Bottom end reassembly - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Bottom end reassembly by wolfsburged on 06 Oct, 2010 19:10
• Hoping to beging putting the TD back together soon so a question seperate from the build thread.
  
  This will be my first real rebuild, so any tips or tricks appreciated. Have assembly lube!
  
  I opted for ARP hardware for mains, rods, and head bolts. I recall seeing posts about different torque specs for the ARP head bolts when using the ARP supplied lube. Do I need to do anything special on any of these three areas or just stick to the Bentley?
  
  Thanks,
  Bill
• #1 by theman53 on 06 Oct, 2010 19:47
• Stick with what ARP tells you.
  
  Except the head bolts. If you have the VW new ones I have no clue. The Cogsworth old ones that everyone is using before. Here is a thread that I will link that has "zukgod1 head torquing procedure" I went to 105lbs with my head bolts. I have an MLS 1.9L HG and wanted to make sure it was crushed good.
  
  I turned my block heater on 2 times and let cool each time before torquing. Took a couple days, but I don't have any issues in 800 plus miles.
  
  http://www.vwdiesel.net/forum/index.php?topic=21182.15   about mid page you'll see zuk's procedure. I did it very similar, but instead of running the engine I used a block heater so no combustion forces were on the HG
• #2 by VW Smokr on 07 Oct, 2010 02:29
• Quote from: theman53 on 06 Oct, 2010 19:47

  ... I did it very similar, but instead of running the engine I used a block heater so no combustion forces were on the HG

  
  Now that makes sense! Thanks.
  
  J.R.
  SoCal
• #3 by wolfsburged on 07 Oct, 2010 05:59
• I have the new ARP VW Diesel bolts. I guess not a lot of real world experience on them yet?
  
  Was going to swap to the TDI timing sprocket, but my machinist did not think it a wise choice to modify the end of the crank, and starting to loose serious amounts of free time to work, so I will be going with a new 1.6TD sprocket. Sticking with a v-belt arrangement so I imagine this will be fine.
  
  Good idea about using the block heater to heat cycle the thing. I will be installing a new block heater as well.
• #4 by R.O.R-2.0 on 07 Oct, 2010 08:30
• The TDi crank sprocket is never a bad idea, but its prully not that necessary on a 1.6TD.. the AAZ and tdi engines are the ones that got the crank wobble..
• #5 by gnavs on 07 Oct, 2010 08:43
• Agreed, you should be fine on a 1.6, but there's also no danger in machining your crank nose to fit a new pulley.