Olds ticket to 9s... LS swap adventure.

[Tony1968]

Cold at idle? That's not bad... neither high or low. My cars are much higher cold at idle.

I am still wondering why the bearings needed to be touched. The more we do the wider the margin for error grows.

Sounded like a rod knock but who knows especially with good oil pressure 🤔

 

[motorheadmike]

I shimmed the pump, from watching your 4.8 build. I'm like 35 psi hot and 80psi @ 6k too, right about perfect.

What bearing are you referring to? Bottom end when i put the motor together?

Then you are good. Every engine is a bit different.

Yeah, did the factory bearings look off?

 

[Northernregal]

Then you are good. Every engine is a bit different.

Yeah, did the factory bearings look off?

It had a bad crank bearing, it was a warranty take out. I replaced rods and mains, rings, head and main studs. Everything was plasti-gauged and on the tight end of OEM spec.

If I don't find an lifter issue I think its going to come out for an inspection. I need to be sure or my OCD is going to explode. Either way the trans needs to come out for Jakes D1 installation, and I have all winter to get it right this time, actually check all the things and record stuff so I will stop second guessing myself.

 

[Northernregal]

I think I found it...

Both sides of a piston need to be the same height... right?

 

[Tony1968]

Hard to tell. Is it that much out of the hole??? Or bent rod causing it to tilt down?

 

[Tony1968]

Wrist pin trashed or rod separating???
I've never seen that

 

[Northernregal]

Hard to tell. Is it that much out of the hole???

The right (forward) side is about 0.004 in, the rear side is -0.120.

Good old #8, The party pooper of the LS motor.

 

[Northernregal]

Wrist pin trashed or rod separating???
I've never seen that

99.99% sure of bent rod. Contemplating life and eating lunch before motor extraction happens.

 

[Tony1968]

The right (forward) side is about 0.004 in, the rear side is -0.120.

Good old #8, The party pooper of the LS motor.

You gotta pull that one so we can see it!

 

[Tony1968]

Just hoping the cylinder is fine. I've got 8 rods and pistons if you need one