Question about Subaru Legacy

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Changed the water pump and timing belt, when i was removing the crank bolt the old belt jumped now I've changed the cams and crank positions, now I need a starting point as after about 10 differnt changes it still will not start, there has been NO valve/ piston hitting but still it will not start, Eric

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  • ericpeterson Mar 14, 2011

    it is a 2000 legacy L we are sure there has been no damage we started with the turning it by hand so no damage. I strated with the TDC on the crank and cams when from the left cam to the crank to the right cam then with the bottom pulleys got it to miss fire but not to start. how can we know the the cams and or the crank is not out by 180. can you tell me how to start from there, Eric

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1. It's not enough for saying "no damage" if only turning the crankshaft by hand. You need to carry out a compression test of the engine for being 100% sure that really "no damage" inside engine. Usually some valves are bent in these situations! Please check it!
2. Please send me back the engine type and made year, and I will send you the timing belt diagram for your engine. Then you will know exactly the correct timing set-up for your engine, without any doubt of the cams and crankshaft positions.

I'm looking forward to hearing you.

Posted on Mar 14, 2011

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The Subaru does have interference type engines or those where valves can hit the pistons and damage occurs. You do not give a year, model number so I'll try. The interference engines are, EJ255, EJ257 Vin code 6 = 6 or 7 - 2004 - 09, Baja 2.5, Forester XT 2.5L, Impreza STI 2.5L, Legacy GT 2.5L, Outback XT 2.5L. The 1998-99 Forester, Impreza, legacy, Outback 2.5L. The Impreza WRX 2.0L turbo. 2002-05. The 1996-97 Legacy & Outback 2.5L. If yours is one of theses models and year. You may have some damage. The only way to know for sure if you have damage is with a compression check of all the cylinders. If you think you still may be ok with no damage, Repost with model year and engine type I will try to set you up with a description of how to time the cams.

Posted on Mar 13, 2011

  • John Fourteen Six Mar 14, 2011

    The 2000 Legacy came with 2 different engines. One has 2 cams the other 4. To set up the 2 came engine. Set the crankshaft with its marks straight up at the 12:00 o'clock position, the cams will have marks on them and they also will set in the 12:00 o'clock position They all match marks on the casing. The 4 cam engine will set the crankshaft again straight up at the 12:00 o'clock position. The top cams will have 2 sets of marks, a single mark which will set at the 12:00 o'clock position, and a double mark which the bottom cams align to. The bottom cams will have a double mark that aligns to the top cams double mark. Install the timing belt in a counterclockwise direction starting with the crankshaft, be sure the belt is taut between the sprockets on the non tensioner side.

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I'm attempting to do a timing belt change on my 2004 Chevy Aveo. The problem is when I took off the old timing belt I forgot to loosen the tension using the water pump. When I tried to install the new...


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You can rotate the cam/crank into a positon that will not move as you remove the old belt, as long as the new belt places the cam/crank in same position as the old belt had them, it don't matter where the timing marks are. Leave your old belt on, rotate to a position that will not move or have tension on belt, (no matter the marks) and replace the belt. Make sure to recheck timing marks after new belt is installed by rotating the crank/cam back to timing marks, or just trust that the belt was replaced without the cam or crank rotated. Easy off, easy on, just make sure the cam/crank are still in time as the old belt had them located. NOTE: timing marks are there in case of a broke belt, or for a car that has jumped time. As long as cam and crank are held in same positon, and car was in time before the procedure, it don't matter where the timing marks are at during belt replacement.

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1 Answer

How does the timing belt cover come off the 1998 Mazda B2500 "


REMOVAL & INSTALLATION

2.3L/2.5L Engines
(see Figure 1 - click over pic for zoom)

