Stock fuel pressure
Stock fuel pressure
I'm trying to find what the stock fuel pressure for the lift pump is for the w123 om617 turbo motor is. I'm looking into putting in an electric fuel pump. For what I'm reading the suggested pressure for electric pumps is 30psi, and upgrade the rubber hose to handle the pressure. My goal is to replicate the stock fuel pressure a set I'm running a stock injector pump. I was looking for a rebuild kit for my stock one, but some of the parts are NLA. Also a replacement lift pump is not cheap.
So back to original inquiry, what is stock pressure for the lift pump, and flow rate?
1987 Mazda B2200 "outlaw" **planning phase** Chevy 283, Power Pack heads, Edelbrock carb and intake, turbo 350 trans
1985 Mercedes 300D stock for now
Hello,
I'm trying to find what the stock fuel pressure for the lift pump is for the w123 om617 turbo motor is. I'm looking into putting in an electric fuel pump. For what I'm reading the suggested pressure for electric pumps is 30psi, and upgrade the rubber hose to handle the pressure. My goal is to replicate the stock fuel pressure a set I'm running a stock injector pump. I was looking for a rebuild kit for my stock one, but some of the parts are NLA. Also a replacement lift pump is not cheap.
So back to original inquiry, what is stock pressure for the lift pump, and flow rate?
1987 Mazda B2200 "outlaw" **planning phase** Chevy 283, Power Pack heads, Edelbrock carb and intake, turbo 350 trans
1985 Mercedes 300D stock for now
X Double Dot
03-28-2017, 11:12 PM #2Bumping this thread as I'm curious as well. I know it's a different engine but its a starting point at least. I'm currently putting a OM606 turbo into a previously FI gas burner that used a 50 psi "lift pump" for the FI system. I was planning to add an adjustable fuel pressure regulator inline to lower the electric pumps pressure. That said I was just planning to lower it to ~10psi or so and just see how it ran, didn't actually know what was ideal for these Mercedes pumps
Higher the pressure the better though as long as you don't start having leaks
1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km
1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD
Scratching my head here so don't quote me on this but think idle was about 0.8bar/ ~10psi and running is 1.4bar /~20 psi. Hopefully someone comes in with the FSM specs
Higher the pressure the better though as long as you don't start having leaks
1978 300D, 373,000km... OM617.912 with a Holset HX30W, 7.5mm IP, 711.113 5 speed (project car, 7 years off the road and counting ;/)
1977 250 270,000km (parts car)
1977 300D (ex 280) 500,000km
1981 240D 498,000
1975 HJ45 ???,000
2001 2.8TD Rodeo 4x2 - 456,000 - DD
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