Crankcase pressure

[race7820000]

So I figured since I was this far I would pull crank out of block. The thrust bearing was junk. The bearing is also showing wear on one side. And every main journal were there is no slot connecting the 2 holes were plugged with gunk on the cam side.

The crank turned over fine, didn't feel any drag but that thrust bearing that bad makes me wonder if it's bent. Or maybe the line bore is messed up now. The end play was Def out. The gauge showed.040

[Rawze]

something is definately wrong. That amount of wear is not normal at all.

Also make sure the crank is not being pressed inward by the transmission or clutch assy. It can cause those problems too.


If the truck has an idle shut-down feature, some drivers are known to put a stick on the clutch pedal to defeat it. That can cause issues like your are showing too.

A clutch improperly adjusted where there is never any play in the pedal will do it too.

[race7820000]

I am taking to a machine shop that cat takes there stuff to in the morning. Guy at machine shop said same thing, said sounds like it has foward pressure.

There going to check line bore etc etc, going to take the head in to see if it's rebuildable. It needs new cam bearings anyways. And a cam and cam followers lol it doesn't end. Everything in and on the motor will be replaced.

I get the planning for a overhaul. But in my head I feel like I'm half assing it if I don't get new /rebuilt everything. I guess I can advertise it as pre eld truck and ask 100k for it. Lol jk I'm never going to sell it now.

But the cat platitum kit is still almost the better deal, as it comes with injectors etc.

Hopefully the block is good.

Anyone know of a good place to buy a engine stand that's not 5k? I got everything cleaned up but my old tire engine stand isn't going to cut it when it goes back together. Lol

[Lonestar10]

couple hundred in steel a good welder bammy engine stand.

[Rawze]

(04-24-2019 )race7820000 Wrote:  ...
going to take the head in to see if it's rebuildable.

...

don't make that mistake. you will regret it in 250k miles when you have to replace it again. It will not last.

Always buy new head!!!!!.

[race7820000]

I know you have said that before. The platitum kit only comes with a reman and there telling me I can't upgrade the head to new.

Actually all of there kits are almost reman everything.

I found a place that sells there version of a platitum kit, but comes with everything new including a turbo for 12k the pistons are mahle, alot of name brands.

The head is HDK Which I never heard of.

If I go with a gold kit and then get a new head and injectors, cam, followers, turbo etc I'll have close to 20 in it getting from cat.

There is to many options. I don't want to cheapen the build to were I have to touch it a cpl years down the road but I don't want to over kill it.

I Wish I knew someone that knew cats and have them recommended on what to do.

I ask cat and they sware by there kits. They have strict tolerances they said. But everyone says that.

[race7820000]

They said crank needed welded were thrust bearing rides. They weld then grind it down. I told them I would just get a different crank. Or is welded OK? They said they do a cpl a year like that.

[Unilevers]

honestly cats QC is shi#t these days. I wouldnt use a platinum kit if they gave it to me. I dont trust piston packs either so its a waste.

-Buy a IPD overhaul kit - all new parts and better quality that cats shi#t these days
-buy a new cam from cat
-Buy a set of injectors from CAT/a special someone
-Buy a oil pump, water pump, oil cooler and head from cat
-Immediately send the cat head to the machine shop to check to see if its flat/needed planing
-Rebuild your rockers ~ 35 dollars each to do it yourself and its easy
-have the rods checked
-Buy new headbolts from cat - i cryo treat mine
-Buy new injector hold down bolts
-Get block decked and cut the counterbores
-Use a CAT headgasket
-Buy a new spacer plate from CAT and measure it well
-Get a used crank out of a junker, im not the hugest fan of recon cranks. Get it checked
-buy a new wiring harness from cat for both under the cover and head to ECM
-new 180 degree cat thermostats
-make sure piston cooling nozzles are aligned properly (they tend to get bumped/plugged)
-Get a borg warner turbo as they are cheaper and tougher. S430SX is decent
-Get a 1 piece manifold so you dont have to deal with the dam joiners/seal kits
-change the bushings in the front gear train. Nobody does this and they never get checked
-get a new fuel pump as they get weak over long periods. change reliefs in filter base
-assemble it like you care by hand
-dont be silly and run some stupid c16 file or trim codes or fuel numbers in it.
-fix the air intake piping so you dont dust it again.
-drive truck that gets only 6mpg but sounds and looks cool and runs well.
-laugh at others who half assed theirs and they are broken on the side of the road.

[race7820000]

Perfect! Thanks alot. I'll let u know how it turns out.

And no it's not getting some dumb program
Leaving everything alone as factory.

I just want it to run good and last. That's all.

I checked over the dusting issue. I can't find a hole or tare in anything. We bought the truck a little over a year ago so who knows. But will Def make sure it's air tight.