can anyone tell me what the fuel line cigar hose is supposed to do.My 1983 300sd doesnt have one PO apparently took it off or it never had one

Moderates the severe pulses created in the injection pump. Also it is thought to reduce noise.




Looks like the vast majority of these cars run well if it is not present. Only one case that I am aware of that it made a difference in running.


I suspect it was in combination with perhaps another issue present but no attempt was made to locate it. This also may have not been the case.




Anyways putting the cigar hose back in did cure the issue. The car ran differently depending on the level of fuel in the tank without the hose. Remember this was the only case I ever remember.

I love reading the post titles and formulating a mental response before clicking on the post...

In this case it was - cigar "Thanks, don't mind if I do"

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Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica

I had normal hose, then swapped in cigar. noticed zero operating difference between the two.

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Andrew
Montclair, NJ
--------------
1982 300D Turbo
120k
Petrol Blue Green

If you wrap your hand around the cigar while it's idling, you can feel it's alive! I was told the cigar hose prevents potential fatigue of the under the car metal fuel return to tank line from the strong pulses.

__________________
85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

This comes up every once in a while. Here is a few threads from several
years ago.


What does the cigar hose do....


Cigar hose


What does the cigar (fuel)hose do?


Importance of Cigar hose
.
.
.
.

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

After reading through these in an effort to learn whether I should put a cigar hose in my 39 Studie with 617 I decided that most likely since the builder put rubber hose all the way to the tank that will take care of the need to soften impulses in the fuel line....agreed?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Well the 60x engines use a mechanical lift pump similar to the 61x (different design, but same implementation) and they don't have a "cigar" hose and do have the steel lines under the vehicle. Other manufacturers don't use it either, so I'd assume it's safe to delete.

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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)

Black Sheep:
1985 524TD 167K (TotalDumpster™)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

On the other hand, it'll be an interesting conversation piece at the show-n-shine. Dress it in a braided steel sheath!

Sixto
83 300SD
98 E320 wagon

Like this?



Only problem is I fabricated it about an inch too short, so I have to remove the hose to remove the oil filter housing cover...dohhh

__________________
Current Stable

• 380SL (diesel)
• Corvette C5
• Manx
• Baja Bug
• F350 Powerstroke
• Auburn Boattail Speedster replica

Yes but with the cigar hose flare. Snake skin sheathing will make it really interesting

Maybe you can do something with a 603.960 or 603.971 oil filter cover that's separate from the center tube. The tube is removed first, then the cover.

Sixto
83 300SD
98 E320 wagon