 Harbor Freight Leakdown tester, How does it work, or is mine just FUBAR? |
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| VaccaRabite |
 Mar 15 2008, 09:51 PM
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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 |
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| sww914 |
Mar 16 2008, 12:01 AM
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
I had the same one and I had the same results as SLITS, 35% - 40% leakdown on an engine with a fresh valve job and new rings. I kind of treated it like a compression test, relative numbers not absolute numbers. I got a better one for 3X the money.
Yes, set it to zero before you hook it up to the engine. |
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Posts in this topic
Vacca Rabite Harbor Freight Leakdown tester Mar 15 2008, 09:51 PM
SLITS As I remember, you set it to zero before hooking i... Mar 15 2008, 11:26 PM
Vacca Rabite
Before you disconnect from the engine, bleed the... Mar 16 2008, 08:11 AM Gint I haven't tried their leak down tester. I did... Mar 16 2008, 08:06 AM Vacca Rabite I took it back.
What should I look for in leak d... Mar 16 2008, 02:14 PM scotty b IMO Harbor Frieight is in the total junk catagory ... Mar 16 2008, 02:44 PM Vacca Rabite B)-->QUOTE(scotty b @ M... Mar 16 2008, 06:00 PM
biosurfer1 I wouldn't trust anything important to a HF to... Mar 16 2008, 02:58 PM
Dr Evil I needed my dial gauge today (that I let you use a... Mar 16 2008, 06:56 PM
Vacca Rabite
Zach, the engine should be ready to go in next we... Mar 16 2008, 08:14 PM
Dr Evil Oh ya, Easter (duh). I am also freeish on Sat afte... Mar 17 2008, 03:28 AM
plas76targa Mike, PM me if you end up doing this on Saturday. ... Mar 17 2008, 07:18 AM
Dr Evil
Mike, PM me if you end up doing this on Saturday.... Mar 22 2008, 04:14 PM
plas76targa :confused: No problem. We did some family stu... Mar 22 2008, 05:22 PM
Vacca Rabite Well the leakdown tester that I got from Ebay show... Mar 19 2008, 09:38 PM
LS6/914 Dont forget to lock the flywheel in TDC as the air... Mar 22 2008, 08:16 PM
biosurfer1 I wouldn't trust anything important to a HF to... Mar 16 2008, 02:58 PM Dr Evil I needed my dial gauge today (that I let you use a... Mar 16 2008, 06:56 PM Vacca Rabite
Zach, the engine should be ready to go in next we... Mar 16 2008, 08:14 PM Dr Evil Oh ya, Easter (duh). I am also freeish on Sat afte... Mar 17 2008, 03:28 AM plas76targa Mike, PM me if you end up doing this on Saturday. ... Mar 17 2008, 07:18 AM Dr Evil
Mike, PM me if you end up doing this on Saturday.... Mar 22 2008, 04:14 PM plas76targa :confused: No problem. We did some family stu... Mar 22 2008, 05:22 PM Vacca Rabite Well the leakdown tester that I got from Ebay show... Mar 19 2008, 09:38 PM LS6/914 Dont forget to lock the flywheel in TDC as the air... Mar 22 2008, 08:16 PM |
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