Valve spring removal Q?

PaulS · Feb 22, 2016

My apologies but I couldn't find definitive info from a quick search.

Anyone have luck removed the valve springs on an 08 Fe450 without taking the head off? Is there a special tool for this?

Looking to change out valve seals and have tried a conventional overhead valve spring tool but it's too tight in there.

Thanks for any advice!

PaulS · Feb 24, 2016

Would this work?

https://www.kmstools.com/lisle-on-the-car-valve-spring-compressor-20594

Seems lower profile than the standard automotive overhead compressor

bushmechanic · Feb 24, 2016

i bought a similar one .... no chance

you might be able to use compressed air or a long soft chord fed into the combustion chamber

ive not tried it

PaulS · Feb 24, 2016

Thanks BM, I guess I'll take the head off again.
Was just labour intensive with removing timing chain and such.

All good, I enjoy the therapeutic nature of working on these bikes

Rainerio · Feb 24, 2016

This is going to be stupid but put the bike up side down. If the tool works why not. First Remove tank and drain oil.

helithumper · Feb 29, 2016

Ive done this on my 650 when I broke a valve spring.

What I did was:
*remove the spark plug and fill the cylinder with good quality rope, Nothing to thin or to thick. then turn the crack to TDC or close to it
* I made a tool out of a threaded rod and a washer+ nut. I welded a Y at one end and put 3/4 in socket on the other end which I removed one side of it so I can remove and install the valve spring retainers.
* Place the Y end up against the lower radiator attachment point and the turn the nut which is seated against the socket. it will push down on the valve spring, only turn the nut as mush as you need to remove the valve spring retainers .
* remove tool and replace valve seal.
* when you reinstall everything use a bit of grease on the valve spring retainers, it will help hold them in place.

with this tool you should be able to do the intakes if you need to as well , you just need to find a place to anchor the tool to.
If you want I can try to find a picture of my homemade tool for you.

Hope this helps.

PaulS · Mar 1, 2016

That sounds awesome, a picture would be great if possible!

helithumper said:
Ive done this on my 650 when I broke a valve spring.

What I did was:
*remove the spark plug and fill the cylinder with good quality rope, Nothing to thin or to thick. then turn the crack to TDC or close to it
* I made a tool out of a threaded rod and a washer+ nut. I welded a Y at one end and put 3/4 in socket on the other end which I removed one side of it so I can remove and install the valve spring retainers.
* Place the Y end up against the lower radiator attachment point and the turn the nut which is seated against the socket. it will push down on the valve spring, only turn the nut as mush as you need to remove the valve spring retainers .
* remove tool and replace valve seal.
* when you reinstall everything use a bit of grease on the valve spring retainers, it will help hold them in place.

with this tool you should be able to do the intakes if you need to as well , you just need to find a place to anchor the tool to.
If you want I can try to find a picture of my homemade tool for you.

Hope this helps.

helithumper · Mar 1, 2016

here you go, the worlds ugliest homemade tool. LOL
I lied on my last post, you put the y part of the tool on the top rad shroud mount not the bottom one. I also forgot to mention to remove the radiator and valve cover but that should be common sense. My bike isn't taken apart so the second picture is where I located the Y part of the tool. feel free to find another place to put it.[URL="[URL=http://s1341.[IMG]http://[URL=http://s1341.photobucket.com/user/reiddavid1/media/tool%20068_zpsntysyc5c.jpg.html]

[/IMG]

helithumper · Mar 1, 2016

sorry second picture didn't want to load.http://[URL=http://s1341.photobucket.com/user/reiddavid1/media/tool%20068_zpsntysyc5c.jpg.html]

[/URL]

joef · Mar 28, 2016

There is another way to do this that I have heard of. I don't know if I would do it personally but I have seen my mate do it and it worked on his CRF.

He just put a socket over the end of the spring with a magnet in it and hit the socket with a hammer. Then the magnet picked up the collets and the spring came off.

Not sure how you would get them back on though!

Joe

Valve spring removal Q?

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