Curiosity about the tool kit hub puller

Tom Wilson · Post by **Tom Wilson** » Sat Feb 03, 2007 9:11 pm

67GTC and I started the process of replacing one of the wheel bearings on his GTC today. The job required a number of creative uses of tools, among them the grinding down of a modern hub puller to fit in the slim spaces provided by Ferrari.

This got us to wondering about the hub puller that came with the tool kit; an item that neither of us have or have ever seen. It appears to be barrel shaped with a "bolt" going through the center , so we theorize that it screws onto the hub, using the threads provided for the knockoffs. Once attached, you would use the "bolt" to push on the nut in the center of the hub, thus pulling it off. However, as the knockoff threads are reversed on one side, you would need two of these things, correct? Having one is hard enough to imagine, so two seems downright impossible. Where did we go wrong here?

Post by **tyang** » Sat Feb 03, 2007 10:17 pm

Once your remove the cotter pin, castle nut, AND THE WASHER (ask me how I know), attach the hub puller to the threads of hub, and start turning the threaded rod against the threaded axle shaft. The hub will start coming out with the pressure from the threaded rod.

Tom

Tom Wilson · Post by **Tom Wilson** » Sat Feb 03, 2007 10:37 pm

Tom Y - So how do you know??????? (you told me to ask!)

Tom S - Is this thing better than a modern day hub puller (ground down)? or is it just for shows?

Post by **tyang** » Sat Feb 03, 2007 11:00 pm

Tom Y - So how do you know??????? (you told me to ask!)

One of the first things I had to do with my car when I got it 8 years ago was to remove the front hubs. I removed the castlated nut but didn't see the thick washer behind it, and installed the hub puller. It wasn't until the washer started to ride up on the threaded rod, that I realized my mistake. I was surprised Francois was so understanding when I showed him how I bunged up some of the threads on his hub puller. I'm lucky he didn't just kick me out of his garage back then!

Tom

P.S. the Ferrari style hub puller works great.

zac · Post by **zac** » Sun Feb 04, 2007 12:14 am

Tom W.

the question is what are you grabbing with the modern puller?

if your pulling on the brake rotor mounting flange than you could warp it and cause a problem with brake rotor mounting forever. use the proper puller and if needed a little heat but the main idea in taking something apart is to repair it and to not ruin anything in the process.

Zac

Tom Wilson · Post by **Tom Wilson** » Sun Feb 04, 2007 1:03 am

I think we are ok Zac. We did consider gripping the rotor but not only was the puller too small, but we did worry about warpage.

Instead, we found an edge, just to the right of the bolts in this photo (the shadowed area between the shaft and the bolts) that we could grip on to. Once we reduced the thickness of the "grabbers" on the hub puller, we were able to get a good grip and the hub slid off with little resistance.

Post by **tyang** » Sun Feb 04, 2007 7:57 am

Hi Tom,

Glad you guys got the hub off without damaging anything. I'm sure someone in SoCal will have a Ferrari Hub Puller you can borrow next time. Remember, there are two sizes, and the GTC uses the smaller (32?) one while the GTEs use the larger 42 size hub puller.

Tom

David Booth · Post by **David Booth** » Sun Feb 04, 2007 4:07 pm

Speaking as someone who owns the "Mac Daddy" Snap-On puller set, but has used the original Ferrari hub puller, the Ferrari tool is FAR superior.

Keith Milne · Post by **Keith Milne** » Mon Feb 05, 2007 1:15 pm

I was warned several times about rigging up a puller so I bought the correct one last summer (not cheap either), and used it once on each front hub. It was totally effortless. I'd be happy to lend it to whoever needs it - just shoot me an email.

Keith