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Timing belt jump

Had to replace water pump and in doing so had to take out camshaft pulleys and timing belt etc. Putting timing belt back is a task in itself but when i put everything back and i mean tdc and giving it atleast 2 revolutions and it all lining up on tdc again taking it for a test drive was another story. timing belt jumped i dont know how but it did and of course loss of power and backfiring in airbox. The car is already missing scanner pulled up misfire cyl 6 but, thats something different or is it. could the misfire cause the timing belt to jump a tooth? the camshaft marks are lined up but the crank shaft pulley is the one that goes off by a tooth so I'm fustrated.

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Remove the t belt and reinstall it. Sounds like you were a half a tooth of on the cams wich would put you a tooth off on the crank. A lack of power makes sense with bad cam timing a s could,very well throw a miss. The misfire did not cause timing to jump

Posted on Oct 20, 2013

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Posted on Jan 02, 2017

SOURCE: putting belt back on pulleys

Your owners manual/label in engine compartment will have a diagram for how the belt runs. There will be one pulley that has a spring tensioner. This pulley keeps the belt tight and is used to install the new belt. Depending on the vehicle, these can be easy or very difficult to get at. The pulley or arm attached to the pulley will have a square hole of some means of inserting a tool to allow you to release the spring tension. I typically will install the tool and verify that I can get the tension off the belt before starting the process. Once I feel comfortable that I have the correct tool, I will release the tension and remove the belt. Then reinstall the new belt per the diagram. You will have to keep the tension off until the belt is in possition. I have found out that it is easiest if you put the belt on all the lower pulleys first and get down to one remaining pulley (top side of the engine so you have good access). Now use the tool inserted into the spring tensioner and move it until you have enough slack to get the belt over the last pulley, once in place release the tensioner. I typically have the belt over the tensioner pulley, and use the alternator or steering pulley as last pulley because it keeps your fingers out of the pinch points. There are some special tools you can purchase at Sears to assist, but I typically use a ratchet or wrench for this work. Sometimes a third hand helps out.

Posted on Nov 19, 2011

mastabeef
  • 1 Answer

SOURCE: Timing Issue - 1996 Toyota Camry 2.2 5SFE Engine

5sfe is non interference...

Posted on Sep 22, 2012

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2000 mazda 626 6 cyl replacing water pump, of


YES! Straighten out the T belt & look for any misfires. If u have any spring loaded pulleys or tensioners, REPLACE THEM. Did U have a misfire before u did the work?

Mar 14, 2017 | Cars & Trucks

3 Answers

Hi! Engine timing pulley question and general technical info. We are trying to get the timing correct on this 1993 Subaru Impreza LS. We noticed this one pulley jumps to three different locations,(loc


You have attempted a very difficult task without a service manual! First of all, there are precise timing marks on each cogged gear that have to STAY on those marks. There are tensioners that will keep the belt on those marks as you tense them up. Please do not start the engine unless the marks are perfectly aligned or you will surely damage the engine!!! Get the service manual, if you do not have it already!!!

Dec 31, 2012 | Cars & Trucks

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Water pump 2000 3.0 liter dodge caravan


For The 3.0 Motor. (3.3 Way down the line.)

Drain cooling system.
Remove timing belt. Refer to Engine for procedure.
Remove water pump mounting bolts.
Separate pump from water inlet pipe and remove water pump.

Timing Belt Removal
Raise vehicle and remove accessory drive belt splash shield (Fig. 66).
Remove accessory drive belts.
Remove crankshaft pulley and damper (Fig. 68).
Support engine and remove right side engine mount.
Remove engine support bracket (Fig. 67).
Remove timing belt covers (Fig. 67).
Mark belt running direction for installation (Fig. 69).
Loosen timing belt tensioner bolt (Fig. 71) and remove timing belt.
Remove crankshaft sprocket flange shield (Fig. 68). CAMSHAFT SPROCKETS To remove camshaft sprockets
Hold camshaft sprocket with Spanner Tool MB-990775. Loosen and remove bolt and washer (Fig. 70).
Remove camshaft sprocket from camshaft. To install camshaft sprockets:
Place camshaft sprocket on camshaft.
Install bolt and washer to camshaft. Using Spanner Tool MB-990775, hold camshaft sprocket and torque bolt to 95 Nm (70 ft. lbs.) (Fig. 70). TIMING BELT TENSIONER
Install timing belt tensioner and tensioner spring.
Hook spring upper end to water pump pin and lower end to tensioner bracket with hook out (Fig. 71).
Turn timing belt tensioner counterclockwise full travel in adjustment slot and tighten bolt to temporarily hold this position (Fig. 72).

