well i messed my car up when installing the secret cams and iam trying to figure out what went wrong so. i had all my timing marks lined up. witch means it should have been timed rite? so is there any way i could have the wrong cams here are the #s on the cam closest to the timing chain.
Intake 245
742
Exhaust 225
455
are thows the rite numbers or not?
only the exhaust valves hit so iam guessing something is wrong with the exhaust side
please help out
Thanks
Paul
The casting number don't mean anything for the 2.3 cams. The Ho and Lo had the same casting number. You need to mesure them.
Gilles
2.3 Ho
yeah but could the cam have even cost the valve to hit the pistons? or does it just sound like it wasnt timed right?? i dont know how it wasnt timed if all the timing marks lined up and the dowls where locked in place on the cam gear?
so timing
or wrong cam?
or what else could have happend
only 3 exhaust valves hit
Thanks
Paul
Still a chance to time it 180 degrees backwards with all of the timing marks lined up. In the Haynes/Chiltons manuals, it doesnt tell you this, it makes people believe that is all you have to do. I THINK cyl. number 1 needs to be on TDC compression stroke and then time that up, dont take my work, there will be more informed people to come in and check this topic out, and they will set it strait. If you were just replacing timing chain/tentioner/guides/gears, and you dont move the crank, you dont have this problem. It is when you take a bare block and go to time it, that is when it would get tricky, because if your doing cams or timing chain, just get all the timing marks lined up b4 you take it apart, and when you put it back together, just line the cams back up and it would be perfect.
^ that is not a problem with our twin cam. The dot on the crank gear is #1 at TDC. You can turn it 11times and it will still be at TDC. Same thing for the cams. When you line everything up, it's all set. You don't have to worry about the compression stroke or #1 at TDC. It all does that with the marks. Otherwise how do you think the "Tech" at Gm could time an engine when they don't know how to find the damn knock sensor on my 2.4.
If the cams were too big it could have cause trouble but I doubt it with the 2.4 head. You can have everything lined up but you can skip a tooth on the crank and f*** it up. Take my 2.3 for example. I lined up everything and I can't get the chain on the crank gear without a slack between the crank and the cam gear.
The crank on my 2.3 need to be a bit off to fit the chain perfectly. Once the chain is on, you can turn the engine slowly by hand (with a wrench, ratchet or screw driver between the flywheel bolts (if the flywheel is off)) and see if there's any problem.
Gilles
2.3 Ho
