3406C Engine Overhaul

Well, I don't know much about your particular motor... But, when I in framed my ISX, when setting the head there is a plug that has to be removed from the old head and installed in the new head. I have heard of more than a few shops neglecting to do this, the results sound like yours.

 

@GrapeApe @superbhauler @DieselTech_Aus
@Heavyd

 

This was an external plug, the plug was on the underside of the head if memory serves me right, along with two on the side. We set the head and I am standing there thinking, did I put that plug in? I did... Not something you want to forget.

 

Culprits, rolled liner o-ring top or bottom ones. Bad head ( I've seen them bad straight out of box) deck isn't level on block or head. Liner flange cracked, did you check oil cooler or replace it at overhaul ? Cracked block around the area of #5 hole.

 

Oh I can only imagine... I have heard more than a few horror stories getting parts since Cat got out of the class 8 market. And crap parts too... I was down at Haggai's shop, and there was talk of bad parts right from Cat. Jerry was having fits with a few motors he in framed due to the poor parts quality. And the parts were direct from Cat.

 

Were they actual CAT parts or their CAT Classic parts? Everyone I talked to says stay clear of the classic parts unless its for something antique that you take on and off a truck twice a year for shows.

 

I don't know which parts he was using, but they came from the local Atlanta area Cat store. He was having issues with the pistons, they were used, and mismatched. Yes used, I don't know how you would reman a piston. The heads were an issue too, like Superhauler stated, machined to an inch of their life, not much left and issues regarding level of the head and what not. And these were not cheap parts, I think it was what, the platinum kit? I forget how much he said his cost was, but I remember it was quite a bit more than my ISX kit, by quite a bit, and the parts, like I said, were questionable. Just going by what he, Jerry had stated. Jerry got it all figured out, but not very happy about the entire episode. His name goes on these motors, and I can't blame him for being a bit ticked off.