INSTALLATION


Install timing belt on crankshaft sprocket and keep belt tight on tension side (Fig. 69). Install belt on the front (radiator side) camshaft sprocket. Install belt on the water pump pulley, rear camshaft sprocket and finally on the timing belt tensioner.
Rotate the front camshaft sprocket in opposite direction to take up belt slack. Check that all timing marks are aligned (Fig. 69).
Install crankshaft sprocket flange (Fig. 68).
Loosen tensioner bolt and allow spring to tension timing belt.
Turn crankshaft two full turns in clockwise direction. Turn smoothly and in clockwise direction ONLY.
Align the timing marks on the sprockets and tighten the timing belt tensioner locking bolt to 28 Nm (250 in. lbs.) torque.
Install timing belt covers.
Install engine support bracket.
Install right side engine mount.
Install crankshaft damper and pulleys (Fig. 68). Tighten damper center bolt to 135 Nm (100 ft. lbs.) .
Install accessory drive belts.
Install accessory drive belt splash shield (Fig. 66).

Be sure to also replace all the cam and crank seals why you are there. Might as well put a belt on too.

FOR THE 3.3 OR 3.8 MOTORS.

Drain Cooling System.
Remove accessory drive belt.
Remove right front lower fender shield.
Remove water pump pulley bolts and remove pulley.
Remove water pump mounting screws. Remove water pump.
Remove and discard O-ring seal.
Clean O-ring groove and O-ring surfaces on pump and chain case cover. Take care not to scratch or gouge sealing surface

Installation

Install new O-ring into groove.
Install water pump to chain case cover. Tighten screws to 12 Nm (105 inch lbs.) .
Rotate pump by hand to check for freedom of movement.
Position pulley on pump. Install screws and tighten to 30 Nm (250 inch lbs.) .
Install accessory drive belt.
Install right front lower fender shield.
Refill Cooling System.

FOR THE 2.4 MOTOR

Disconnect negative cable from battery.
Raise vehicle on a hoist. Remove right inner splash shield.
Remove accessory drive belts.
Drain cooling system.
Support engine from the bottom and remove right engine mount.
Remove right engine mount bracket.
Remove timing belt. Refer to Engine for procedure.
Remove timing belt idler pulley.
Hold camshaft sprocket with Special tool C-4687 and adaptor C-4687-1 while removing bolt. Remove both cam sprockets.
Remove rear timing belt cover.

Install new O-ring gasket in water pump body O-ring groove. CAUTION: Make sure O-ring is properly seated in water pump groove before tightening screws. An improperly located O-ring may cause damage to the O-ring and cause a coolant leak.
Assemble pump body to block and tighten screws to 12 Nm (105 inch lbs.) . Pressurize cooling system to 15 psi with pressure tester and check water pump shaft seal and O-ring for leaks.
Rotate pump by hand to check for freedom of movement.
Install rear timing belt cover.
Install camshaft sprockets and torque bolts to 101 Nm (75 ft. lbs.) .
Install timing belt idler pulley and torque mounting bolt to 61 Nm (45 ft. lbs.) .
Install timing belt. Refer to Engine for procedure.
Install right engine mount bracket and engine mount. Refer to Engine for procedure.
Fill cooling system.
Install accessory drive belts.
Lower vehicle and connect battery cable.

Mar 29, 2012 | Cars & Trucks

1 Answer

How do i set the timing belt on a 1997 cadillac catera?the betl did not break but how do i make sure the belt did not move a couple of teeth.


