Thanks for sharing this!!! I have the tick on my DB9 and am currently doing my due diligence to resolve. I saw you had a DB7 block for reverse engineering in the video. Would the older DB7 V12 work as a donor long block for my 05 DB9 manufactured in 04? Incredibly informative.

All the V12 engines, as built, are steel dry liners in that the steel is inside an Aluminium bore. Aston obviously changed some things as they went along so later DB9's are less prone to the "Tick" than earlier ones. The only thing we know that they changed was the design of the small end bearings to increase oiling to the small end. This undoubtedly helps things but none of the changes fix the fundamental problem which is that the liners move, the combustion gases go down between liner and aluminium and distort the bore.

Interesting video. I have an 2004 DB9 so the tick is always in the back of my mind. I assume the next generation DB9 don't have wet liners? Which apparently don't suffer with the tick. The oil capacity increased as the engine developed with shorter-dipstick. I wonder if the additional oil capacity helped the problem. Knowledgeable chap

Wow, you go to a place with a name like "AstonOwners" and you do not expect audio from two tin cans and some wet spaghetti. Richard's entire talk is crap, and you didn't even offer up some differing shots to cover your massive sound defects. No subs for you!