Reinstalling the Crankshaft pulley

[Risstanomak]

So I've finished a head swap and have become stuck on reinstalling the crankshaft pulley because no one carries a pulley installer that will slide through the 1/2 inch hole. I'm thinking I'll go to the hardware store, buy a super long threaded bolt and make my own installer with a series of lubed washers or something similar. Any other suggestions? Please.

 

[VelocitàPaola]

So I've finished a head swap and have become stuck on reinstalling the crankshaft pulley because no one carries a pulley installer that will slide through the 1/2 inch hole. I'm thinking I'll go to the hardware store, buy a super long threaded bolt and make my own installer with a series of lubed washers or something similar. Any other suggestions? Please.

Nope... you're on the right track. A lot of people have used a large socket between the pulley and a large nut over a section of 12mm threaded rod. Then they'd tighten the nut with a impact hammer, and voilà, a perfectly installed pulley!

I think that's got to be one of the safest ways to do it. Me... I got a small section of ~2" (I can't remember the exact size) steel pipe with matching threaded end cap for about $5 from Lowe's. It fit just over the snout of the crank, and I just bashed the pulley on there with a hammer. When it got close enough, I finished it off by tightening the crank bolt.

Both methods will work.

 

[bullettdsm]

So I've finished a head swap and have become stuck on reinstalling the crankshaft pulley because no one carries a pulley installer that will slide through the 1/2 inch hole. I'm thinking I'll go to the hardware store, buy a super long threaded bolt and make my own installer with a series of lubed washers or something similar. Any other suggestions? Please.

You jumped right in with the answer to your own question Very good. The only thing I might add is I put the pulley in the oven at 250 for a little less than 10 minutes. Makes it that much easier to put on.

MB

 

[92awddsm]

You jumped right in with the answer to your own question Very good. The only thing I might add is I put the pulley in the oven at 250 for a little less than 10 minutes. Makes it that much easier to put on.

MB

I personally prefer not to use this method because it can damage the harmonic balancer(specifically the rubber isolater ring) and then you are stuck having to replace it.

I just use a threaded rod with a nut and a couple of washeres to pull the pulley on. Chances are, you wont be able to find the threaded rod locally so you will have to make your own. You will need a piece of steel round stock (.480" if you can find it) and a 12mmx1.75 die. Just thread the round stock with the die and you should know what to do from there.

 

[Risstanomak]

Thanks for the affirmation. Heating to expand the pulley sounds good too.

 

[bullettdsm]

I personally prefer not to use this method because it can damage the harmonic balancer(specifically the rubber isolater ring) and then you are stuck having to replace it.

Well, it's been so long since I have actually seen a stock pulley (everyone I do has a UDP), that I "read in" UDP. Crap, now I gotta look this up. My bad.

Oh yeah, Got my bolt from Home depot.

MB

 

[Risstanomak]

Look at me learning. I didnt even notice the harmonic balancer built into the pulley. How about using a heat gun on just the center area? Think the uneven heating would be bad?

 

[Locke]

the heat would spread through the pully likely as fast as you could heat it with a heat gun.. Heat gun ought to be fine. I dont have a problem finding most threadrods and bolts at the hardware store.. If you cannot, try MSC http://www.mscdirect.com/ or grainger http://www.grainger.com. I buy most of my stuff from MSC, but i have one locally.