Hi, there should be marks on the belt itslf that align with hatch marks on the timing gears. Below are the instructions for installation. From these, you should be able to verify that the belt is in time. There are also some diagrams here: http://www.2carpros.com/diagrams/cadillac/catera/1997


To install:
  1. Install the timing belt.
    1. Start at the crankshaft pulley.
    2. Install the timing belt with a double dash (TDC) mark on the belt aligned with the marks on the oil pump and belt drive gear.
    3. Pinch the belt with special tool J 42069-30 to prevent the splines from jumping.

  2. Route the timing belt through the idler pulley for camshafts 3 & 4 then route the timing belt through the camshaft gears 3 & 4.
    1. Ensure the dash marks on the timing belt align with marks on the camshaft gears and the notches on the rear timing belt cover.
    2. If necessary, loosen timing belt idler pulley or move the cam gears slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    3. Tighten the idler pulley locking bolt until snug. The idler pulley bolt will be tightened to specifications after the final adjustments are made.




NOTE Timing belt deflection between the camshaft gears number 4 and the idler pulley for camshafts 3 & 4, must be no more than 0.4 inch (1 CM.).

  1. If necessary, adjust the timing belt deflection by turning the timing bolt idler pulley eccentric, for camshafts 3 & 4, counter-clockwise with the special tool J 42069-40, or equivalent.

  1. Route the timing belt through the timing belt idler pulley for camshafts 1 & 2 then route the timing belt through camshaft gears 1 & 2.
    1. Ensure the dash marks on the timing belt align with the marks on the camshaft gears and the notches on the rear timing belt cover.
    2. If necessary, loosen the timing belt idler pulley or move the cam gear slightly, with J 42069-1 and 2 still in place, until the timing belt can be installed.
    3. Apply sufficient tension to the timing belt to prevent it from slipping off the gears by turning the timing belt idler pulley eccentric for camshafts 1 & 2 counter-clockwise with special tool J 42069-40 or equivalent.
    4. Tighten the idler pulley locking bolt until snug. Idler pulley bolt will be tightened to specifications after final adjustments are made.

  2. Route the timing belt through the timing belt tensioner.
  3. Apply initial tension to the timing belt by turning tensioner eccentric counter-clockwise, with a 5 mm hex wrench, until marks are set.
    1. Tighten the belt tensioner-locking nut to 15 ft. lbs. (20 Nm).

  4. Adjust the timing belt.
    1. The timing belt must be properly adjusted or engine damage may occur. Do not continue with the engine assembly procedure until the timing belt is properly adjusted.

  5. Install the timing belt cover. Tighten the timing belt cover bolts to 71 inch lbs. (8 Nm).
  6. Install the power steering pump pulley and bolts. Install the water pump pulley and bolts.
    1. Tighten the power steering pump pulley bolts and the water pump pulley bolts after the serpentine drive belt is installed.

Mar 04, 2011 | 1997 Cadillac Catera

1 Answer

Need to know timing marks


REMOVAL
1. Disconnect negative battery cable.
2. Loosen power steering lock bolts and nuts accordingly and remove tension from power steering (P/S) and/or air conditioning (A/C) compressor drive belt.
3. Remove P/S and/or A/C drive belt.
4. Loosen generator mounting bolts and adjusting bolt.
5. Remove generator bolts.
6. Remove water pump pulley.
7. Remove crankshaft pulley.
8. Remove upper and lower timing belt covers.
9. Turn crankshaft so that timing mark on timing belt pulley is aligned with timing mark on engine.
10. Check that "I" mark on intake camshaft pulley is aligned with mark on seal plate and "E" mark on exhaust camshaft pulley is aligned with mark on seal plate.
Do not move camshaft or crankshaft once timing marks have been correctly positioned.
11. Loosen tensioner pulley lock bolt.
12. Protect timing belt with a rag.
13. Remove tensioner pulley.
14. Remove timing belt. Mark the direction of timing belt rotation (on the timing belt) for proper reinstallation.

