Blueblood Posted May 30, 2007 Share Posted May 30, 2007 According to Toyota, the 5.7 also uses a belt. Quote Link to comment Share on other sites More sharing options...
tommy8768 Posted May 30, 2007 Share Posted May 30, 2007 well their literature is wrong...the 5.7 does have a chain. Havent seen any problems with the new Tundras yet but its too early yet...and as far as the camshafts go everyone has problems. Im sure YOU GUYS will tell everyone how evil Toyota is and how theyre fucking all the domestics over. Ford never made a bad engine did they? Its funny how the sludge problem is Toyotas fault, whos to blame for the plug-ejecting Tritons, the 3.8s that needed head gaskets at every oil change? How about the Rangers and Explorers that cracked so many cylinder heads that aftermarket companys started casting them? Almighty Ford never messes up anything do they? Quote Link to comment Share on other sites More sharing options...
range Posted May 30, 2007 Author Share Posted May 30, 2007 Interesting quotes from the Toyota spokesman: "we think the problem is solved," Toyota spokesman John McCandless said. "We're still trying to get our arms around how many could have been affected," he said. Doesn't inspire a lot of confidence. Quote Link to comment Share on other sites More sharing options...
CurtisH Posted May 30, 2007 Share Posted May 30, 2007 well their literature is wrong...the 5.7 does have a chain. Their ads in magazines show a belt. How do you know it's a chain? I'm not saying you are wrong. There just seems to be conflicting information and I would like to know whether it's a belt or a chain. Thanks. Quote Link to comment Share on other sites More sharing options...
ebritt Posted May 30, 2007 Share Posted May 30, 2007 well their literature is wrong...the 5.7 does have a chain. Havent seen any problems with the new Tundras yet but its too early yet...and as far as the camshafts go everyone has problems. Im sure YOU GUYS will tell everyone how evil Toyota is and how theyre fucking all the domestics over. Ford never made a bad engine did they? Its funny how the sludge problem is Toyotas fault, whos to blame for the plug-ejecting Tritons, the 3.8s that needed head gaskets at every oil change? How about the Rangers and Explorers that cracked so many cylinder heads that aftermarket companys started casting them? Almighty Ford never messes up anything do they? :blah: :blah: :blah: :blah: Quote Link to comment Share on other sites More sharing options...
ebritt Posted May 30, 2007 Share Posted May 30, 2007 http://www.consumeraffairs.com/automotive/toyota_engine.html Quote Link to comment Share on other sites More sharing options...
630land Posted May 30, 2007 Share Posted May 30, 2007 Of course we all know this would be as big as Lindsay Lohan's DUI on the news if it were Ford. Quote Link to comment Share on other sites More sharing options...
tommy8768 Posted May 30, 2007 Share Posted May 30, 2007 What about it's 4-star crash rating? Dont drive like a moron and you wont have to worry about it. Quote Link to comment Share on other sites More sharing options...
Ford-150 Posted May 30, 2007 Share Posted May 30, 2007 (edited) Dont drive like a moron and you wont have to worry about it. unfortunately not everybody causes the crashes they are in, but good excuse :reading: Edited May 30, 2007 by Ford-150 Quote Link to comment Share on other sites More sharing options...
kpc655 Posted May 30, 2007 Share Posted May 30, 2007 (edited) Doesn't the 5.7 using a timing CHAIN? As for the aluminum....most of the damage caused by a cam failure in any overhead cam engine would be limited mostly to the heads. What engine built today DOESN'T have aluminum heads? Either way, it's going to be a mess, but it wouldn't be any worse than a cam failure in any Ford engine. If the cam (or half of the cam) stopped rotating and the crank didnt also immediately stop there is a high probability that the piston would hit the opened valves. this could mean bent rods, damaged pistons/valves, damaged heads, broken crank etc. etc. A buddy of min just lunched is 383 chevy..he floated a valve and the piston hit it...this caused a couple of rods to bend and the cam broke in two. some of the lifters came out in pieces. I work for a supplier and i can tell you that any field failure is a HUGE deal particularly when it involves something as serious as the engine or a safety item. right now toyota is weighing the risks with the supplier and no doubt considering recalling all the trucks and swapping out cams. 20 is statistically significant..with six sigma and the myriad of other quality systems and checks..20 failures (so far) is frightening to anyone trying to manage a stable process. Ford should pounce on this opportunity. Edited May 30, 2007 by kpc655 Quote Link to comment Share on other sites More sharing options...
