yorkshire_spam Posted September 11, 2014 Share Posted September 11, 2014 Rebuilding Spitfire rear driveshaft..... couple of quick questions about U/Js:1) Can they be used with the grease nipple in place? They look like they might foul the yokes?2) [rhetorical] Is it supposed to shear off when you screw it in? :-/Cheers, Sam Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted September 11, 2014 Share Posted September 11, 2014 6797 wrote:Rebuilding Spitfire rear driveshaft..... couple of quick questions about U/Js:1) Can they be used with the grease nipple in place? They look like they might foul the yokes?2) [rhetorical] Is it supposed to shear off when you screw it in? :-/Cheers, SamI've heard that you need to remove the grease nipples of them...But i've never used them, only ever did 1 propshaft on a MG (a good test for mine :P )Don't think it supposed to shear off :-/ Quote Link to comment Share on other sites More sharing options...
nang Posted September 12, 2014 Share Posted September 12, 2014 Think you've got the u/j the wrong way round. Have the grease nipple on the other side.Tony. Quote Link to comment Share on other sites More sharing options...
CHRIS211083 Posted September 12, 2014 Share Posted September 12, 2014 You should be able to leave them in when they are the correct way round and they certainly arn't suppose to shear!!!.Chris. Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 12, 2014 Author Share Posted September 12, 2014 Which way around should they be? Grease nipple biased toward the drive flange/diff/inner end OR toward the driveshaft/hub/outer end?Old one doesn't have a grease nipple fitted.... nor a blanking screw - so no help there!It's not even as though I was over-tightening it. :-/ Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 12, 2014 Author Share Posted September 12, 2014 Mine looks like this, but instead of a blanking plug there's the sheared off end of a grease nipple: Quote Link to comment Share on other sites More sharing options...
CHRIS211083 Posted September 12, 2014 Share Posted September 12, 2014 There are some that are designed so you can leave the nipple on. they are a small type and the nipple is missed when the joint moves through full motion. The ones that need removed are the longer type and you need to buy a plug. Did you pump it full of grease before it sheared???? If so then no point replacing it till it starts to knock. If you didn't grease it the you will need to remove it as ut wont last long without being pumped up with grease, in my opinion. Chris. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted September 12, 2014 Share Posted September 12, 2014 The standard and the nippled are generally supplied the same ....both with sufficient grease for runningIn all the years of driving the Spit and previous, I have never fitted nippled versionsSo if you fitted the one shown ,even without using the grease gun ,you will be OK as there is sufficient grease inWhen you dismantle a UJ ,you will see that the tolerances are so fine that you cannot get much grease in anyway.They are assembled with a high melting point grease which also assists in runningThe only problems I have incurred are when the yoke and flange begin to wear and the cups spin around in their location holes which eventually begin to `chatter` and then you have to replace yoke/shaft.Then I buy BRT ,British Made UJ`s which are very trustworthy Quote Link to comment Share on other sites More sharing options...
don cook1 Posted September 12, 2014 Share Posted September 12, 2014 I took out the long nipples and put back a cut down screw with a cut across the top for a screwdriver. Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 12, 2014 Author Share Posted September 12, 2014 Anyone know the thread that's used for the nipple? I'm thinking a hex grub screw or something? Quote Link to comment Share on other sites More sharing options...
garyf Posted September 12, 2014 Share Posted September 12, 2014 1/4 UNF.I replaced the Grease nipples on the Driveshaft & Propshaft with short Slotted Stainless Screws, made them out of some short Stainless UNF Bolts I had left over from the Rebuild.The worst job is getting them back in when I've re-greased the UJ's, its an horrid fiddly job :( Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 12, 2014 Author Share Posted September 12, 2014 Woohoo 1/4 unf grub screws are about 10p each at the "local" nut and bolt place. That's that sorted!I'll extract the broken grease nipple, put another one in (gently) - apply grease - remove and add a grub screw. :)Just slightly peeved that I couldn't get the job completed last night. Quote Link to comment Share on other sites More sharing options...