INSTALLATION
1. Install tensioner pulley. Replace tensioner spring whenever timing belt is replaced.
2. Pull tensioner pulley to its furthest point and tighten lock bolt.
3. Check that timing mark on timing belt pulley is aligned with timing mark on engine.
4. Check that "I" mark on intake camshaft pulley is aligned with mark on seal plate and "E" mark on exhaust camshaft pulley is aligned with mark on seal plate.
If existing timing belt is being reused, install belt in proper rotation direction marked prior to removal.
5. Install timing belt onto timing belt pulley first, then idler pulley, exhaust camshaft pulley, intake camshaft pulley, and tensioner pulley in that order.
6. Check that there is no looseness in belt between idler pulley and exhaust camshaft pulley or between intake and exhaust camshaft pulleys.
7. Loosen tensioner pulley lock bolt and allow tensioner spring to apply tension to timing belt.
Do not add additional tension.
8. Tighten tensioner pulley lock bolt to specified torque.
Tightening torque:28~38 lb-ft (38~51 N·m, 3.9~5.2 kg-m)
9. Rotate crankshaft two full revolutions (clockwise only) and align timing mark on timing belt pulley with timing mark on engine block.
10. Check that "I" mark on intake camshaft pulley and "E" mark on exhaust camshaft pulley are aligned with marks on seal plate.
11. If they are not aligned, remove timing belt and start process from tensioner installation.
12. Measure timing belt deflection by applying moderate pressure midway between camshaft pulleys. If deflection is not correct, repeat from tensioner installation.
Deflection pressure:22 Ib. (98 N, 10 kg)Deflection:0.39~0.50 in. (11~13 mm)
13. Install lower and upper timing belt covers in that order.
Tightening torque:5.8~8.0 Ib-ft (7.9~10.7 N·m, 0.8~1.1 kg-m)
14. Install timing belt guide plate and crankshaft pulley.
Tightening torque:9.0~12.6 lb-ft (12.3~17.2 N·m, 1.3~1.8 kg-m)
15. Install water pump pulley.
Tightening torque:9.0~12.6 lb-ft (12.3~17.2 N·m, 1.3~1.8 kg-m)
16. Install generator belt and adjust the tension.
17. Install P/S and/or A/C drive belt and adjust the tension.
18. Connect negative battery cable.

INSPECTION
Never forcefully twist, turn inside out or bend timing belt. Do not allow oil or grease to come in contact with timing belt.
1. Replace timing belt if it is contaminated with oil or grease.
2. Check timing belt for uneven wear, fraying, peeling, cracking and hardening. Replace timing belt as necessary.
3. Bend timing belt into a "U" shape as shown in figure. Distance "A" must be at least 1.0 in (25 mm).
4. Inspect both idler pulley and tensioner pulley for uneven wear and smooth bearing operation.
5. Inspect camshaft pulleys and timing belt pulley for broken teeth or damage.
Replace any component that shows damage, excessive wear, or that appears prone to a possible failure.

Feb 26, 2011 | 2002 Kia Spectra

1 Answer

How do you set the timming on a 2.3 when your putting the new timming belt on


The IGNITION timing on your Ranger is computer-controlled and is not adjustable.


Should the camshaft drive belt/timing belt jump timing by a tooth or two, the engine could still run; but very poorly. To visually check for correct timing of the crankshaft, auxiliary shaft, and the camshaft follow this procedure:
There is an access plug provided in the cam drive belt cover so that the camshaft timing cam be checked without moving the drive belt cover.
  1. Remove the access plug.
  2. Turn the crankshaft until the timing marks on the crankshaft indicate TDC.
  3. Make sure that the timing mark on the camshaft drive sprocket is aligned with the pointer on the inner belt cover.

Never turn the crankshaft of any of the overhead cam engines in the opposite direction of normal rotation. Backward rotation of the crankshaft may cause the timing belt to slip and alter the timing.
REMOVAL & INSTALLATION

See Figures 1, 2 and 3


0996b43f80211842.jpg enlarge_icon.gifenlarge_tooltip.gif

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


0996b43f80211843.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Timing belt assembly on the 2.3L and 2.5L engine


0996b43f80211844.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. 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.


Dec 11, 2010 | 1995 Ford Ranger Supercab

1 Answer

How do you remove the timing belt cover on a 1995 VW Golf.


