http://tinyurl.com/aqk26z

Can this type of valve seal be installed with the valves held in there closed position with air pressure? Is there a special tool for this?

My guides are .500 with 11/32 stems.

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir

Yep. The fittings are available at most auto parts places. The napa near me stocks them.

Why teflon?

Are you going with a positive seal due to oil use?

CJ

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Part of Tyrde-Browne Racing

Air pressure will hold the valves real well. Even with a 1.44" exhaust and 80 psi there will be well over 100 lbs pushing on the valve. exactly how much depends on the actual diameter at the seat.

You need a sleeve over the stem to protect the seal. You can make one with shrink tubing. The other tool is just bar stock with a hole in it to push the seal on.

I thought the valve guides had to be machined so that a positive seal will lock on the guide? When I changed my valve stem seals, I used some (new) vacuum tubing stuffed into the cylinder, than rotated the crank toward tdc to lock the valves in place.

i use a piece of nylon rope in plughole ,rotate by hand till it locks against vavles....if you use air and have leak...valve will drop...then off with head

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67Cuda,FAST EZEFI,340cu,CR=10.25,RollerCam&Rocker (XR268HR,#20-810-9)(#1622-16)(EddyRPM#60779,#7576), (MSD6AL,#6425) A904, GearVendorsOD, 8 1/4,3.55:1, ClassicAir