Question about 1998 Chevrolet Cavalier

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Have problem with the camshaft, lose 4 exhaust valve

I set the timing of my cavalier 1998,2.2.l. I crank the engine for a good while. No result.When I took out the sparkplugs they all were wet with gasoline. I check the spark of the sparkplugs and they are oke. When I took down the cilinderhead 4 exhaust valve hit the pistons.

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Posted on Jan 02, 2017

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SOURCE: 95 GMC Jimmy 4.3l W vin rough idle

My problem was solved when I repaired my 4 wd activation dash switch. The switch was contacting on 2WD & 4HI at the same time. The front differential activation is vacuum activated possibly creating a tug of war that didn't actually engage it but drained off vacuum from the engine? A theory at best but stumbbled across it because I knew the switch wasn't working properly I repaired it and low and behold rough idle disappeared and all is good for 3 weeks running.

Posted on Dec 10, 2008

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SOURCE: 1998 Cavalier No Spark in cylinders 1 & 4

ignition mod. grounds,pcm or timing belt could all be it but, I would have to look at timing first.

Posted on Jan 17, 2009

inhisname
  • 76 Answers

SOURCE: timing belt failure? 1997 chevy s10 2.2L 4 cyl.

hi bob, take off the oil filler cap, have someone crank the engine while you look inside, if the rockers are not moving, it is a broken or slipped belt, if the rockers are moving try a compression test to see if the problem is limited to one cylinder or all of them....does the sound of the engine cranking seem faster than normal? is there any noise (clanking/banging) while cranking? marty good luck let me know!

Posted on Jun 07, 2009

IgotManswers
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SOURCE: Auto Zone run a diagnostic test on my truck and

To keep it inexpensive i would actually try to change the downstream and upstream o2 sensors first one at a time and see if the code goes away.

Posted on Dec 23, 2010

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SOURCE: i have a 1999 chevy cavalier and it has a knocking

Can't tell for sure, there are a lot of different kinds of engine noises. For your year of Cavalier they are common for a knock noise coming from the front timing cover area. It is caused from the timing CHAIN rattling on the tensioner. It is generally caused by lack of oil changes and the oil gets very thick. There is a very small passage that allows oil to enter the timing chain case, and if its thick or dirty it doesn't. Best to have it diagnosed to what area or possible cause. It will also cause the engine to labor and not start immediately.

Posted on Feb 26, 2011

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How do you adjust valves on a 2006 3.5L V6 Toyota Avalon?


There is a Toyota Technical Service Bulletin issued for this:-
T-SB-0291-08 September 11, 2008 2GR-FE Valve Timing

