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Would using Loctite thread locker on my 2004 Chevy Optra crankshaft pulley bolt be a problem in the near future during its removal during the replacement of the timing belt on the scheduled maintenance?

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It will only be if you use the wrong type of loctite. There are 3 different kind. the kind you want is the blue. it will hold the bolt tight but still come off wasily enough when you need it to. The green is hardly worth the time it just not good for anything your going to count on, and the red is the kind that is not designed to coem off at all. So go with the blue asdn you'll be fine. hope this helps

Posted on Jul 02, 2009


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How do you remove the crankshaft dumper pully?

Published: 11-May-2011
Engine - V8 4.4L Petrol - Crankshaft Pulley
In-vehicle Repair
Special Tool(s)

Holding Tool Crankshaft Pulley
Bolts and spacers
Remover, crankshaft pulley
Remover, crankshaft seal
Installer, crankshaft seal
Adapter - Crankshaft seal installer
303-1100-01 Removal
  1. Disconnect the battery ground cable.
    For additional information, refer to: Specifications (414-00 Battery and Charging System - General Information, Specifications).
  1. WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands. Raise and support the vehicle.
  1. Remove the accessory drive belt.
    For additional information, refer to: Accessory Drive Belt (303-05B Accessory Drive - V8 4.4L Petrol, Removal and Installation).

  1. Remove the cooling fan shroud.
    • Release 2 clips from the cooling fan lower shroud.
    • Release and remove the cooling fan lower shroud from the cooling pack.

  1. Using the special tools, retain the crankshaft pulley.
  1. CAUTION: Under no circumstances should the crankshaft setting peg, 303-645, be used in the following operations, to restrain the crankshaft. NOTE: The crankshaft pulley retaining bolt will be very tight.
    Remove the crankshaft pulley retaining bolt.
    • Discard the bolt.
  1. Remove the special tools.

  1. Using the special tools, remove the crankshaft pulley.
    • Collect the locking ring.
  1. Remove the special tools from the crankshaft pulley.

  1. Using the special tool, remove the crankshaft front seal.
    • Remove the outer section of the seal.
    • Repeat the process to remove the inner section of seal.
  1. Check the crankshaft damper pulley and locking ring for damage.
  1. Clean all the crankshaft pulley mating faces.

  1. Using the special tools, install the crankshaft front seal.
    • Lubricate the seal with clean engine oil.
    • Use the discarded crankshaft bolt with the service tool.
  1. Install the crankshaft pulley.
    • Lubricate the seal with clean engine oil.
  1. Install the crankshaft pulley locking ring.
  1. CAUTION: The screw thread in the crankshaft pulley must be cleaned out before installing a new crankshaft pulley bolt. Install, but do not tighten, the new crankshaft pulley bolt.
  1. CAUTION: Under no circumstances should the crankshaft setting peg, 303-645, be used in the following operations, to restrain the crankshaft. Using the special tools, retain the crankshaft pulley.
    • Tighten the crankshaft pulley bolt to 380 Nm (280 lb.ft).
  1. Remove the special tools.
  1. Install the cooling fan lower shroud.
  1. Install the accessory drive belt.
    For additional information, refer to: Accessory Drive Belt (303-05B Accessory Drive - V8 4.4L Petrol, Removal and Installation).
  1. Connect the battery ground cable.
    For additional information, refer to: Specifications (414-00 Battery and Charging System - General Information, Specifications).

Jan 27, 2016 | 2006 Land Rover Range Rover Sport


2004 Pilot timing belt replacement

(for the 105,000 mile timing belt service)

Part List :
-Timing belt: 14400-P8A-A02
-Adjuster automatic (hydraulic tensioner): 14520-P8E-A01
-Adjuster - timing belt: 14510-PGE-A01
-Idler pulley - timing belt: 14550-P8A-A01 (OR) 14550-PGE-A01 (there are 2 numbers listed)
-Alternator/Compressor belt: 38920-P8F-A02
-Power steering belt: 56992-P8A-A01
-O-RING (8.8X1.9): 91302-GE0-000
-Fender trip clips (X7): 91501-S04-003

Special Tools Needed:
Honda Crankshaft Pulley Removal Tool
3/4" breaker bar

-Remove tire and place the Pilot on a jack stand.

