Flywheel removal and install need help

[Jason kin]

Broken magnet on my flywheel 89 mercury 150 hp have new one. Can i use harmonic balance puller to remove old and is a tool needed to install new one?

 

[CharlieB]

Re: Flywheel removal and install need help

If you have a three piece flywheel bolted together you can simply unbolt the outer section from the hub. Otherwise you need the correct screw-in puller with the inner jacking bolt. Cast flywheels are too brittle to risk using any type of 'jaw' puller and are not drilled for any 2 or 3 wing bolted pullers.

NEVER HIT OR PRY on a cast flywheel, unseen stress cracks can cause a flywheel to grenade at high RPM.

The correct tool is available at many other sources on the web. It is well worth it.

Here is one

Mercury Mariner Yamaha Force Outboard 1 1 2" 16 Flywheel Puller 91 849154T1 | eBay

Edit: If you have the bolted hub be SURE to mark the inner and outer so you can index it they same on reassembly otherwise all timing marks will be incorrect.

 

[oldman570]

Re: Flywheel removal and install need help

The flywheel puller that Charlie gave is a very worth while item for the price. A call to the manufacture will also get you the lifting ring that fits the puller. With it you can safely lift the motor off the boat easy and save trouble latter. JMO
Oldman570

 

[GA_Boater]

Re: Flywheel removal and install need help

Or just get this kit from the same seller. Mercury Mariner Flywheel Puller 91 849154T1 Lift Ring 91 90455 1 Lifting EYE | eBay Only 5 bucks more and 2 bucks(???) cheaper shipping so net $3 more - NO brainer in my opinion.