Mechanics

TIMING BELT REPLACEMENT

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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MoneyCount
July 31, 2012.



Can you send us a picture to see where you are with this job?

Roy


ASEMaster6371
Jul 31, 2012.
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.


KHLow2008
Jul 31, 2012.
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


Tiny
MoneyCount
Jul 31, 2012.
Here's a couple more pics. Thx


Tiny
MoneyCount
Jul 31, 2012.
Thx


Tiny
MoneyCount
Jul 31, 2012.
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.


KHLow2008
Jul 31, 2012.
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


Tiny
MoneyCount
Aug 1, 2012.
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.


KHLow2008
Aug 1, 2012.
Yes there was. It was mentioned in the 4th sentence of the last post. Does that change if its an interference engine? Thx


Tiny
MoneyCount
Aug 1, 2012.
Inteference means you have to be careful when installing and do not turn the cam and crankshaft when the timing belt is out.


KHLow2008
Aug 1, 2012.
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