Q: Stuck bolt preventing access to timing belt

asked by on

I need your advice on how to break a bolt loose. I have been working on my car and I need to replace the timing belt. To get to that belt, I will have to remove the harmonic balancer, which is held by a bolt. That bolt is totally stuck and I can not get it loose. I’ve gone through three ratchets trying to get it off. (Don’t want to have to buy more ratchets.) I even used a Bolt-Breaker spray, but that didn’t help either. How do I get this extremely-stuck bolt loose?

Hello. The crankshaft pulley/harmonic damper bolt on virtually all engines is often tightened to 200-400 ft lbs of torque. On the Honda, the specification is a mild 14 ft lb, but FOLLOWED by 90 degrees of additional twist. Bottom line - that bolt is really on there - use a 1/2" or 3/4" breaker bar with the appropriate crankshaft locking pin in place to hold the crank still. It may also require a piece of pipe to extend the breaker bar. A ratchet isn’t going to do it. If you need help with a timing belt replacement, a certified technician from YourMechanic can come to your car’s location to perform this service.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Stuck bolt preventing access to timing belt

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car stopped accelerating while driving and turned off.. lights and everything else would work but car wouldn't turn on 2002 Acura MDX

Hi there - there are 2 failures in particular that are likely candidates at your mileage level - a failed timing belt, and a fuel pump malfunction. If you don't hear the fuel pump run for a few seconds when...

Q: I have a power steering issue after doing a donut. The pump no longer assists at idle, only when the rpms are up. No leaks and fl

Hello, thank you for writing in. The power steering pump has likely failed. The pump gets its power from the drive belt, if it is tight, the power steering pump should be supplying plenty of hydraulic pressure at idle speeds....

Q: Idle 3000 rpm minimum!!!!!

Hi there. In most cases, a high idle issue is caused by a vacuum leak or a stuck throttle or idle control valve. The vacuum leak typically occurs after service, when a vacuum line will be removed and not replaced...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...