Cummins Ceramic Plunger

Cummins isx engine fault codes for the cm871 ecm 2007 2010 engines.

Cummins ceramic plunger. So i called cummins today to see if there was a way to determine if my 2012 isx15 600hp engine. Damaged ceramic plungers can cause severe engine damage. Seized ceramic plunger compared to how it should look. Cummins had a recall to replace plungers and cam followers in these fuel pumps but changed their minds.

Cummins has a rebuild kit there is a two plunger and three plunger pump the kit will work on either. Ceramic got to 4 main so it will need main bearings an oil cooler and a fuel pump. Question is how can debris find it s way to the top end of the engine and into oil passages. You need to seek a cummins shop to perform the inspections of internal engine parts.

The cummins xpi high pressure fuel pump had ceramic plungers until mid 2015. Damaged ceramic plungers can cause severe engine damage. Fuel pump and related oil bypass failures among other common engine platform failures cost cummins 1m per month in 2015. I read that some of the earlier isx engines used ceramic plunger rods in the fuel pumps.

Updating pump head barrel and plunger assembly. The plungers were re designed with steel allow w diamond dust coating. Seized ceramic plunger compared to how it should look. Crankshaft and bearings chewed up possibly cams and rocker rollers as well.

If you have not checked what you have by removing the pump head i would do that asap. Here is the process if the fuel pump tappet rollers or ceramic plunger are damaged see pic perform the following steps install new two cylinder high pressure fuel pump assembly drain the engine lubricating oil and remove the lubricating oil filter. Fault 559 injector metering rail 1 pressure. The ceramic plungers fail and so are the rollers.

Mr hagg and others here are stating the life expectancy on these pumps is roughly 300 000 to 400 000 miles. It was cheaper for them to buy a few motors than fix the problem. Instruction repair is provided when ceramic plunger s are either fractured or damage to roller tappet assembly then repair action will apply. Also replacing old brass bushing tappets with new hardened steel type.