Okay my timing chain broke and I am reinstalling the gears(2 teeth broke) and the chain...My question is when trying to reach TDC on #1 (and 6) How am I supposed to know if its on the intake or exhaust stoke? Thanks

 

when you put the crank gear on the dot should be at 12 o-clock and when you put the cam gear on the dot should be at 6-oclock, you shouldnt need to know about the valve timing unless you are setting your valves???

did you do a leak down test to see if you bent any valves, usually when a person breaks a timing chain the valves hit the pistons and cause all kinds of nasty problems??

more info???

 

This belongs on "LT1 Engine Tech". Moving it there.....

 

...not sure what a leak down test is but Im asking because the crank turned while the cam didnt so they are off now...I know how to get TDC but im not sure how to get the intake stroke of it.

 

doesnt matter, just put the marks they way i posted and you will be ok(as far as setting up the timing chain and gears)

 

but i would be willing to bet that you have bent valves

 

The piston approaches TDC on the compression stroke - both valves are closed. The piston approaches TDC on the exhaust stroke - the exhaust valve (and likely the intake, depending on overlap of the cam) will be open. The piston is at BDC at the end of the intake stroke.

Just get the dots aligned correctly as described above, and the valves will be in the correct position. See Shoebox's cam install instructions for a "Timing chain assembly diagram":

http://shbox.com/ci/cam_install.html

 

Cool thanks for the help man...Guess im just gonna go finish it and find out that I have more problems!!!Sweet!! (I so hope not)

 

Umm guys I cant turn my crank gear anymore. Its at a point where its not turning and I already undid all of the sparkplugs....What do you think? And also what are my chances that I have no bent valves?