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Timing Belt Replacement

Tiny
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  • 1999 MITSUBISHI GALANT
  • 151,500 MILES
Im currently in the middle of changing the timing belt and after taking off the cover I see there are two belts behind the cover. Is the other belt the balance shaft timing belt? Also to remove these belts all is needed is to loosen tension pulley fixing bolt and the retaining bolt centered on the other tensioner pulley to get the off, or does more need to be removed first? Any help is greatly appreciated.
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Tuesday, July 31st, 2012 AT 7:55 AM

13 Replies

Tiny
ASEMASTER6371
  • MECHANIC
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Can you send us a picture to see where you are with this job?

Roy
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Tuesday, July 31st, 2012 AT 10:09 AM
Tiny
KHLOW2008
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Which engine do you have?

That is the balancer belt and you must ensure you get the markings correct failing which there would be vibrations when engine is running at high rpms.

Timing belt has auto-tensioner which needs to be compressed for installation. It would be good to insert a pin to lock it before loosening of timing belt and removal. ( You would need to push at the belt to compress the tensioner pin to be able to insert the locking pin.) This would eliminate the necessity of compressing it. If you are replacing the tensioner, you would not need to do this as the new tensioner would come with a lock pin. DO NOT remove pin till everything is in order and belt adjusted correctly.
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Tuesday, July 31st, 2012 AT 2:00 PM
Tiny
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Hope this pic. Will help. It's a 2.4L engine. So the auto tensioner has to be removed also? I'm not replacing the tensioner. Thx
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Tuesday, July 31st, 2012 AT 4:46 PM
Tiny
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Here's a couple more pics. Thx
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Tuesday, July 31st, 2012 AT 4:52 PM
Tiny
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Thx
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Tuesday, July 31st, 2012 AT 4:53 PM
Tiny
KHLOW2008
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If you don't remove the auto-tensioner, you would not be able to replace the balancer belt. Wwhen timing belt is due for replacement, so is the balancer belt.

Ensure you have all the markings lined up before removal and after installation, recheck.

For the balancer belt there is a locking hole at side of engine.
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Tuesday, July 31st, 2012 AT 5:07 PM
Tiny
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Ok. So rotate crankshaft until #1 cylinder is at TDC with the camshaft sprocket timing mark aligning with timing mark on cylinder head. Loosen timing belt tensioner center bolt, ( White#1 in pic.) And move tensioner pulley toward water pump. Tighten center
bolt to secure tensioner. Remove front timing belt. Remove tensioner pulley and timing belt auto
tensioner( Red #1 & #2). Then to remove balance shaft belt, remove left balance shaft access plug from cylinder block.( Red arrow) Insert.31" (8.0
mm) diameter Phillips screwdriver to block left silent shaft. Ensure screwdriver can be
inserted at least 2.36" (59.9 mm). Remove screwdriver if it cannot be inserted at least 2.36" (59.9 mm).
Rotate balance shaft one revolution and realign timing mark. If reusing old balance shaft timing belt, mark belt with arrow to indicate rotation direction. Holding
crankshaft stationary, remove front crankshaft sprocket bolt. Use gear puller to remove crankshaft
sprocket from crankshaft.
Noting direction of installation, remove crankshaft sensing blade. Loosen balance shaft tensioner pulley
center bolt( Red #3 ). Remove balance shaft timing belt. So does this sound correct? Thx
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Wednesday, August 1st, 2012 AT 4:57 AM
Tiny
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The procedure is correct but no mention was made on the auto tensioner. This is an inteference engine and any mistake can be costly. I would never recommend such jobs for a normal DIY person.
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Wednesday, August 1st, 2012 AT 12:24 PM
Tiny
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Yes there was. It was mentioned in the 4th sentence of the last post. Does that change if its an interference engine? Thx
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Wednesday, August 1st, 2012 AT 3:24 PM
Tiny
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Inteference means you have to be careful when installing and do not turn the cam and crankshaft when the timing belt is out.
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Wednesday, August 1st, 2012 AT 4:13 PM
Tiny
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Ah. Ok I'll definitely make sure they dont turn, and thx a bunch for your insight. Well. Wish me luck and I'll let you know how things turn out. Im an optimist and think I'll do fine. :) Once again Thx.
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Wednesday, August 1st, 2012 AT 11:29 PM
Tiny
ASEMASTER6371
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From the picture, there are missing teeth on the belt which means your timing is already gone wrong. You may already have valve damage

Roy
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Thursday, August 2nd, 2012 AT 2:35 AM
Tiny
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Well, I just finished replacing the timing belt. And the bad boy started right up without any problems! Runs Great! Thx for all the advice. Peace
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Tuesday, August 14th, 2012 AT 7:05 AM

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