Question about Oldsmobile Delta 88

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When changing the alternator belt in a 1975 Delta 88, where does the alternator belt attach?

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SOURCE: Changing alternator belt in 1977 Delta 88

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

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SOURCE: I need to change my

YOU WILL SEE A PULLY THAT LOOKS LIKE IT ON AN ARM PUT A SOCKET IN THE NUT AND EATHER PULL FOR WARD OR PULL BACK AND IT WILL ROTATE TO ALLOW THE BELT TO COME OFF. THEN REMOVE ALTERNATOR
MAKESURE TO TAKE POSITIVE CABLE OFF BATTERY SO YOU DONT SHORT CERCATE THE SYSTEM.

Posted on Aug 08, 2011

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Rattle at stop lights


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You can sometimes tell by using a mechanic's stethoscope, which is a long screwdriver or an long thin stick.
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Changing alternator belt in 1977 Delta 88


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.

Jan 19, 2009 | 1983 Oldsmobile Delta 88

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