Day 60 ...Day 10 at Cummins shop

Monday the head was checked. The gasket and head were both good. So now, check the oil cooler for a leak. Of course, the oil cooler has to come off to be checked.
                                      The oil cooler was on the right under the exhaust manifold.

The oil cooler held 60psi all day. Not the problem. Back to #4 cylinder that showed some rust. Remove that cylinder liner and check it.

It takes a special tool to remove the liner. So I loaned them mine.

#4 removed, of course the piston had to come out first.

#4 liner

This is called "Cavitation Erosion".

The cavitation erosion is caused by excess in harmonic vibrations of the

engine and in some cases by loose fitting liners that result in a fast

formation and implosion of small vapor bubbles within the coolant which

attack the cylinders’ liner wall. The vibration in combination with collapsing

bubbles produces an erosive effect over the surface of the liner’s exterior

face. This occurs as the piston moves up and down within the cylinder

causing vibration especially over the area of thrust in the cylinder liner.

We can say that the wall of the sleeve, which comes in contact with the

coolant, quickly moves inwards and outwards striking these vapor

formations. During this process, tiny bubbles are formed that implode or

collapse violently producing shock waves against the liner’s wall. The results

of these implosions at the impact area of the liner’s wall have been calculated

to reach over 10,000º F with pressures of over 10,000 psi.

With this finding it was obvious all the liners had to come out.

This one got stuck 1/2 way and took a lot of valuable time.

By the end of the day, all the pistons and liners were out. All the liners looked similar to #4. New parts were ordered, be here overnight.

The blue you see in the left 3 cylinders is cement floor under the bus.

Sure enough, next day at noon they had 6 new cylinder liners.

Only problem.......they didn't send any rings.

Oh well, they will be here tomorrow.

The next day was Friday and the sun showed up for the first time all week. With cabin fever already being a problem. Heidi found an article on-line where we could go watch for Baluga Whales.

So we pack the cooler and we're off.

No whales but sunshine and nice scenery.

There wasn't snow on those mountains last week.

When we returned, all of the liners were in. We made arrangements for some overtime on Saturday and got 2 mechanics to come in.

By noon the 300 lb.+ head was on.

And all the valves and valve cover.

And the fuel injectors and jac brake

They also finished going through the air intake system. Finished at 8:00PM.

Monday, the cooling system, alternator,  and ?

We might be out of here Tues!  Maybe.