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Spark plug wont tighten in engine - Troy Bilt Tb70ss Gas Trimmer

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Sounds as if you have stripped the threads on the head; NOT GOOD! You will probably need to buy a new head for your trimmer.

Good Luck,


Posted on Jul 03, 2009

  • Jim Parker
    Jim Parker Jul 06, 2009

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I have a 1999 GMC 350 I need the head torque specs just replace head gaskets can anyone help

  1. Clean the cylinder gasket surfaces on the engine block.
  2. Inspect the dowel pins (cylinder head locator) for proper installation.
  3. Clean the cylinder head gasket surfaces on the cylinder head.
  4. Place the NEW cylinder head gasket in position over the dowel pins (cylinder head locator).The cylinder head gasket is not directional and may be installed using either side facing the engine block.
  5. Install the cylinder head to the engine block. Guide the cylinder head carefully into place over the dowel pins and the cylinder head gasket.
  6. Install the cylinder head bolts.
  7. Tighten the bolts in the sequence shown in the image below on the first pass to 30 [n-m] (22 lb ft).

  8. Use a torque angle meter in order to tighten the cylinder head bolts in sequence on the final pass. Tighten:
    • Tighten the long bolts (1, 2, 5, 6, 9, 10, and 13) on the final pass in sequence to 75 degrees.
    • Tighten the medium bolts (14 and 17) on the final pass in sequence to 65 degrees.
    • Tighten the short bolts (3, 4, 7, 8, 11, 12, 15, and 16) on the final pass in sequence to 55 degrees.

  9. Measure the NEW spark plugs for the proper gap.Adjust the spark plug gap if necessary.
    Spark plug gap to 1.52 mm (0.060 in)
  10. Install the NEW spark plugs. Tighten:
    • Tighten the spark plugs for a USED cylinder head to 15 [n-m] (11 lb ft).
    • Tighten the spark plugs for the initial installation of a NEW cylinder head to 30 [n-m] (22 lb ft).

  11. If reusing the engine coolant temperature (ECT) gauge sensor, apply sealant GM P/N 12346004 to the threads of the ECT gauge sensor.
  12. Install the ECT gauge sensor.Tighten:
    Tighten the ECT gauge sensor to 20 [n-m] (15 lb ft).

head torque-zavst4atb1a5mamouuek2kkm-3-0.png

Mar 20, 2018 | GMC Cars & Trucks

1 Answer


Could be a faulty plug, over tightening them during installation can also cause them to break.

Feb 08, 2015 | Cars & Trucks

1 Answer

We r trying to change the spark plugs in a 2002 kia sedona. and we r trying to take the intake manifold off but wont come off. we have loosened every bolt. any suggestions? thanks..

According to what I can find, you don't need to take the intake manifold off:
3.5L Engine

  1. Disconnect the negative battery cable.
    WARNING When disconnecting the cable, only pull on the plug cable boot, never on the wire itself!
  2. Detach the spark plug cable from the spark plug.
  3. Use spark plug wrench to remove the spark plug(s) from the cylinder head.
    WARNING Do not let any dirt or debris get into the engine through the spark plugs holes while when are removed.

To install:
  1. Install the spark plug and tighten to 15-22 ft. lbs. (20-30 Nm). Do not over-tighten the spark plug.
  2. Attach the spark plug wire(s) to the spark plug(s).
  3. Connect the negative battery cable.

Aug 20, 2011 | 2002 Kia Sedona

1 Answer

I got a 1994 toyota camry V6. When i change the spark plugs I notice that the spark plugs where fill with engine oil

common for the well around the plugs to fill with oil.ensure the gasket fot the cam cover is correctly tightened using the correct sealing compound/gasket(both).if its just a small amount leave it wont hurt.

Jan 10, 2011 | 1994 Toyota Camry

2 Answers

How do you replace the spark plugs on a 1998 2.7 Intrepid?

Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.
  • Prior to removing the spark plug, spray compressed air around the coil area and spark plug.
  • Remove electrical connector from ignition coil.
On 3.5L engines, it is necessary to loosen the screws by alternating back and forth. Do not lose the spacers under the coil when loosening the screws.
  • Remove 2 fasteners from ignition coil.
  • Remove ignition coil assembly.
  • Remove the spark plug using a quality socket with a rubber or foam insert.
  • Inspect the spark plug condition.
Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion.
  • To avoid cross threading, start the spark plug into the cylinder head by hand.
  • 3.5L engines tighten spark plugs to 28 N·m (20 ft. lbs.) torque, 2.7L engine tighten spark plugs to 17.6 N·m (13 ft. lbs.).
  • Install ignition coil assembly onto spark plug.
  • Install coil screws and tighten: 2.7L engine to 6.2 N·m (55 in. lbs.), 3.5L engines to 6.7 N·m (60 in. lbs.).
  • Connect the electrical connector.

Aug 27, 2010 | 1996 Dodge Intrepid

1 Answer

Replacing sparkplugs on a 2003 YukonXL 5.3 Litre

Here's how to remove the spark plugs.

