Joint Covers on driveshafts:IRS

norman m. macleod · Post by **norman m. macleod** » Thu Jun 11, 2015 10:01 am

Hi all,
There are 2 x joint covers,(each side) which protect the outer journal assemblies, on the drive shafts. These are 2 x Part No. C23616, cup-shaped, pop-riveted together, and a worm clip which clamped it to the drive shaft. These are shown in the exploded diagram in the Jaguar Spare Parts catalogue, but, curiously, are omitted in the (same) exploded diagram in the S1/S2/3.8/4.2 Jaguar Workshop Manual that I have.... :o ....and no mention of them in the text, anywhere....
My question is.....can someone advise me how far along the drive shaft(s), towards the hub carrier, these are supposed to be fitted....? To just cover the outer yoke, or until it actually contacts the outer yoke, or what....? Yes, I know, I should've marked the position before disassembly, but didn't..........

Any comments/advice appreciated....!!
Best regards,
Norman.

Gfhug · Post by **Gfhug** » Thu Jun 11, 2015 6:05 pm

Norman, on mine they were as far out as practical to cover the outboard UJ, sorry don't have photo to hand, but if I can see a useful one will post another day. Watch for the hole being correctly position to get to the UJ grease nipple, that might help with locating how far out they go.

Hope this helps
Geoff

christopher storey · Post by **christopher storey** » Thu Jun 11, 2015 6:34 pm

Norman : the best, if slightly controversial , advice I can give is "throw the b*g*ers away" . This is what Jaguar eventually did, hence the lack of mention of them in the later parts lists. They can be put to the outboard end for normal use, with the hole in them positioned so that removing the bung gives access to the grease nipple , but watch for them rubbing on the hub carrier which creates a noise which will send you to the funny farm

norman m. macleod · Post by **norman m. macleod** » Thu Jun 11, 2015 8:49 pm

Thanks Geoff and Christopher,
Now I'm really confused....What holes....? Which bungs....? Aren't any. Ominously, and in addition, there were no grease nipples in the outer UJ's...Mmmmm..Interestingly, the grease nipple holes were blocked off with 1/4'x28 TPI grub screws.
Further, it was patently obvious that this was the first time that the unit had been stripped down, and the reason that the outer UJ's were completely knackered. I fitted new grease nipples on the rebuild, but access would have been a bit of a trial... :( :( ....!!
I think I'll take Christopher's advice and throw them away..........!
Best regards,
Norman

abowie · Post by **abowie** » Thu Jun 11, 2015 9:04 pm

christopher storey wrote:Norman : the best, if slightly controversial , advice I can give is "throw the b*g*ers away" .

What he said. They really are of no use.

norman m. macleod · Post by **norman m. macleod** » Fri Jun 12, 2015 11:36 am

Hi Andrew,
Thanks for that confirmation....I've just removed them and they'll stay that way....! Curious thing is, though, the two halves were identical, plain, no hole as described by the others, and, of course, no grease nipples, just the grub screws....
Perhaps Jaguar's first attempt at a sealed-for-life unit...?

Best regards,
Norman.

Gfhug · Post by **Gfhug** » Fri Jun 12, 2015 3:57 pm

Norman, I seem to remember reading somewhere that they did change to sealed for life UJs for later S1s, then the S2 shows back to grease nipples.

I'm at the stage of putting my IRS back together and may just leave them off too. Kind of glad you asked the question

JagWaugh · Post by **JagWaugh** » Fri Jun 12, 2015 6:23 pm

Andrew,
It's not like they have no function at all...

1) they delay the spread of grease from the U/J by about 1 week.
2) They scrap on the hub carriers to warn you that you didn't tighten the clamps enough.
3) They make greasing the U/J a bit more difficult.

At least 3 functions... !

Andrew

norman m. macleod · Post by **norman m. macleod** » Fri Jun 12, 2015 6:41 pm

Hi Geoff,
Now that's interesting, my comment on sealed-for-life was made in levity, but as my vehicle is one of the last of the Series 1's, may have hit on the truth, unwittingly......
All is not lost, however, as, contemplating the seemingly useless halves of the "cover", I see great potential in mig-welding them together, copper-plated, with a suitably crafted wooden bung in the bottom, (oak?),
thus creating a mediaeval wine chalice of generous capacity. Then, the addition of a brake fluid low level alarm with an external red LED would avoid the contents reaching dangerously low levels......
With a capacity of about half a bottle of good West Australian sauvignon blanc, it would lend a new dimension to the spousal request for "just one more, dear......" :D :D :D
Best regards,
Norman.

JagWaugh · Post by **JagWaugh** » Fri Jun 12, 2015 7:06 pm

Norman,
Cut the end off a reservac... now there's a "Just one more" vessel!

Andrew

Gfhug · Post by **Gfhug** » Fri Jun 12, 2015 8:55 pm

Norman, that's wonderful, please ship a few bottles, no make it crates, of that lovely wine, some red as well as white would do very nicely.
Life just isn't fair, you have a lovely car, excellent weather for driving around in an E Type, especially an OTS, and excellent wine. Honestly, all you need is decent beer and life would be perfect

ATB
Geoff

abowie · Post by **abowie** » Fri Jun 12, 2015 9:52 pm

JagWaugh wrote:Andrew,
It's not like they have no function at all...

1) they delay the spread of grease from the U/J by about 1 week.
2) They scrap on the hub carriers to warn you that you didn't tighten the clamps enough.
3) They make greasing the U/J a bit more difficult.

At least 3 functions... !

Andrew

You forgot (4) they rattle.

JagWaugh · Post by **JagWaugh** » Sat Jun 13, 2015 5:39 am

5) they make the halfshafts go out of balance. (not that they are really in balance without them).

SteveG · Post by **SteveG** » Sat Jun 13, 2015 4:57 pm

Glad I read this as just about to start restoration of the IRS. I shall bin them!

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