OTC 5605 Deluxe Compression Tester Kit

[FiendFX]

Are these quality? Or what do you recommend?

http://www.amazon.com/dp/B004K2FSXI/?tag=atomicindus08-20

 

[MRunabout]

I've had that kit for a few years now. Works fine for me.

 

[FiendFX]

Are digital worth buying?

http://www.ebay.com/itm/Mityvac-MV5...1107759758&pt=Motors_Automotive_Tools&vxp=mtr

 

[mossyboy6]

Are digital worth buying?

http://www.ebay.com/itm/Mityvac-MV5...1107759758&pt=Motors_Automotive_Tools&vxp=mtr

Yeah, that looks like it would make life a bit easier.

 

[MechanicNamedJohn]

I would assume they are a quality unit; it's the same as Mac's.

I prefer an oscilloscope for compression testing. Just use an amp clamp for a relative compression reading; if there was a low cylinder just use an ignition sync to find out which cylinder is low. If you wanted to know the actual psi you can use a pressure transducer; plus you can see all 720 degrees of crank rotation.

 

[FiendFX]

I would assume they are a quality unit; it's the same as Mac's.

I prefer an oscilloscope for compression testing. Just use an amp clamp for a relative compression reading; if there was a low cylinder just use an ignition sync to find out which cylinder is low. If you wanted to know the actual psi you can use a pressure transducer; plus you can see all 720 degrees of crank rotation.

A pressure transducer is nice. But a compression tester give you psi readings and is cheaper.

 

[MechanicNamedJohn]

A pressure transducer is nice. But a compression tester give you psi readings and is cheaper.

You can easily calculate the psi, some programs automatically do it. My transducer cost me $20.00.

Plus you could see back pressure issues, stuck/open/leaking valves, etc; you could also sync the igntion and see if there are any timing issues.