Results 1 to 4 of 4
  1. #1
    xplayer2885's Avatar
    Join Date
    Sep 2006
    Location
    LI, NY
    Posts
    1,251
    +1
    43

    leake down tester

    Can i make a leak down tested out of some brass T fittings, an a air guauge, then hook it up to my compressor an pump the engine up to 10psi? In theory it should work.


  2. #2
    Race, wreck, repeat delagem's Avatar
    Join Date
    Aug 2006
    Location
    Homer, NY
    Posts
    728
    +1
    2
    Sure will! That's mine, just $7 worth of parts at NAPA, and my fancy pressure gauge. If you unscrew the business end of most pressure gauges, you'll find a 1/4" NPT thread fitting, makes it easy! Hardest part of the whole deal is finding a gauge that will read accurately at the low pressures necessary. McMaster Carr sells tons of 'em.

    Speaking of pressure, be sure to dial your compressor WAY down before you do this, don't wanna overpressurise your cases. I use a small inline regulator for this, but it's not necessary, just turn the line pressure gauge down on your compressor, and bleed the hose down before you start.

    Here's a pic of my setup:
    Last edited by delagem; 02-04-2008 at 10:44 PM. Reason: where's my darned pic?

  3. #3
    Race, wreck, repeat delagem's Avatar
    Join Date
    Aug 2006
    Location
    Homer, NY
    Posts
    728
    +1
    2
    Lets try this again:

    http://image1.frappr.com/pix1/i/2007...96c0_large.jpg
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	DSCN1748.JPG 
Views:	40 
Size:	842.0 KB 
ID:	56229  

  4. #4
    Lake Mead Bum & BTLS Mark starflight's Avatar
    Join Date
    May 2007
    Location
    Boulder City, NV
    Posts
    3,364
    +1
    1
    I used a low side acetylene guage.(1/8" pipe thread) Measures 0-15 psi before the red area. 15 is in the middle of the guage, and should be pretty accurate.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. HF Leak down tester
    By Ken62465 in forum 4-Tec Performance
    Replies: 9
    Last Post: 11-13-2015, 10:42 PM
  2. Leak Down Tester On Sale.
    By beerdart in forum 4-Tec Performance
    Replies: 3
    Last Post: 09-01-2011, 12:07 PM
  3. DIY Leak Down Tester
    By beerdart in forum 4-Tec Performance
    Replies: 2
    Last Post: 08-14-2011, 07:32 AM
  4. Leak down tester for 65U wanted
    By Mpeavler in forum Yamaha Classifieds
    Replies: 5
    Last Post: 07-07-2009, 04:25 AM
  5. Leak down test
    By Red Devil in forum 4-Tec Performance
    Replies: 35
    Last Post: 10-11-2006, 07:48 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •