I suspect my timing chain jumped a tooth...whats the best way to determine this? someone suggested taking the valve cover off? you can actually inspect the timing chain from that area?

Truck will crank strong but makes no attemt to start...eliminated a fuel problem...still checking electrical malfunction...

any help would be apprieciated...thanks in advance

oh... 1994 toyota 4x4 22re 4 cyl

 

One bump for the brothers who aint here

 

See if you're getting fire. My timing chain jumped a tooth. It still ran, just really rough. If you just took the valve cover off about all you could see is if the chain was still on; if it jumped a tooth you couldn't really see.
Nathan

 

set your crankshaft to TDC with your valve cover off. Your camshaft sproket should have either a dot or three dots below a link which should be the one at 12 o' clock. The link that is above the dot or dots should be a different color and/or say something different on the actual link than all the others. If your crankshaft is set at TDC, the dot on the camshaft should be at 12 o clock, if not go around again with the crankshaft pulley until they are both lined up and the special link is above the dot, this will only take up to 3 more times going around until the link is lined up, if it isn't already. If the dot on the cam sprocket is off from the link by one, then you know you are off a tooth.

 

oh, btw did it just quit running one day or did you do some work to it and it didn't run after? If you did, what work did you do?

 

I have heard that if it jumps a tooth there will be a slight suction at the exhaust. You could try having someone crank it while you check the exhaust pipe for any kind of slight suction.

 

Hey Thanks everyone for your replies...I fixed it! My Distributor "unspooled" looked like an explosion took place inside. Took about 30 minutes to install a new one...back on the road again!

Thank you all again

Rico