Re: 97 tercel black hawk,timing belt order help!!!!
Not quite sure why you need to know the firing order as the cam sprocket is indexed to TDC.
First step is to verify that this is a non-interference engine. According to the Gates website, it's not...so, that's really good news.
Next step is to set the engine to top dead center (TDC). Since the timing belt is broken, you simply turn the crank until the timing mark on the crank pulley is lined up with 0* on the timing indicator tab. This puts the number 1 piston at TDC.
The next step is to put the camshafts on TDC. This is where a service manual of some type is needed. The camshaft sprocket will have notches, lines, dimples, something that is used to line up the cams. You can buy a manual at the parts store or you can pay for an online version of a manual. For example, Autozone has a link to online e-manuals. The Gates website has a service for timing belt installation instructions.
Clean up the pieces of the old belt and then inspect the tensioner mechanism and pulleys. Many times belts fail because of a bad tensioner or pulley bearing. If you have a lot of miles on the car, you might just want to replace these components.
With the new pieces in place and the crank gear and cam sprockets in proper position, slide on the new belt and rotate the engine two times to seat the belt. Re-check sprocket alignment. I believe this motor has a hydraulic tensioner, so you don't have to adjust anything on the belt side. Again, get a manual of some sort to help you out.
There should be an underhood label that will provide basic instructions to set the timing (if applicable). The ignition timing on many new cars is not at all adjustable. If this engine does have a distributor, you will most likely have to unplug a spout connector somewhere to put the computer in ignition adjust mode.
Hope this helps. It's not all that bad of a job except for the fact that it's close quarters in there. I often remove the motor mount at the crank-side of the engine and use a floor jack to move the engine up or down so I get the most room. I also remove the front wheel and splash guard. Usually, you get to the crank pulley through the wheel well and you get to the cam components through the top of the engine bay.
If this engine uses a timing-belt driven water pump, you should probably replace that, too, while you're in there.
A word of advice, do NOT go with cheap parts. Buy your parts from either a Toyota dealer or NAPA, Carquest, or similar professional supply store.
Hope this helps.
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