Procedure Service Category Engine/Hybrid System Section Engine Mechanical Market USA Applicability YEAR(S) MODEL(S) ADDITIONAL INFORMATION 2005 - 2009 Avalon 2007 - 2009 Camry VDS(s): BK46K 2008 - 2009 Highlander 2006 - 2009 RAV4 Engine(s): 2GR VDS(s): BK31V, BK32V, BK33V, BK34V, ZK31V, ZK32V, ZK33V, ZK34V, ZK35V 2007 - 2009 Sienna Introduction This service bulletin provides information regarding valve timing inspection and service guidelines for vehicles equipped with 2GR-FE engines. © 2008 Toyota Motor Sales, USA Page 1 of 5 T-SB-0291-08 September 11, 2008 Page 2 of 5 2GR-FE Valve Timing Procedure Introduction (Continued) Figure 1. 3 2 1 5 9 8 7 6 4 1 RH Bank Intake Camshaft Timing Gear 2 RH Bank Exhaust Camshaft Timing Gear 3 RH Bank No. 2 Timing Chain 4 Crankshaft 5 Idler Gear 6 Timing Chain 7 LH Bank No. 2 Timing Chain 8 LH Bank Exhaust Camshaft Timing Gear 9 LH Bank Intake Camshaft Timing Gear Warranty Information OP CODE DESCRIPTION TIME OFP T1 T2 N/A Not Applicable to Warranty © 2008 Toyota Motor Sales, USA T-SB-0291-08 September 11, 2008 Page 3 of 5 2GR-FE Valve Timing Procedure Inspection 1. Set the No. 1 cylinder to TDC/compression. A. Set the timing mark to 0 on the timing chain cover by rotating the crankshaft clockwise. B. Verify the timing marks on the camshaft timing gears are in general alignment with the timing marks of the camshaft bearing cap: TIMING MARK IDENTIFICATION CYLINDER BANK INTAKE GEAR MARK EXHAUST GEAR MARK RH Bank (Bank 1) Small Mark Single Line LH Bank (Bank 2) Large Mark Double Line HINT When the engine is correctly timed, the timing marks will NOT perfectly align. Figure 2. Figure 3. RH Bank Exhaust Camshaft Timing Gear 1 2 1 Bearing Cap Timing Mark 2 Gear Timing Mark Figure 4. RH Bank Intake Camshaft Timing Gear 2 1 1 Bearing Cap Timing Mark 2 Gear Timing Mark © 2008 Toyota Motor Sales, USA T-SB-0291-08 September 11, 2008 Page 4 of 5 2GR-FE Valve Timing Procedure Inspection (Continued) Figure 5. LH Bank Intake Camshaft Timing Gear 1 2 1 Bearing Cap Timing Mark 2 Gear Timing Mark Figure 6. LH Bank Exhaust Camshaft Timing Gear 1 2 1 Bearing Cap Timing Mark 2 Gear Timing Mark HINT If the timing marks appear vastly out of alignment, turn the crankshaft one revolution (360 ) clockwise and note the position of the timing marks. Component Removal Guidelines 1. If engine disassembly is required that involves removing the camshafts or timing gears, set the #1 cylinder to TDC compression, wipe away any oil, and mark the following items in relation to each other prior to disassembly: • Timing gears • Timing chain • Timing chain No. 2 NOTE This relationship MUST be maintained. The intake gear is timed in relation to the crankshaft via the timing chain; the exhaust gear is timed in relation to the intake gear via the No. 2 timing chain. © 2008 Toyota Motor Sales, USA T-SB-0291-08 September 11, 2008 Page 5 of 5 2GR-FE Valve Timing Procedure Component Removal Guidelines (Continued) 2. If NEW camshaft timing gears or the No. 2 timing chain are being installed, the two yellow links on the No. 2 timing chain can be used to ensure correct relationship between the intake timing gear and the exhaust timing gear. Figure 7. 1 1 Yellow Link A. Align the paint mark on the timing chain with the intake gear timing mark (to ensure the intake gear is correctly timed to the crankshaft). Figure 8. RH Bank and LH Bank 3 3 4 3 3 4 5 4 5 4 1 2 1 RH Bank 2 LH Bank 3 Yellow Link 4 Gear Timing Mark 5 Timing Chain Paint Mark B. Align the two yellow links on the No. 2 timing chain to the timing marks on

May 04, 2015 | 2006 Toyota Avalon XLS

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What happens when a timing belt breaks - Blazer


When a timing belt breaks, the engine will stop (never happens unless its running). When you try to restart it:
  1. The engine will turnover with what will seem like extra energy (faster, easier than normal)
  2. The crankshaft and pistons continue as they always have
  3. The cam shaft no longer turns at all
  4. As a result, the valves no longer open and close. Instead they remain in the position dictated by where the camshaft came to rest.
  5. As a result, there will be no compression in 75% of your cylinders (without compression, the engine cranks faster when you try to start it, no resistance).
  6. Those with compression will not have a Fuel air mix as it cant get in through closed valves.
  7. There is the possibility with continued cranking that a piston can collide with an extended open valve causing further damage.
  8. Other symptoms include, gas smell, backfires through air intake and exhaust, the 'almost start', lots of battery power.

