How common are the timing chain issues for the 4.7, people have been telling me around 30,000 miles they need done. However I can’t seem to find any evidence to support that? I’ve got a 2014 gt sport
Alan14sport
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I wouldn't be listening to your co-workers about a Maserati anymore honestly..They don't know anything about these cars it appears...Jason
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It's cool..I pretty much point people in the right direction on here and folks send me cars so it is a win win for everyone...That being said I like being on here..Lots of good dudes...A few turds..
Jason
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Newer cars have lighter valve train components...That is why you use small chains..You don't want a big two row heavy ass chain...As the engine starts to turn a lot of RPM the shear mass and the irregular load because of the cam lobs causes the big chain to kinda beat itself to death...Older cars didn't break the chains, but they would get sloppy when the car got old and the cam timing would be off a lot...Some manufactures have had timing chain/tensioners issues...Most all this stuff is made by INA...They supply a lot of manufactures...Jason
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Belts are lighter and the engine stays in time better over its lifetime because of the service interval...They are also easier to design as you don't need a timing cover to seal the oil in, oil squirters, etc..Think about how long Ferrari ran timing belts? The Dino engine, V12, the boxer....Even Nascar pushrod engines run a timing belt these days..Obviously, the service interval of the belt is the issue in a passenger car, but some newer belts can last 100K... J
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It should be the other way around...Audi 4.2 and it's at the back of the engine...Hello shit show..
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German engineering...They use so many parts...Check it out..Land Rover has been involved with BMW and Ford..A 2005 RR was BMW and a 2006 was a Ford joint venture... Same basic chassis...Ford did the exact thing with the vehicle with like half the parts as BMW..All their wiring harness, fuseboxes, etc are so much better...You may not like Ford, but they can build a vehicle in a very efficient manner and are good at it..J
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Those old Mercedes came with a single row chain and that didn't work out and they had to be converted to a dual roller chain...The issue with that old stuff was the weight of the valve train components..The newer stuff is way lighter by a ton so you can use small chains.. Some manufactures have it figured out and some don't...Honestly newer stuff gets good gas mileage and makes big power but it is all fragile..I don't think Mercedes has a lot of issues...Land Rover and Jaguar do...BMW has issues in some engines...Jason
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Here a crazy gear drive system...Maserati took the Enzo engine for the MC12 and swapped the timing chains for a gear drive setup..Probably noisy as hell!
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Now you did it..You poked the internet bear on oil change intervals bro....Here we go...
J
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I have really never heard that about GDI cars...I'll have to research that...Jason
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Since we are talking timing chains...Some of your later engines have it located at the rear of the engine...Apparently, you get torsional vibrations when the chain is on the front of the engine and that transfers to the valve train and makes it inaccurate...Putting it at the rear reduces that...I'm not a engineer...This is what I read in service information BTW...A later QP with V8 is like this and so is some Land Rover engines and some BMWs engines... Recognize any RWD car that has a setup like that and it gets a timing chain issue then you are gonna be in the house of pain...Just saying..J
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