In this video we see what engines Codes P0021 AND P0054 ARE ALL ABOUT. 2008 Infiniti G37 and all VQ37HVR ENGINES. Click these links for both gaskets http://amzn.to/2nMTn7j
http://amzn.to/2nvBVBG. if you go to a dealer they lie to you and tell you that the entire rear timing chain cover needs replaced because the gaskets are not sold separately. Fyi never buy an Infiniti unless you have plenty of spare time , thousands of dollars in tools and a passion for working on cars and you will need plenty of cash and computer skills tracking down parts. Never trust a nissan Dealer never trust an infiniti dealer , never buy a nissan never buy an infiniti
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I have alittle over 50k on my g37s; now perhaps i should sell it. One of the most impressive videos I have seen on here. If I tore mine down that far not sure I could get it back together.
Here's the speeded up video about the Q5 piston and conrod replacement. https://www.youtube.com/watch?v=SRv2jg1xZoM
I had a bad experience at a Midas too. I saw him squirt some brake fluid under the boot of my front disc piston, then tell me the seals were leaking. I told him to let the car down from the lift and I got out of there.
There's a good video on what it takes to R&R the pistons on a late model Audi Q5. They used a lot of oil for a few years, so there was a recall. The video shows the dealer mechanic doing the job.