Trying to replace my inner cv boot (gonna do outer as well). Read all the posts and surprisingly the inner connector on the axle wasn't as hard as they said. My issue is I can't get the darn axle out of the hub. Here's what I've tried. Pb blaster, small sledge hammer, big sledge hammer, jaws, slide hammer and heat with all of them. Won't budge. I can't find any nuts or bolts on back of hub that would keep it in place. I'm stuck - ideas.
On my 348 there is a cv at the gearbox and one at the inner hub flange. They both unbolted and the axle shaft with cv joints pulls out. are you trying to do the cv joints or the axle stub bearings in the hub? https://www.ferrarichat.com/forum/threads/cv-joint-service-thread.649437/
put a 3 prong puller on it. the hole in the middle of the shaft is an orientation hole to hold the tip of a puller from slipping off. The apply good pressure. Those splined shafts don't need much pressure. Make sure that suspension in droop is not pinching the axle shaft locking it in place. remove the inner end of axle shaft so it is free and unable to absorb the pressure from pulller. If it will not budge then you are never going to get heat in the right place to expand contract for movement. Put the puller on and put good pressure but do not break tool. Use wd40 or pb blaster at the spline shaft and then heat the shaft to draw oil into the splines to loosen corrosion. This will cause flames so keep a water spray bottle handy. Rinse and repeat trying to draw the wd40 into the splines. That should loosen it up so you can drive the shaft.
Just trying to replace the CV boots. To do that I need to get the axle out of the car. I tried the 3 prong and heat. It simply will not budge. So I took the while hub out with the axle. Standing it up and soaking it with pb blaster. Will try adding heat to it in this position. Image Unavailable, Please Login
Ahh so the later ones were like the 355 then ok makes sense. Maybe this helps. https://www.ferrarichat.com/forum/threads/repacking-348-rear-wheel-bearings.247323/
Interesting. I do see 4 bolts on the back of the hub to get me to the wheel bearing. The problem is I can't get the axle shaft to move. Every other axle I've done has been like others have said.. either a light finger push or maybe a light hammer.
Amazing you can't get that off. I have never seen one frozen on any car I could not get off with hammer or puller. I guess rust??? The article above Ian even pushes the shaft with hands to move shaft to get access to the hub nuts. I'm heating and drawing pb in there rinse and repeat. Then in that nice position I'm putting a sacrifice hut on the end of the shaft to protect it supporting the assembly in a fixture and wack it hard with the BFH.
I spent 2 days and wrecked a couple screw-type 3-jaw pullers trying to do this same job on a BMW (12 year old car, daily driver in the northeast, splines didn't look rusted but there must have been some corrosion). You guys that have only had to tap it out with a rubber mallet don't know what you're missing. Anyway, picked one of these up and it did the trick. https://www.harborfreight.com/10-ton-3-jaw-hydraulic-gear-puller-64982.html
Jaguar (for their X308 models at least) specifies use of Loctite 270 (red) on the shaft splines and the thread. Perhaps someone put red loctite on the splines?
no loctite in there, just simple corrosion. I had to buy that huge puller for an E30 M3 axle, and I needed a 1/2 impact driver to work the big screw. I have used it on a couple of other jobs since then and every time I needed it, that puller delivered. Buy a bigger puller.
Had to really put the beans to it on one side of my 456 with all of the above suggestions and an increasingly large puller. Found a small amount of corrosion on a few splines... it was surprisingly small that was causing the bind. Cleaned, sanded and smoothed what i could and a smear of grease on the reassembly
Not my 348, but had a nightmare job on my Ford doing this. Broke several pullers, and it laughed at my torch. I ended up building a tool to push the hub out, similar to what Yelcab posted. I don't have a picture, but it essentially was a big screw and nut I put behind the hub, then torqued it down to push against the part of the assembly. Pushing vs pulling. I had to engage, disengage and rotate the tool at different angled so it wouldn't bind, but it did work. It was something like this:
If you cannot find a puller make one. I would make from 1/4" Plate like a box with 3 sides. Drill hole in middle side weld like 22mm 12.9 nut. Use bolt to drive that shaft out using impactgun. Hub has holes so use those to stabilize the rig
Praise the baby jeebus! Ordered a 10T hydraulic puller but they sent me a 5T.. so I figured why not. Thank goodness I paid a little bit of attention in physics class (thanks Mr. Whitt) and remembered leverage. I got maybe 1.5 pumps and was stuck. Grabbed my jack bar and put it on and put my back into it. A push and a reset of the pump and another push.. BANG! I thought I broke something. It ended up giving me 1 more BANG! And then it pretty much just fell out. Thanks to you guys for suggestions. Ended up not having to use any heat on it. I did hang it for a couple days and used PB Blaster on it. Now to break it down, clean it up and get it back in the car. Long live the 348 Brotherhood! David Image Unavailable, Please Login Image Unavailable, Please Login
Curious if anyone has run into an issue with the replacement boot kit. Ordered from Ricambi PN 70006021 The outer boot is about a 1/4 inch too short to fit on the hub. The OG boot on the axle had PN 153 15 75 00 003. The one in the kit from RA had PN 153 8 75 00 002. See photos... the 2 boots are the new installed and the old. The single boot photo is the new one and part number. Which i also can't find on the Internet. Any ideas on this one? Image Unavailable, Please Login Image Unavailable, Please Login
LOLOLOLOLOL. Yah.. I usually wear my black Italian loafers when I'm working on the car but my feet were cold.
Better than I expected - the rust wasn't the whole way through the splines. I'll grab a photo of the splines when I pick it up. I took it to a buddy who owns a local shop to do all the really filthy work.
Pics as promised. Little bit of rust on the engine side of the hub. Cleaning that up before it goes in. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
