Jump to content
Ultimate Subaru Message Board

DIY Leak down tester


Carl B.
 Share

Recommended Posts

I attached an image of a leak down tester I made to find the right motor for my EJ swap.  Also the link to a forum that has a writeup to build your own.  Mine is a little different because I used some things I already had in my tool box.  I havent used it yet but I'm going to check out an engine candidate today, I'll let you  know how it works.

 

http://forums.bimmerforums.com/forum/showthread.php?t=1421365

post-31957-0-44483600-1370803370_thumb.jpg

Link to comment
Share on other sites

nice hit, i've been wanting a leak down set up to put compressed air in the cylinders. 

 

ring and valve issues are rare on EJ engines but at least you can rule those out, can't really test the main concerns like bearings.

 

don't forget  www.car-parts.com, i guess you're in colorado which has some high pricing for Subaru's but i've paid $150 - $300 for EJ18's and EJ22's with a warranty and 125,000 miles or less.

Link to comment
Share on other sites

Leakdown doesn't need to be done at TDC.....just valves closed.

 

Infact, if an engine has good compression, putting air to it will force the piston down to the bottom.

 

Wanna really test?....install the leakdown tester with a cylinder bottomed out, then turn the crank with a wrench fairly quickly.......It should try to "bounce" back.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...