Question about 1993 Buick Century

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What size is the bolt that holds the alternator on

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17 or 19mm headed bolt as a rule ,93 ?? could be AF 11/16 or 3/4

Posted on Dec 30, 2010


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How do i replace fanbelt

i don't know what car it is but this is what I know
  • The belt is held tightly in place by a number of pulleys. If you loosen just one, it will come off easily. (there are other variations with spring loaded tensioners but this advice concentrates on the basic system).
  • The alternator is usually rigged up so it can be swung sideways to loosen the belt.
  • All you have to do is find the right size spanner or socket wrench, loosen the mounting bolts on alternator then back off the single top bolt just enough to let the alternator move around.
  • Now you can slip the old belt off, check it for size against the new one and slip the new one on.
  • The new belt has to be reasonably tight. Not so tight that it will snap, of course, but tight enough to drive the alternator and water pump. You can just heave on the alternator but you'd probably have trouble holding it tight. Instead, slide a hammer handle or similar lever between the alternator and the mounting, taking care not to damage the alternator housing. Now all you need is a very light pressure to hold it tight while you do up the bolts. When the adjustment is complete, there should be approximately 10 mm to 13 mm of play in the belt, any more and the belt needs tightening.
The new belt will settle-in and stretch a little, so the tension should be checked again after 200 kilometres.

Apr 11, 2016 | Cars & Trucks

1 Answer

Alternator location on a 2010Toyota tundra

if you open the hood standing in the middle of truck, facing towards the windshield, split the motor in half, the alternator should be left of center of motor, it is round, it has a pulley it may have 1 or 2 belts or 1 serpentine belt, if it is a serpentine belt you are going to need a tool call serpentine belt tool kit, long bar with a socket on the bar, set of different sizes of sockets to fit the spring load device that hold the serpentine belt in place. on top of alternator is a wire connector with 2-3 wires that connect to the starter and battery, and bolt with connector for ground that is bolted on the back side of alternator, 2-3 bolts that hold the alternator in place, remove bolts, take it auto parts store have them test it before buying a new one.

Apr 19, 2015 | 2010 Toyota Tundra

1 Answer

Alternator bolt size

the head size for socket size or actual bolt spec.?
you lost the bolt (not stated) or just want to unscrew it?

I'll'' guess at lost.
its metric.
and is 6mm or 8mm ? in size. (i bet 8)
buy some 6 and 8s in the store and see if one fits.
if one fits , you now know the diameter in mm and the pitch.
now buy the correct length (use a ruler)

Jan 27, 2014 | Honda CR-V Cars & Trucks

1 Answer

My alternator bolt broke that hold it to the engine what do i do

remove the alternator and if there is enough of the bolt take a pair of vise grips lock them down tight and remove bolt, if it is a clean break you have a few options:

1) get a set of easy outs, drill a hole and use an easy out to exact broken bolt

2) get an oversize self tapping bolt (a size bigger then the bolt that broke off, drill the bolt out completely and then tap the new bolt

Good Luck Tim

May 22, 2011 | 2001 Oldsmobile Aurora

1 Answer

Remove and replace alternator

you didn't mentioned what type of vehichle or year, but most of these you will have to remove the tension from the belt tensioner, to do so, you will need a 13 - 15" size metric wrench, or 3/8 size ratchet, and a 13- 15" size metric socket , and hold back on to the tensioner towards the drivers side of the engine, this releases the tension from the belt, and then let the serpentine belt lay aside, then disconnect the negative battery cable from your battery, and then disconnect the wiring from the back of the alternator, and remove the hold down bolts that hold the alternator in place, then lift alternator from bolted on area, then install new alternator, plug up wiring at back of it , bolt the alternator back on, and then with a 13 -15 " metric wrench or socket, hold back on to the belt tensioner, and then slip the belt back into position, and release the tensioner slowly against the belt, make sure that the belt is lined up correctly on all of the pulleys, then reconnect the negative battery cable, then start the vehicle up., and check that the belt is operating ok. afterwards, you will most likely have to reset your radio functions , due to the battery cable being disconnected.

Mar 08, 2011 | Jeep Cherokee Cars & Trucks

2 Answers

I would like instructions to remove and replace the alternator in a 2004 FORD EXPLORER XLS with a 4.0L V6

Disconnect the battery

Remove the air snorkel and upper half of the air box. You may have to remove the engine cover to get at the clamp for the air snorkel at the throttle body.

You will see the serp belt tensioner on the drivers side of the engine. In the center of the pulley will be a bolt head. use the appropriate sized socket and ratchet to rotate the tensioner using the bolt head. Once the tension is off the belt it can be removed from the alternator pulley. You do not need to remove the entire belt.

Remove the three bolts holding the alternator to the bracket. A 15mm socket and possible a swivel should to the trick.

Remove the plug in connector from the alternator and remove the nut holding the battery cable to the backside of the alternator.

Make sure the new alternator is the same amperage, has the same mounting brackets and the same pulley size and the same number of groove. Essentially make sure it looks identical to the old one.

Then reinstall. It should take you about an hour tops. Good luck!

Oct 14, 2010 | 2004 Ford Explorer

1 Answer

How do i replace the altenator

1. Remove the plastic air intake system which includes the air filter, 1 vacuum hose, the tube that runs to the carb, the tube that runs off to the left. There are three bolts that hold the bottom of the air filter housing on. Most of this system is a snap together assembly. Just pull it apart.

2. The alternator will have two bolts on the front bottom. The left one is a double sided bolt and the right one is a pass through bolt with a nut on the back. Stick a wrench or a short socket wrench on the nut behind the alternator and remove the pass through bolt from the front. Then remove the double sided bolt from the left side.

3. This leaves the alternator loose and being held by the belt. remove the belt from the alternator and wiggle and jiggle the alternator out of the mounting area (very tight squeeze to get it out). You can put a larger size can of fruit or something in the place of the alternator to hold the belt in place so you can remember how it looks.

4. You will need to loosen the belt tensioner to put the belt on the new alternator. Remove the can of fruit if you chose to do that but be careful to not accidentally remove the belt from the 5 or 6 different places it passes through. Place the new alternator, put in the bolts and tighten. Loosen the tensioner and put the belt on. Tighten the tensioner and adjust as needed. Replace the entire air intake system by snapping it all back together and bolting it in one piece at a time.

Aug 26, 2010 | 1994 GMC Safari

1 Answer

Bolts for the alternator

Go the auto parts store and they can either pull it up or they can let you use a thread gauge to tell you the threads and size.

Apr 10, 2010 | 1994 Mazda 323

1 Answer

My 2003 Hyundai Tiburon is missing a bolt in the alternator adjustment bracket. What size bolt do I need?

alternator bolts can be 13 mm 14 mm 15mm.your best bet is to go to dealership.they can look up the bolt and size you need.

Dec 10, 2009 | 2003 Hyundai Tiburon

2 Answers


it is an easier way to remove an alternator.
1.-disconnect the battery
2.- take the right side tire off(make sure it is a tower under the car for safety)
3.- diconnect the harnest from the alternator from under the vehicle, and the nut the holds the holds the positive cable too.
4.- use a long extention with a flex socket size 15mm and a ratchet to remove the two bolts from the alternator. This two bolt will have to be remove from under the car.
5.- the last bolt have to be remove from an top of the car. Usiing a mid size flex ratchet and a regular 15mm socket.
6. After the last bolt is removed the alternator will have to be remove from top of the egine.

hope this instructions can help anybody.

Jun 17, 2008 | 2003 Ford Escape

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