CHRIS211083 Posted September 13, 2014 Share Posted September 13, 2014 Yes i know that feeling, it happens more often than not on these little cars but fingers crossed you wont need to do it again for a wee while!! Chris. Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 13, 2014 Author Share Posted September 13, 2014 Ended up drilling the remains of the grease nipple out and running a tap down the how.Has anyone EVER managed to extract anything with stud extractors? I've never managed to get them to work? Always end up either MIGing something onto the remains or drilling out.Useless bleeding objects. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted September 13, 2014 Share Posted September 13, 2014 6797 wrote:Ended up drilling the remains of the grease nipple out and running a tap down the how.Has anyone EVER managed to extract anything with stud extractors? I've never managed to get them to work? Always end up either MIGing something onto the remains or drilling out.Useless bleeding objects.The only thing wrong with stud extractors is......if the stud/bolt etc breaks off inside a threaded hole ,below the surface, and you drill the relevant hole and start the `reverse` process, the stud extractor being tapered starts to push the stuck stud onto the threaded surfaces. The tapered extractor actually pushes the wall of the drilled hole outwards and tightens on to the threaded hole. The harder you tighten the extractor the harder it grips on the wall.They have some good uses(if the drilled hole does not make the stud wall thin) Quote Link to comment Share on other sites More sharing options...
Paudman Posted September 14, 2014 Share Posted September 14, 2014 michael_charlton wrote:The standard and the nippled are generally supplied the same ....both with sufficient grease for runningThe factory grease is only there to keep the needle rollers in place; at least on the greasable version - they require proper greasing before use. Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted September 14, 2014 Share Posted September 14, 2014 490 wrote:The factory grease is only there to keep the needle rollers in place; at least on the greasable version - they require proper greasing before use......but on installation, you cannot get any more grease in that is already inYou can pump fresh in after some considerable time, but in each case the cross member is full up to the counter-bored exit and in the caps Quote Link to comment Share on other sites More sharing options...
CHRIS211083 Posted September 14, 2014 Share Posted September 14, 2014 Maybe you need a new grease gun or a bigger pair of arms as mine always take some. I actually fill mine till it passes the seals and you get a couple of squirts before they pop. Best to pump em full anyway of top quality grease.Chris. Quote Link to comment Share on other sites More sharing options...
heraldcoupe Posted September 15, 2014 Share Posted September 15, 2014 2402 wrote:I actually fill mine till it passes the seals and you get a couple of squirts before they pop. Best to pump em full anyway of top quality grease.This is why I'll only ever use greasable UJs. Adequately packing the non-greasable type is always difficult, at least the greasable types start life well packed even if they are subsequently neglected,Cheers,Bill. Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted September 16, 2014 Share Posted September 16, 2014 Sorry if i hijack the thread.But today i've looked at my prop uj for play and noticed it was a greasable UJ, but there is a plug in instead of a nipple.So where can i find one ? :)Or Sam, can you let me know what size they are and how long + a picture how it should look like :o . maybe i can find a nipple somewhere then ;) Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 17, 2014 Author Share Posted September 17, 2014 Hey Wim - threads are 1/4 UNF... and look like this: Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted September 17, 2014 Share Posted September 17, 2014 6797 wrote:Hey Wim - threads are 1/4 UNF... and look like this: Ok, thanks ! Don't think i'm going to find a long one like that :-/But i'm pretty sure a short one will work also. Will have a look at the blanking plug first ;) Quote Link to comment Share on other sites More sharing options...
CHRIS211083 Posted September 17, 2014 Share Posted September 17, 2014 Wim, Just buy a new u/j for spares to have on the shelf for when they do go. That way you will have the grease nipple and back up.Chris. Quote Link to comment Share on other sites More sharing options...
WIMPUS Posted September 17, 2014 Share Posted September 17, 2014 2402 wrote:Wim, Just buy a new u/j for spares to have on the shelf for when they do go. That way you will have the grease nipple and back up.Chris.I've already have normal UJ's in the shed !Ordered some extra when i did the prop of my friend his MG (better to it on that car first to learn it :P ) Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted September 17, 2014 Author Share Posted September 17, 2014 http://www.amazon.co.uk/Long-Grease-Nipple-Size-Engineers/dp/B0051ODGYC ?:-) Quote Link to comment Share on other sites More sharing options...
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