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Today at Atelier Kaz - Private NSX Enthusiast, ex-Honda R&D engineer with F1, Indy/CART background

Seized Drive Shaft Spindle/Spline

Rating: 4 votes, 5.00 average.
This is just an information purpose post on how to press out the seized drive shaft spindle/spline.
I normally use hydraulic hub puller but if it doesn't work, followings are the recommended method.

I tried to find the photo from my archive but couldn't find good ones so followings were gathered from Japanese website a while ago.
I tried to remember from where I got these as I should put referrence to them for copyright reason but unfortunately, I couldn't extract the file info.
Therefore, if the owners of the original photos reaches this post, please contact me so that I can put the reference as a courtesy.





First, I don't recommend the above method.

I know lots of people are using this method but personally, I'm scared of warping the hub plate (this photo is not actually showing the hub plate but in fact, it's the dram brake but you will get the idea on what I'm trying to say).
The craw has such a small contact point and the thickness of hub plate is different depending on where the craw sits so you are applying massive force on uneven thickness plate that it could warp in several dimentions.





The proper method is to distribute the force around the plate as much as possible and I prefer using the bearing separator.
Unfortunately, normally, you only have smaller separator for the gbox services on passenger vehicle that the diameter is not big enough for
the hub plate.
You need commercial vehicle class bearing separator so that it has enough width.



You could try using the bearing separator with extention bar without taking off the hub from the car.
If you have the hand lever style hydraulic ram (rather than the rotational handle style that I use) then you could try apply the press around the bearing separator jig without taking the hub carrier off the car.







If you don't have such thing or if it didn't work while applying the force without taking the hub off the car, then I'm afraid the hub/bearing/outer joint/hub-carrier has to come off the car in one piece and to achieve this, you need to deal with the upper/lower ball joints that I don't want to deal with on someone's NSX even I have the proper tool.
Too risky dealing with it.

Although it's aluminium alloy, you can't press against the hub carrier due to its complicated 3D shape so you must use the hub plate as the base of the bench press.



The shockwave method and heat will also help but I already tried them.....
While applying the force with the bearing separator, apply impact on the jib holding the bearing separator.
The resounance vibration will help separating the seized parts. Widely used by the HGV people but you can't use it on aluminium and hence, you need to bang on the jig supporting the bearing separator.
Without the photo or video, probably not easy to understand but I hope the people dealing with this will understand the above.



Kaz

Updated 20-10-2014 at 08:10 AM by Kaz-kzukNA1 (extra info regarding hub carrier)

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