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ccrider2420

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Had to change the head gasket on my 22hp craftsman rider engine model #407777. These fell out without me seeing them I'm thinking they are seals that fit on the engine end of the pushrods but would like to hear for sure before I reassemble it. Cant find any diagrams online that show them. See pics. Thanks steve
 

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hlw49

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valve stem seals fit over thhe top of the valve guides.
 

StarTech

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Hmmm shouldn't fell out of the cylinder heads so I think the OP brought some after market gasket kit. BTW one of the seals look defective.
 

ccrider2420

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Had to change the head gasket on my 22hp craftsman rider engine model #407777. These fell out without me seeing them I'm thinking they are seals that fit on the engine end of the pushrods but would like to hear for sure before I reassemble it. Cant find any diagrams online that show them. See pics. Thanks steve
Thanks for the reply, so I pulled the head to replace the gasket but I didn't remove the valves from the head so not sure how valve seals could have fallen out. Still looks like the hole the engine side of the pushrods is the same size as the seals. Can't believe no engine diagram shows them.
 

StarTech

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Post the type number for the 407777.

But is an example from one the 100 407777 engine ipls. Item 868 is only used on the intake valve guide. And are under the valve springs so you have disassemble the valve system to get them to even fall out; otherwise, if they were installed there is no way they can fall out.
1696943541979.png
 

ccrider2420

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Post the type number for the 407777.

But is an example from one the 100 407777 engine ipls. Item 868 is only used on the intake valve guide. And are under the valve springs so you have disassemble the valve system to get them to even fall out; otherwise, if they were installed there is no way they can fall out.
View attachment 66971
Yup can't see them falling out since I didn't remove the valves. The model is 407777 type number 0174-e1. I did find the part on a parts website and it does call it a valve seal however like I said didn't remove valves & of course when I pulled the head there's nothing but the valves no seals. If they had come loose they would still been on the valve shift right?.
 

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StarTech

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Right they would still had been on the stems as the metal cups are intact. Someone else must had in there and left them off and toss them in to get off the work bench.
 

ccrider2420

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Thanks for the reply, so I pulled the head to replace the gasket but I didn't remove the valves from the head so not sure how valve seals could have fallen out. Still looks like the hole the engine side of the pushrods is the same size as the seals. Can't believe no engine diagram shows them.
Mystery solved. Pulled the head back off and you can see they fit into the holes in the block & the pushrods go through them to the lifter. Ordered two new ones on ebay now it will just be driving the new ones in without tearing them up lol
 

StarTech

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In the 14+ yrs I have servicing these engines I have never seen valve stems used at the lifters so you truly got an unique setup.
 
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