604 brake calipers on a 505
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  1. #1
    1000+ Posts silverexec's Avatar
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    604 brake calipers on a 505

    I'm going to change my front calipers next week and was intending to buy a pair of 505 Teves calipers to replace my crappy Bendix ones.

    The thing is, one day I'd like to get ventilated front rotors which can only be used with 604 calipers. Can 604 calipers be used with the standard 505 solid rotors I have now?

    It would save me from buying the 505 ones now and then having to dump them later on for the 604 ones.

    Cheers,
    Richard

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    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

  2. #2
    Budding Architect ???? pugrambo's Avatar
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    you can buy new vented/grooved or just vented 604 rotors from DBA or order them through your local repco outlet as they are stockists for DBA
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  3. #3
    Gone Fishin' Ray Bell's Avatar
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    Putting some packing (securely... ie, weld it) behind the pads might enable you to do it...

    Best bet would be to put an old backing plate behind the pads you instal. You'd only need to put a couple of tack welds top and bottom and you'd be right. Of course, you'd have to clean all the remaining pad material off the backing plate.

  4. #4
    1000+ Posts silverexec's Avatar
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    pugrambo:
    you can buy new vented/grooved or just vented 604 rotors from DBA or order them through your local repco outlet as they are stockists for DBA
    Cool, the problem is I can't afford to get them at the moment... Hence the plan to get the calipers now and the rotors later.

    Ray, thanks for the tip. By welding on some backing plates to the pads, is there a chance of introducing some negative traits like vibration or squealing?

    Cheers,
    Richard
    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

  5. #5
    Gone Fishin' Ray Bell's Avatar
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    Grease the sides and backs of the pads if there is... that fixes that.

    If you get them nice and flat on the back of the new pads you should be right... put them into a vyce to weld them. Their sole purpose is to prevent the pads from falling out once they wear too far for the retainers and to prevent the pistons popping out.

    In other words, you're making up for the reduced thickness of the disc by putting more meat onto the pads. You'll find there's a bit of a safety margin there.

  6. #6
    1000+ Posts silverexec's Avatar
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    Ok then. I'll probably go ahead with it, but some other financial issues have cropped up so I won't be doing it for a while.

    Thanks for the help.

    Richard
    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

  7. #7
    1000+ Posts silverexec's Avatar
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    Just to confuse things a little more...

    I called up the guys at EBC to find out the price of 604 pads (and to cancel my order for 505 Teves pads), and was told that the 604 and 505 Teves pads have the same order number. In other words, the pads are identical. question

    Wouldn't this mean that the calipers are the same?
    Or is the 604 caliper actually wider (to accomodate the ventilated rotors) while still using the same pads?

    Cheers,
    Richard
    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

  8. #8
    Gone Fishin' Ray Bell's Avatar
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    It has to be wider...

    Actually, I think Dave McBean posted something about this a few weeks back.

    Could be wrong...

  9. #9
    Guru davemcbean's Avatar
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    Ray Bell:
    It has to be wider...

    Actually, I think Dave McBean posted something about this a few weeks back.

    Could be wrong...
    Yeah, I did. The calipers are almost identical except for the fact that the 604 version is wider to accomodate the wider discs. So spacers are needed as Ray mentioned, if you want to fit the wider caliper to the solid disc.

    Dave

    <small>[ 15 July 2003, 10:00 AM: Message edited by: davemcbean ]</small>
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  10. #10
    1000+ Posts silverexec's Avatar
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    Aha, so ordering in those 505 pads wasn't a waste of time.

    Thanks for the info, hopefully I'll be able to get things going over the next few weeks.

    Cheers,
    Richard
    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

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