I think they did that to allow for a more compact engine....???
#3
sgkent
bummer. Did piston meet valve too?
#4
StarTech
I have seen those before. Just make sure the camshaft and its ACR survived. Also might be some other internal damage.
This is one thing that can happen when the valves are never adjusted on an OHV engine.
#5
Hammermechanicman
How far is the guide moved up in the head?
#6
StarTech
Yes a valve and valve guide can cause it too. I mainly seen that lately on Kawasaki v-twins. I current have FR730V in the shop where both #1 cylinder push rods are bent. I just got in the cylinder head kit for it and just got to get back to it. The operator ran the engine one cylinder for so long it jammed the valves in the guides. And yes #1 was the cylinder that was dead ignition wise.
The pictured push rod looks to be a Briggs exhaust one.
The Briggs valve guides tend to move when the engine get severely over heated.
Now I have seen Kohler and Honda engines to also have valves guides to move. Most need the valve and guide replaced but most OHV engines OEM don't provide us with replacement valve guides as they make more money selling new heads and cylinder barrels.
#7
Hammermechanicman
I have pressed out briggs guides and did the "bunch of center punch dimples" and pressed them back in when customer didn't want to buy a head. So far none have come back. Taryl has the set screw fix. I may try that next time.
I have a tried and proven permanent slipped valve guide fix along with others sent to me with permission to share, much better than just center punching around them. Address below IF you are interested, put in proper format and remind me engine model and what you want.
