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Thread: PUTTING A 4G64 DOHC TIMMING BELT

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  1. #1
    I'm about to put the 4g64 dohc timming belt, using the 4g64 cam gears, do some one know how to intsall the timmingbelt it?
    I have the 4g64 with 4g63 head

  2. #2
    Senior Moderator DOHCstunr's Avatar
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  3. #3
    Quote Originally Posted by DOHCstunr
    But DOHCstunr,is that alos when using the 4g64 camgears?

  4. #4
    phizz2k
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    Why not just use the 4g63 cams? I don't see how you could be using a 4g64 cam gear because those are made for sohc engines which would be bigger.

    I may be wrong but it just dosen't sound right to use a camgear made for a single overhead engine on a dual overhead engine.

  5. #5
    Senior Moderator DOHCstunr's Avatar
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    Quote Originally Posted by microgalant
    But DOHCstunr,is that alos when using the 4g64 camgears?
    you are using th 4g64 dohc cam gears yes?

    if so, then the procedure is identicle to that of 4g63.

    just set the crank to tdc. make sure that the cam gears line up when the cxrank is at tdc,
    make aure your oil pump sprocket is phased properly, and then set the tension on the belt.
    crank it over a few times by hand.
    let it sit for about 20-30 minutes.
    then check the tension.

    if all is good then throw your timing cover back on, install the motor mount and fire it up.
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  6. #6
    Quote Originally Posted by DOHCstunr
    you are using th 4g64 dohc cam gears yes?

    if so, then the procedure is identicle to that of 4g63.

    just set the crank to tdc. make sure that the cam gears line up when the cxrank is at tdc,
    make aure your oil pump sprocket is phased properly, and then set the tension on the belt.
    crank it over a few times by hand.
    let it sit for about 20-30 minutes.
    then check the tension.

    if all is good then throw your timing cover back on, install the motor mount and fire it up.
    Dohcstunr,I have 2 sohc cam gears,can i use those?or can I use the 4g63 ones???

  7. #7
    Senior Moderator DOHCstunr's Avatar
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    Quote Originally Posted by microgalant
    Dohcstunr,I have 2 sohc cam gears,can i use those?or can I use the 4g63 ones???
    idk that anyone tried to run two sohc cam gears.

    yoru best bet woudl be to either A get a set of adjutable cam gears adn dial in the difference,
    or b,
    just go to the dealer or SlowBoyracing.com and get the actual 4g64dohc cam gears.

    you can use the 4g63 cam gears but you have to clock them differently to account for the taller deck highet of the 4g64 block.
    and after that, you have ot make new timing marks on those gears so you will be able to check your timing down the road.

    intake
    http://www.slowboyracing.com/more.php?id=3765&
    exhaust
    http://www.slowboyracing.com/more.php?id=3766&

    (optional)
    while you are down there you can delete your balance shafts

    http://www.slowboyracing.com/more.php?id=1114&
    or if the engine in still in the car,
    http://www.slowboyracing.com/more.php?id=1116&

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  8. #8
    DOHCstunr what difference does a 4g64 dohc and a 4g64 sohc camgears have?
    I've put a 4g63 timmingbelt on my 4g64 block and 4g63 head,it seems that it fut but.
    i didn't time or tight it yet
    A 4g63 head 153 teeth,how much does a 4g64 dohc timmingbelt have?

  9. #9
    Senior Moderator DOHCstunr's Avatar
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    Quote Originally Posted by microgalant
    DOHCstunr what difference does a 4g64 dohc and a 4g64 sohc camgears have?
    I've put a 4g63 timmingbelt on my 4g64 block and 4g63 head,it seems that it fut but.
    i didn't time or tight it yet
    A 4g63 head 153 teeth,how much does a 4g64 dohc timmingbelt have?
    i'm not sure on that... ask peanotation

    the thing is you will need the 4g64 timign belt... no exception. the deck on the 4g64 is actually like 8mm taller or something.
    i don't remember the exact number.
    although your 4g63 belt may fit, you won't have the range of sl;ack that the auto tensioner needs to operate properly... and trust me you want it operating properly.

    but ask peanotation. he knows the details
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  10. #10
    You are here entirely tooo much!! peanotation's Avatar
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    now that i think about it, i'm pretty sure the SOHC cam gears are different than the DOHC ones, because the DOHC ones are a lot smaller than the SOHC ones.

    so to answer your question, no.
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  11. #11
    Quote Originally Posted by peanotation
    now that i think about it, i'm pretty sure the SOHC cam gears are different than the DOHC ones, because the DOHC ones are a lot smaller than the SOHC ones.

    so to answer your question, no.
    the cams from the sohc are the same as the dohc from a 4g63,but different marks

  12. #12
    Senior Moderator DOHCstunr's Avatar
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    Quote Originally Posted by microgalant
    the cams from the sohc are the same as the dohc from a 4g63,but different marks
    if you have to be cheap do what you have to do,

    me myself,
    woudl rather spend a dollar or two to get the proper gears or perhaps some adjustable ones that woudl elp me out in the futre.
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  13. #13
    You are here entirely tooo much!! seth98esT's Avatar
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    I have a set of 1g cam gears I will give you for free if you pay me shipping.
    7g for life!

  14. #14
    Senior Moderator DOHCstunr's Avatar
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    Quote Originally Posted by seth98esT
    I have a set of 1g cam gears I will give you for 30 bucks plus shipping.
    wow thats a pretty good deal seth.
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  15. #15
    Experienced TGC Member milo111000's Avatar
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    wow somebody's busy.. 4g63 on 4g64?? look what you (stunr, peano) all have created!!!

  16. #16
    Quote Originally Posted by seth98esT
    I have a set of 1g cam gears I will give you for free if you pay me shipping.
    I have the 4g63 camgears already,i just wanted to see a 4g64 dohc camgear to see the marks on it so I can mark the 4g63 teh same,
    I've got a 4g64 timingbelt belt here in Aruba,it has 154 teeth,4g63 has 153,so thats 8mm less

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