 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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| ChrisFoley |
Jul 1 2008, 12:54 PM
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#2
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I am Tangerine Racing Group: Members Posts: 7,992 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
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Make sure the cylinder you are testing is at TDC compression stroke. Screw the hose into the spark plug hole. Attach to the hose on the tester. Connect the inlet to your compressor hose, then dial in 100psi on the high side gauge. The difference between 100 and the reading on the second gauge is the percent of leakdown. At inlet pressures below 100psi you have to do a little math to derive the %.
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Posts in this topic
Cevan Cylinder leakdown tester Jul 1 2008, 12:50 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 Cevan Quick update: I noticed that the leakdown gauge wa... Jul 3 2008, 04:37 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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