Semi-Tractor "Tractor" pulls

Being as they were in the same general area I wondered? Did the same company make them for BCIII's also. It was around 2004.

 

Ask owners of CM2250 ISX that had to have complete engine replacements due to ceramic plungers shattering in high pressure fuel pumps and trashing the whole lubrication system on the engine how great ceramics are! Mack used them in there intake and exhaust cam followers and I have seen many of them disenegrated wiping out cam and making mess of lubrication system. Ceramics don't tolerate impacts at all. They have their applications, don't personally think internal combustion engine is one of them. Coatings work only if done properly.

 

You throw out instances of failure yet you dont mention the ceramic plungers in N14 injectors and links used in STC injectors that you never hear of failing.

We will disagree on coatings, a coating company will never heat a piston up enough to simulate the expansion of the material at operation temps.

 

The only heavy piston they offer are for the 3406, they have some smaller engines but no other heavy duty.

 

There are even protective paint coatings that are ceramic based these day, and likely work extremely well as they aren't subject to the thermal expansion like pistons would be.

 

I think they collect the the smoke in a filter system now believe it or not?

 

Yes Celect injectors use ceramic metering plungers and check valves and work great with low failure rates. But if a failure occurs it is contained within the injector, not allowed to freely enter lube system and be ground by geartrain and enter pan like ISX. The series 60 used ceramic rollers and they seemed to hold up decent. Ceramics do not like impacts point blank. If you drop it, might as well through it in the garbage can. If you look @ a Mack service manual, it strongly cautions/warms if rockers are bolted down without completely backing off lash adjusting screws, you will fracture a roller. That is why engine braked and internal EGR macks have spring loaded push tubes. Celect injectors have zero lash in the valve train and Series 60 are the same way. If memory serves correctly HPI-TP injectors used titanium plungers if I remember correctly... Very possible I am wrong. As far as coatings, I like the OEM one of phosphate for intial lube in rings lands and graphite on skirts. I wouldn't recommend a company in PA to coat your BC piston crowns. Not really needed these days with steel monotherms anyway.

 

Rawze dyno'd a stock Cummins 871 with one of his tunes, it put out 800+ hp to the ground. Another mechanic, Unilever, helped build and TUNE another CM-871, 1,500 hp + on the dyno.

Rawze.com: Rawze's ISX Technical Discussion and more - CM871 Engine cycle...

For what it is worth.

And not something I would want or need out here on the road.