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Old 07-06-2010, 09:21 PM   #1 (permalink)
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6.2 diesel fuel return line question

Ive been slowly replacing my fuel lines on my 1989 Jimmy with a 6.2. I am in the middle of replacing the return lines that loop in between the injectors. These lines are a dealer part and cost way too much money for what they are in my opinion, so I am trying to find a suitable soft line. I cant find a size hose that fits on the nipple on the injector that is fuel injection rated, but I have some vacuum line in my garage that is the perfect size. So my question is, what is the pressure on the return line? Is it super high like it is from the IP to the injectors? I have spent the last couple hours looking around here and CK5 but have not found an answer. If it is low pressure I think I am going to give it a whirl but if not Ill just have to keep searching around to find what I need. Thanks for any help...
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Old 07-06-2010, 10:13 PM   #2 (permalink)
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ask that here

http://www.thetruckstop.us/forum/forumdisplay.php?f=8

they are very very good with that engine at this site
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Old 07-07-2010, 12:15 AM   #3 (permalink)
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im pretty sure its a low pressure return line, lmc truck sells them but they are chinese and they dont cost alot.

take one of your original lines and cut it. see if there is any sort of fiber brading in it, if not then i would think vacuum line would work.


hell just unplug one and turn the truck on, if a massive jet of fuel comes out then its prob a pressurized line, if not then ya low pressure.
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Old 07-07-2010, 04:29 AM   #4 (permalink)
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check with the local auto parts or online dorman makes a kit for these engines with new lines and caps comes with caps also. You may check with kennedy diesel or advant salvage. I've used the dorman parts with good success.
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Old 07-07-2010, 07:05 AM   #5 (permalink)
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Thanks for the replies everyone.
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Old 07-07-2010, 07:48 AM   #6 (permalink)
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Picking up the kit from Napa later. Damn those parts monkeys are ignorant, Ive called three times to each store looking for this and they couldnt figure it out. I had to call and give them the part number and tell them what it was
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Old 07-07-2010, 11:06 AM   #7 (permalink)
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http://www.dieselplace.com/forum/forumdisplay.php?f=20


check that place out for all yer 6.2/6.5 questions. great site and great people with loads of info.

this topic was coverd a few times so a search should show up some cheap lines that will work
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Old 07-07-2010, 11:29 AM   #8 (permalink)
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Quote:
Originally Posted by BadAssEddie View Post
Picking up the kit from Napa later. Damn those parts monkeys are ignorant, Ive called three times to each store looking for this and they couldnt figure it out. I had to call and give them the part number and tell them what it was
dude ill put it this way, this is the first time that guy has ever heard what your asking about. i wouldn't say that he's ignorant in a bad way (cause yes by definition he really is ignorant.) but honestly its your mistake for not finding the part number in the first place. your the one asking a nonspecialist with a specialized question. what did you expect?
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Old 07-07-2010, 01:43 PM   #9 (permalink)
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Quote:
Originally Posted by g-wizz View Post
dude ill put it this way, this is the first time that guy has ever heard what your asking about. i wouldn't say that he's ignorant in a bad way (cause yes by definition he really is ignorant.) but honestly its your mistake for not finding the part number in the first place. your the one asking a nonspecialist with a specialized question. what did you expect?
Good point, I was just a little flustered earlier as the guy wasnt the most friendly and I was in a hurry. I shouldnt have lashed out or put the blame on someone else.

Got the part, in case anyone ever needs this:

6.2 Diesel Fuel Return Line Kit Part #: 904-101
http://www.dormanproducts.com/p-28146-904-101.aspx

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Old 07-07-2010, 06:34 PM   #10 (permalink)
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Quote:
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Good point, I was just a little flustered earlier as the guy wasnt the most friendly and I was in a hurry. I shouldnt have lashed out or put the blame on someone else.

