Skip the auto shop - Our mechanics make house calls

Q: Bolt hole stripped for timing belt.

asked by on

While replacing a timing belt, the thread for the hole containing the bolt for the idler pulley was accidentally stripped. What can I have done to fix this and how much will it cost to fix it?

Hello, with the threaded hole for the bolt holding the idler pulley stripped out you are left with two choices. The first being to install a heli coil into the old bolt area. To install a heli coil you first buy the heli coil kit and have to enlarge the hole using a drill, tap out the new drilled hole, install the heli coil with the supplied glue and then wait for it to dry. Heli coils work fairly well if you take your time and are steady with the drill. The second option is to replace the part that it screws into which could be expensive if it’s the engine block.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Engine rebuilt and fitted, but car won't start

There could be several issues - double checking the basics such as valve timing is a must. Also, the induction system needs to be looked at especially to see if the car has fuel and spark. Too little or too...

Q: My car is shaking from the passenger side when idle in D mode and the ac turns on

A more likely explanation is the engine is not "quickly" responding to the increased load placed on it when the a/c turns on, although apparently the idle does smooth out after a short delay. If the motor mounts were a...

Q: Car wont start

Have the vehicle scanned and see if there is any engine codes. If you have codes then have them diagnosed first in order to more easily pinpoint the problem. If you are getting cam or crank sensor codes, then look...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...