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Built Engine (Strange Sound)


BoostedG6E

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  • Member For: 4y 10m 14d
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.

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  • Puff
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  • Member For: 9y 9m 10d
  • Gender: Male
  • Location: South Australia

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.

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