Got the part, in case anyone ever needs this:

6.2 Diesel Fuel Return Line Kit Part #: 904-101
http://www.dormanproducts.com/p-28146-904-101.aspx
it happens, especially when the said part is integral for any further progress in the completion of your rig.
napa always has the books.
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Old 07-07-2010, 06:36 PM   #11 (permalink)
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Presure is not going to be your problem with the hose ... Your going to need a diesel fuel rated ... not all lines are created equal even if it does say gasoline / diesel rated .
The r7 rated hose dose not hold up very well over time ... Your going to want to look for a r9 rated hose .
Try Vulcan diesel products ... they sell a big selection of the proper rated hose for your application .

Just my 2 cents .

http://www.vulcanperformance.com/category-s/81.htm

Last edited by Greguw; 07-07-2010 at 06:40 PM.
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Old 07-22-2010, 12:57 AM   #12 (permalink)
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these things are slowly blowing up on my truck... fuck they leak alot when they go.


anyways to the OP. ha thanks for asking this.

what did you end up doing about yours, where did you go, and how much did it cost. what did you do about the short "plugged" lines.
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Old 07-22-2010, 11:16 AM   #13 (permalink)
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call any chevy dealership there usally pretty good.....the power steering pump bracket got some cracks and was sitting uneven destroying the belt ..i just called and the got the part number it was easy but they wont order it for u
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Old 07-24-2010, 02:57 AM   #14 (permalink)
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Quote:
Originally Posted by Greguw View Post
Presure is not going to be your problem with the hose ... Your going to need a diesel fuel rated ... not all lines are created equal even if it does say gasoline / diesel rated .
The r7 rated hose dose not hold up very well over time ... Your going to want to look for a r9 rated hose .
Try Vulcan diesel products ... they sell a big selection of the proper rated hose for your application .

Just my 2 cents .

http://www.vulcanperformance.com/category-s/81.htm
What he said ^^^ The reason those little hoses are expensive is because they are made of Viton or something similar. They will even survive biodiesel, whereas regular cheap hose will eventually rot away even with plain ol diesel.
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Old 07-24-2010, 05:19 PM   #15 (permalink)
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What he said ^^^ The reason those little hoses are expensive is because they are made of Viton or something similar. They will even survive biodiesel, whereas regular cheap hose will eventually rot away even with plain ol diesel.
so are the doorman ones any good?
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Old 07-24-2010, 11:11 PM   #16 (permalink)
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so are the doorman ones any good?
No idea - never used 'em.
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Old 07-25-2010, 01:20 AM   #17 (permalink)
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No idea - never used 'em.
well i guess im going to find out.
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Old 08-01-2010, 07:56 PM   #18 (permalink)
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I got the dorman ones and they seem to be good so far ( ive only got about 300 miles on them). No leaks and they really helped my hard start issue (along with replacing all the soft line). Sorry about the late response, I havent signed on in a while.

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Old 08-02-2010, 01:53 AM   #19 (permalink)
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Heres a kit from Pensacola Fuel Injection. All they do is disel.


6.2L-6.5L INJECTOR INST KIT

CODE: WD65120

List price: $29.00
Our price : $19.50 Price: $0.00

You save: $9.50 (33%)

NAPA wanted 74.00 for the same kit
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Old 08-02-2010, 11:18 AM   #20 (permalink)
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Quote:
Originally Posted by MUDTOY View Post
Heres a kit from Pensacola Fuel Injection. All they do is disel.


6.2L-6.5L INJECTOR INST KIT

CODE: WD65120

List price: $29.00
Our price : $19.50 Price: $0.00

You save: $9.50 (33%)

NAPA wanted 74.00 for the same kit
i spent 20$ at napa for the doorman kit. 74$ are we talking about the same kit?
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Old 08-02-2010, 05:07 PM   #21 (permalink)
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Qty Fuel Injector Seal Kit
Product Line: Echlin Fuel System

Part Number: CRB 218446

Price: Price
Unit
:
:
87.49
Each





Warranty Limited 12 Months
Warranty PDF




Material Safety Data Sheet There is no MSDS for this item

Application Information: 1994 Chevrolet Truck C2500 3/4 Ton - Pickup
Engines : 6.5 L 395 CID V8 Diesel
Comments: Installation Kit.
Per Car Qty: 8


my buddy runs a disel shop my cost was 74.00
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