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Lexus gx470 timing belt replacement cost8/18/2023 ![]() ![]() They made them more reliable, with less frequent replacement.īernie: It's a V8. So you can see the belt in here, but it's quite a wide belt, well over an inch wide.Īnd as I was saying, like in the olden days, they were much thinner and they never lasted as long, but manufacturers got smart. I didn't take pictures all the way through the process, but this is one of the cam shaft covers back on. This is actually the new timing belt installed. So there's a view of the front of the engine. You can actually look at a couple of pictures right now and it kind of gives you an idea of what the belt looks like. ![]() ![]() And they evolved into curved tooth belts with that they're much wider. They used to be these skinny little belts that had square teeth. I think it's always should be replaced, but they're just much more reliable timing belts in the, I mean, I'm working on cars for a long time. And so they will generally last quite a lot longer than the service interval, but I wouldn't recommend you do it because if it breaks, I'm not giving any advice here to leave it longer. For some reason my kilometre calculator isn't working right now, but I think that's somewhere in a 150,000 kilometres, somewhere around there, 150, 160. Mark: What's the replacement interval for timing belts on this particular vehicle?īernie: Yeah, so on this vehicle, it's about 90,000 miles. But yeah, it was time to do the belt from point of view of preventing anything from breaking. So it was not actually due by mileage yet, but you know, certainly by time this vehicle is now 16 years old, in great shape by the way, it's very low mileage for a vehicle like this. Mark: Was there any kind of indication that there was something wrong with the belt?īernie: No, nothing wrong with it actually, just wanted to do it based on the time of the vehicle, the odometer at about 91,000 kilometres on it. So this vehicle was basically due for timing belt replacement. What was going on with this?īernie: Yeah. There was a timing belt replacement for this huge SUV. Mark: So today's victim 2005 Lexus GX470. 24 time winners of best auto repair in Vancouver as voted by their customers. Vancouver's best auto service experience in Vancouver, BC, Canada. I'm here with Bernie Pawlik, Pawlik Automotive in Vancouver. The vehicle is road tested to confirm normal operation and a service sticker is affixed to the engine noting the date of belt replacement and the vehicle mileage.Mark: Hi, it's Mark from TLR. ![]() Upon completion of the installation, the engine crankshaft is turned by hand 720 degrees and the correct position of the timing marks on the crankshaft and the camshafts is confirmed.Installation of the new timing belt includes all of the above steps, performed in reverse, following strict guidelines to assure camshaft and crankshaft (and balancing shaft, if equipped) are in perfect alignment after tensioner has been set.If the engine cooling system thermostat is only accessible with water pump replacement, the thermostat should be replaced as well. If replacing the water pump, do so at this time, and of course drain the cooling system first.Remove timing belt tensioner and idler pulleys. Lock camshafts, as required, and note position of camshaft timing marks. Remove all accessories interfering with the removal of the timing belt covers.Once the engine is cold, set the crankshaft to top dead center with the number one piston on the compression stroke.How do mechanics replace the timing belt?Įngine designs vary, and thus the replacement procedure will vary, but broadly, the procedure is as follows: If your car has an interference engine, replacing the timing belt according to the maintenance schedule will minimize the chance that a belt failure will cause engine damage. These engine designs are referred to as interference engines. On some engines, if the timing belt has jumped, the pistons and valves can collide and there will be noise and damage. Should the belt jump, the engine will run poorly and perhaps not at all. After many tens of thousands of miles, the teeth can wear or break, or the belt can stretch, thus causing the belt to jump position on the crankshaft or camshaft gears. The molded, reinforced teeth on the timing belt engage gears on the crankshaft and camshafts. Occasionally, timing belts can break, or skip, while the engine is running. Engine stops abruptly or will not start.Your vehicle owner’s manual should state the specific service interval. If an engine is equipped with a timing belt, the timing belt must be replaced at the service interval specified by the vehicle manufacturer regardless of whether or not any problem is visible, typically in the range of 60,000 to 90,000 miles. ![]()
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