Compression tester is this a ok one?

[phobo]

Hey getting a rx7 with possable low compression is this tester ok to check with
http://www.screwfix.com/prods/16856/Van-Car-Accessories/Mechanics-Tools/Laser-Compression-Tester?cm_mmc=GoogleBase-_-Datafeed-_-Van%20and%20Car%20Accessories-_-Laser%20Compression%20Tester

Cheers Daniel

[clive]

Looking at the picture it has a decompression button on the side which is ideal,

Use this in conjunction with the thread on this link but please bear in mind that this is only a guide

At the end of the day if the car fires up immediately after standing for 10mins after a run then compression should be fine,

When viewing an RX-7 more attention should be paid to the water system than compression as more engines are lost overall due to water seal problems,

Once again take it for a run, make sure there\'s no water loss when it cools down and also listen for a gurgling noises when its turned off, if the car experiences either, walk away

Hope this helps

[phobo]

Hey I don\'t mind what the engines like as I\'m gunna rebuild it anyway but would like to make sure it\'s that before I rip it apart lol