What is needed Tools: 6mm and 8mm allen wrench socket, 5mm allen wrench. 8mm, 13mm, 19mm socket and ratchet. 10mm combination wrench. Long ratchet extensions (at least one 6in, more are helpful). 5inch Wheel puller (for main shaft pulley). (Some models may need a special spanner tool to adjust the timing belt tensioner) Parts: 2 gal of anti-freeze mixed with distilled water. All three V-belts. (Alt, A/C, P/S) $32.95 New water pump top. $91.91 New gasket for WP. $9.13 New timing belt. $26.13.


Procedure:

Remove battery cable (either power (+) or ground (-)) remove alternator remove A/C remove power steering pump .Remove water pump pulleys remove main shaft pulleys remove timing belt covers remove A/C mounting hardware remove timing belt (don't turn any of the wheels its connected to) replace timing belt adjust belt tension remove water pump face put on new gasket and new part.

Leave pulleys off. replace bottom timing belt cover, replace crank shaft pulley, replace steering pump, replace A/C, put small belt on A/C (hang loose) put large belt around A/C, Main and water pump pulley. put middle size belt on Main water pump and power steering pump reattach bolts for the steering pump pulleys put alternator back on adjust all belts. connect battery

Problem areas:
Main pulley: There are 4 6mm hex head bolts. These must be removed. The main 19mm hex head can be used to turn the engine it the timing belt slips and you have to readjust the timing.

Putting on new belts: This can be a real pain if you get VW belts. The adjustments won't give enough to put the belts over the edge so the easy way is to remove the pulley on the water pump. Then its real easy.

Timing: If you turn the wheels that the timing belt goes on you will have to reset the timing. Mark the timing points with something like whiteout so its easy to see. The timing mark on the toothed gears are small dots. The timing mark for the crankshaft is a small cut on the outer pulley. When its aligned with the intermediate wheel timing mark (there is an arrow on the cover as a hint) should intersect as viewed from the right wheel well. The camshaft timing mark should line up with the top of the engine near the front.

Power steering pump: It is held on with lots of bolts. One is in a channel that is hard to see but can be found with a 6" extension. If you look at the pump you will see three bolts that go into the housing. This should give you an idea where the forth is.

May 01, 2010 | 1995 Volkswagen Golf

2 Answers

Timing belt jumped... why?


This can be caused by not tensioning the belt corectly.When fitting a new belt you should allways replace the tensioner,and make sure the water pump pulley is in good working order.Its always wise to get your timming belt from the dealer.as others are nown to be faulty.Fit new belt follow manuel when doing so.good luck

Aug 01, 2009 | 1998 Ford Escort

1 Answer

Instructions to replace water pump on 2000 Mazda Precidia


1. Depressurize and drain the cooling system. 2. Loosen the alterantor adjustment and remove the belt.
3. Remove the water pump pulley.
4. Remove all the timing belt covers.
5. Loosen the timing (camshaft) belt tensioner and slip the timing belt off the camshaft toothed pulley (ensure you do not move the positon of the camshaft)
6. Unbolt the lower radiator hose fitting and heater retrun pipe.
7. Unbolt the waterpump from the block (5 bolts).
8. Remove all traces of the old gasket before mounting the new pump (Permatex spray on gasket remover works well).
9. Install the new pump and reassemble in reverse order to above.

Jul 31, 2009 | Mazda MX-3 Cars & Trucks

1 Answer

Trying to set timing belt (new )


Be very careful with this timing belt change.
The key setting is to get the crankshaft and camshaft properly synchronized !
I believe this is an "interference" engine. If the crankshaft and camshaft are not set properly the valves will hit the pistons and be bent ! That would destroy the engine.
DO NOT TURN OVER THE ENGINE UNTIL THIS IS SET CORRECT

No you will not hear the valves hitting the pistons - you will hear the engine turning over faster than normal because you have lost compression.
The engine has marks on the gears and pulleys that will align with marks on the engine block at TDC which should be done before the timing belt is removed ! If you have did not do that and either the crankshaft or camshaft has moved, you have a problem. You can get a manual from the library, auto supply store, eBay or a manual seller.

Putting on the timing belt could use an extra set of hands- when you line up
the marks and the engine is at TDC, the injection pump has some spring tension
and will jump back one tooth. this means you have to hold the pump pulley in
place while putting on the belt. so an extra set of hands makes things much
easier.

Apr 26, 2009 | Toyota Highlander Cars & Trucks

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