86 740 2 part hub conversion

Discussion in 'Volvo 740' started by /g, Apr 24, 2009.

  1. /g

    /g Guest

    Hi folks, subject car is 1986 740 Turbo Intercooler.

    It still has the 1 piece rotor, and I need to convert to 2 piece.
    I have a frozen caliper, and don't want to spend money on the old setup.

    I have a 1988 740 GLE for parts. My plan is to remove the hubs from
    the 88 and put them on the 86.

    Will they fit?

    What can I expect during the conversion, and do I need additional parts
    other than the spindle nut and new cap?

    Do I remove everything from the 86 including the inner race, and then
    the
    2 piece hub from the 88 just slips on?

    Also, I read the brickboard stuff on the hubs, and I'm confused about
    what it says about a race slipping out of the hub, and you have to put
    it
    back and then hold it somehow during installation....????? Can someone
    translate that or expand on that for me?

    I'll also be doing the jumbo brake upgrade....

    thanks much, Glenn
     
    /g, Apr 24, 2009
    #1
  2. /g

    James Sweet Guest

    As I recall, 1988 has a larger spindle and different hub design, so if
    that's the case you will need to swap the whole strut assemblies. Pop
    the cap off the '88 and see if it has a castle nut with a cotter pin or
    the later style locknut.

    The older style has a conventional wheel bearing that you pack with
    grease and assemble. The later type uses ball bearings permanently
    mounted in the hub assemblies.
     
    James Sweet, Apr 24, 2009
    #2
  3. /g

    /g Guest

    The 86 Turbo has the old style 1 piece hub with adjustable/packable
    bearings.

    The 88 parts car has the new style 2 piece hub.

    I want to put the 88 hub on the 86. If the spindle is different, then
    no, the 88 part won't fit.

    I was hoping that things didn't change that much between years.
    I'll be tearing things down today and take a look.

    thanks, /glenn
     
    /g, Apr 25, 2009
    #3
  4. /g

    James Sweet Guest


    There are three different hub designs. There is the old one piece hub
    with the bearing races pressed into the hub which is part of the brake
    rotor. Then there is the updated hub with the bearing races pressed into
    a hub which is separate from the brake rotor, then there is the newest
    design starting in '88 or '89 in which the bearings are ball bearing
    units permanently installed in the hub which fits on a larger spindle.
    If your parts car has the original separate hub/brake assemblies that
    fit on the older spindle with conventional bearings then it's a straight
    swap.
     
    James Sweet, Apr 25, 2009
    #4
  5. /g

    /g Guest

    Excellent! That's the type of distinction I was looking for. I'll pull
    the hub
    off the parts car and see what bearings are in it.

    I did hit the 'yards this morning, and no older 740's around. I called
    the
    dealer and list is $145 each for the conversion hubs. I get a discount, so
    I'll
    pay a bit less than that if I go with the dealer. I have a couple of other
    options
    that I've run across that I need to check.

    Thanks for the info. /glenn
     
    /g, Apr 25, 2009
    #5
  6. /g

    James Sweet Guest


    Screw the dealer, the only time I ever set foot in there is when I need
    a part that is absolutely not available anywhere else. FCP Groton,
    alloemvolvoparts.com and one other that escapes me at the moment are
    where I get most of my parts.
     
    James Sweet, Apr 26, 2009
    #6
  7. /g

    /g Guest

    I've got a bit more information and another question. When I talked
    with the dealer
    a while ago, I got the part number for the hub that's used in the
    conversion. It is
    3516126, and costs about $140. In looking for a better price on that I
    found an
    alternative part on the swedish auto parts site. That part number is
    3516128 and
    costs about $65.

    The description gives the 128 number as used with vented rotors. The
    126 is used
    with vented rotors but says Girling (for the caliper?).

    http://www.swedishautoparts.com/740/Volvo-740-wheel-bearings-and-studs-and-hubs.html

    Can anyone tell me what the difference is between the two parts? I'll
    try to call swedish if I
    have time tomorrow.

    My intention is to use one of the above hubs with the jumbo brake
    conversion, using rotors
    and calipers intended for a 92 to 95 940. I believe those calipers are
    girling.

    thanks again for any help, /glenn
     
    /g, Apr 30, 2009
    #7
  8. /g

    James Sweet Guest


    It looks like that might be the whole hub and spindle assembly, not
    sure, I've never tried to remove the spindle to see if that's what it
    looks like.

    The wheel bearings for the older style hub look like 271703, and the
    later style hub with the integral bearings looks like 271645. My car has
    ABS, so that may be part of the confusion here.

    I recently had to replace the hubs on mine which came from a 1989 model
    as I recall, and the ABS tone wheels were not the same, I had to remove
    the wheels from the old hubs (ended up having to bore out the hub in a
    lathe to get them off intact) and then press them onto the new hubs.
     
    James Sweet, Apr 30, 2009
    #8
  9. /g

    /g Guest

    ...........previous messages cut ...................

    So, 2 months later, and I think I found a better solution.

    The conversion part was dealer only, for $140 per side. The $65 part is
    obsolete, no longer available.

    I finally found time to talk to the folks at a local 'yard, and he
    offered a
    full strut with rotor and caliper for $50 per side, or $100 total. I walked
    the
    yard, and found a 92 960 with what appears to be brand new rotors and pads.
    Not sure how old the calipers are, but I'm hoping they were replaced at the
    same time. I pulled them last saturday, now I just need to install them.

    The car getting these is a turbo and I had replaced the strut inserts
    with KYB's,
    so I'll transfer those and the springs from the turbo onto the new struts,
    and I should
    be all set from that point. Other than an alignment.

    Thanks for the help, /glenn
     
    /g, Jun 23, 2009
    #9
  10. /g

    James Sweet Guest


    If you have ABS on your car, make sure the tone wheels on the hubs are
    the same, they used at least two different types, one having many more
    teeth than the other. I don't know for certain, but I don't believe they
    are compatible.
     
    James Sweet, Jun 24, 2009
    #10
  11. /g

    /g Guest

    Thanks James. Nope, non ABS. And, being old-school, that's fine with
    me.
    Less crap to fail...........

    /glenn
     
    /g, Jun 25, 2009
    #11
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