-Remove the clips holding the fender liner and lower splash shield in place (x7) and fold them out of the way.

-Make sure the #1 piston is on top dead center using the marks on the crank pulley and lower timing belt cover (19mm in the crank pulley).

-Remove the Alternator-Compressor belt (14mm boxend) & Power Steering belt. (2-12mm and 1-12mm tensioner bolt)

-Loosen the crank pulley. If you have an impact wrench or a long breaker bar it makes it easier to remove the bolt. You will also need a special tool crankshaft pulley holder (50mm) (19mm and special tool).

-Remove the side engine mount bracket (5-14mm bolts).

-Remove the crankshaft pulley.

-Remove the oil dipstick & tube (10mm).

-Remove the front & rear 'upper covers' of the timing belt housing, moving the wire harness out of the way first (5-10mm bolts for each cover).

-Remove the lower cover (7-10mm bolts).

-Remove the engine mount bracket that is bolted to the block (3-14mm bolts).

-Remove the hydraulic tensioner (2-10mm bolts).

-Remove the tensioner pulley (you will reuse the inner sleave) (14mm bolt).

-Remove the idler pulley bolt (14mm bolt with thread locker on it) (I used Loctite 242 during the reinstall because I had it on the shelf).

-Remove the timing belt.

-Before installing a new timing belt, make sure the pulleys, belt guide plate, upper & lower covers are clean and check to see if the crank and cams have rotated (mine did not move).

-The install is the reverse order of removal (make sure you torque everything correctly!)

-The removal of the lock pin in the hydraulic tensioner gave me a little trouble so I used pliers.

-Once the crank pulley is back on, check the lower timing mark (and the cam marks) before the top covers are installed.

on Oct 13, 2014 | 2004 Honda Pilot

1 Answer

Why crankshaft pulley come loose ?

check the bolt holes and bolts to inspect for damaged threads and repair or replace as needed. if this is good you may need to add Loctite to the threads of the bolts. use blue Loctite as this will allow removal later on if you need to remove the bolts.

Aug 23, 2014 | 1998 Honda Prelude

1 Answer

Torque specs

1) Install the crankshaft pulley.
2) Install the pulley bolt.
To lock the crankshaft, use ST.
(1) Clean the crankshaft pulley thread using an
air gun.
(2) Apply engine oil to the crankshaft pulley bolt
seat and thread.
(3) Tighten the bolts temporarily with tightening
torque of 44 N·m (4.5 kgf-m, 33 ft-lb).
(4) Tighten the crankshaft pulley bolts.
Tightening torque:
127 N·m (13 kgf-m, 94.0 ft-lb)

Apr 10, 2014 | 1997 Subaru Outback

1 Answer

Cant loosen the bolt on the harminic balancer pulley

no engine stated, so any help will be wrong, !!!!!!
V6? we cant open hood and look, so we are blind as bats. here.

bad input nets bad output , just like a computer.

i dont think its LHT. left hand treads.
its either rusty,
or last guy used red loctite and needs 300F heat to get IT, soft.
or your not trying up to 150fl-lbs of reverse torque.
my damper is at 100/ft/lbs
and will take way more to break free (no locktite)
my guess 2 is this is a slush pump car, a A/T tranny?
and as such , you cant lock the M/t in 5th gear?
sure, and the FSM shows what to do , to get it off for A/Ts
some engines, have special tool.
and or a pulley locking device. (home made works, made many)
some guys just use impact gun and strip the treads out of the crank
and the new FSMs all say, (DONT DO THAT, exactly)
in a shop the dork that does that , just calls you and say, hey buddy
your crankshaft is wrecked, (dont let them touch your engine)

