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Pre-oiler system for Monarch 8.3 Cummins

This topic can be found at:
https://www.barthmobile.com/eve/forums/a/tpc/f/3431087061/m/7873924697

10-05-2021, 07:11 PM
Steve VW
Pre-oiler system for Monarch 8.3 Cummins
Return line to the engine block with inline check valve.


10-05-2021, 07:37 PM
Steve VW
I do not have the power connected yet, but I wanted to test the system. I hotwired the pump for a few minutes to test and check for leaks. It primed itself and fed pressure to the engine, it works well.

The pump shows about 15 psi on the gauge. The pressure jumps up instantly when the engine starts. No more dry starts! Thumbs Up

So far I am very happy with the system. Still need to connect wires to run a switch forward to the driver. I will install a power relay near the pump.


10-05-2021, 07:40 PM
Duane88
Will and way, looks great Steve! Nice to work on improvements rather than repairs, makes one feel like there is more than just the necessary in our world.


1971 24 ft Barth Continental
P30 chassis
350 engine
10-23-2021, 09:55 AM
Pirate19
This upgrade made my long wishful to do list - very impressive.

In the meantime, as a alternative, for engines that are idle for extended periods of time, can anyone suggest what can be done to mitigate the "dry" start-up wear?


'92 Breakaway
Cummins 190hp, No Modifications
Allison AT542
Floor Plan 30-BS-11B
9205-3798-30BS11B