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Engine Specific Info and Questions => IDI Engine => Topic started by: firestorm13666 on November 22, 2005, 09:13:39 pm

Title: Injector return lines
Post by: firestorm13666 on November 22, 2005, 09:13:39 pm

Ok i have a few questions.The cap on the number 4 injector is bad and needs replaced so what can i use to replace it and the other injector return lines?I saw something about using air line that is used for air brakes and other things for a diesel,and where can i get the line to use iam new to diesel and have no clue where to get it.Thanks for any help guys

Title: Injector return lines
Post by: watsongs on November 22, 2005, 10:15:15 pm

I used clear pvc line from the hardware store - heat the end with a lighter and squeeze the ends together with a pair of pliers; they'll melt together and seal.

Title: Injector return lines
Post by: firestorm13666 on November 22, 2005, 11:17:51 pm

any idea what size i should get?And thanks for the help

Title: Injector return lines
Post by: GTD. on November 23, 2005, 07:34:42 am

Mine were starting to perish so I just went to my local vw/audi parts desk and got some diesel injector piping (the rubber pipe with the braided fabric outer sheath) off the roll to replace all the old piping with.

Title: Injector return lines
Post by: watsongs on November 23, 2005, 07:49:39 am

I think I used 1/8 for the return lines and 5/16 for the larger lines - it's nice to have clear lines to see what's happening with the fuel.  The hoses are a bit undersized, so heat them first, and then they'll shrink back as they cool for a tight fit.

I've also heard that if you go to a semi truck repair place that they have air brake line that's clear and purple.

Title: Injector return lines
Post by: BlackTieTD on November 23, 2005, 09:04:16 am

the dealer can provide the 'plug' or 'cap' for #4 injector.

i forget the exact name, but they keep them in stock for another purpose besides being a plug in a diesel engine.... if you really want to look into it, call bud at crosby dealership in kitchener and he'll know what you are talking about: 519.894.9313

Title: Injector return lines
Post by: firestorm13666 on November 29, 2005, 07:54:39 pm

ok i got some Fuel line it was $.63 cents a foot.It is urethane so how good is it and well how good is it to use with biodiesel when i start to use it?Thanks guys

Title: Injector return lines
Post by: firestorm13666 on November 29, 2005, 10:19:11 pm

Ok thanks for the info.So to replace all of my rubber lines to run bio what all sizes and how much of each would i need?Thankd for the help

Title: Injector return lines
Post by: tylernt on December 24, 2005, 05:16:38 pm

On one of the diesel Rabbits I had, the PO had screwed a large wood screw into the end of the #4 injector return hose.