Epic2112

I want to replace my valve seals w/o pulling my head. I have a regular (KD tools: this one) overhead valve spring compressor, but I realized today that there are two springs on each valve (inner & outer), and my compressor will only grab the outer one. Is there one that will reach both springs so I can pop the retainers out, or do I have no choice but to remove the head ?

Gator_86_951

If you are that far you are really better of just taking the head off and replacing the gasket anyways.

Epic2112

There's a significant amount of distance between pulling the cam tower and pulling the head. What's more, I've got an MLS gasket, which will likely last longer than the rest of the engine.

Epic2112

Trucho-951

Special Tool has designed a nifty DIY tool for this. PM him for pics.

Kool

Don't valve guides have to be pressed in?

reno808

Works really well

blown 944

Guides yes.. seals no

lart951

I have designed a simple tool to remove the springs with the head still attached to the block, it’s a homebrew thingy I guess engineering school finally paid off, because there’s no way in hell that I will buy a tool and make a vendor rich even if it blows I’ll keep trying until I’ll get it right.

Btw with my sofisticade state of the art tool, I can only remove 2 valves at a time than I have to move it to the next set of valves.

Epic2112

Aaaaaaaaaaaaaaaaaaaaaaaaaaaaand that right there is going to save me a ****load of money. Thanks!

BTW, any suggestions on how what PSI I should use to hold the valves in place? I imagine things are going to be a bit stuck together, but too much pressure could damage something, couldn't it?

lart951

I get the special tool on top of the springs tight the 13mm bolt than I applied pressure with my left arm, you should ve able to remove the springs retainers with a small screwdriver.

To relase the spring I pace a thick carboard on to of the valve and move the special tool to the left.

Trucho-951

Since I didn't have access to an air compressor, I used a 1/4" nylon rope to stuff down the cylinder. Once you bring the piston upto TDC, the rope keeps the valves from dropping. The nylon rope is strong enough for the job, but soft enough not to scratch anything inside the cumbustion chamber.

Epic2112

I'm not even going to pull the plugs if I don't have to. I have a hose that I can use to pressurize the combustion chambers. That will save me the time of pulling the plugs and of turning the engine by had. Yeah: lazy.

m42racer

There is a PROPER tool made for this job. Its a universal tool made in the US. Should be available thro most parts houses. Comes with handle, clamps and rod. The handle has a red cover and the whole kit comes in a red plastic tray. works really well. If you need to see, email me and I will send photo.

I have seen tools and I have seen tools, but that pictured is a "tool".

Trucho-951

That's not the tool I had in mind, but it's very ingeneous. It appears to be one of Lart’s stripping tools, or from now we could just call it one of “Lart’s S-TOOLs”