Valve springs

[jhowes]

I have wondered if there is a shade tree mechanic way of testing valve springs to see if they have the required tension. Any thoughts. Jack.

 

[3.6rs]

http://www.ebay.com/itm/Proform-66775-Valve-Spring-Pressure-Tester-/111555761381

(it's not my ad !)

 

[DaWizard]

Hmmm, since my neighbor owns the tree and all I do is use the shade, I would think that if you had valve spring problems you could find it if you did a "leak down" test, but that would also show if you had a ring problems. Short of removing all the springs and having them tested for conformity, I can't think of anything else "in motor" to do it.

 

[PC/SR]

A vise and bathroom scales will give you pretty good ballpark figures.

 

[Art Newland]

They are cheap... just replace them?

 

[Dick Steinkamp]

They are cheap... just replace them?

X2...a buck a piece for US made ones.

 

[Jim Brierley]

As PC/SR says or a scale on your drill table and use the quill to compress the spring.

 

[katy]

According to Les's red book, the spec is 57-64 lbs at 2.250".

 

[van Dyck]

When using the drill press, insert a used valve in the chuck for a flat surface to push against the spring. Use your depth stop to provide your spring height dimension. I've done thousands of springs that way. It's not hi-tech but it will get the job done.

 

[wmws]

3.6 I don't think spending 277 dollars is what he had in mind for a shade tree job.

 

[DougT]

Hmmm, since my neighbor owns the tree and all I do is use the shade, I would think that if you had valve spring problems you could find it if you did a "leak down" test, but that would also show if you had a ring problems. Short of removing all the springs and having them tested for conformity, I can't think of anything else "in motor" to do it.

A leak down test won't show a bad spring because the valve is forced down by the air pressure.

 

[jhowes]

Thanks for the "shade tree" solutions. appreciated. Jack