1. Home
  2. Volvo automobiles
  3. J Sweet: brakes and water pump problems....

J Sweet: brakes and water pump problems....

Am changing the front disk brakes and the water pump for the first time on the 92 740 turbo. Actually the brake situation is the result of replacing the left front strut cartridge.THe strut replacement went easy! THought it a good idea to replace the pads while the caliper is off. At first, I put the supplied shims onto the new pads. However, although I have the piston retracted *all* the way, I very nearly never could get the caliper on fully, and both bolts back in. It seems that with the thickness of these new pads, the shims were just causing a problem making it too thick! I noticed that the pads were dragging on the rotor making a continuous scraping sound. I peeled off both shims and put caliper back on. now at least I easily got both caliper bolts back in, as there is a slight amount of play now. But the scraping noise from the pads was just as bad. I was able to reach in with my finger and push the outside pad out a bit, this lessened the scraping at least from that one, but I can't do the same trick with finger on the inner one. I had no such problem with the pads scraping--- either before or after refilling with brake fluid--- when I did the disc brakes on my Camry....I must be missing something. Its like there needs to be a spring pushing the pads outward a little when no pressure is exerted on them by the piston.

Headache #2.... the water pump: Got a new one ready to go in. It looks like it would be extremely difficult to perhaps impossible to get it unmounted without taking the pulley off first. But even when the PS pump is adjusted for a really tight belt, when I try to loosen the bolts on the pulley, the belt slips/pulley turns. (I sprayed PB Blaster penetrant on them....have run out of Kroil) It looks like MAYBE i could get all the 10mm bolts loosened with a u-joint adapter on the socket, but I am not sure. I'd have to go buy one to find out. Depends on how extremely torqued down those are. (the timing belt cover is off allowing access to the bolt on the left side) And when I do get the pulley bolts off, is it still going to be pressed tight on the shaft? Thanks, Geronimo

Reply to
geronimo
Loading thread data ...

Hard to say without looking at it, but some disc to pad contact is normal, just drive it around a bit and the new pads will wear down slightly and should stop rubbing. I don't recall any particular difficulties but then I've done very few non-Volvo brakes.

Sounds like these got really tight or a bit rusted. You should be able to get them out by using two 10mm box end wrenches. Just wedge a screwdriver between the shaft and one of the other bolt heads, or use two 10mm wrenches on two adjacent bolts and squeeze them together. I've also had some luck locking stubborn pulleys by wrapping a junk belt around it and cinching it up with a pair of vice grips. Sometimes a pipe slipped over a ratchet handle works wonders to provide that extra leverage.

Reply to
James Sweet

James I tried the screwdriver- lock trick on the water pump pulley bolts, it didn't work. The screwdriver would always slip because the screws stick out so little (and the shaft too). Found a trick that did work well! You just jam a 1 in. wood chisel up into the inside of the pulley hub, going in from above the radiator inlet. it jammed up against the inner front face of the pulley, into the bolts protruding on the inside, and locked it up.Then it was easy to get the bolts out with a box-end.

YOu don't know where I could get a real heavy-duty elect. fan for this car do you? The shroud got lost long ago, and the original fan went bad...I robbed the one out of my Camry. It's almost the same physical size, but I think it is a bit undersized for the bigger turbo engine in the Volvo....when stopped at a light in hot wather, it tends to creep up like it might even hit the redline, if I idled long enough. The old pump really looks OK, now that its out and I could look inside it. You still had that OD solenoid lying around, perhaps you got a fan, too?

Geronimo

Reply to
geronimo

You can get electric fan kits at any autoparts store, I've seen people install them on 240 Turbos and they work fine. All the Volvos I've dealt with have mechanical engine driven fans so I don't have any direct experience with this, or electric fan stuff kicking around. You could check ont he price of an OEM replacement as well, though I suspect the cost might be astronomical.

Reply to
James Sweet

Check this link:

formatting link
joe

Reply to
joe

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.