13 hours ago, BoostedG6E said:

Engine is currently out for a few things in preparation for a g42, however the only issues we have come across has been the following.

-Crank has a few cracks in it, unsure how long they have been there, the noise was their from day one.
-Genuine tensioner seemed as if it was not holding enough tension on the guide and the chain had a slight movement to it.
-Two lifters where stuck in and had to be forced out.

Other than that the engine looks good so take what you will from that regarding the sound we are hearing, but as puff said most of the sound is from valve train/piston to bore clearance. I’ve thrashed the car and am confident that it’s all good, however if after getting new lifters and a new genuine tensioner and unfortunately a new crank fixes the sound I will definitely let you know if it fixes anything.

Have you considered getting the pistons coated before you put them back in? Might be a way to get the PtW clearance a bit tighter if that's the issue.

Funny you say that🤣, Just sent them off today to get coated.

Any updates on the build?

Nah nothing yet, Few delays. Hopefully engines finished soon.

Has anyone had experience with spool rods, Have taken the Gudgeon Pin sleeve out and have this rough finish. Is this normal or should this been machined?

The rods come with the bush installed and that gets honed to suit the pin. You would only machine or hone the small end of the rod to suit the press fit for the bush. Don't touch it if the size doesn't need to be changed. Considering you already pulled a bush out of it, it is unlikely you will need to touch it.

Okay perfect thanks for the reply!! Turns out the clearances where to lose so have had to get a new set of bushes and machine it all up to suit.

Any updates on this build? Curious as to how the coated CP pistons went.

Engines going in tomorrow mate, won’t be a few weeks till it’s going as need to get some piping done.

Any updates on this build? Curious as to how the coated CP pistons went.

Hey mate, all up and running and the sound is definitely gone now.