5.2 engine minor rebuild

A6 All/ S6 All
#1

Hey guys I recently bought 5.2 engine with 80k miles i plan on putting it into an s8 and since i have the engine out i figured i might as well change some stuff. I plan on changing all the tensioners with INA and timing chains with iwis. I will also change the cradle gasket and whatever obvious gaskets like the around the engine that I can get to.

Is there anything I should specifically change since I’ll have the timing cover off since I’m at that point? And is there a oem silicone i can get instead of getting the audi one

#2

I would change rocker arms as they prone to fail with age and valve joints too. I have replaced my engine due to a rocker arm failure…

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#3

I definitely thought about changing them but they are pretty pricey. I’ll definitely keep it in mind because then again whoever used that engine before I have no idea if they took care of it or neglected it which why I’m even bothering to change the timing

But so far I have 2 s6 running well they are both at around 130k

One of them I pulled engine out when I was 16 and changed the tensioners and gaskets at 70ish k

And the other one I bought from someone with 90k with nothing done major but was maintained well and is still running well.

I do change the oil on both of them every 5k

This s8 will be my 3rd v10

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#4

Is there anything else I should change that isn’t too expensive?

#5

By cradle gasket, do you mean the upper pan gasket? If so, and you’re getting that far, wouldn’t it be at least worth it to pull a Rod cap and see how the bearing are? I’d pull a cap off the front or back rod as they will normally have more wear than one in the middle.

#6

Sorry I mean the inner valve cover gasket. The one where you have to remove the cams

#7

Oe silicone is Loctite 5970

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#8

Just have to order one more tensioner and timing chain and some lovely annoying bolts and i can start rebuilding the engine

Also i forgot the mention the transmission that’s already in this s8 has about 180k it definitely seemed fine. Should I just leave it for now and worry about it another time?