Lsballa

This is what I learned this weekend with help from a few guys on this forum.
I figured I would write a how too on this. I havent found any how too's on this subject.

Lsballa

Started out pulling my heads off. To get closer look at the inside and see if anything was cracked or any other problems on the inside.

Lsballa

I then used a Spring Compresser to compress the springs.


Remove the Seats while the spring is compressed.

Lsballa

Remove the Spring assembly

This is the valves stem seal


I pulled out the Valve and cleaned it up

Lsballa

I then replaced the old seal with the new seal.

This one is flexable and rubbery.
Done this is it. Put it back the same way you pulled it appart.



Hope this helps someone.

Just call me Sean

iTrader: (1)

Cool, but you should have put it in the how-to section.

Lsballa

Blaaa i wonder if there is an admin that can move this...

NGM

That is the basic valve seal for most ohv motors. You do not have to pull the head to do it however. Bring the piston to TDC, lock the crank in place and fill the cylinder with compressed air to hold the valve closed.

Just call me Sean

iTrader: (1)

The fitting you need to fill the cylinder with air comes with most compression testers. An alternative method is to lower the piston in the cylinder, feed some rope into the spark plug hole leaving the end sticking out of the hole, and turn the crank to press the rope against the valves which will hold them in place.

papa tiger

Buy some laping compound, since you disturbed the valve removing it. The sealing edges of the valve and seat wouldn't be a match anymore. Laping would clean the areas of the seal/seat and give good compression once more. You may get burned exhaust or have pops coming back thru your air cleaner from a badly seated intake valve.