cat twin turbo question

yes it is normal, as long as its not leaving a big puddle of oil from the blowby tube it is fine, how many miles are on it? get the warranty history pulled from cat also.

 

Alot of blow by is normal for this motor. Cat sells a kit for these motors to solve some of the oil issues with the blow by, my motor has it but i still have blow by and some oil comeing out but not nearly as bad as it was.

 

Are you talking about the catch tank they install or something else ?

 

If it's never been overhauled figure that in the price of the truck, because that blow by is most likely a broken ring.

 

The only way to say if this motor has excessive blow by, is to put it on a dyno and measure the amount of blow by under full load. These engine will huff a considerable amount of blow by while idling. The engine rings are designed to work against cylinder pressure and seal the blow by off under load. CAT has had many complaints about excessive blow by on these engines. CAT also came out with a catch can/oil separator arrangement to install on the crankcase vent tube to catch the excessive oil and return it to the oil pan

 

I presently own a '06 t600 with a c15 twin turbo. love it. it has blow by but not enough that you would have to add any oil in between you reg interval changes. It does however collect on the steering axle in the winter and then make a mess in your shop when it thaws. making sure they spray axle well when washing truck alleviates this. again great engine great fuel mge.

 

Yes the catch can.

 

So not true. The twin turbo Cats are known for having alot of blow by. The only wat to know for sure is to put it on a dyno.

 

can give you the bills and serial numbers off 2 06's and 1 07, all 3 before 350,000 miles, all had broken rings, sir it is true. you may be one of the lucky ones, but i know without a doubt