Wednesday, February 13, 2019

IRS disassembly, one step at a time

Hi Everyone,

Today was a short day but got started on disassembly of the IRS (Independent Rear Suspension) on Jennifer's Jag.  The IRS on jaguar was revolutionary for the time, all wheel independent suspension was relatively rare when Jaguar introduced the E Type in 1961 and with inboard disc brakes-unheard of!  It was an interesting system that they used having every thing contained in a cage but probably facilitated quick changes on brakes and differentials on the race track?
At any rate this one hasn't been touched in fifty years except for the shocks I installed last year on it so it's pristine.  What a treat it has been to be the first one to really work on this car-Thanks Jennifer!


The effort to remove the hub on this side consisted of removing the split pin and nut, once those were off the hub just dropped off!  Unheard of and the passenger side backed that up cause it fought me the whole way!  I think that the one side had 'lock tight' applied to the splines and the other didn't?
Preparing for battle


Churchill tool for removing the hub

Fighting me all the way

Hub finally off, but whats this?  A small little ball of grease nestled down in there, the other side had the same thing-weird! 


The other 'ball' of grease, how does that happen?  The other thing of interest, look at how much grease has squished up through the vent hole, makes me wonder if any grease gets to the bearings or if it all goes up and out of this hole when you put the grease gun on the zerk on the other side from it.  I am considering plugging this hole-any thoughts?

Once the hubs were out of the way I could tackle removing the control arms.  one was easy but the other was a PITA, could get the nut off, no sweat but the bolt was stuck, and I do mean stuck.  I finally decided that the nut could be sacrificed so I used metal plates behind it and unscrewed the nut using it to push the head of the bolt out, boy was I pleased when I examined the bolt and the threads were fine.  The nut not so much.... 

Just a grimmy piece

The mess, struggling with that dang bolt!

Where I'm at this afternoon, tomorrow will continue the adventure.

Well that's today exciting adventure, stay tuned for further Jaguar misadventures.
Cheers,
Lynn

4 hrs


2 comments:

  1. Ah, that's the greasy mess I remember. Good job getting that hub off. The Churchill tool would not work for me. I had to take the hub and half-shaft to CJ where Ray fixed me up.

    I know the IRS is not only going to be greatly improved in function by all the cleaning and refurbishing, but it's going to look great as well. It's a pity it has to hide under the car.

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  2. Hi Drew,
    Don't quite know what I would have done had the Churchill tool not worked, probably tried the press but I'll bet that wouldn't generate the force of the Churchill tool.
    Yes, it's a mess isn't it? I sure hope that it will work better when I'm done and hopefully fewer leaks.
    Cheers,
    Lynn

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