Remove the passenger-side engine mount, the drive-belt tensioner, the engine mount bracket, the crankshaft position sensor from the timing chain cover, the water pump and the bolt securing the crankshaft position sensor wiring harness. Major job requiring special tools and skill. Meaning, if the belt breaks, is it going to destroy everything or not. If tooth damage is found, ensure camshaft and crankshaft sprockets are okay. Rotate crank … shaft so that No. A loose or worn timing belt can set off trouble codes from the camshaft or crankshaft sensors, prompting the warning light on the dash to engage.
Just put same question in the Google, yahoo, or about. The timing chain tensioner keeps tension on the timing chain, pulling the camshafts in time with the crank, and is installed into the back of the engine at the intersection of the cylinder head, block and timing cover. Final tighten water pump pulley bolts. Replace spring if free length is not 1. And yes I would do the water pump at 60,000 just to be safe and it is cheaper to do when you do the timing belt.
Some Toyota engines have timing belts, some have timing chains. Adjust drive belt s to proper tension. Ensure idler pulley tensioner is pushed as far to the left as possible and pulley bolt is snug tight. The recommended mileage I am not sure of but it will be listed in the owners manual. Inspect them for fraying, cracks on the top side, orif they are streatched to the point they cannot be adjustedproperly. Sienna If you drive a Sienna made from 1998 to 2006, with a V6, then be prepared to replace that timing belt every 60k like clockwork. It will last at least 60,000 miles or more.
Belts need to be replaced at normal intervals usually every 90-100k on late model cars or you will have hell to pay. Resetting the Chain Reload and lock the timing chain tensioner by raising the ratchet pawl and pushing the plunger inward with your fingers until it bottoms out and then engaging the hook on the tensioner body with the pin on the plunger. Sequoia Sequoias produced from 2001 to 2009 with 4. If damage occurs, it takes an extensive amount of time to remove the head, plus costly repairs involve replacing misshapen valves, which could bend as the piston hits the valves when the belt breaks. Most new corolla's have chains.
If wear or cracks on flat side of belt face are found, check for nicks on idler pulleys. Tighten center bolt to specification. As the coolant drains, unbolt and disconnect the power steering pump without disconnecting its lines. Remove the camshaft sprockets by loosening their bolts while holding the camshaft lug with another wrench. If you look at the maintenance schedule, you will find no notation of any kind regarding replacement of the timing chain, and that is because a timing chain as opposed to a timing belt is normally a lifetime component. Tacoma If your Tacoma is a V6 from 1995 to 2004, replace the belt at 60k miles.
The timing chains I have done I did because of a chain guide issue. In the worst case, costly engine damage will occur when the belt breaks. The chain works with the camshaft and crankshaft, and the positioning off all these parts is very important. The 2010 4-cylinder 4Runner also has a chain. They do get some slack in them but they aren't going to cause you to be broken down on the road with engine problems like a belt can. If the timing belt breaks, the best case scenario is the car will stop operating. The most common cause of this is a failing intake manifold gasket.
Owners of Sequoias from 2008 and beyond with a 5. If the timing belt does break, the car will stop working, or worse, if your car is equipped with an interference engine, the timing belt could cause major damage to the engine. Remove engine mount at timing belt end of engine. When installing valve cover, ensure sealant is apply in correct positions. Like timing belts, timing chains drive a vehicle's camshaft. Loosen idler pulley tensioner bolt. Check free length of idler pulley tension spring.
Drain the cooling system by removing the drain plug on the radiator and draining the coolant into a large container. Most of the timing belts are recommended at no later than 90, 000 miles. Yes,inspect it, but Toyota has no set mileage interval for replacement. They do get some slack in them but they aren't going to cause you to be broken down on the road with engine problems like a belt can. Note that most Toyota engines are the free-running non-interference design.