Cummins Insite Injector Test CM870

[Bulljammer]

I've watched the video that Rawze did on the injector leak test for the 2250 where he is checking the loss of pressure in the rail system. How does the same test differ for the CM 870 and is the allowed pressure loss in 60 seconds the same?

[Marajin]

(02-23-2016 )Bulljammer Wrote:  I've watched the video that Rawze did on the injector leak test for the 2250 where he is checking the loss of pressure in the rail system. How does the same test differ for the CM 870 and is the allowed pressure loss in 60 seconds the same?

Nope, the CM870 is not common rail. It is a completely different system. The pressure should be mechanically regulated to about 300 PSI max.

[Hedley]

this is the correct video for your engine Bulljammer.

https://www.youtube.com/watch?v=Wu_WN8BA-LA