How do I fix this?!?

[ratsun73]

this is a stock l16 that has a weber carb, and some valve problems. how can i fix this and if i do how do i get some more power out of this engine? this engine is going i a 1973 620 with dana 44 axles.

[MikeRL411]

At least one of your valve problems is that your cam follower is not aligned with the lifter for that valve in the center of the picture!

[datzenmike]

Look for the lash pad that should be on the top of the valve spring retainer. Get it before it ends up in the oil pan. It's likely near by.

 

 

Turn the engine so that the cam lobe in question is pointing UP

 

Get the rocker arm off the pivot end closest to you in the picture and place the other end on the valve spring (with the lash pad in place)

 

Slip a long screwdriver in from this side under the cam (but NOT on one of the lobes) and on top of the valve spring.

 

Lift up on this end of the screw driver using the cam as a fulcrum and pry the valve spring down.

 

This should give more than enough clearance to slip the close end back onto the pivot.

 

Now adjust the valve lash clearance to 0.010" to allow starting. When the motor is hot check this clearance 10 thou.

 

 

Actually, excessive clearance can cause what has happened so check ALL valve clearances.

 

Intake 0.010"

Exhaust 0.012"

[flatcat19]

I'm with that guy.

 

Find the lash pad before you discover it ended up where you wouldn't want it-in the cylinder.

 

 

Scary.

 

*Mental note-adjust valves this weekend.

Someone remind me. lulz.

[]2eDeYe]

Don't forget to adjust your valves this weekend. :)

[datzenmike]

.....and you actually HAVE valves to adjust now.

[ratsun73]

how about the flat spot in the cam? I'll get some more picts soon. this whole topic can be found at4wd 1973 620 pickup