Best regards and good luck,

Mike

on Jul 22, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

How to align the timing marks on camshafts and crankshaft when replacing a broken timing belt on a 3.0liter engine


Better make sure it isn't a no tolerance engine first. If it is, the pistons could have slapped the valves. This will bend the valves, break them, or punch holes in the pistons. I know the 4 cylinders are not tolerance, but not sure on the six cylinder. You can do a leak down test, but you have to basically pull the cams, So the valves are shut. Then put air pressure to each cylinder. If the cylinder is bad it will leak air(a lot) out of the throttle body, exhaust(out of the tail pipe) or into the crank case.

Mar 15, 2015 | 1998 Mitsubishi Montero Sport

1 Answer

Toyota timing marks


One mark is on cam gear mark on head line it hole in gear
camshaft intake and exhaust valve rocking that. Tic then on the back of two cam gears have to ,match up turn and match two sets of marks then back to tic them crank gear
one is straight up replace belt I would change water pump and seals also? good luck

Aug 12, 2014 | 1998 Toyota Camry

1 Answer

1987 toyota 22re. head was taken off by siomeone who did not mark or align anything. I need to know how to get it on the compression stroke.


With the head off, the bottom end doesn't know compression from exhaust from squat. The crank just keeps pushing the pistons up and down. You set the #1 cylinder at the top of travel, the mark on the pointer scale must be at zero, then when you have the head on with the camshaft sprocket on its mark, and the timing belt or chain on, you should be at TDC on the compression stroke. To verify, both valves on #1 should be closed-the camshaft lobes for #1 should be more or less pointing up-away from the valves.
See? The valve train is what determines compression stroke vs. exhaust stroke. On compression, both valves are closed. On the exhaust stroke, the exhaust valve will be open. As long as you get the camshaft sprocket on the right mark and the crank sprocket at zero-or on its mark-the timing should be right.

Jan 20, 2014 | Toyota Pickup Cars & Trucks

1 Answer

Replacing timing belt; need timing belt markings for 2000 mazda protege


If it has the twin camshafts, then you need to align the bottom crankshaft pulley marking (there's only one marking at top dead centre). Then you'll need to align the two camshaft pulleys. You need to use the first two sets of markings and then double check the markings on the camshafts themselves, within the valve cover area. Always double check the crank shaft sensor is aligned properly on re-assembly as misalignment will result in a non-start and you might doubt your own work. Don't worry about timing belt failure or misalignment on the twin cam engine as this is a "safe-engine" and will not result in any damage.

Oct 30, 2012 | 1998 Mercedes-Benz CLK

4 Answers

Codes p0011 and p0021


P0011 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)
P0021 "A" Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

Oct 10, 2011 | 2004 Ford F150

2 Answers

I have problem with my engine 4K toyota. It heard an engine noise during idling, for my little knowledge in engine repair, can you give me any procedure mannuals in adjusting engine valves for my...


Valve Clearance Valve clearance is there to allow the valves to cool in between combustion events (spark), and to make sure the valve closes properly and contains the combustion explosion. You need to cool the valves a little bit, the exhaust valve moreso than the inlet, as it's what sees the most heat as spent burnt gases go past it into the exhaust port. Run too little clearance and you'll cause the valve to "weld" a little bit to its' seat every time it closes, and then take seat metal off again when it opens. Do this enough times and you burn out the valve seat and need the head reconditioned. However, by running less clearance, the valve stays open for that little but longer, and you get more air in and out of the motor, and make more power. Run too much clearance and your motor just sounds like a diesel and loses power and tappet rattle annoys you while you're driving, so it's better to err on the side of caution.
The stock valve clearance (0.008" inlet / 0.012" exhaust, warm) is pretty good for any of the cams I've listed above, they're well-sized street cams, not really wild top heavy race cams that require super high compression to work, so don't be afraid to close the valves up a bit from the suggestions of the cam grinder, which will usually say between 0.010" and 0.014". There are a few ways to set your valve clearances:
Yellow Book Method This is from the factory 3K/4K/5K engine manual, aka The Yellow Books. It's the quick and lazy method.
Set engine to #1 TDC. Crank pulley timing mark should be on 0, distributor rotor should be pointing towards spark plug 1 or 2. Set tappets (counting from the front) 1, 2, 3 and 5. Rotate engine 360 degrees, crank pulley to 0 again, distributor rotor turned 180 degrees. Set tappets 4, 6, 7 and 8.
Nine Method I've never really gotten into doing this, takes too much time and maths for my liking :P Rotate the engine through its' range of movement, as one valve is "on the rock" of its' max lift, subtract the valve number from 9 and that's the tappet you should be setting. For example, if #8 valve is open, set clearance on valve #1. If valve #7 is open, set clearance on #2. And so on.
Stewart uses this method, and rotates the camshaft through its entire base circle and sets the clearance at the highest point. Which is a pretty good idea, as it compensates for the possibility that the base circle has been ground unevenly, and allows you to run the proper valve clearance that you want to run, instead of something that may be a few thou larger in reality.

