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Injector line "plug seal" replacement

Injector line "plug seal" replacement

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Delta KJ
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My D318 engine has a cracked "plug seal" where the fuel injector line connects to the fuel pump by way of the hex nut.  Cat still carries new "plug seals" and they are priced at a whopping $0.25 each.  Are these "plug seals" silver soldered to the injector lines or are the connected some other way?
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Wed, Dec 14, 2022 11:56 PM
trainzkid88
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yes id say there soldered. they are on other brands.
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Thu, Dec 15, 2022 5:57 AM
trainzkid88
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Reply to trainzkid88:
yes id say there soldered. they are on other brands.
the flux id use is eaziweld 801 its 30 percent zinc chloride liquid. this stuff will let you solder monel and stainless. general use is dilute 1 to 4 parts water
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Thu, Dec 15, 2022 6:02 AM
Old Magnet
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Reply to trainzkid88:
the flux id use is eaziweld 801 its 30 percent zinc chloride liquid. this stuff will let you solder monel and stainless. general use is dilute 1 to 4 parts water
Are we talking about the fuel injection line "ferrules"? Can't say as I've heard them referred to as "plug seals". Do you have a part number? I have never had any success in locating just the ferrules.
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Thu, Dec 15, 2022 6:40 AM
Delta KJ
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Reply to Old Magnet:
Are we talking about the fuel injection line "ferrules"? Can't say as I've heard them referred to as "plug seals". Do you have a part number? I have never had any success in locating just the ferrules.
 My parts books calls them "plugs" but my Cat dealer's parts description is "plug seal".  I would call them ferrules... the part number is 2F2990. 

 [attachment=69974]Capture.JPG[/attachment]
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Thu, Dec 15, 2022 7:24 AM
Old Magnet
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Reply to Delta KJ:
 My parts books calls them "plugs" but my Cat dealer's parts description is "plug seal".  I would call them ferrules... the part number is 2F2990. 

 [attachment=69974]Capture.JPG[/attachment]
Attachment
As stated at the bottom of the parts page (with the triangle) plug seals are just used for shipping and storage. Meant to keep crud out of the fittings and lines.
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Thu, Dec 15, 2022 7:59 AM
Delta KJ
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Reply to Old Magnet:
As stated at the bottom of the parts page (with the triangle) plug seals are just used for shipping and storage. Meant to keep crud out of the fittings and lines.
No wonder why they were so cheap!  My Cat dealer said I can pick them up today... Won't I be surprised!
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Thu, Dec 15, 2022 11:17 PM
Delta KJ
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Reply to Delta KJ:
No wonder why they were so cheap!  My Cat dealer said I can pick them up today... Won't I be surprised!
To echo what Old Magnet has already said; Can't find the fuel injector line ferrules for the D318.
Are the ferrules silver soldered to the injector lines? If so, couldn't a ferrule be "sweat" off of another line and silver soldered it to another line?
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Thu, Jan 19, 2023 12:28 AM
Rome K/G
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Reply to Delta KJ:
To echo what Old Magnet has already said; Can't find the fuel injector line ferrules for the D318.
Are the ferrules silver soldered to the injector lines? If so, couldn't a ferrule be "sweat" off of another line and silver soldered it to another line?
Have to buy the complete line or have the line made.
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Thu, Jan 19, 2023 12:40 AM
Old Magnet
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Reply to Rome K/G:
Have to buy the complete line or have the line made.
No reason you couldn't swap a ferrule, yes they are silver soldered on.
After much searching I found a source for the fittings, either silver solder on or compression type.
Haven't tried to purchase any so any feedback would be appreciated.
 [attachment=70814]Injection line parts.jpg[/attachment]
 
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Thu, Jan 19, 2023 3:41 AM
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