DiY Compression Testers?! They any good
Thread Starter
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Postmaster
Joined: Aug 2004
Posts: 3,392
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From: Greenvile, SC
DiY Compression Testers?! They any good
Has anyone tried one of thos DIY Compression testers that you can purchase from like AutoZone or Advance Auto?.... Second ....how accurite are they?
(may try one out on my '99 Ranger 3.0L)
Thnx in Advance...
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(may try one out on my '99 Ranger 3.0L)
Thnx in Advance...
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Senior User
Joined: Oct 2004
Posts: 482
Likes: 2
Compression testers are hardly rocket science items. It is a pressure gauge with a one way valve to hold max pressure and a pressure release to reset it.Accuracy is not a big deal as most compression specs are pretty broad. Most of the time you are comparing one cylinder to another or to a previous reading. The important part of these testers is the adapters to thread into the spark plug hole. Don't get one of the testers where you have to hold a rubber plug against the hole to get the reading. The ones I like the best have a quick release fitting between the adapter and the gauge so I don't have to struggle with twisting the whole assembly to thread it into the spark plug hole. The one I have is a Craftsman but it is 25 years old, not sure if Craftsman is still any good for these.
