Reinstalling exhaust valve guillitone

[SKIPPY]

Took my exhaust valves out the other day to clean and now I can't remember which side is up and which is down. They fit in there both ways. Is it picture 1(left) or 2(right). thanks

[mad1818]

The second photo is the correct way and that is the only way they will go in. If you try the wrong way the valves will catch and you'll have to compress them while putting them in.

[Mule]

The bottom edge of the valve is bevelled.

That bevel should sit so that when it's in and all the way down, the piston clears the valve.

Imagine pressing the valve against a cylinder, one way would mate better than the other. The way that mates better is the way you want it installed.

The picture's a bit fuzzy, but it looks like the top one is the direction you want it to go in.

[SKIPPY]

Originally Posted by Mule

The bottom edge of the valve is bevelled.

That bevel should sit so that when it's in and all the way down, the piston clears the valve.

Imagine pressing the valve against a cylinder, one way would mate better than the other. The way that mates better is the way you want it installed.

The picture's a bit fuzzy, but it looks like the top one is the direction you want it to go in.

Thanks for the help! I just now figured out that carls cycle must of took some metal off the very end of the guillitone to clear the 910 pistons. The end of the guillitone is beveled shape from one edge to the other. I pulled the valve out of my 04 800 and it had two bevels split about half way through the very bottom of the valve(one going each direction). Two different looking guillitones between the sleds. Mule I think your right with the top picture being the right direction. Can anyone confirm this? Thanks

[mad1818]

Well, I pulled my 08 700 valves tonight and picture #2 is how they came out and that was the only way they would go back in.

[785rmk]

They should only go in one way.

[SKIPPY]

Originally Posted by 785rmk

They should only go in one way.

Mine go in both ways and work both ways! Maybe the stock sleds only go in one way, This sled has a 910 BB and carls did something to the valve to make it fit both ways by accident. I will call them later to find out which way. Thanks

[devilrmk]

Originally Posted by SKIPPY

Mine go in both ways and work both ways! Maybe the stock sleds only go in one way, This sled has a 910 BB and carls did something to the valve to make it fit both ways by accident. I will call them later to find out which way. Thanks

i doubt it was by accident.

[SKIPPY]

Talked to Carl's and the proper way is the bottom picture! Thanks