Bob, If you are draining the tank you may as well put in new strainer and a filter. Dealing with that fuel mess is half the job. Lots of problems can be created by the corroded or even worse - broken up strainer.
Pump can only handle debris smaller then the strainer will allow to pass. Remember the main filter is placed after the pump. I’ve done that several times and in my opinion is best to do it all at once. Parts are fairly inexpensive so get them, including the outlet hose. I see if I can get you the diagram.

 

Yes but where is the strainer? I know where the fuel filter is and can change that easily. Thanks so much for your response!

Bob, If you are draining the tank you may as well put in new strainer and a filter. Dealing with that fuel mess is half the job. Lots of problems can be created by the corroded or even worse - broken up strainer.
Pump can only handle debris smaller then the strainer will allow to pass. Remember the main filter is placed after the pump. I’ve done that several times and in my opinion is best to do it all at once. Parts are fairly inexpensive so get them, including the outlet hose. I see if I can get you the diagram.

 

It's 22mm. If you don't have a 22mm Allen socket you can use a 13/16 sparkplug socket with extension as shown here.

The strainer/filter is what you are taking out when you remove the 22mm plug.
Will

 

It's what you are taking out of the tank. Mercedes Fuel Strainer Bottom of Fuel Tank Genuine Mercedes A1114700686 111-470-06-86 111.470.06.86 111 470 06 86 | Pelican Parts
Will

 

It's what you are taking out of the tank. Mercedes Fuel Strainer Bottom of Fuel Tank Genuine Mercedes A1114700686 111-470-06-86 111.470.06.86 111 470 06 86 | Pelican Parts
Will

Sweet. Do you know what size hex fits that hole? I bought a 16mm and it was way to small? Thanks!

 

Your not getting a Vapor lock are you ? My W115 started doing that for no reason especially on a hot day . Let it rest started right back up. Might not do it again for weeks and then could happen the next time I drove it. Insulated the fuel lines in the engine bay . Problem solved Just a thought

 

Hey brother! I really don’t know what’s going on!! I’ve replaced almost everything except the trigger points. And now the fuel strainer. What did you insulate the fuel lines with? Thanks so much!

 

22mm hex is what you need to take that plug out

Here you go;

https://www.amazon.com/Titan-Tools-15622-Drive-Socket/dp/B004W82PGS/ref=sr_1_2?keywords=22mm+hex+bit+socket&qid=1659227204&sr=8-2

 

22mm hex is what you need to take that plug out

View attachment 2773077

Here you go;

https://www.amazon.com/Titan-Tools-15622-Drive-Socket/dp/B004W82PGS/ref=sr_1_2?keywords=22mm+hex+bit+socket&qid=1659227204&sr=8-2

Ok, thank you!! I ordered it thanks to your help!! I’ve got a question for you. How does that strainer strain the gas? I’m befuddled as to how gas is pushed through that if it’s just screwed into the bottom of the tank? Thanks again!

 

Read this. It will explain how the strainer in the tank works.
Will

Pagoda SL Group Technical Manual :: Fuel / Tank

 

You should diagnose the problem while you are having the issue. You can prove whether it’s a fuel or spark issue by squirting something flammable into the throttle body while the car isn’t running. If that makes the car run for a short bit, then you know you have a fuel ratio issue. If not, then you know you have a spark (or air?) issue.


Are you running the original ignition points? The rider wears down, and when the car is warmed up and idle RPMs get low, the car will stall bc the points aren’t opening up enough to break contact.


Sent from my iPhone using Tapatalk

 

When it shuts off, have you ever removed the fuel cap to the tank. Is there a large inrush of air? My fuel tank vent was plugged and provided me similar issues. No air into the tank = vacuum in the tank = no fuel to the engine.

 

Wow thanks! I saw a utube video on how to repair that problem! I found the filter u der my car so it’s just getting to it!! I’m trying the Blue banded ignition resistor as well!