No but sometimes it makes it easier
The serpentine belt is easily removed without removing the fan shroud This has to be accomplished by using a tensioner wrench
If there is any oil, power steering fluid, or antifreeze on your belts it may cause them to slip and squeak regardless of how new and how tight they are. If you have a fluid leak wetting the belts, this leak must be repaired. If the fluid contamination is from any type of oil (including PS fluid) the rubber of the belts may be damaged and the belts will have to be replaced after repairing the leak. Also, you want to be sure that it IS in fact the belts squeaking. Try running the engine with belts removed. It it squeaks without the belts in place, something else is causing the squeak. Also, with the belts removed and the engine stopped, try spinning each pulley (that the belts normally spin) and note any that make noise, feel wobbly, or have a rough (not smooth) feel to the movement.
First, the neg. battery cable should be removed from the battery, the appropriate belts should be removed, the rad should be drained to at least as low as the bottom of the water pump's lowest point, and the top rad hose should be removed. Then the fan shroud bolts should be removed. The fan and clutch should be attached to the water pump hub by a large threaded nut. If the fan clutch itself needs to be dissassembled, or if the water pump pulley bolts can't be accessed with the fan present, then wedge a prybar or long screwdriver between the pulley bolts to prevent the fan turning and, using the appropriate size wrench, turn the large nut counterclockwise to loosen and remove it. If the water pump pulley bolts can be accessed then remove them and pull out the fan assembly and the fan shroud together. Installation is the reverse of removal. Don't forget to put the shroud and fan back in together.
First you have to remove the fan shroud, then unbolt the fan blade from the pulley. Then once that is done you loosen the alternator tensioner, remove the belts, loosen the two radiator hoses and remove the pulley wheel. Then unbolt the water pump. You also need to scrap any old gasket from the motor. Then reverse to install
It's an easy r&r. Just drain old rad using valve at bottom, Remove top/bottom hose, hose to overflow. Remove trans cooler lines if applicable. Remove fan & shroud. Pulley will come off water pump at this point. Remove top retainer plate/bolts to core support as applicable. lift up. Reverse to install. Any accessory belts that are loose, just loosen bolts on brackets (ones with slots) pry & then retighten to adjust belts. If serpentine, just pry on idlers to slip belt(s) on.
There should be a schematic on the fan shroud for the serpentine belt I don't know about a '98 Riviera but I have a 1996 Riviera & it's in my original owners manual. Athough I do not have a engine belt diagram on the fan shroud, I do have a decal for the enviormental control system. ANSWER: There is a schematic in the owner's manual of the '98 Riviera.
I believe that you have the VG30 engine, if this is true you have to remove all of the belts and to do that you must find all of the adjuster screws for the accessories that are attached to the appropiate belts and lossen the pivot bolts. once all other belts are removed you can begin replacing. my advice is to replace all the belts while you are there and save your self from the hassle of this again.
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