240D Lift Pump Work

I had troubles with my 240d stalling out. I changed the filters, but couldn't get the air out as the hand primer pump wasn't working. I figured it was time to take a close lock at the lift pump.

Category:

Autos & Vehicles

Tags:

• diesel
• lift pump
• mercedes
• 240d
• fuel
• repair
• check valve

[beatnic50]

I did empty the tank and pulled the screen/plug. The screen had goo on it and I soaked it in carb cleaner for a while. It was experimental as I wasn't sure it wouldn't eat the plastic frame. It didn't and I put the same screen all cleaned up back in service. I got a project in mind for a home built screenless plug with 3/4 inch pipe threads. I'll make a video of it.

[hoppes9]

Fancy tank! I've used two fuel hoses into an empty juice bottle.

[beatnic50]

@hoppes9 You drive it like that? This way I can even get it off the ramps without dumping fuel all over. I've run it around the block with that tank.

[56CrownVick]

Is this the same Mercedes that you modified the heat and air conditioning controls?

[beatnic50]

@56CrownVick No, that car was on my station wagon which is a 300TD. I'm having fuel problems with it too so it will be next on the ramps. I think I got some bad fuel. BTW I just threw the valve I put on the heater hose to the winter open position. Also there is a little piece of plastic which uses throttle position to control the tranny via a vacuum valve, well it's worn out so the tranny is shifting hard. I will try to make that piece as I've heard they aren't available. Another video!

[toddyvol]

Did you find any trash in the tank? Also, is the fuel screen at the tank gummed up? Great video!

[hoppes9]

@beatnic50 Yes, actually! It snugs down behind the washer bottle and doesn't really move. The hoses fit tight through the suitably modifed cap. I also used it to do a diesel purge last time I changed the filters.