Replaced Camshaft, STILL won't start

[Jsinclair]

Good Afternoon,

I confirmed that the ignition coil is on the correct way. I was also able to get the spark plug to jump a .25in gap.

I also gapped the valves again (to .006), and made a quick video of the valves as the motor tried to crank (with the fuel shut off). At the beginning of the video, you hear it hit the compression release hard, pause, then resume cranking.

I also noticed that the exhaust pushrod is spinning. If you look closely in the video below you'll notice it spin as the compression releases. Is this normal?

I've pretty much accepted the fact that I am going to have to tear apart this motor again.

 

[cpurvis]

.06? Do you mean .006 (inches)?

 

[StarTech]

Well just a couple thing I notice here that is incorrect.

First that lower rocker and valve is the intake and not the exhaust.

Second you got the push backwards as the aluminum goes on the intake and the steel one on the exhaust. Won't prevent he engine from starting but will cause problems later.

 

[Jsinclair]

.06? Do you mean .006 (inches)?

Oops missed a digit, yes .006. I corrected that in my post.

 

[Jsinclair]

Good Morning Guys,

So I've got the engine off the mower, and the timing appears to be correct. The camshaft is still in tact (intake & exhaust lobes, compression release). I've attached a few pictures just to confirm the timing is right.

I also switched the push rods.

Is there anything else in particular I need to take a look at while I have the case cracked?

 

[NorthBama]

I see a key on crank i don't see a dot on the crank gear tooth
dot to dot must line up

 

[Scrubcadet10]

I think you're one tooth off... I zoomed in on the picture and it looks like the gear tooth on the crank below the key and dot on the cam has a round dot on it.

 

[Jsinclair]

I might have figured it out. There are two very tiny dots on the crank, one on the left and one on the right. Apparently I chose the wrong tiny dot? Maybe it's the one on the left and not the one by the key?

 

[Jsinclair]

Here is a picture of where I'm at now. How can I confirm this is the right timing before putting it all back together?

 

[cpurvis]

By rotating the crank and watching the valves. The exhaust valve should just be closing and the intake valve starting to open when the piston is at top dead center.