Valve Spring Compression Tool

[outermarker]

Has anyone made a simple valve compression tool willing to post a drawing with dimensions?  Something like the attached file. 
thanks

[Fly Boomer]

12 hours ago, outermarker said:

Has anyonrre made a simple valve compression tool willing to post a drawing with dimensions?  Something like the attached file. 
thanks

This is the cool way:

https://valvewizard.com/buynow.html

but I'm sure several have built their own.  Drawings and other design specifications may be more difficult.  As infrequently as you will likely use it, why not borrow?

[EricJ]

The valvewizard is not a bad choice for an angle-valve engine.   For parallel valves there are some easier tools, and some DIY methods that also work well.    I have a valvewizard for the angle-valves and one of these for parallel valves:

https://www.aircraftspruce.com/catalog/topages/compressor.php

 

Edit, there's also this, for Lycoming engines:

https://www.aircraftspruce.com/catalog/topages/compressor2.php

[Bolter]

2 hours ago, Fly Boomer said:

This is the cool way:

https://valvewizard.com/buynow.html

but I'm sure several have built their own.  Drawings and other design specifications may be more difficult.  As infrequently as you will likely use it, why not borrow?

As an FYI: the Valve Wizard lists IO 550 N and G as incompatible with their tool.  I think that covers all generations of the NA big engine long bodies.

https://valvewizard.com/pdf/ExceptionList.pdf

[Fly Boomer]

3 hours ago, Bolter said:

As an FYI: the Valve Wizard lists IO 550 N and G as incompatible with their tool.  I think that covers all generations of the NA big engine long bodies.

https://valvewizard.com/pdf/ExceptionList.pdf

I may have made a bad assumption (is there any other kind?).  OP profile says M20E.

[M20F]

Wait you all don’t just squeeze them with your hands?

[Paul Thomas]

If I recall correctly, Dan Horton posted information on how to make one on Van's Air Force.

[Andy95W]

@hammdo made one recently, IIRC.

[hammdo]

Real simple too:

Aluminum angle from home depot -- just measured it so it would fit as needed -- I believe $30 for the aluminum -- very simple...

-Don

[MikeOH]

6 hours ago, M20F said:

Wait you all don’t just squeeze them with your hands?

A couple of well placed fingers is all that's needed.