Feb 10, 2011 | Toyota Corolla Cars & Trucks

1 Answer

Hi, I am looking for a timing belt diagram for a 1998 2.5ltr Subaru Outback or can you tell me which timing marks on the sprockets line up to the encasing.


Timing Belt Cover, Belt & Sprockets Removal & Installation 2.5L Engine To Remove:
  1. Remove the drive belts.
  2. Remove the A/C compressor drive belt tensioner. Timing belt & cover DOHC exploded view subaru-03-25-6470.gif

  3. Remove the crankshaft pulley.
  4. Remove the mounting bolts and left timing belt cover.
  5. Remove the mounting bolts and right timing belt cover.
  6. Remove the mounting bolts and front timing belt cover.
  7. Vehicles W/ M/T: Remove the timing belt guide.
  8. Ensure that the timing belt rotation arrows are still visible. If the marks are worn off, place new rotation marks on the belt. Timing belt alignment marks DOHC subaru-03-25-6472.gif

  9. Turn the crankshaft using a breaker bar and special adapter socket on the crankshaft. Align the timing mark on the crankshaft sprocket (1), left intake sprocket (2), left exhaust sprocket (3), right intake sprocket (4) and right exhaust sprocket (5) with the notches in cylinder block and timing belt cover.
  10. Paint alignment marks on the timing belt at the crankshaft and camshaft sprockets timing marks. CAUTION
    Do not turn the camshaft sprockets with the timing belt removed. The valves heads will contact each other causing the valve stems to bend.
  11. Remove the lower right idler pulley.
  12. Remove the timing belt.
  13. Remove the upper right idler pulley.
  14. Remove the lower left (toothed) idler pulley.
  15. Remove the belt tensioner.
  16. Hold the sprocket and remove the left intake and exhaust camshafts.
  17. Hold the sprocket and remove the right intake and exhaust camshafts.
  18. Remove the crankshaft sprocket.
To Install:
  1. Install the crankshaft sprocket.
  2. Hold the sprocket and install the right intake and exhaust camshafts with the mounting bolts. Tighten 58 ft-lb (78 Nm).
  3. Hold the sprocket and install the left intake and exhaust camshafts with the mounting bolts. Tighten 58 ft-lb (78 Nm).
  4. Reset the automatic belt tensioner as follows:
    • Remove the mounting bolt and belt tensioner. NOTE: Do not exceed more than 2,205 lb. (9,807 N).
    • Place the belt tensioner on a press. Press the adjuster rod down gradually (using more than 3 minutes) 66- lb (165 N) or more until the adjuster rod is aligned with the stop pin hole in the cylinder.
    • Insert a 0.08 in (2 mm) diameter pin or hex wrench into the pin hole to lock the adjuster rod.
    • Install the automatic belt tension adjuster with the mounting bolt. Tighten 18 ft-lb (25 Nm).
  5. Install the lower left (toothed) idler pulley. Tighten 29 ft-lb (39 Nm).
  6. Install the upper right idler pulley with the mounting bolt. Tighten 29 ft-lb (39 Nm). Crankshaft sprocket and oil pump cover alignment marks 2.5L DOHC subaru-03-25-4890.gif

  7. Align the timing mark on the crankshaft sprocket with the mark on the oil pump cover. Timing belt alignment marks DOHC subaru-03-25-6472.gif