White99GT Posted May 30, 2007 Share Posted May 30, 2007 well their literature is wrong...the 5.7 does have a chain. Havent seen any problems with the new Tundras yet but its too early yet...and as far as the camshafts go everyone has problems. Im sure YOU GUYS will tell everyone how evil Toyota is and how theyre fucking all the domestics over. Ford never made a bad engine did they? Its funny how the sludge problem is Toyotas fault, whos to blame for the plug-ejecting Tritons, the 3.8s that needed head gaskets at every oil change? How about the Rangers and Explorers that cracked so many cylinder heads that aftermarket companys started casting them? Almighty Ford never messes up anything do they? How about the head-gasket popping Toyota 3.0L & 3.4L V6s, how about those garbage Camry transmissions, how about those wonderful Toyota ball joints that disintegrate and lead to total steering loss, how about that engine sludge problem, how about the old Toyota 4-banger that ate timing chain cassettes, how about those snapped Toyota 5.7L cams, how about the Tundra's 4-star crash rating? Please, go kiss Toyota's ass somewhere else because you add nothing to this board. Quote Link to comment Share on other sites More sharing options...
ford-boy Posted May 30, 2007 Share Posted May 30, 2007 If the cam (or half of the cam) stopped rotating and the crank didnt also immediately stop there is a high probability that the piston would hit the opened valves. this could mean bent rods, damaged pistons/valves, damaged heads, broken crank etc. etc. A buddy of min just lunched is 383 chevy..he floated a valve and the piston hit it...this caused a couple of rods to bend and the cam broke in two. some of the lifters came out in pieces. I don't know if the 5.7 is an interference engine or not, but assuming it's not, if the cam broke in the middle, the engine would still run, tho very rough. Like dropping 2 cylinders. There would be metal to metal contact at the point of the break which would cause at least SOME fine metal particles to circulate throughout the engine, if it wasn't shut down. If it was an interference engine, then definitly things would be kissing each other in the motor. Either way, this doesn't seem like they could just get away with a new cam change. It's new motor time. As Ralph Cramden used to say, " How sweet it is." Quote Link to comment Share on other sites More sharing options...
ebritt Posted May 30, 2007 Share Posted May 30, 2007 Dont drive like a moron and you wont have to worry about it. So everybody who has ever been involved in a crash is a moron now? Quote Link to comment Share on other sites More sharing options...
Deanh Posted May 30, 2007 Share Posted May 30, 2007 well their literature is wrong...the 5.7 does have a chain. Havent seen any problems with the new Tundras yet but its too early yet...and as far as the camshafts go everyone has problems. Im sure YOU GUYS will tell everyone how evil Toyota is and how theyre fucking all the domestics over. Ford never made a bad engine did they? Its funny how the sludge problem is Toyotas fault, whos to blame for the plug-ejecting Tritons, the 3.8s that needed head gaskets at every oil change? How about the Rangers and Explorers that cracked so many cylinder heads that aftermarket companys started casting them? Almighty Ford never messes up anything do they? youre missing tho point oh angry one....this would be CNN material if it was ford.....Toyata isn't evil at all, but their cleanup squad does a dandy job....payoffs? Quote Link to comment Share on other sites More sharing options...
Deanh Posted May 30, 2007 Share Posted May 30, 2007 Tommy....everthing says belt...do you actually work on them?.......?The 5.7 uses a timing belt - Page 3 - Tundra Solutions Forums...............???????????????????????????? And this is a forum trying to justify the use of a belt!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Kev-Mo Posted May 30, 2007 Share Posted May 30, 2007 Their ads in magazines show a belt. How do you know it's a chain? I'm not saying you are wrong. There just seems to be conflicting information and I would like to know whether it's a belt or a chain. Thanks. I saw the cutaway of the 5.7 here in Denver at the National Western Stock Show. It's a chain. I even commented to the guy that it was about time the import brands used chains instead of belts. Quote Link to comment Share on other sites More sharing options...
Kev-Mo Posted May 30, 2007 Share Posted May 30, 2007 There were also quotes in the news about how the Toyota 5.7 was designed to prevent residual damage in the event of cam/chain failue, but Toyota was going to replace the entire engine anyway. Quote Link to comment Share on other sites More sharing options...
Deanh Posted May 30, 2007 Share Posted May 30, 2007 I saw the cutaway of the 5.7 here in Denver at the National Western Stock Show. It's a chain. I even commented to the guy that it was about time the import brands used chains instead of belts. Weird....all i can pull up is scripture indicating belts.....maybe they are trying to appeal to both sides of the fence...ba$tards.... Quote Link to comment Share on other sites More sharing options...
