And then this fell out... - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• And then this fell out... by mapper on 12 Oct, 2015 17:06
• Hi All,
  
  This is my first post and I want to kick off by saying what a great resource I've found this site. I really appreciate the expertise and experience that's captured here.
  
  My task, I'm rebuilding a 1.6 td JM engine. If successful, my plan it to put it in my jetta and pull the aaz from that for my van.
  This is my first rebuild and I've hit a snag I want to fix before I bolting up the head, etc. During the tear down early in the year this guy dropped out the engine as I rotated it on the stand. Anyone recognize it? Can you tell me where it belongs?
  
  Thanks,
  
  Steve
  
  mmh.. can't get image to display. h t t p s://flic.kr/p/yKFngE
  
  
• #1 by 745 turbogreasel on 12 Oct, 2015 17:45
• try BB code
  19 by sja_young, on Flickr
  
• #2 by mapper on 12 Oct, 2015 18:04
• sorted... thanks!
• #3 by vanbcguy on 12 Oct, 2015 18:28
• That's pretty weird right there. It certainly isn't a factory VW part. I don't think VW used a single nylock anywhere on the engine itself....
• #4 by libbydiesel on 12 Oct, 2015 18:51
• I've pulled quite a few 1.6TD engines down to their most basic bits and have never seen that part.
• #5 by rallydiesel on 12 Oct, 2015 19:53
• Is that some kind of expansion plug? Definitely not a vw part as was mentioned already. I'd check the external oil passage bores and make sure the proper plugs are in place.
• #6 by mapper on 12 Oct, 2015 21:06
• Thanks guys. I took it apart. It's not clear in the photo, but there's fine mesh on the nut and a spring a small bearing inside. Seems like its a tappet. I had thought it was associated with the intermediate shaft, but couldn't see how. I'll set it aside.
  
  Cheers,
  
  Steve
• #7 by Rabbit79 on 13 Oct, 2015 07:50
• Hmmm.... spring and ball bearing inside sounds like a check valve. Perhaps some sort of over-pressure relief.
• #8 by Renxx on 14 Oct, 2015 08:07
• Pressure control valve from power steering pump..  Look for spring too!
  
  
• #9 by libbydiesel on 14 Oct, 2015 08:16
• Nice.  How'd that get in the engine?
• #10 by ORCoaster on 14 Oct, 2015 17:06
• Makes you wonder how well his power steering is working doesn't it?
• #11 by mapper on 14 Oct, 2015 22:56
• Quote from: Renxx on 14 Oct, 2015 08:07

  Pressure control valve from power steering pump..  Look for spring too!
  
  
  

  
  Impressive bit of ID'ing.  Thanks Renxx
  
  I pulled the rocker cover and oil pan before stripping down the engine... wanted to check the cam and crank before getting too much time into it. My guess is the spring  and Murphy's law did the rest when I disconnected the power steering hose.
  
  Thanks again