  1. Remove the engine sight shield, if necessary.
  2. Disconnect the spark plug wire from the spark plug. • Twist each spark plug wire 1/2 turn. • Pull only on the boot in order to remove the wire from the plug.
  3. Loosen the spark plug 1 or 2 turns.
  4. Brush or air blast away any dirt from around the spark plug.
  5. Remove the spark plug. If removing all the plug at one time, place each plug in a tray marked with the corresponding cylinder numbers.
Installation Procedure
  1. Inspect the spark plug gap. Adjust the plug as needed. Specification
    Spark plug gap: 1.524 mm (0.060 in)
  2. Hand start the spark plug.
  3. Tighten the spark plug. Tighten • For used heads tighten the plug to 15 N·m (11 lb ft). • For new aluminum heads tighten the plug to 20 N·m (15 lb ft). • For new iron heads, tighten the plug to 30 N·m (22 lb ft).

Aug 12, 2010 | 2003 GMC Yukon XL

2 Answers

How to change spark plug where are they located at

Your spark plugs can be located in 2 different locations.
1 if your engine is sitting front to back of the vehicle your plugs will be located on the drivers side and the passengers side of the vehicle.
2 if your engine is set from one wheel well to the other than your spark plugs will be located on the front of the engine ( front towards the bumper/grill.) and next to the firewall.

4.6L, 5.4L & 6.8L Engines
  1. Disconnect the negative battery cable.
  2. Remove the coil on plugs as outlined under Ignition Coil in this section.

  3. Remove the spark plugs.
  4. Inspect the spark plugs
  5. Adjust the spark plug gap as necessary. Proper gap is 0.52–0.56 in. (1.32–1.42mm).

  1. Install the spark plugs and tighten them to 13 ft. lbs. (18 Nm) for 4.6L and 5.4L SOHC engines. For 5.4L DOHC and 6.8L engines, tighten the spark plugs to 15 ft. lbs. (20 Nm).
  2. Install the coil on plugs.
  3. Connect the negative battery cable.

Jan 09, 2010 | 2002 Ford Expedition

1 Answer

How do I change the spark plugs?

Engine off
Remove one spark plug wire / using correct size spark plug wrench with / rubber boot designed for spark plugs (deep well socket with rubber boot) remove (1) spark plug / gap new replacement spark plug to specs / install replacement spark plug by hand into head of engine /finger tight /using spark plug socket and rachet finish tighting spark plug / tighten just beyond snug being careful to not over tighten and breaking spark plug ..if in doubt about the proper tighting consult motor manual for torque specs. use torque specs in conjunction with appropiate torque wrench . Re-install removed spark plug wire ...proceed to remaining spark plugs doing one at a time until completed.

Jan 09, 2010 | 2004 Chevrolet Malibu

1 Answer

Need to change spark plug on a 2003 Saturn L300 myself. Any information about how to do this would be appreciated as it seems to be a debacle just to get in there.

For the L- Series Saturns you first take off the head or very top of the head gasket that displays the specs of the engine( 2.2L [in red], saying its a 16 valve, etc..) It will have 4 bolts on the head. After you unscrew those and take them out, gently pull up on the head. Taking it off slowly will pull the spark plug wires off of the spark plugs. Once done, set a side the head so it will not move and get a Ratchet and extension, and probably a 5/8ths deep socket, preferably a spark plug 5/8th deep socket( has a rubber boot inside to keep the spark plug held in place when changing) . You may then proceed to take out the spark plugs. Go one at a time when replacing(take out then put another in) if not, the engine may misfire and have some other problems as well. People say you. After it has been loosened, take ratchet off and while only usIng the extension, unscrew slowly and then pull out straight as possible. Same when putting it in. While the new spark plug is fit inside the Spark Plug Socket (5/8th), put in holy slowly and straightly until you fill the threads are aligned. Then tighten by hand only using extension. When it wont go anymore with only finger tightening, attach ratchet and turn about 1/4 of a turn. Over tightening is not good as well with under tightening. Some say a torque wrench is needed but that's nonsense. As long as you follow the 1/4- 1/2 turn rule you'll be fine.

Oct 20, 2009 | 2006 Saturn L300

1 Answer

My gs 750 was running ok, but now it wont start with the elec start and when i try to kick start it. it takes alot of effert to start and now i cant get it to start no more

Do the following test:- (1) check if theres sparks at the spark plugs, (2) check if the spark plug/s are getting wet with gas.
If the plugs have fouled up i.e. turn blackish due to too 'rich', you better replace them and retune the engine.
Check the valve clearance and adjust accordingly and also go thro the air-mixture screw/s ...tighten them in slowly being careful not to tighten them too hard to the last to avoid damaging the tip of the screws.
Try to start the bike's engine should start taking into account tht its now got a new set of spark plugs and let it run to some good temperature thn set the air-mixture screw/s:-
release to 2 and half turns (turn outwards).
From the sound and the running of the engine you would know if its at its running ok can however go in or out + - a little to get good idling of the engine ...go for a spin and recheck the spark plugs to its condition and offcourse for the starting issue if its solved.
Hope this helps!

Jul 30, 2009 | 1977 Suzuki GS 750

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