  8. Align the single timing mark on the right exhaust camshaft sprocket with the notch on the timing belt cover.
  9. When the single timing mark on the right exhaust camshaft sprocket is aligned with the notch on the timing belt cover, ensure that the double lines on the intake camshaft and exhaust camshaft sprockets are aligned.
  10. Align the single timing mark on the left exhaust camshaft sprocket with the notch on the timing belt cover by turning the sprocket counter clockwise (viewed from front of engine).
  11. Ensure that the double lines on the intake camshaft and exhaust camshaft sprockets are aligned when the single timing mark on the left exhaust camshaft sprocket is aligned with the notch on the timing belt cover. CAUTION
    • The camshafts can be rotated independently causing the valves heads to contact each other resulting in bent valve stems.
    • When the timing belt is removed the camshafts will turn to the lowest cam lobe position by the force of the valve springs. Before installing the timing belt the 4 camshafts are in the lowest lift position (valves closed).
    • When the camshafts are rotated to install the timing belts, # 2 intake and # 4 exhaust cam lobes of the left camshafts are held to push their corresponding valves down. In this position, these valves are held in the open position. Right camshafts are held so their cam lobes do not push the valves down.
    • The left camshafts must be rotated from the lowest lobe position to the position where the timing belt can be installed at the smallest possible angle in order to prevent intake and exhaust valve contact. Camshaft sprockets rotation subaru-03-25-6473.gif

    • Do not turn the camshafts in the direction shown in the illustration because the valves will open at the same time and contact each other.
    CAUTION
    If the timing belt alignment is off the mark buy more than 3 teeth, the valves and pistons may have contact.
    Timing belt alignment marks DOHC subaru-03-25-6472.gif

  12. Align the timing marks on the belt with the marks on the sprockets in the numerical order shown in the illustration.
  13. Install the lower right idler pulley with the mounting bolt. Tighten 29 ft-lb (39 Nm).
  14. Ensure that the timing mark alignment is correct and remove the tensioner stop pin.
  15. Vehicles W/ M/T: Install the timing belt guide and temporarily tighten the mounting bolts.
  16. Vehicles W/ M/T: Measure the clearance between the guide and timing belt. The clearance should measure 0.039 ± 0.020 in (1.0 ± 0.5 mm).
  17. Vehicles W/ M/T: Tighten the guide bolts 7.2 ft-lb (9.8 Nm).
  18. Install and secure the front timing belt cover with the mounting bolts.
  19. Install and secure the right timing belt cover with the mounting bolts.
  20. Install and secure the left timing belt cover with the mounting bolts.
  21. Install the crankshaft pulley.
  22. Install the A/C compressor drive belt tensioner.
  23. Install the drive belts.
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Sep 30, 2010 | Subaru Outback Cars & Trucks

2 Answers

My rockerarms are loose on my 2.2liter engine. how can i adjust them?


Adjust the valves when the lifter is on the base circle of a camshaft lobe:
  1. Crank the engine until the mark on the crankshaft pulley lines up with the O mark on the timing tab. Make sure that the engine is in the No. 1 firing position. Place your fingers on the No. 1 rocker arms as the mark on the crank pulley comes near the O mark. If the valves are not moving, the engine is in the No. 1 firing position. If the valves move, the engine is in the No. 4 firing position; rotate the engine one complete revolution and it will be in the No. 1 position.
  2. When the engine is in the No. 1 firing position, adjust the following valves: Exhaust - 1,3 Intake - 1,2
  3. Back the adjusting nut out until lash can be felt at the pushrod, then turn the nut until all lash is removed (this can be determined by rotating the pushrod while turning the adjusting nut). When all lash has been removed, turn the nut in 1 1 / 2 additional turns, this will center the lifter plunger.
  4. Crank the engine one complete revolution until the timing tab and the O mark are again in alignment. Now the engine is in the No. 4 firing position. Adjust the following valves: Exhaust - 2,4 Intake - 3,4

May 12, 2010 | 1992 Chevrolet Cavalier

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