btw l, read the fsm.
and all words for the UNSAID actions you are taking.
here is one , just to scare you.
Reprogram the crankshaft position (CKP) pattern. Run the engine until the operating temperature reaches 176 degree. With the engine stopped clear the CKP pattern. Turn the ignition switch OFF. Turn the ignition switch ON and wait thirty seconds.
Check PULSAR F/B LEARN in the data list with the HDS. If not complete repeat the procedure. If complete, road test the vehicle on a level surface. Decelerate the engine speed of 5000 rpm to 3000 rpm. If equipped with automatic transaxle use two Drive positions. If equipped with manual transaxle use first gear.
see, may be the stuck bolt is a blessing,

here i will quote the pulley page for the 3.0L
just to show what a pain A/T cars are. (unsaid tranny )

  1. Raise and safely support the vehicle.
  2. Remove the right front wheel.
  3. Remove the splash shield.
  4. Remove the drive belt.
  5. Hold the pulley with the holder handle (A) and holder attachment (B).
  6. Remove the bolt with a heavy duty 19 mm socket (C) and breaker bar, then remove the crankshaft pulley.
7- clean the crankshaft pulleys (A), crankshaft (B), bolt (C), and washer (D). Lubricate with new engine oil as shown.
Install the crankshaft pulley, and tighten the bolt, as follows. Do not use an impact wrench.
  • Hold the pulley with the holder handle (A) and holder attachment (B), then tighten the bolt to 47 ft. lbs. (64 Nm) with a torque wrench and 19 mm socket (C)
  • Mark (D) the bolt head and crankshaft pulley as shown, then tighten the bolt an additional 60 ? (The mark on the bolt head should line up with the mark on the crankshaft pulley)

  1. Install the drive belt.
  2. Install the splash shield.
  3. Install the right front wheel.

note carefully this bolt is not set to a final torque,
it uses base plus angle.
id use a new bolt. (im savvy and hate buying new crank shafts)

Feb 12, 2014 | 2004 Honda Accord

1 Answer

1996 Saturn SL 1. Does the crankshaft pulley bolt requeire sealer?

According to a book, I don't know, but my rule of thumb is to put red loctite (Loctite 277) on all bolts for flywheel or anything ataching to the crank that I don't want comming off. Then again I work on diesel applications so my rule of thumb for auto could be off base. One thing though, when using loctite you take the dry torque spec of the bolt and multiply by 75% or 0.75 and that is your new torque spec. also anything touching a crankshaft or camshaft i would sugest using new bolt and or nuts.

Jul 24, 2011 | 1996 Saturn SW

1 Answer

Crankshaft pulley keeps coming loose

was the threads clean and dry of oil? thread locker needs to be a lone presence of oil, ...there technically is even a primer for thread lock.....bolt may be a torque to yeild bolt which means replace it every time its loosened...... both sets of threads must be dry and clean ,
and use a torque wrench to assure its correct torque

Jan 22, 2010 | 2006 Ford Laser

1 Answer

The crankshaft sprocket bolt of my 2004 Chevy Optra loosened. What is the required torque tightness of this bolt? Would you recommend that I apply any grease on the bolt threads & washers before...

Hello dickiesantia: My name is Roger and I will help you. The correct torque for the crankshaft bolt is 89 As far as lubricant for the threads use none. You can use thread lock on the bolt. Since it has come loose I would defiantly use thread lock. Should you need any further help please just ask. Please rate the quality of this answer as this way we know you received the correct answer. Thank You for using Fix Ya. Roger

Jul 01, 2009 | 2005 Chevrolet Aveo

2 Answers

Crankshaft pulley

Tighten to spec (very tight...) and with the right tools. Or just get a new one. Something could be faulty with the one you have.

Jul 31, 2008 | 2000 Honda Prelude

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