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Nooooo! Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Tue, 24 Jul 2001 16:03:46
In Reply to: Checking the Chain Question, JohnE, Tue, 24 Jul 2001 15:05:56 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Are you trying to turn the chain sprockets? Don't! You can damage the engine that way.
What you want to do is turn the engine crankshaft - that will turn the chain and the pulleys. One way is to chock the wheels, and put the car in neutral. Then put a big socket on the crankshaft pulley with a big breaker bar, and turn the engine. It's easier if you remove the spark plugs - no compression. Just don't let anything fall into the cylinders.
Of course, that's how I do it with an automatic. If you have a manual, it's even easier. Put the car in 5th gear, and push on the bumper. (brakes off - do this on level ground!!!) You use the mechanical advantage of the transmission to turn the engine. It doesn't turn a lot, and you sometimes have to 'rock' the car, but it works. And you don't have to wrestle a socket onto the main pulley.
Now, for TDC - yes, the timing marks can be confusing. For that reason, I always go straight to the horses mouth- cylinder #1. Remove the spark plug for cylinder #1. Remove the distributor cap, and rotate the engine until the rotor is pointing near the point for Cylinder #1 (usually a line on the distributor case). Now, take a nice long, soft rod - I like using a wooden dowel - and put it into the spark plug hole. It's important that the rod is a foot or so long, so there is no chance of it falling in. Now, as you rotate the engine, watch as the rod moves up. At some point the upward motion will stop and the rod (piston) will start to move down. That was Top Dead Center. Now look at the marking on the flywheel to know where TDC is, and to check the alignment marks for the timing chain.
, Tue, 24 Jul 2001 16:03:46 <-- Viewing This Message
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