Need help identifying a Cat 3406

Smokin cat is correct.

That's my vote!

Looks just like my 8PN. Well, mines way purdier.

 

The only parts that would have needed to be changed to make that C model from a PEEC to a Mechanical would have been the Pump the Advance on it was still internal in the Pump. All PEEC did was allow the Fleets to set up what the top end could be and allowed Cruise Control. My dad drove one in the early 90's.

 

Cat called the electronic C a PEEC and the manual pump C a ATAC Both were available as late as 1998 I believe.
The C is actually a better motor than the B. It came with a better turbo and it has bigger main bearings. The naysayers like the B because the C has centrifical timing adjustments that make it fall on it's face @1800 RPM (for emmissions). Hence the forementioned "cone" cover on the lower driver side front.

 

Main bearings are no different between any of the 3406 series and C15/16/18 engines. I think what you meant to say was wider rod bearings.

Also the timing advances work in the same principle between both, and accomplish the same action, just the later ones rely on oil to do the advancing and return of weight carrier. The timing did become more and more retarded as the newer engines came out to meet emmissions. These engines respond well to some pump mods and advancing the timing a little.

ZX, the liners are wet, they have o-rings that seal them to the block.

 

I had this problem on my last semi. I sold it and moved on. Always had to re-order parts every time it went into a shop, it was a headache i was very glad to get rid of.

 

Everything on you motor looks identical to the one in the 94 Pete I just bought. Mine is a 4CK. So thats a C model? I have cruise switches on the dash but they dont work. How do I tell if its converted? Also what is that little black box. I was looking at mine just a few hours ago trying to figure it out.