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How to time cams on DOHC engine

Discussion in 'Daihatsu Hi jet' started by Matt123, May 31, 2017.

  1. Matt123

    Matt123 New Member

    I'm working on a 1997 HiJet with the EF-GS engine. I have the service manual but it doesn't really have much for the twin cam engines.

    Bought it in pieces, rebuilt the engine but I'm getting low compression.
    All valves have clearance and rings are new so i'm pretty sure its the timing. crank mark is simple enough but not sure about the cams.

    Each cam gear has two marks maybe 5 teeth away. Anyone know for sure how to correctly align them? Can post pics if it helps
  2. Matt123

    Matt123 New Member

    Did a leak down test, air is escaping through intake valves (yes I have valve clearance).

    Looks like I'll be pulling head back off.
  3. Matt123

    Matt123 New Member

    Turns out to be a warped head. Not sealing between cylinders.
  4. Acerguy

    Acerguy Moderator Staff Member

    Sorry I can't help with your initial question but thanks for posting followups! Hopefully it can ultimately add to the body of knowledge here. Good luck!

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