I broke off the bolt that tightens the serpentine belt on my 96 avalon! i need a replacement what size is it??

The snapped belt has a number mark.

How To Install Replace Engine Serpentine Belt Volkswagen ...

? 6:09
https://www.youtube.com/watch?v=urBVruIk348
Dec 31, 2011 - Uploaded by 1A Auto Parts
How To Install Replace Engine Serpentine Belt Volkswagen Beetle 1AAuto.com ... Well, the serpentine belt on my Bugbroke. And, didnt know ...

Help! Serpentine belt broke, need advice. - TDIClub Forums

https://forums.tdiclub.com/showthread.php?t=323672

Jul 11, 2011 - Basically, I think the serpentine belt blew on her, she drove about 1/8 ...TDI(s): 2005 Passat Wagon, 2004 Jetta,99.5 Golf ... BTW, last year I lost my AC belt rather abruptly. .... 2005 VW Passat GLS TDI (Chipped, BSM delete, and Manual ), 2007 VW Eos 2.0T, 2002 Mazda MPV ES, 2015 Toyota Sienna XLE. 1.6 tdi alternator belt tensioner bolt snapped
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VWVortex.com - Broken timing belt, valves likely bent

forums.vwvortex.com > ... > Golf IV & Jetta IV

The timing belt diagrams are listed in detail with figures and procedure to remove them.

REPLACING TIMING BELT ON A 2003 HYUNDAI TIBURON 2.7L V6

1. Remove passenger side headlight via the 3 10mm screws holding it in place and disconnect the turn signal and main harness

2. Remove passenger side tire

3. Remove the splash guard via 2 10mm screws at the top of the guard

4. Remove the 2 17mm bolts and 2 17mm nuts from motor mount bar

5. You may have to separate the mount bar from the motor via either a chisel or flathead screwdriver and a hammer ( support engine via a jack and a piece of plywood under oil pan )

6. Use a 3/8 ratchet ( or a long breaker bar would work better ) to remove the serpentine belt ( remember the route ). Disconnect the power steering hose from the pump and secure back with a zip tie. Remove the power steering pulley with a pry bar and 19mm socket.


7. Hand turn the crankshaft via a 22mm socket to TDC ( top dead center, marked on lower timing belt cover )

8. Remove the serpentine belt tensioner via 2 12mm bolts on each side

9. Remove the upper timing belt cover via 7 10mm screws

10. Remove crankshaft pulley ( 22mm ) with an air impact gun ( an electric one will work too )

11. Remove lower timing belt cover via 4 more 10mm screws





12. Remove the motor mount from the block via 3 14mm bolts and 2 12mm bolts ( there is a 12mm holding the oil dipstick bracket towards the front of the car )

13. Remove the auto tensioner via 2 12mm bolts



14. Remove the timing belt


15. Make sure your timing markings are correct...

There is one marking on each cam gear and on the heads ( head markings are small, look closely...try wiping the edge of the head down with a rag and some brake cleaner to bring it out more ) They are also pictured in last pic.

When the crankshaft is in the TDC position, the cam gear markings should both line up at the same time with the head markings

Adjust if necessary, use a 17mm socket to turn cam gears to correct position

16. Install new timing belt ( as you install it, make sure to keep a little tension on the belt as you route it )

17. Install new auto tensioner and pull pin

18. Install just the lower timing belt cover

19. Install the crankshaft pulley

20. Hand turn the crankshaft atleast 5 times to verify the timing markings are lining up properly ( all should line up at the same time when the crankshaft pulley mark is in the TDC position )

21. Remove crankshaft pulley

22. Remove lower timing belt cover

23. Reverse steps 12 - 1

You can refer the videos below for further assistance.Your valuable feedback would be appreciated.Thanks for choosing Fixya.

You need to loosen the bolts that attach the alternator to the engine. Just loosen then a turn or so, don't remove them. Then there should be a long 10 or 12mm bolt attached to a bracket being held by one of those bolts attaching the alternator. One direction loosens while the other tightens the belt. When it is where you want it, retighten the alternator bolts and test.

These should have a belt tensioner pulley........It is designed to be pushed up or down to slide the belt over the pulley that is mounted to the tensioner.....Normally the tensioner will have a square slot in it to put a 3/8 or a 1/2 in ratchet head into it and move it up or down.....Some tensioners are designed to put a socket or wrench on the pully bolt head..then push tensioner in tightening position to flex tensioner and slide belt over pulley.....It has to be one or the other......Just look very closely at the pulleys...Some tensioners have an arrow on the side of it showing which direction to push it to re-install the belt....It is mounted sperately by itself....It is called Serpentine Belt Tensioner .......................................It is self adjusted...It is flexed up and down very fast while it is running and if it ever gets loose from age you just replace it.......There is no nut and bolt adjustment for a serpentine belt..................Hope this helps.....................................Metalpoet

Hi,

The tools required are:
1/2-inch drive ratchet
2 - 1/2-inch drive 8-inch extensions
1/2-inch drive socket set

Please follow these steps to replace the serpentine belt on your 1999 Chrysler 300M:

1. Open the hood and prop it in place.

2. Locate the serpentine belt adjustable idler pulley on the front of the engine. This adjustable idler pulley will be closest to the top of the engine. Position a metric socket onto the ratchet and loosen the bolt in the center of the serpentine belt idler pulley.

3. Now please loosen the push bolt on the side of the idler pulley. It is a 15mm size and the push bolt on the side of the tensioner is 13mm. Pull off the old belt.

4. Loosen the tensioner pulley for the AC belt. The same steps need to be followed for this as well.

5. Next slip the AC belt on the back of the crank pulley and route it as per the diagram under the hood.

6. Now you need to tighten up the idler pully and the push bolt until the belt play is within factory specifications, then tighten the hub bolt in the center of the pulley as well.

7. The same thing needs to be done for the serpentine belt as well. Just ensure that you tighten up the bolts and have the specified play in the belt. Check the belt tension by pushing inward on the belt.

8. Crank the vehicle for about 15-20 seconds. Then turn it off and again check the tension in the belt. Adjust as necessary. You need to have about half an inch of play in the belt.

If this doesn't work for you or in case you need any further assistance, please comment and let me know, and I will be happy to assist you to further resolve your issue.

I will appreciate your feedback and positive rating for this solution.
Thank you.

You don't. If the belt looks frayed or otherwise damaged you replace it. There is however a belt tensioner which kind of automatically applies tension to the belt which removes the need to adjust belts like the old v belts with the adjustor brackets. You shouldn't have more than 1/2 to 1" or belt play otherwise if so your tensioner may be going out and need to be replaced.

You can get large pliers, or a pry bar between the bolt heads of the fan.

serpentine belt or standard belt system?if standard lossen 12mm bolt and tensioner on alt.slide left.drop 14 mm bracket bolt then drop slide bolt. dissconect 10mm or 12mm bolt om starter then clip inn alt drop alternater reverse in. diff on serp drop serp by tensioner pulley rest the same

simple really 12mm wrench an socket and 14 mm wrench an socket. lossen alt bracket 14mm then tesioner 12mm slide back drop belt and reverse. unless condensioner belt in way then dro 12 mm bolts on shiled then back off 12mm bolts on condensioner pulley remove belt follow previous instructions

there is a tensioner on that. it will take i think a 14mm or a 15 mm and the 12mm for the bolt that tightens the belt after its kinda tight not real tight then use the 14 or 15 mm to snug down the tensioner nut .