Harbor Freight Leakdown tester, How does it work, or is mine just FUBAR? |
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Harbor Freight Leakdown tester, How does it work, or is mine just FUBAR? |
VaccaRabite |
Mar 15 2008, 09:51 PM
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#1
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En Garde! Group: Admin Posts: 13,465 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
So I took out the new HF leak tester to play with it.
I just put on the 3/4 bank of pistons/cylinder and torqued down the head. Get N03 to TDC. Pull the tester out of the box, and the leak gauge is showing about 40% leak before I even plug it in. OKay, so I read the instructions, as this looks like it works differently from the last tester that I used. Directions say to hook it up to the engine. Then depresurize the regulator until the leak dial hits zero. Then it should give me a percentage loss. Huh? There has to be somehting else I do to show the percentage loss. I have not changed the tool from setting it to zero. Tool 1, Zach 0 Someone that has used one of these things please pipe in. What am I not doing. Zach |
LS6/914 |
Mar 22 2008, 08:16 PM
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#2
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Never leaves the shop member Group: Members Posts: 301 Joined: 1-October 03 From: Port Townsend,WA Rivabelosa/Madrid ESP Member No.: 1,215 Region Association: Pacific Northwest |
Dont forget to lock the flywheel in TDC as the air pressure will usually counter rotate the piston giving a false reading (IMG:style_emoticons/default/headbang.gif) Larry
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