HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
Adam842

Removing valves without valve spring compressor

15 posts in this topic

For you guys that have removed your valves without a valve spring compressor, howd you do it?  I saw a video on youtube and the guy used a socket then put a magnet through the sockets hole.  Then he pushed down on the socket and the magnets grabbed the keepers but when i do it doesnt work. When I do it the valve moves down to so the magnets cant grab the keepers. Any help will be appriciated 

Share this post


Link to post
Share on other sites

DO NOT DO IT!  A valve spring compressor is like 20 bucks on ebay, I bought one when I did my top end this past summer, best sawbuck I ever spent.

Share this post


Link to post
Share on other sites

DO NOT DO IT!  A valve spring compressor is like 20 bucks on ebay, I bought one when I did my top end this past summer, best sawbuck I ever spent.

I cant find one for under $50 and dont really want to spend a lot on one if i dont need it because i dont have a ton of money

Share this post


Link to post
Share on other sites

I think I got mine out one time by putting a rag under the head and sharply whacked the valve cap with a socket on top. The keepers eventually fell out. I then bought the tool to put new valves in.

Share this post


Link to post
Share on other sites

If you do not need a valve spring compressor, why are you taking your valves apart?

 

Getting the apart is usually easy, it is getting them back together that is tough and near impossible without a spring compressor.

 

Hack repairs mean hack results.

1 person likes this

Share this post


Link to post
Share on other sites

If you do not need a valve spring compressor, why are you taking your valves apart?

 

Getting the apart is usually easy, it is getting them back together that is tough and near impossible without a spring compressor.

 

Hack repairs mean hack result

Right now Im rebuilding my yz400f and the valves and head have tons of carbon deposits on it. So Im going to take them out clean them, then see if they need replaced

Share this post


Link to post
Share on other sites

Right now Im rebuilding my yz400f and the valves and head have tons of carbon deposits on it. So Im going to take them out clean them, then see if they need replaced

Not how you do it. Before you take the bike apart, you do a leak down test. That will tell you if the valves need work.

 

Disturbing the valves and 'set' they developed will certainly make a questionable valve fail.

Share this post


Link to post
Share on other sites

Not how you do it. Before you take the bike apart, you do a leak down test. That will tell you if the valves need work.

 

Disturbing the valves and 'set' they developed will certainly make a questionable valve fail.

so you think i should just leave them alone instead of taking them out and cleaning them up good

Share this post


Link to post
Share on other sites

I cant find one for under $50 and dont really want to spend a lot on one if i dont need it because i dont have a ton of money

I bought one just like this:

http://www.ebay.com/itm/Solid-Valve-Spring-Compressor-C-Clamp-Service-Kit-Auto-Motorcycle-ATV-Engine-HD-/281488656460?hash=item418a08084c&item=281488656460&pt=Motors_Automotive_Tools&vxp=mtr

There are a bunch on ebay for right around the same price.

Share this post


Link to post
Share on other sites

Thanks!!! Whats your oppinion of me taking the valves out to clean the since i think there theyve never been cleaned before

Share this post


Link to post
Share on other sites

Thanks!!! Whats your oppinion of me taking the valves out to clean the since i think there theyve never been cleaned before

If you do, replace the seals.

Share this post


Link to post
Share on other sites

I followed that video with my top end rebuild. It worked great. Just have a folded rag under the valves. Putting it back together is the hard part. I had my wife put the keepers in while I held the spring down. Also, dont get in a hurry. If you slip, you could damage the cam journal or the valve cover gasket area.

Share this post


Link to post
Share on other sites

When you clean the valves, if using a bench grinder mounted brush, stay off of the sealing surface of the valve face.  DO replace the seals.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0