Thread: Won't start after cam install

I still think the timing marks are off by 180 degrees

Originally Posted by torq455

I still think the timing marks are off by 180 degrees

Explain how that's possible on our motors please. Because I'm not aware of it being possible.

When you line up the cam and balance shaft, then line up the cam and crank. The cam to crank is what's important. That's what keeps the pistons from hitting the valves. This isn't a distributor motor where you can have anything 180 off if the dots line up. The HB has a key and that tells the pcm when to fire a cylinder. But I've never seen ignition timing bend rods either.

The pistons are going to have marks or be cracked in this motor. Head pulling needs to happen IMO.

Sorry B.. I don't understand how this could happen if the marks on the cam and crank were always lined up. Do you have a picture that you can post/repost of the marks lining up?

There isn't any possibility the timing of the crank/cam are off. The marks are perfectly lined up (always have been) and I mean, the car was running. It was just making a frequent tapping noise. Maybe the balancer problem did cause this. The motor did feel like it's binding as it tried to turn over. I don't understand.

Any others showing the cam and crank gears sitting well on the keys? You know how the balancer created another groove, on teh cam and crank it's possible for them to flatten out or do other things with the key falling out or what not. That's my next concern, but you went back in and took that off, didn't you?

And at that time there was no noise right? Noise started after that reassmbly?

any way that because the lifters were not soaked over night or at all in this case, the valves were over tightened, and bent push rods was the result?

Originally Posted by BillBoost37

Explain how that's possible on our motors please. Because I'm not aware of it being possible.

Yeah...don't know what the hell I was thinking. Now I feel like a dumb ass.

any chance those roller style lifters are taller than a stock lifter?

I took all the spark plugs out and turned the motor by hand with the lifters installed. The piston/cam timing is correct on #1 cylinder. The lifters stay down on compression stroke, the intake lifter comes up on intake stroke, and the exhaust lifter comes up on exhaust stroke. I looked in the valleys in the heads, and the valve stems look fine (from what I can see).