Q: Replace crank seal and harmonic balancer

asked by on October 22, 2016

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.

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Battery draining and charging - 2007 Jaguar XK

Yes, it is safe to attach a battery charger to the trunk power lugs. Just make sure nothing metallic can touch both lugs at once to avoid a short, and possible fire. You might consider attaching a "trickle-charger" to the...

Car won't start.

The problem will need to be checked to see if you are loosing ignition or fuel to your engine, since the most common problems are the fuel pump, engine module and distributor going bad on these engines.

My car won't start but it's not the alternator or battery

The problem sounds like a loose connection in the fuse box to battery cable connections. Check the cables for loose or corroded connections at battery clamps and ground connections on body and engine. If problem continues then have a mechanic...

Related articles

The Best Used Cars to Buy for Families
If If it’s time for you to search for the top used cars specifically for families, check out the list we’ve put together of the top five. The list of must-haves Typical items that families are looking for in their...
A Buyer’s Guide to the 2012 Ford Expedition
The The 2012 Ford Expedition has ample room for passengers and cargo, while still being able to tow anywhere from 8,900 to 9,200 pounds. The Expedition has two-tone exterior packages making it stand out against its competitors. Along with that,...
Is it Safe to Drive with a Leaking Axle Seal?
An An axle seal is the part of the vehicle that connects the axle to the rear differential, or the transmission. The purpose of the axle seal is to keep transmission fluid from leaking. Depending on the size of the...