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JDM/USDM Frankenengine swap questions

Discussion in '3sge' started by underscore, Apr 20, 2007.

  1. underscore

    underscore Well-Known Member

    Well I got the new engine and the throttle body has a bit of damage to it. So I was checking it over and realised that theres 2 vac lines on the old one that do not exist on the new one (the two on top closest to the firewall). Now I'm curious if I should just block these off with some caps or what? Should I try to move over the entire system the lines are hooked up to? I'm also wondering if the JDM throttle sensor would need to be moved over as well.

    On to the exhaust manifold, the old one has some rusting on it, so, again, I want to put my old one on it. The problem is that the new engine doesn't have that metal pipe that runs out the drivers side of the exhaust. I'm assuming I should just bolt/wled a patch over the opening in my exhaust?
  2. JoeJack88

    JoeJack88 Well-Known Member Super Moderator Donated!

    Those vac. lines our part of the egr system and if your gonna ditch then it wont hurt to block them off.....now for the hole..You could buy the block off plates for it or weld it up.
  3. malodin

    malodin Well-Known Member

    you should be able to find a pipe plug that threads into that egr hole on your exhaust manifold
  4. underscore

    underscore Well-Known Member

    I cant remember what egr is atm, something with the emissions, correct? cause we dont have aircare here and I dont have a cat anyways.

    so if I cut out a small metal plate and bolt it over the manifold opening, and then get some little rubber caps for the throttle body, I should be good to go? at least neither of those are permanent in the event they dont work.
  5. Mafix

    Mafix Owner Staff Member Administrator Donated!

    yeah you'll be fine.
  6. underscore

    underscore Well-Known Member

    perfect. I was slightly worried that I may have to move over all the junk it's connected to.

    next question: anyone know how hard it is to remove the old chopped harness without removing the intake mani?
  7. Mafix

    Mafix Owner Staff Member Administrator Donated!

    that's easy with the motor out.
  8. underscore

    underscore Well-Known Member

    alright good. the fewer gaskets I need to redo the better (exhaust mani and TB are 2 too many already).

    umm umm what else did I want to ask...

    oh yes, any special way to change the crank pulley/cam gears? I know that everything has to be lined up right when the new timing belt goes on but is there some way to make nothing move or at least marks I can line up?
  9. Mafix

    Mafix Owner Staff Member Administrator Donated!

    yes there is. with all the covers off and the crank pulley off, take a pair of vice grips and adjust them so that they barely move the cam gears together when you clamp them. then remove the tensioner and the belt. if the grips are installed right the cams should not move.
    NOTE: if you put the clamp on too tight you will damage the cam/bearings/seals, ect.
  10. underscore

    underscore Well-Known Member

    brilliant idea for changing the timing belt, I need to remove these cam gears and swap on my old ones however (the new ones have some rust on them from the exposure). is that possible without totally effing everything up?
  11. Mafix

    Mafix Owner Staff Member Administrator Donated!

    ok in that case get the motor on #1 TDC. then remove away. you'll be lining the cams up like the BGB says to .
  12. underscore

    underscore Well-Known Member

    perfect, thanks.

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