Va_Mike
Full Access Member
The Mr gasket 105p cam with a pressure regulator that has a bypass. Would you use that one and hook the bypass up to the existing return system? Or is there a better regulator to use?
I'd try what you have on hand and plumb it into the existing returnThe Mr gasket 105p cam with a pressure regulator that has a bypass. Would you use that one and hook the bypass up to the existing return system? Or is there a better regulator to use?
I don't doubt at all that the metering valve could be sticking. The truck has what I assume is a mostly full tank of old diesel that I have added a fair bit of power service cleaner to. It did start running slightly better after the ATF treatment through the fuel filter. Perhaps I will pull the access plate and clean the inside out and then get a gallon of ATF and hook it up directly and let it run through and then sit for a day or two and see what happens.I believe this is the metering valve sticking from lack of lubrication. Fuel additive should fix it. You should always run additive as modern diesel fuel lacks the Sulphur that these injection pumps were built to use as lubricant.
Sounds like good stuff.I know a lot of people like ATF as a cleaner, but I’ve heard very good things about this product:
Liqui-Moly Diesel Purge Injection Cleaner (500 ml 16.9 oz set of 2 https://a.co/d/h7ZNCN8
The best way to use it is to run feed and return lines to a container, and let your engine run on pure diesel purge until it’s all used up.
I picked up 4 cans from my local Napa this evening. I am going to run 2 cans through and see what the recirculated fuel looks like at the end, and if it is not fairly clean then I think I will empty the dirty cleaner and run one of the other cans and then let it sit for a while. Probably not over night because I would be worried about how strong this cleaner may be and I don't think I want it on all the internals for more than perhaps a few hours at a time.Sounds like good stuff.
I wonder if there would be any benefit to having it sit overnight with it as often recommended with ATF. Fill the fuel filter and run it until the engine tone changes then shut it down and sit overnight.
Can't hurt. Or better to just run it?
I ordered the 2 cans deal. Thanks.
Good thinking. If it really works good then it must be strong....let it sit for a while. Probably not over night because I would be worried about how strong this cleaner may be and I don't think I want it on all the internals for more than perhaps a few hours at a time.
I'll second all of this although I have not watched his pump or bypass fill a gallon jug.I would put the regulator after the filter right before the IP and tie the bypass return into the towards tank line not through the caps. Depending on your pump I can fill a gallon jug in under 60 seconds off my bypass line. You want to minimize fuel through the caps. They are there for injector bleed off.