Question about 1985 Oldsmobile Delta 88
Posted by Anonymous on
Best to go to the GM site, and find the schematics. Armed with that knowledge, you can figure out which belts are needed for your 1985 Olds Detla 88.
Posted on Jul 13, 2010
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Posted on Jan 02, 2017
On the older cars, the alternator was attached by two mounting bolts.
The long bolt goes through the alternator and is held on by a hex nut.
The short bolt goes through a slotted curved piece into the alternator
and is used for adjusting tension on the belt.
Depending on the location of the alternator, it may require you to work from the top of the engine or in some cases from under the car. Determine if any other belt is blocking the alternator belt. If so, this belt will have to be removed first to access the alternator belt.
Use a little penetrating fluid (e.g. PB Blaster) on the threads of both bolts and let it soak in to loosen up any corrosion. Using two wrenches/sockets(one to hold and one to loosen), loosen the long pivot mounting bolt; but do not remove. Then use a wrench or socket to loosen the short bolt and push the alternator towards the engine to allow the belt to be removed.
Installation is the reverse. You will have to lift the alternator up and outward to tighten the belt prior to tightening the short bolt. Then tighten the long bolt. Check tension by pressing down on the midpoint along the longest span between pulleys. Belt should not deflect more than 1/2 to 3/4 inch. If it does, loosen the two bolts and re-tension (you may need a pry bar for adjustment). Some setups use an idler pulley for adjusting tension.
Posted on Jan 24, 2009
Check the spark on each plug wire with a calibrated spark tester.One can be bought at most parts stores.If two plug wires that are next to each other are bad then replace coil pack.There may also be a bad ignition module.Also check the crankshaft position sensor.
Posted on Aug 08, 2009
if the old belt is still on, its quicker if you just trace how the belt goes around the different pullies on a piece of paper, or take a digital photo of the belt. that way you how to install the new one.
Posted on Dec 18, 2009
remove the mount from it. The lower mounts will keep the engine in place. The upper mount is a stablelizer to keep the engine in check when high torque to the engine is created while driving
Posted on Mar 28, 2010
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