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Old Nov 3, 2011 | 05:23 PM
  #16  
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Ahh **** I am sorry tosee this Randy
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Old Nov 3, 2011 | 05:39 PM
  #17  
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Originally Posted by blown 87
That is the reason I will never put a gauge like that on my car.
I have said it to a lot of folks, mark my words, some one is going to set a 928 on fire because of one of them, looks like Randy takes first place.
Greg, +1

I rather feel a better way to measure fuel pressure may be to fit a sender unit somewhere on the pump discharge. It will read a slightly higher pressure than the rail becuase of transmission losses in hte plumbing but it would be accurate enough I suspect. The the signal could then be data logged or put on an analogue display in the cabin. The mount could also be made very robust. Less likely that a leak would flash off in that area.

Pressure gauge connections are infamous for causing fires on oil refineries.

Trouble with leaks in the engine bay is there is a good chance something electrical or a hot surface could flash it off.

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Fred R
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Old Nov 3, 2011 | 05:45 PM
  #18  
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Originally Posted by blown 87
That is the reason I will never put a gauge like that on my car.
I have said it to a lot of folks, mark my words, some one is going to set a 928 on fire because of one of them, looks like Randy takes first place.
Greg, +1

I rather feel a better way to measure fuel pressure may be to fit a sender unit somewhere on the pump discharge. It will read a slightly higher pressure than the rail because of transmission losses in the plumbing but it would be accurate enough I suspect. The signal could then be data logged or put on an analogue display in the cabin. The mount could also be made very robust. Less likely that a leak would flash off in that area.

Pressure gauge connections are infamous for causing fires on oil refineries and we use taper threads to boot.

Trouble with leaks in the engine bay is there is a good chance a hot surface or electrical spark could flash it off.

Regards

Fred R
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Old Nov 3, 2011 | 06:10 PM
  #19  
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How much for the interior???


Sorry to hear..hope it'll clean up easily..
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Old Nov 3, 2011 | 06:17 PM
  #20  
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Dibs on the transmission. JK
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Old Nov 3, 2011 | 06:23 PM
  #21  
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Randy sorry to see your ride catch fire,
this makes me think that it might be a better idea to have the fuel pressure sender removed and the outlet capped unless the sytem is being tested.l

As Greg already posted the reanson for the spark was a leaking ignition wire open the hood run the car after capping the sender outlet and you should be able to find the sparking wire
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Old Nov 3, 2011 | 06:28 PM
  #22  
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First, happy that YOU are ok.
Second, good that you car as only minor damage.
Third, now I'm sure I won't put a gauge on my car...

Bring her back to life soon!

Last edited by Bertrand Daoust; Nov 3, 2011 at 09:56 PM.
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Old Nov 3, 2011 | 07:10 PM
  #23  
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There is a whole bunch of arcing going inside the vented distributor, and there is nothing you can do about that except either go to a COP design or pressurize the distributors like Jag did on the V12's to keep fuel vapor out.

I have had 2 V12 Jags catch on fire in my shop due to leaking lines an the distributor being deep down in the V, and one blew the cap into little pieces.

So the best defense is to not have any fuel vapor or liquid where it should not be.
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Old Nov 3, 2011 | 07:32 PM
  #24  
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Very sorry Randy,glad you saved it.
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Old Nov 3, 2011 | 07:37 PM
  #25  
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Originally Posted by RFJ
Very sorry Randy,glad you saved it.
+1
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Old Nov 3, 2011 | 07:37 PM
  #26  
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Oh My - sorry to see this Randy. Hope the fix is quick and clean!
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Old Nov 3, 2011 | 07:37 PM
  #27  
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Randy,
Damn that sucks. Glad you and the car (mostly) are OK.
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Old Nov 3, 2011 | 07:39 PM
  #28  
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Originally Posted by Tony
with out me searching right away..any good sources for such a set up. Any one have pictures or a how to for a 928 specific system?
Tony - well I think you have to make your own...

https://rennlist.com/forums/showthre...eferrerid=6055

Alan
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Old Nov 3, 2011 | 08:17 PM
  #29  
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Originally Posted by Lizard931
Replace your ign leads! You have a leaky lead somewhere that created a spark and ignited it.
Sorry to see this.
Yup, I was going to say the same thing.

Since it was a small leak, the gas would have evaporated by the time it got to the headers and even then, it needs a lot fo heat to ignite it but one arching wire will spark it up in an instant.


Good save.
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Old Nov 3, 2011 | 10:00 PM
  #30  
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Randy:

That sucks...but it could have been much worse. Nice job!
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