26-2018, 09:04 AM
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Good catch, I need to replace mine.
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  #17  
Old 02-26-2018, 09:18 AM
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It was only the hose with diesel flowing through it that did this. I used this hose for the water cooling of my turbos as well as the turbo drains and neither showed this kind of degradation.
  #18  
Old 02-26-2018, 03:38 PM
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Sounds like you got a mixed up hose from your parker store.

Cuz if you could put coolant through it and it's fine but the diesel made it crack, I don't think you got a diesel rated hose. Especially if it only took 2 years for it to happen.
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  #19  
Old 02-26-2018, 03:53 PM
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It’s parker push lok plus 801 there was no mix up.
  #20  
Old 02-27-2018, 06:25 PM
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I have gotten hose that was labeled wrong from the factory, that's what I was saying.

Supposed to be ___ but was in fact ___.
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