Skip the auto shop - Our mechanics make house calls

Q: How do the rod bearings stay in place?

asked by on

Ok so i got a knock recently and i opened up the oil pan took off the balance shafts and noticed quite a bit of looseness. I took off the caps and noticed the bearings are thin. I bought all new bearings i plan to replace the bearings put thicker oil and assembly lube take it and sell it immediately after i patch this issue. My question is on this cars bearing i see no indentations that hold them in place. How do the bearings stay in place and not move? Thanx.

My car has 120000 miles.
My car has a manual transmission.

A: All the engine main and rod bearings along ...

All the engine main and rod bearings along with the balance shaft bearings will have a small index on one end of the bearing. You should see a slot for the new bearing to line up and go in only one direction. The old bearing may have spun and could have knocked off this notch on the bearing. If this is the case then the bearing surface is most likely damaged and may need additional repair parts. If you run into any issues, consider YourMechanic, as one of our mobile technicians can come to your location to service your vehicle. Best of luck.

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: Screeching/squealing sound from R Rear

Hi there: In some instances, this type of noise is an indication of a dragging emergency brake, that causes the rear brake pads to slightly apply to the rear rotor. The noise might also be an indicator of bad or...

Q: Thermostat malfunction code read

The Code that was set might have been P0126. The engine cooling thermostat maintains optimal engine temperature. Inasmuch as the PCM can measure actual temperature from other sensor inputs (such as the coolant temperature sensor), the functioning of the thermostat...

Q: Dtc light flashes and car judders

From what you've described you'll need to have the codes retrieved from the computer and have them diagnosed. This sounds like you are getting misfires and should start with checking the ignition. Also, check the spark plugs for signs of...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...