Good News they all have one; Bad News some cannot be taken apart becaue they have a Ball Bearing pressed into them insted of a Screw that can be removed.

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84 300D, 82 Volvo 244Gl Diesel

Finally remembered to check mine, and apparently it is the turbo charged engines that can't be adjusted. Was hoping that this might correct the rough idle and poor fuel economy.

Is there a part number? All I found was this: 1985 Mercedes-Benz 300TD Base Wagon - Fuel Injection - Page 1

Thank you all in advance!

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Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.

Not exactly.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.

Thank you for the reply!

It doesn't have a 14mm nut in the 17mm banjo, so is it adjusted by shimming?

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Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.

If you have one with the pressed in Ball Baearing that holds the Spring in in theory you can remove the Ball Bearing and stretch the Spring.

The bugger is getting the Ball Bearing out intact.

I know what would work to get the Ball Bering out but a Tool Wolud need to be made and that is too much trouble.

Do an internet search for an Interial Bullet Puller and you what would work.

Mine is a hollow plastic Hammer that has an opening in the end that holds the loaded Cartridge you insert the Cartridge and lock it in and swing the Hammer. When the Hammer strike the Brass Case is trapped but inertia pulls the Bullet out of the Brass Case.

Easier to go to the Junk Yard and get one you can take apart.

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84 300D, 82 Volvo 244Gl Diesel

Thank you so very much for the help!

Opa had a cartridge station he made and finally checked: only has the tool for the cap. I rather just buy new than spend time I don't have. Also, there are no junk yards with older Mercedes.

However, the bypass is no longer available!

So is there any other alternatives?

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Current fleet:

1985 Mercedes-Benz 280TE - Waiting for heart surgery.

1985 Mercedes-Benz 300TDT - Rear ended 23 September 2016 and now looking for a new home.

1979 Mercedes-Benz 300TD - Parted out.

1964 Volkswgen Beetle - Vater's since September 1968 and undergoing a restoration.

1971 Volkswagen Sunroof Squareback with F.I. - in need of full restoration.

1971 Volkswagen Squareback automatic with F.I. - Vacationing with her caretaker until he is in better health.

No, I was not suggesting it was worth the trouble to make a Tool to remove the Ball Bearing.

Where I used to work the Cummins PT Fuel Injection Pumps had a Ball Pressed into the Throttle Shaft to prevent somwone from chaniging the Shims inside.

There we heated the Ball bearing end with a Propane Torch and that softened it enough for the Ball to be drilled out. That is the most available way to get the Ball Bearing out.
But, where I worked We had a supply of replacement Ball Bearings to press back in and there is none easily available for the Fuel Pressure Relief Valve.
I can't think of any place where you can buy only one Ball Bearing.


One of our Members modified the Fuel Pressure Relief Valve so it could be adjusted to what ever pressure you wanted but I think not many People were interested in Buying one from Him.

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84 300D, 82 Volvo 244Gl Diesel

Yesterday I replaced the spring inside the Fuel Bypass Valve with this puppy:



Ace Compression spring #144
1" x 15/64" x 0.028"


It seems to work great fuel delivery-wise; but my only concern is idle fuel flow through the bypass is severely diminished, and I know the IP uses the fuel for cooling...

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72% 1992 FJ80 + 17% 1983 OM617 + 10% 85/87/92 4Runner + *Eclipse/GMC = 100% Truck
(*<1%)
Build Thread: http://forum.ih8mud.com/threads/a-humble-fj80-om617-r151f-swap.759554/

It has been discussed many times, that the spring is a certain type and sadly we have all been down the road of searching the bulk parts bin for a replacement spring. Good for an emergency but I would stick with the OEM one.

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