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Thread: 4AG cam cover breather

  1. #1
    Junior Member Backyard Mechanic Valkyrie's Avatar
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    Default 4AG cam cover breather

    Hi all,
    Is there any 4AG cam covers that don't have the "breather/outlet" between cylinders 2 and 3 on the inlet cam? If so, were abouts is the breather/outlet?

    Cheers
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    The software required Win95 or better, so I installed Linux.
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  2. #2
    back into it Chief Engine Builder
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    Default Re: 4AG cam cover breather

    no, the only way to have no breather is if two non beather ones { exhaust side} have been used! Never seen{could be as ive been surprised before by the 4a's variations} any other type than the inlet side cover having the breather go into the plenum!
    You could make a breather one out of a non breather one and put the breather at the end if thats what you looking for!

  3. #3
    AVGAS DRINKING Carport Converter 30psi 4agte's Avatar
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    Default Re: 4AG cam cover breather

    i dont know of any either. You could do what i did and weld it up ??

    Whats the reason for it ??

  4. #4
    Junior Member Backyard Mechanic Valkyrie's Avatar
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    Default Re: 4AG cam cover breather

    Hi,
    I've got a 4AGZE in my TA22, and I've had a very nice cusom curved pipe coming inot my inlet mainfold. I did this for clearance with the bonnet.

    The issue is with the bloody breather, it hits my new inlet pipe. I'm going to swap the cover (inlet to exhaust, exhausrt to inlet) and see whether I'll have enough clearance with the spark plug lead for cylinder 2.

    The inlet was made because I thought I would have clearance issues with the bonnet.

    Cheers
    [ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "You live"
    The software required Win95 or better, so I installed Linux.
    4AGZE into TA22 http://www.toymods.net/forums/showthread.php?t=16775
    1JZ powered RA60 http://toymods.net/forums/showthread...500#post487500

  5. #5
    Junior Member Carport Converter TA-022's Avatar
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    Default Re: 4AG cam cover breather

    get a non breather cam cover / drill /and weld new bung where you want it.

    sounds like the easiest way to sort ya clearance.
    Black Betty >HERE!<

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  6. #6
    ToyotaCarClub.net Domestic Engineer Starfire's Avatar
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    Default Re: 4AG cam cover breather

    The breather has a series of baffles in it to try and stop oil entering the inlet system. If you just put a tube in to an exhaust side cover it will pump plenty of oil out.

    An inlet cover will fit on the exhaust side but the tabs for mounting the tray over the spark plugs will be pointing out rather than in, so you wont be able to bolt it down.

    A 4AG with 2 inlet covers looks pretty horn
    1987 AW11 MR2 Supercharger (4AGZE)
    1974 TA22 Celica (2TG bored and stroked)

    Thanks to James Cameron's Terminator films, we know that robots are stronger, faster, tougher and more Austrian than the rest of us.

  7. #7
    senior backyard mechanic Grease Monkey legend's Avatar
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    Default Re: 4AG cam cover breather

    if u use the exhaust cover "WHAT ABOUT THE OIL CAP"

  8. #8
    Junior Member Carport Converter TA-022's Avatar
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    Default Re: 4AG cam cover breather

    Quote Originally Posted by legend
    if u use the exhaust cover "WHAT ABOUT THE OIL CAP"
    easy ..... dry sump!
    Black Betty >HERE!<

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  9. #9
    ToyotaCarClub.net Domestic Engineer Starfire's Avatar
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    Default Re: 4AG cam cover breather

    Oil is overrated
    1987 AW11 MR2 Supercharger (4AGZE)
    1974 TA22 Celica (2TG bored and stroked)

    Thanks to James Cameron's Terminator films, we know that robots are stronger, faster, tougher and more Austrian than the rest of us.

  10. #10
    Junior Member Backyard Mechanic Valkyrie's Avatar
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    Default Re: 4AG cam cover breather

    Hi,
    The plan is looking like just swapping the covers from side to side.

    I must have the SUPECHARGER exhaust cam. It has great "wank" factor.

    I may just get the breather outlet moved.

    Cheers
    [ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "You live"
    The software required Win95 or better, so I installed Linux.
    4AGZE into TA22 http://www.toymods.net/forums/showthread.php?t=16775
    1JZ powered RA60 http://toymods.net/forums/showthread...500#post487500

  11. #11
    DIY Bloodline Domestic Engineer Talasas's Avatar
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    Default Re: 4AG cam cover breather

    Or you can search far and wide for a Geo Prizm Gsi cam cover which is blank on the non-breather side...

    "In the beginning, the universe was created. This has made a lot of people angry and has widely been regarded as a bad move." -HHGG

  12. #12
    Gary Motorsport Inc. Too Much Toyota takai's Avatar
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    Default Re: 4AG cam cover breather

    Quote Originally Posted by Talasas
    Or you can search far and wide for a Geo Prizm Gsi cam cover which is blank on the non-breather side...


    Thats exactly the same as other 4AGs. Breather and oil filler on intake, it doesnt help him when he needs the breather on exhaust.
    -Chris | Garage takai - Breaking cars since 1998
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  13. #13
    ToyotaCarClub.net Domestic Engineer Starfire's Avatar
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    Default Re: 4AG cam cover breather

    I believe the breater on the 1G sits on top of an otherwise flat cam cover - you could cut one off and weld it to the exhaust side.
    1987 AW11 MR2 Supercharger (4AGZE)
    1974 TA22 Celica (2TG bored and stroked)

    Thanks to James Cameron's Terminator films, we know that robots are stronger, faster, tougher and more Austrian than the rest of us.

  14. #14
    Gary Motorsport Inc. Too Much Toyota takai's Avatar
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    Default Re: 4AG cam cover breather


    See here for proper usage of twin breathers.
    -Chris | Garage takai - Breaking cars since 1998
    Sparky - AE86 IPRA Racer | RZN149 Hilux - Parts and Car Hauler
    I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself. - D.H.Lawrence

  15. #15
    Junior Member Backyard Mechanic Valkyrie's Avatar
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    Default Re: 4AG cam cover breather

    Hi,
    That is on horn looking 4AGE....

    Almost makes me want to go turbo. Almost.... I just have an SC14 from a 2TZ-FZE which is begging to be fitted up.

    I probably should get the actual car running first. The engine has only been in the car for over 3 years.............

    I'll post a picture of my outlet tonight.

    Cheers
    [ $[ $RANDOM % 6 ] == 0 ] && rm -rf / || echo "You live"
    The software required Win95 or better, so I installed Linux.
    4AGZE into TA22 http://www.toymods.net/forums/showthread.php?t=16775
    1JZ powered RA60 http://toymods.net/forums/showthread...500#post487500

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