Skip the auto shop - Our mechanics make house calls

Q: Replace crank seal and harmonic balancer

asked by on

I have seen many diff videos of people replacing there seals and balancers and all of them use different Lube/oil to rub around seal/balancer shaft 1 used sealer on the outside of the seal... What is the recommended lube and where to apply it please :)

My car has 110000 miles.
My car has an automatic transmission.

A: What you must of seen is a mechanic using s...

What you must of seen is a mechanic using sealer on the outside of the seal so it will seal any leaks between the seal and the front cover. This is okay to do. Before the balancer is installed you should use fresh motor oil and rub it on the balancer outside shaft where the seal will ride to help it slide into the seal without damage. You will also see sealer put on the key way of the shaft or inside the balancer key way to seal the shaft key way from oil leaks. Also a small amount of sealer is put on the crankshaft bolt to seal the bolt from oil leaking through the threads.

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・Save up to 30%

Get a quote

What others are asking

Q: Speaking noise in steering wheel

If you are hearing this sort of noise when you are turning the steering wheel and it does not sound the same as the previous power steering noises that you were hearing, the most likely cause is a dried out...

Q: I was told by a Honda Dealer that the axle seals must be replaced in the front. I want to get a second opinion.

The axle seals are pressed into the transaxle case and their purpose is simply to keep the transmission fluid from leaking out of the transmission (and keep dirt and water out of the transmission, too, of course). There is an...

Q: I have a bad harmonic balancer causing the serp to lose tension and Ground Control to Major Tom.

You should match to the original one. I looked up the part and the factory only lists one part number. I can only suggest getting the one that matches the one that came off. If you would like a second...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.