Engine Block, Cylinder Liner Sealing Area Damaged

Not much to go on.

My crystal ball says, "have it welded and refinished".

Here we have an example of incomplete and imprecise information. The inspection of this damaged engine was what kind of an inspection? Was this a visual inspection by Percy Dovetonsils?

Was the inspection instead a more sophisticated porosity, magnetic or other engine crack test that revealed no other damage.

If you truly have no other damage then my question would be if the sleeve could be replaced instead of repaired.

Depending on how critical your back reliability requirements there is also the question of replacing the whole generator assembly instead of repairing this. As you can tell, not only can I not see the damage from here but it is not my money that you would be spending.

As other men have noted, you need to provide more detailed information. Some blocks in this range are cast, some are a mix of cast and structural steel (such as EMD). Some cases would require a build up (welding) and machine to tolerance, other cases bore and insert... Yes machining can almost always be done in place, depending upon the exact location and engine type, further dis-assembly may be required to gain sufficient space for the repair to take place.

Tim

contact a company that specializes in diesel repair work. these guys can usually repair this type of damage. they might even be able to repair it on site.

What is the problem in replacing cylinder liner?

Judging from the post, this is a wet liner. If this is the case coolant circulates the block and comes in direct contact with the liner in certain areas.

If my assumption is correct the poster has a problem with a machined area where you would typically have o-ring seal of some kind.

i can't help myself. who was the idiot who caused the "accident"? and have you been fired yet.

Okay, people thanks for all the ideas. We have this DG up and running and have been tested for over 50 hrs now on 75% load.

We actually went for the major overhauling of the engine ourselves, only procured the parts from the OEM.

I am preparing a Failure Analysis report along with all the repair and overhauling details, if you are interested let me know and i'll drop in a copy for you.