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RUS 640850 doesn't fit my rail?

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Old 07-22-2006, 11:21 AM
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Default RUS 640850 doesn't fit my rail?

I picked up a RUS-640850 fuel fitting, and everything I've read says that it should fit; it seems too small, the plastic clip won't fit on the end of the line. Why would my fuel rail inlet be larger?
Old 07-22-2006, 06:08 PM
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Originally Posted by Mr. Hyde
I picked up a RUS-640850 fuel fitting, and everything I've read says that it should fit; it seems too small, the plastic clip won't fit on the end of the line. Why would my fuel rail inlet be larger?
Sounds really failure, had basically the same problem with the RUS-651105 GTO Fuel line that is supposed to have the RUS-640850 3/8 fitting but actually has the 5/16, read: http://www.ls1gto.com/forums/showthread.php?t=91314
Old 07-24-2006, 10:06 AM
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Sure it is a 640850? They also make a 640860 that is the exact same but fits smaller 5/16 line.

Nate
Old 07-24-2006, 02:52 PM
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I measured the fitting and sure enough, both the plastic clip and the fitting itself are both 5/16" diameter. I'd say that someone switched it out, accidentally or otherwise. What a pain in the ***!
Old 07-24-2006, 03:39 PM
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That sucks man they have been on backorder for months now.

Nate
Old 07-24-2006, 04:04 PM
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Nate, ive sent you pm's in regards to my setup.. can you please reply
Old 07-24-2006, 06:42 PM
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that happened to me too i got the 5/16 with the 640850
Old 07-24-2006, 09:21 PM
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Originally Posted by Nasty N8
That sucks man they have been on backorder for months now.

Nate
Thats why he should follow the LS1GTO link and contact Dennis Kim. All he needed was a email with a copy of my receipt and he mailed me the correct 3/8 fittings the same day.
Old 07-25-2006, 12:51 PM
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I took it back to my local speed shop this morning and we swapped it out. As it turns out, the RUS-640860 has the 3/8" fitting. It's listed that way on the package (3/8" for LT1, LT4, and LS1 Supply) even though Summit clearly lists it backwards.
Old 07-25-2006, 02:06 PM
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No Russell must have mest it up all my fittings here are 640850=3/8" and 640860 are 5/16"

Hyde you found them in stock? How many does he have? I need about 2 dozen.

Nate
Old 07-25-2006, 03:10 PM
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N8 - That's really weird that your fittings are correct...whereas all his were not. I doubt he has more than a handful on the shelf though, it's one of those shops that has a few of almost everything in stock, but not alot of any specific part; if that makes sense



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