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4m41 Injection Pump Inlet/Outlet
Hey guys need some help confirming the inlet and return nipples from the injection pump.

Image

On the pump schematics I have it shows the suction nipple as circle ‘B’
And shows the return nipple as circle ‘A’

Can anyone help confirm this? What i find confusing is the suction nipple ‘B’ is 10mm and connects to the outlet of the fuel filter which is 12mm?
Also the return nipple ‘A’ is 12mm which connects to fuel tank nipple which is 10mm?

Any input is appreciated
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Re: 4m41 Injection Pump Inlet/Outlet
see attached. It may help
Attachments:
Diesel pump and timing.pdf
(781.93 KiB) Downloaded 395 times
11C.pdf
(1.92 MiB) Downloaded 342 times
11B 4m41.pdf
(2.52 MiB) Downloaded 324 times
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