PeachParts Mercedes-Benz Forum - View Single Post

fonzi · #26 05-06-2021, 11:41 PM

Quote:

Originally Posted by Tx93086

There is a check valve under the fitting where the injector lines attach. Earlier in the thread you said that blowing air in the #4 fitting inflated your bottle (sometimes). If the check valve is working properly it should not do that. Also, if the check valve is not sealing you will not get flow through the injector. I recommend removing the check valve and giving it a good soaking/cleaning. Once you take off the threaded fitting for the line, the check valve lifts out, but sometimes they are difficult to lift out. If it is the same as the Porsche, you can make a tool that threads on to the check valve and lift it out.

Ok. I’m back at this car, and I’m now trying to make it run with a correct fuel pump instead of just a gravity feed, and I’m getting no fuel out of cyl 4 and I think you are dead on (as I have thought ever since I read this comment from you). Everything was running rich so that I needed to disconnect the linkage from the IP and open the throttle to get the car to “idle” which is more of a rough run than anything else. I did get it to idle itself briefly today though. Actually was able to walk around the car and see the exhaust smoke. But clearly no fuel on 4.

Old plugs on the left. Brand spanking new plugs on the right after maybe 30 seconds of running or so.

Here’s my rig:
https://youtu.be/fuds4uzNa9k

Edit:
I’ve got a leaking oil cooler that is very annoying. So I think I’m going to swap that with another.

I think it’s also time to address that check valve. I guess I just go digging and pull the check valve out. Right? Do I need to remove the IP from the car? Or just leave it in there and pull the check valve out?