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> engine chugging and missing
Lgs ShelbyGT
post Nov 6 2009, 10:44 PM
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QUOTE (kahmann @ Nov 6 2009, 10:27 PM) *
I found a fuel leak where the fuel line meets the rail, so I pulled the line apart and found that one of the o-rings had broken.



Ken,
Great news that you found the problem's source.
Can't wait until you put everything back together and give us an update after a road test.
Is it unusal that the o-ring broke?
Lg
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kahmann
post Nov 6 2009, 10:46 PM
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QUOTE (Lgs ShelbyGT @ Nov 6 2009, 10:44 PM) *
Ken,
Great news that you found the problem's source.
Can't wait until you put everything back together and give us an update after a road test.
Is it unusal that the o-ring broke?
Lg

I've given this line a bit of a workout over the past year from installing new fuel rails, uninstalling them, installing them again, removing the intake a couple of times, and other misc projects. Now I know to keep an eye on these everytime I pull this thing apart.
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SGT/SC#0471
post Nov 6 2009, 11:20 PM
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You better buy 64 of them.... (IMG:style_emoticons/default/hysterical.gif)
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kahmann
post Nov 6 2009, 11:29 PM
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QUOTE (SGT/SC#0471 @ Nov 6 2009, 11:20 PM) *
You better buy 64 of them.... (IMG:style_emoticons/default/hysterical.gif)

I grabbed a value pack at Kragen tonight - 172 count. (IMG:style_emoticons/default/laugh.gif)
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greaser
post Nov 7 2009, 07:13 AM
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glad you got it worked out ken
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SGT/SC#0471
post Nov 7 2009, 10:45 AM
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QUOTE (kahmann @ Nov 6 2009, 11:29 PM) *
I grabbed a value pack at Kragen tonight - 172 count. (IMG:style_emoticons/default/laugh.gif)



Awesome keep us posted.
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kahmann
post Nov 7 2009, 12:55 PM
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The oil was due so I dumped it. I found a peanut sized chunk of metal attached to the magnetic drain plug.
After I finish freaking out, I'll post some pics in a new thread.
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devildog350
post Nov 7 2009, 01:27 PM
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QUOTE (kahmann @ Nov 7 2009, 03:55 PM) *
The oil was due so I dumped it. I found a peanut sized chunk of metal attached to the magnetic drain plug.
After I finish freaking out, I'll post some pics in a new thread.

Pull the oil filter, cut it open, spread out the media and check it for metal particals.
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kahmann
post Nov 7 2009, 01:52 PM
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QUOTE (devildog350 @ Nov 7 2009, 01:27 PM) *
Pull the oil filter, cut it open, spread out the media and check it for metal particals.

What do you suggest cutting it with?
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SGT/SC#0471
post Nov 7 2009, 02:01 PM
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Dude...

Oil filter...punch a hole it in and use a set of tinsips. Or a can opener...I do it every time...
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devildog350
post Nov 7 2009, 02:03 PM
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What he said
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kahmann
post Nov 7 2009, 02:05 PM
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OK thanks. I'll get some pics up of the inside of the filter when I can.
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AstroDan
post Nov 12 2009, 12:49 PM
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I realize winter means cooler ambient temp's - but - what is vapor pressure and why does it need to increased for winter. Never heard of butane in gas before, must be a Ca. thing?????


With the cooler overall temps, an increase in vapor pressure will allow complete combustion and keep emmissions lower. I'm not sure if this a California only thing, or not.
I will talk with the Engineer again to get a better/more complete understanding of the reasoning...
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JCSESI
post Nov 12 2009, 01:36 PM
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QUOTE (AstroDan @ Nov 12 2009, 02:49 PM) *
I realize winter means cooler ambient temp's - but - what is vapor pressure and why does it need to increased for winter. Never heard of butane in gas before, must be a Ca. thing?????


With the cooler overall temps, an increase in vapor pressure will allow complete combustion and keep emmissions lower. I'm not sure if this a California only thing, or not.
I will talk with the Engineer again to get a better/more complete understanding of the reasoning...



Cooling a liquid lowers the vapor pressure which make the fuel more "dense". This messes up your volumetric efficiency (fuel to oxygen ratio) and the result is poor performance.
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