95 E300D What's the best method to remove small hose from an injector? - PeachParts Mercedes-Benz Forum

Texasgeezer · #1 01-20-2018, 02:12 PM

Fedex just delivered my pelicanparts order. I'll be replacing the return hose that goes from the top filter ( black plastic with banjo fitting for injection pump ). One of the hoses that attach is the small woven injector return hose. I've received new Mercedes woven hose.

Question: What is the best method to remove the small hose from each injector?

Supposedly if it's removed by cutting it can be nicked and then leak. Also some threads say the small fittings are pressed into the injectors, so I don't want to start tugging on them.

sixto · #2 01-20-2018, 02:41 PM

Cut but don’t cut through. Or cut from the end of the hose so you don’t nick the barbed nipple end. Once there’s a break, use two needle nose pliers to tear the hose off the nipple without applying force to the nipple. It’s easier to bend the nipples than pull them off.

Alternatively you can cut radially below the barb. If you can get the section of hose above the barb to turn, it’ll likely pull off easily. Then cut the hose below the barb vertically. There’s little risk of leak from nicks below the barb.

Sixto
98 320s sedan and wagon

Diseasel300 · #3 01-20-2018, 03:22 PM

I've had good success by pulling on the fuel line gently while swinging my hand in a circular motion. It seems to break the bond, then it pulls right off. If the lines on your car are rock hard it may not work, but if there's any flexibility still, they should let go pretty easily.

torsionbar · #4 01-21-2018, 10:29 PM

Quote:

Originally Posted by Texasgeezer

Fedex just delivered my pelicanparts order. I'll be replacing the return hose that goes from the top filter ( black plastic with banjo fitting for injection pump ). One of the hoses that attach is the small woven injector return hose. I've received new Mercedes woven hose.

Question: What is the best method to remove the small hose from each injector?

Supposedly if it's removed by cutting it can be nicked and then leak. Also some threads say the small fittings are pressed into the injectors, so I don't want to start tugging on them.

This:
http://www.peachparts.com/shopforum/3781067-post32.html

funola · #5 01-21-2018, 10:49 PM

You don't need that Mercedes source special return hose pliers, another special tool to clutter up your tool box. Long nose pliers will work equally well if not better.

Take the long nose and grab the side of the hose that is around the barb, you are essentially pinching the braid and stretching it, releasing its grip on the barb, Turn it back and forth and the hose wiggles out.

ROLLGUY · #6 01-21-2018, 10:55 PM

Quote:

Originally Posted by funola

You don't need that Mercedes source special return hose pliers, another special tool to clutter up your tool box. Long nose pliers will work equally well if not better.

Take the long nose and grab the side of the hose that is around the barb, you are essentially pinching the braid and stretching it, releasing its grip on the barb, Turn it back and forth and the hose wiggles out.

Yes, this is the way I do it and it works every time.

vstech · #7 01-21-2018, 11:00 PM

On all the return lines in every car I’ve worked on, the Best Way is with Long reach needle nose pliers.

I grab the side of the hose at the injector, pinch tightly, and the hose splits off the nipple.

I don’t ever pull on the hose.

tdoublenastywitit · #8 01-22-2018, 07:30 AM

or spend $40 for the $2.99 harbor freight needle nose pliers that kent took a grinder to....

jake12tech · #9 01-22-2018, 09:19 AM

Just rip them off and buy new. I always replace them when I don't have any idea when they were done. They are very cheap. Needle nose to take them off the barbed ends. If They re not flexible they'll most likely break.

tdoublenastywitit · #10 01-22-2018, 10:05 AM

I think he is planning in replacing the soft lines but I'm somewhat assuming. Hes not worried about damaging the lines, he is worried about damaging the barb fittings that hold the lines on.

torsionbar · #11 01-22-2018, 06:50 PM

Quote:

Originally Posted by tdoublenastywitit

or spend $40 for the $2.99 harbor freight needle nose pliers that kent took a grinder to....

Not sure what you're getting at. Kent's pliers are not $40, not even close. Yes they're made from an off the shelf tool. I guess if your time is worthless, you could spend hours grinding and bending and go through a dozen pliers in trial-and-error mode to get them just right. No thanks, I have better things to do. I'll gladly pay the $22 he's asking for a great tool that just works.

Father Of Giants · #12 01-22-2018, 06:55 PM

They also come off a lot easier when the engine is at operating temperature, the Diesel fuel won't burn you. When you yank it off wear safety goggles! I've had diesel splash right on my lens.