zjlimited_982.jpg

Fig. 1: Timing belt cover on the 2.3L/2.5L engine

  1. Disconnect the negative battery cable.
  2. Rotate the engine so that No. 1 cylinder is at TDC on the compression stroke. Check that the timing marks are aligned on the camshaft and crankshaft pulleys. An access plug is provided in the cam belt cover so that the camshaft timing can be checked without removal of the cover or any other parts. Set the crankshaft to TDC by aligning the timing mark on the crank pulley with the TDC mark on the belt cover. Look through the access hole in the belt cover to make sure that the timing mark on the cam drive sprocket is lined up with the pointer on the inner belt cover.
Always turn the engine in the normal direction of rotation. Backward rotation may cause the timing belt to jump time, due to the arrangement of the belt tensioner.
  1. Drain cooling system. Remove the upper radiator hose as necessary. Remove the fan blade and water pump pulley bolts.
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  1. Loosen the alternator retaining bolts and remove the drive belt from the pulleys. Remove the water pump pulley.
  2. Loosen and position the power steering pump mounting bracket and position it aside.
  3. Remove the timing belt outer cover retaining bolts and any interlocking tabs and remove the cover.
To install:
  1. Install the timing belt cover.
  2. Install the water pump pulley and fan blades. Install upper radiator hose if necessary. Refill the cooling system.
  3. Position the alternator and drive belts, then adjust and tighten it to specifications.
  4. Connect the negative battery cable.

Hope helps (remember to rated this answer).

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1 Answer

Im ford ranger 2.0 want to chenh the timing belt 1984


REMOVAL & INSTALLATION

2.0L and 2.3L Gasoline Engines
See Figures 1, 2 and 3

zjlimited_754.jpg

Fig. 1: Exploded view of the timing belt cover on the 2.0L and 2.3L engine

zjlimited_755.jpg

Fig. 2: Exploded view of the timing belt assembly on the 2.0L and 2.3L engine

zjlimited_756.jpg

Fig. 3: Releasing the timing belt tensioner using a special tool

  1. Rotate the engine so that No. 1 cylinder is at TDC on the compression stroke. Check that the timing marks are aligned on the camshaft and crankshaft pulleys. An access plug is provided in the cam belt cover so that the camshaft timing can be checked without removal of the cover or any other parts. Set the crankshaft to TDC by aligning the timing mark on the crank pulley with the TDC mark on the belt cover. Look through the access hole in the belt cover to make sure that the timing mark on the cam drive sprocket is lined up with the pointer on the inner belt cover.
Always turn the engine in the normal direction of rotation. Backward rotation may cause the timing belt to jump time, due to the arrangement of the belt tensioner.
  1. Drain cooling system. Remove the upper radiator hose as necessary. Remove the fan blade and water pump pulley bolts.
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
  1. Loosen the alternator retaining bolts and remove the drive belt from the pulleys. Remove the water pump pulley.
  2. Loosen and position the power steering pump mounting bracket and position it aside.
  3. Remove the four timing belt outer cover retaining bolts and remove the cover. Remove the crankshaft pulley and belt guide.
  4. Loosen the belt tensioner pulley assembly, then position a camshaft belt adjuster tool (T74P-6254-A or equivalent) on the tension spring rollpin and retract the belt tensioner away from the timing belt. Tighten the adjustment bolt to lock the tensioner in the retracted position.
  5. Remove the timing belt.
To install:
  1. Install the new belt over the crankshaft sprocket and then counterclockwise over the auxiliary and camshaft sprockets, making sure the lugs on the belt properly engage the sprocket teeth on the pulleys. Be careful not to rotate the pulleys when installing the belt.
  2. Release the timing belt tensioner pulley, allowing the tensioner to take up the belt slack. If the spring does not have enough tension to move the roller against the belt (belt hangs loose), it might be necessary to manually push the roller against the belt and tighten the bolt.
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1 Answer

