 Cylinder leakdown tester, Simple question |
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| Cevan |
 Jul 1 2008, 12:50 PM
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#1
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Senior Member  Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351  |
I recently acquired another 'teener. See video here.
I have a leakdown tester like the one pictured below. The included instructions are pretty worthless. There is a hose extension that screws into the spark plug hole in the head. The other end connects to the gauge. My question is, do I add air from my compressor and use the regulator on the tool to set the leakdown gauge (on the right) to 0% and then connect it to the piece of hose, or do I assembly everything together and then add air? I tried the latter method and used the regulator to adjust the leakdown gauge to 0% and then it never went down.  |
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| Cevan |
Jul 3 2008, 04:37 PM
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#2
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Senior Member Group: Members Posts: 1,079 Joined: 11-December 06 From: Western Massachusetts Member No.: 7,351 |
Quick update: I noticed that the leakdown gauge was getting pegged (0% leakdown) when I had only 15 psi into the cylinder. So I replaced the leakdown gauge with a regular 100 psi gauge. I tested the gauge by putting 100 psi to the gauge and both needles swept to max together.
So I warmed up the motor, connected the gauge, added 100 psi to the cylinder and the leakdown gauge read 97 psi. The other three cylinders read 97, 96, and 95. Now I know that's not a race motor sitting in there, so I think I'm still without useful data on this motor. Maybe the PO before the guy I bought it from had just rebuilt the motor and it's got no miles on it. (IMG:style_emoticons/default/confused24.gif) |
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Posts in this topic
Cevan Cylinder leakdown tester Jul 1 2008, 12:50 PM
Racer Chris Make sure the cylinder you are testing is at TDC c... Jul 1 2008, 12:54 PM SLITS That's the $39.00 setup from Harbor Freig... Jul 1 2008, 06:25 PM Jake Raby Ensure the engine is warm and test each cylinder a... Jul 1 2008, 08:25 PM Racer Chris Oh, make sure the crank can't rotate while you... Jul 2 2008, 06:52 AM Vacca Rabite
I have a leakdown tester like the one pictured be... Jul 2 2008, 08:18 AM
Jake Raby
I have a leakdown tester like the one pictured b... Jul 2 2008, 12:12 PM Cevan I know that the HF stuff is not high quality, or e... Jul 2 2008, 12:35 PM ArtechnikA
I figured that if I bought a good one online for ... Jul 2 2008, 05:58 PM vsg914
You can buy a $50 drill press or a $50... Jul 2 2008, 06:34 PM Vacca Rabite
So I warmed up the motor, connected the gauge, a... Jul 3 2008, 05:45 PM Cevan
So I warmed up the motor, connected the gauge, ... Jul 3 2008, 06:12 PM Vacca Rabite Neither of the HF units I had worked that way, but... Jul 3 2008, 06:17 PM SLITS What he said is that he replaced the % leakdown ga... Jul 3 2008, 06:32 PM Cevan
What he said is that he replaced the % leakdown g... Jul 3 2008, 06:38 PM ArtechnikA
Is 3% to 5% realistic on a '74 2.0 of unknown... Jul 3 2008, 06:53 PM Vacca Rabite
What he said is that he replaced the % leakdown g... Jul 3 2008, 09:37 PM |
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