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Transplanting 2G Timing Belt parts to 1G?

Posted by squid267, Mar 24, 2013

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  1. squid267

    squid267 Proven Member

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    Joined Jan 14, 2012
    Worcester, Massachusetts
    Im doing a 6 bolt swap on my 2G. My 1G looks like this

    IMG_20130324_111656_zps9a1b92df.jpg

    Lots of rust. Cant I transplant the 2G Timing Belts parts, as in camshafts and pulleys, tensioner, sprockets etc to my 1g with out issue?

    2g timing side

    IMG_20130324_120215_zpsfb58da2c.jpg

    thanks
     
  2. rx7ttlm

    rx7ttlm Proven Member

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    Portland, Oregon
    It's been a while since I did the swap, BUT I know the tensioner is different between 1g/2g. The other thing I am questioning is the tensioner pulley, the one with the snake bite holes. If your 1g cams aren't rusted measure the max lobe thickness and compare to 2g,iirc there is like 0.020 more lift on the 1g cam and it's totally compatible with 2g.

    www.roadraceengineering.com/1g2gheadswaptechtip.htm
     
  3. pauleyman

    pauleyman DSM Wiseman

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    Tensioner pulleys are differnt.
     

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  4. 1Gina2G

    1Gina2G Proven Member

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    Beaufort, South Carolina
    tensioner pulleys are different but a 7 bolt pulley can be used on a 6 bolt block. The 2G tensioner is totally different then a 2g and will not fit, same for the tensioner's swing arm piece. there's apparently a 1mm difference in the idle pulleys. Not %100 on the cams but they look good anyways and I'd just use whatever style cams that the head is.
     
  5. rx7ttlm

    rx7ttlm Proven Member

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    Joined May 20, 2008
    Portland, Oregon
    I am 100% on the cams. Just as long as they are turbo cams in the 1g they are 0.010 more lift than the 2g. I double checked with the build list on road race's site.
     
    Last edited by a moderator: Jul 10, 2014
  6. JusMX141

    JusMX141 Moderator

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    1998 Mitsubishi Eclipse GST
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  7. BogusSVO

    BogusSVO Proven Member

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