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Broke timing belt looking to install correctly from starts

Broken timing belt have new one and replased rocker arm

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It appears you posted this in the telescope topic.

Posted on May 16, 2009

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I have an 03 malibu with a 3.1 litre. Replaced the head and intack gaskets. All back together and 2 rocker arms bolts broke. So i got new head and same two rocker arm bolts broke again why


It sounds as though something is wrong with the valve or camshaft timing and valves are touching the pistons.

If the bolts broke and you hadn't got that far it is possible you haven't turned the engine back a little before fitting the head or ensuring the cam timing is almost correct before refitting the head.

Mar 15, 2015 | 2003 Chevrolet Malibu

3 Answers

Why does my 8hp Honda keep braking rocker arms


stuck valves are the main cause of breakig rocker arms

Sep 22, 2014 | Honda 8 HP Engine

1 Answer

Hi, i am looking at a 93 nissan pathfinder, it has a clean interior, a straight body, but the guy says it have a broken rocker arm. I know what rocker arms are. can you tell me, what damage this would do...


Just about any vehicle is worth $200 for scrap.
It would depend on how or why the rocker arm broke if the engine is worth fixing. You would not know without removing the valve cover and looking at the rest of the parts.

Feb 08, 2014 | 1993 Nissan Pathfinder

1 Answer

Installed new oil pump and now have broken rocker arms


THe rocker arms are broken because there was not enough downward movement in the valves to allow the cam to complete its turn. IT happens when the valve spring retainer either hits the top of the valve guide or the valve springs are fully compressed forming a solid block . If you have hydraulic valve adjusters I would be suspicious of a lack of movement (seized) in the ones that broke the rocker arms

Feb 20, 2013 | Ford F-150 Cars & Trucks

1 Answer

2000 CHRYSLER SEBRING 2.5 ROCKER ARMS BROKE 4 BENT VALVES WHAT WOULD CAUSE THIS


broken timing belt timing not correct....in any case engine is finished ....dont rebuild buy donor cheaper and faster

Aug 17, 2012 | Chrysler Sebring Cars & Trucks

1 Answer

I was driving my car today and it just died; it wouldnt start whatsoeveer. However It did act like it wanted to. My check engine light was on and we checked it and it said to change the cam sensor bank 1....


I think the timing belt broke. Remove the oil fill cap, then have someone crank the engine over when you look inside the valve cover to see if the rocker arms or camshaft is turning. If no, the belt is broken and needs to be replaced.

Apr 17, 2011 | 2002 Mitsubishi Galant

2 Answers

I need rocker torque for 2003 pontiac with 3.1liter


Left side:

To install:
  1. Lubricate all the valvetrain components with engine oil.
  2. Install or connect the following:
    • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
    • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
    • PCV valve to the rocker arm cover
    • Coolant tube with the thermostat bypass hose and tighten the bolt to 98 inch lbs. (11 Nm) and the nut to 18 ft. lbs. (25 Nm)
    • AIR check valve pipe and torque the adapters to 22 ft. lbs. (30 Nm)
    • Engine mount strut and torque the bolt to 35 ft. lbs. (48 Nm)
    • Spark plug wires
    • Negative battery cable
Right side:

To install:
  1. Lubricate all the valve train components with engine oil.
  2. Install or connect the following:
    • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
    • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
    • Power brake booster vacuum pipe to the plenum
    • EVAP solenoid and ignition coil assembly
    • Spark plug wires
    • Alternator bracket and torque the bolts to 37 ft. lbs. (50 Nm)
    • Alternator and torque the bolts to 37 ft. lbs. (50 Nm)
    • Accessory drive belt
    • Negative battery cable
  3. Start the vehicle and verify no leaks.

Feb 06, 2010 | 2003 Pontiac Grand Prix

1 Answer

Engine has no compression


when the timing belt broke it also bent the valves,hence the broken rocker arm. pull the head and see the valves are bent

Apr 09, 2009 | 2002 Mitsubishi Lancer

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