Detailed Follow up to the DB9 Engine Tick -

DB9 engine tick part 1: • DB9 Engine Problem. Is...
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[@kevwillis5061]

Excellent video that provided all the information. Thank you.

[@gbrand5429]

Fantastic explanation for this.. after pages of comment on forums this was pretty comprehensive. Of course we are all wondering how this piston slap would damage the engine? What would be the effect to just relatively live with the noise? As some owners now know that the cost of a rebuild outweighs the value of the vehicles.

[@BamfordRose]

Graham Brand I know of a few cases where the owner carried on driving. In all cases the point of repair was when the tick became too embarrassing! What I normally see when driven for a long time with the condition is the liner wears oval, it drops / sinks in the block casting a little, enough for the head gasket to eventually leak and allow combustion gas into the water system and a pressurisation of the water system expelling coolant into the expansion bottle. I’m sure nursing the engine along, it’ll go for quite some time, but do a few laps at race pace and the issue will turn into something more serious.

[@Robert13O8]

Great video, very informative compared to endless forum topics about this. I have a question however, is there something that can be done to prevent the problem occurring in the first place? Good oil and regular servicing is a given but is there anything else that owners could do?

[@BamfordRose]

Robert13O8 unfortunately I think not, and this is what niggles some owners. They have done absolutely everything correct as an owner to wrap the car in cotton wool, serviced, checked oil level and not race’d or rally’d, yet the problem has still occurred. As I’ve mentioned in other comments, I think it’s therefore a case of buyer be aware at point of purchase and if the problem occurs in ownership, hopefully a rehone and the evolved small end bush is the extent of the rebuild

[@neostarfromearth107]

Thank you ! Very informative !

[@willcatch]

British Engineering at it's best

[@mrguillaa6601]

Thanks for the video. I have got an AM DB9 from 2008 and it has the tick problem ... Bought new at AM Belgium, always serviced, never raced ... They ask me 30k€ to rebuild the motor ;( Not gonna lie, I'm not gonna buy an Aston soon

[@danjelmanjani8145]

Hi, thanks for the helpful tips. Im wondering why you never uploaded the engine running after the rebuild?

[@hoytwood4937]

The DB7 i6 was built like a Swiss Watch !~

[@XJRSuper]

Jag engine!

[@juststuff5216]

I'll take a 2J or an RB over anything Jag produced, any day of the week and twice on Sunday ... which is probably what I'd do if I bought an Aston … rip the V12 out and stick a 2J from Bullet Racing in *3200HP+ RB Block With A 2JZ Twist | 100PSI of Boost, Bullet Race Engineering [TECH TALK]* Given the price of sourcing a new engine, or rebuilding a proven unreliable engine that will be unreliable again, I'd rather buy something 1/3 of the price, billet, and an engine that has more than proven itself to be bulletproof! I love Mike, he's a diamond in an industry where there's precious little integrity and many sharks, but this is simply appalling engineering, at best, by Aston!

[@semperspj]

Really useful thanks, this is the type of information no one seems to want to pass on, can you tell me if the DB7 V12 suffers the same problem?

[@generaljock9346]

Gents, just wondering if - another year down the road - it's become any clearer whether this issue affects both UK-manufactured engines AND the German-manufactured AMEP engines, or just the former. As I understand it, both are the same design, but it's been suggested there may have been a difference in manufacturing or quality control between the two plants which meant the AMEPs did not suffer the same oil starvation. I am taking a DB9 for a pre-sales inspection on Wednesday and she has a slight tick, but she has on '07 AMEP engine, so it will be interesting to see if they diagnose potential small end trouble.

[@generaljock9346]

I can confirm top-end wear induced clicking on a 2006 AMEP-engined DB9. So while the condition seems rare in general, it is clearly a possibility in either case. In summary, you should definately not rule out small-end wear/bore ovality just because the enging is a AM04 numbered Cologne manufactured engine. I would suggest all pre-o8 models are susceptible due to this condition due to the oil level issue, which means a poor service agent or a careless driver allowing a lower level to starve a pot just enough to start of the wear process which results, perhaps 20k miles later, in the tick.

[@steveatx8295]

Is this in a particular year of V12 cars say pre 2007, or is it across the range, all models and across all V12 of all years? Is it the same cylinder often? Or the same one side to side? Would indicate an improper manufacturing of the bore.

[@markscars1069]

I wonder whether some mistake this for fuel injection-related noises? Sounds just like the noises the V6 fuelling system makes in my Panamera :)

[@v10cylinder]

Hi again: would Aston Martin's diagnosis instruments show some error/warning message if the engine has the ticking noise? If so, which error message would that be? In other terms, if the diagnosis instruments did not show any error/warning message, would that mean that the ticking noise is no probem and can be ignored? Many thanks, Sm

[@techmanh]

Hi Mike, Does this fault occur on any random cylinder or does it tend to be in common positions.

[@BamfordRose]

techmanh Hi. No pattern I can reliably identify. The motor ticking in the vid is now coming out of the car and will be stripped, so we’ll do a strip down vid and feedback!

[@juliens007]

J’ai le même bruit, que a chaud et j’ai fait 5000 kms, c’est grave?

[@johnchambers1250]

Great video, thanks. Whilst exact cause is complicated and not thoroughly known, what proportion of cars, in your opinion could be affected, less that 10%,less than 5%?

[@BamfordRose]

John Chambers that’s a tough one because how many early db9 had replacement engines because of low oil level failure or cat debris ingested/ failure. And had those issues meant the engine would have been in for longer, would all of those eventually exhibited the tick? Because the variables are too many (little / low use and such like) I think the purpose of vids like this is knowledge and buyer be aware at point of purchase. If the tick develops within ownership, if the fix is a rebuild, a few liners / pistons (not crank or expensive machining) means a rebuild isn’t the end of the world, but clearly will cost a sum

[@utubecomment21]

I totally disagree with your statement that the exact cause is complicated. The exact cause is simply poor engineering, and one needs someone with a bit of integrity, like Mike and the team, to sort it out! Plenty of powerful engines that don't have this issue. They may have other issues, but ticking issues is just poor engineering, plain and simple. IMO, thank goodness there are people like MIke and the team, however given the price investment of the initial purchase, Mike and the team should be somewhat superfluous don't you think? Having witnesses some diabolical Aston experiences of people I know (one was my boss) I couldn't envisage having and Aston in the first place, but if I did, Mike and the team would be my only port of call. Aston and Aston works, form the experience of having seen friends/associates who have had Aston's, are complete jokers. Sorry for being so harsh Mike, Just my observations and obvious conclusions.

[@steveatx8295]

@@utubecomment21 Engineering combined with manaufactuering. Great engineering can fail when improperly manufactured. Also long term durability testing at the manufacturer would have uncovered this early and stopped it.

[@hoytwood4937]

You couldn't give me a V12 !

[@v10cylinder]

Hi, I watched this video with a huge worry because my 2001 DB7 V12 Vantage (manual stick shift) produces exactly that noise. But the car drives very well. What will happen if I do nothing? Will the engine eventually blow up? How much would it cost to be fixed? Many thanks, Sm

[@willcatch]

About £8,000 depending on the car

[@v10cylinder]

@@willcatch many thanks! Is this at the Aston Martin dealer?

[@marklowry8799]

I’ve gone right off DB9’s