Hey brand new to this forum but not my first time working on cars. I frequent VWVortex since I typically drive my MK2's but I am helping a friend work on his 1992 Honda Accord 4dr EX 5MT. The issues is his crankshaft pully for the alt belt broke... the larger ring seems to be held to the harmonic balancer by a softer material perhaps rubber? Well the rubber is gone and the ring floats now if that makes any sense. We ordered the new pully assembly and are about to start the install. My first question is are there any special tools needed or are basic hand tools sufficient? I noticed that the center of the pully has a large hex head shaped cutout perhaps for a large reverse style socekt to hold the crankshaft so it doesnt rotate when you try to remove the retaining bolt. Are there any reccomened sealents for the thread on the bolt once the old pully is removed such as loctite? Is this a common issue or is it a sign of a underlying problem? Unfortunatly he does not have a maual but if needed we can go get one. Figured I would start here and see where it leads. Thanks for any help and if clarification is required let me know and if more pictures are helpful I will have to use my phone. Here is the diagram of what I will be replacing, part #18 held in by the bolt #19.

 

Those crank bolts can be a major PIA to remove sometimes. You are absoloutley correct about the hex cut out, there is a tool that can be be bought or rented the fits into that spot and holds the crank pully from moving. yes the pulley is a 2 peice unit with rubber sandwiched in between to help absorb harmonic vibrations. There is no need to put any type of thread locker on the crank bolt, just be sure to torque it to specs.

 

Go to amazon.com and search "Powerbuilt 648796". The tool is like $25. I was in a bind when I ordered mine, couldn't find it locally, so I paid extra for next day air. I'd link it but I'm on my iPhone so it only gives me the mobile page.

Best tool ever for working on hondas, especially if you don't have good air tools.

Like dcfiver said, no thread lock or anything is needed. Just torque everything to spec. Your friend needs to have at least a haynes manual for his car. They're cheap, make him buy one. If you guys start feeling adventurous, how many miles are on his timing belt and water pump?