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1. Jack up front of vehicle and support on safety stands. Remove left front wheel.
2. Remove alternator/water pump drive belt. Remove water pump pulley.
3. Remove A/C belt if equipped.
4. Remove valve cover.
5. Remove upper timing belt cover.
6. Rotate crankshaft until No. 1 cylinder is at TDC compression stroke and camshaft sprocket timing marks align with edge of cylinder head. "UP" cast on sprocket will be at top when sprocket is in correct position. Crankshaft may be rotated using a socket wrench inserted through access hole in left fender well (engine rotates counterclockwise).
7. Unbolt and remove crank pulley. Remove rubber seal washers from belt tensioner pivot and adjustment bolts protruding through lower belt cover. Remove belt cover retaining bolts and remove cover from below.
8. Remove concave belt retainer from end of crankshaft. If timing belt is to be reused, mark direction of rotation before removing.
9. Loosen belt tensioner pivot and adjustment bolts. Push tensioner away from belt and retighten adjustment bolt to hold tensioner in this position. Remove belt.
10. Insert a suitable tool through cam sprocket and brace against cylinder head. Remove bolt and pull sprocket from camshaft.
11. Without dislodging key, install new sprocket on camshaft. Torque bolt to 22 ftlb (30 Nm).
12. Install new timing belt by starting at crank gear and working it over cam sprocket in clockwise direction. Ensure that timing marks are properly aligned.
13. Release tensioner by loosening adjustment bolt. After tensioner contacts belt, retighten bolt.
14. Rotate engine at least one full turn (counterclockwise) and check that timing marks are aligned. Loosen adjustment bolt and allow tensioner to take out any remaining belt slack. Torque adjustment and pivot bolts to 22 ftlb (30 Nm).
15. Install remaining components in reverse order of removal. Torque fasteners to following values:

TORQUE VALUES

Valve Cover Nuts - 7 ftlb (10 Nm)
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Tensioner Pivot Bolt - 22 ftlb (30 Nm)
Tensioner Adjust Bolt - 22 ftlb (30 Nm)
Belt Cover Bolts - 7 ftlb (10 Nm)
Crank Pulley Bolt - 83 ftlb (115 Nm)
Water Pump Pulley Bolts - 9 ftlb (12 Nm)

daves944_3.jpg

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Oil change and cam belt/timing chain change for volkswagen golf 1.9cc tdi 130 bhp, 1992 model


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2 Answers

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2 Answers

Changed the water pump on my 1997 passport & now the timing is off.


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2 Answers

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The Isuzu is a strange animal-when you do the timing belt you set it with #1 TDC "BUT" the distributor is timed with TDC #4 I found this the hard way and finally had to buy a cd with the procedures on it. Send me an e-mail address and I will forward the associated pictures &
info to you.
Jim Young
jmysr@hotmail.com

TIMING BELT & SPROCKETS R & I
NOTE: Some procedures may differ slightly due to engine
construction.
Removal
1) Remove all necessary air ducts. Position No. 4 piston at
TDC of compression stroke. Align timing marks. See Fig. 2. Remove fan
and fan shroud. Remove belts. If necessary, remove radiator and
splashguard.
2) Prevent engine from rotating and remove crankshaft timing
pulley retaining bolt. Remove upper and lower timing belt covers.
Remove spring from tension pulley. Loosen adjusting bolt and move
pulley toward water pump. Remove timing belt.
CAUTION: Ensure pistons are at TDC when rotating camshaft or damage
may result.
Inspection
1) Handle timing belt carefully. Avoid twisting or kinking
belt. Do not allow belt to become contaminated by water, oil, dirt or
other contaminates. Inspect belt for cracks or damage. If necessary,
replace.
2) Measure tension pulley spring length and force. Spring
length should not exceed 2.76" (70.2 mm) and spring force should not
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3) Replace tension pulley spring if not within specification.
Installation
1) Pull tensioner fully toward water pump side and
temporarily tighten retaining bolt. Ensure No. 4 cylinder is at TDC on
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mark on front crankshaft seal housing (12 o’clock). Rotate camshaft
until timing mark on cam gear (arrow) aligns with mark on upper
camshaft cover (notch). See Fig. 2.
NOTE: When timing marks are aligned as stated above, No. 4 piston
is at TDC on compression stroke.
2) Position timing belt over crankshaft sprocket, oil pump
sprocket, camshaft sprocket and tensioner in that order. Ensure belt
is positioned in sequence given and without slack between sprockets.
Loosen tension sprocket adjusting bolt allowing spring tension to
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3) Temporarily install crankshaft pulley bolt and rotate
crankshaft 2 complete revolutions in opposite direction of engine
rotation, until marks on crankshaft and front oil seal retainer are
aligned again. See Fig. 2. Loosen tensioner lock bolt, allowing
tesioner spring to fully adjust tension. Tighten tensioner lock bolt.
4) Install timing belt covers. To complete installation,
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Fig. 2: 2.3L & 2.6L Timing Alignment Marks
Courtesy of Isuzu Motor Co.

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2 Answers

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