White99GT Posted May 30, 2007 Share Posted May 30, 2007 (edited) As has already been stated, the Tundra 5.7 uses timing chains. I was able to find some cutaway pics on the internet. With the valve covers off the 5.7s look remarkably similar to a 4V Mod motor - it even uses roller followers with hydraulic lifters/adjusters. I figured Toyota would have used DAMBs on their new 5.7L. Edited May 30, 2007 by White99GT Quote Link to comment Share on other sites More sharing options...
BlackHorse Posted May 30, 2007 Share Posted May 30, 2007 I understand the hatred for Toyota but honestly -- 20 camshaft failures isn't a blip on the radar unless you're REALLY looking for it. Well, unless you're standing there on the Toyota lot thinking about buying the Tundra and "poof" the little devil appears on your shoulder and says "Don't worry about that camshaft thing boy, you'll be fine." Then you say . . . Quote Link to comment Share on other sites More sharing options...
2000SableWagon Posted May 30, 2007 Share Posted May 30, 2007 Well, unless you're standing there on the Toyota lot thinking about buying the Tundra and "poof" the little devil appears on your shoulder and says "Don't worry about that camshaft thing boy, you'll be fine." Then you say . . . Considering the vehicle has only been on sale for several months and most of the vehicles have 5K miles if that, it is actually quite significant. Quote Link to comment Share on other sites More sharing options...
BlackHorse Posted May 30, 2007 Share Posted May 30, 2007 Considering the vehicle has only been on sale for several months and most of the vehicles have 5K miles if that, it is actually quite significant. Yeah that's pretty much the point I was making only I thought it was so obvious that it didn't need to be stated so I made a little joke instead to sort of accentuate the point. Quote Link to comment Share on other sites More sharing options...
g48150 Posted May 31, 2007 Share Posted May 31, 2007 To be fair, it was the SUPPLIER, not Toyota that has the problem... I'm not a Toyota CAR lover, rather I love the Toyota Production System... Ahhhh engineering... Quote Link to comment Share on other sites More sharing options...
DearbornDerek Posted May 31, 2007 Share Posted May 31, 2007 To be fair, it was the SUPPLIER, not Toyota that has the problem... I'm not a Toyota CAR lover, rather I love the Toyota Production System... Ahhhh engineering... To be fair, when its a SUPPLIER problem with Ford, its still the blue oval that gets dragged through the mud. I really love how this article was buried on the last page of the business section. "Toyota fixes faulty engines on Tundras Toyota Motor Corp ., Japan's largest automaker, is replacing faulty engines on a "small number" of 2007 Tundra large pickups, as it tries to increase U.S. sales of the revamped truck as much as 60 percent this year. The 5.7-liter V-8 engines have been replaced on about 20 of the pickups, Bill Kwong, a Torrance, California-based spokesman for Toyota, said Tuesday. Camshafts used in the engines were improperly processed by a supplier and can snap, causing the engine to fail, he said. Kwong declined to identify the supplier. "We've had 20 cases of engines failing because of the camshaft out of the 30,000 sold since February, so it's a small number," Kwong said in an interview. The company hasn't determined whether a recall is necessary, he said. The redesigned Tundra, built in a new plant in San Antonio, is larger and more powerful than its predecessor, stepping up competition with models such as Ford Motor Co.'s F-Series and General Motors Corp.'s Chevrolet Silverado. Tundra U.S. sales rose 6.7 percent to 43,386 this year through April, as F-Series sales fell 14 percent to 228,343 and Silverado's declined less than 1 percent to 202,151." I really like how the local press makes it sound like its no big deal and that the tundra is "competition" to Ford and GM. Quote Link to comment Share on other sites More sharing options...
tommy8768 Posted May 31, 2007 Share Posted May 31, 2007 OK Ok...the moron comment was stupid I admit that and I apologize. But Im just trying to point out that EVERY automaker has these problems. I can only go by what I see and fix. They all have engine and trans problems, Ball joint issues, electrical problems, etc. However having worked at both I can say that Toyota is better to work for than Ford. Ford has dug such a big hole for temselves that I dont know if they will get out of it. Ive done as many engines and trannies at Toyota as I did at Ford or Chrysler. Would you like to hear me say Toyotas are shitboxes? OK fine, they suck. But Toyota is making money, Im making twice as much as I did at Ford or DCX, and Ford is cutting back and laying off people. Like they say numbers dont lie. I dont give a good goddamn how Toyota does it as long as Im making good pay. Im only in it for the money. Quote Link to comment Share on other sites More sharing options...
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