Kiwifrog Posted April 10, 2009 Report Share Posted April 10, 2009 Having just failed my Controle technique due to the well lubricated brake shoes I need to replace the diff seals on my TR4. The Haynes manual states that I need tool M86A to remove the hub from the diff housing, Does anyone have a picture of the tool or an idea where I can get one? Could I use a 3 legged internal puller instead ? Or will I have to have the tool or make one? I would dearly love to send the diff to Pete Cox for rebuild but unfortunatley the carrage costs from France would be more than the car is worth Cheers Alan Quote Link to post Share on other sites
Geoff359 Posted April 10, 2009 Report Share Posted April 10, 2009 Having just failed my Controle technique due to the well lubricated brake shoes I need to replace the diff seals on my TR4. The Haynes manual states that I need tool M86A to remove the hub from the diff housing, Does anyone have a picture of the tool or an idea where I can get one? Could I use a 3 legged internal puller instead ? Or will I have to have the tool or make one? I would dearly love to send the diff to Pete Cox for rebuild but unfortunatley the carrage costs from France would be more than the car is worth Cheers Alan Hi Alan, I have a photo of the tool from the Standard Triumph Workshop Manual for the TR4. If you send me your email address, I will email it as I can't get it under the 500K limit (for the forum) and make it legible! It looks to me that a standard hub puller would work just as well. Hope this helps. Geoff Masterman Quote Link to post Share on other sites
Kiwifrog Posted April 10, 2009 Author Report Share Posted April 10, 2009 Hi Alan, I have a photo of the tool from the Standard Triumph Workshop Manual for the TR4. If you send me your email address, I will email it as I can't get it under the 500K limit (for the forum) and make it legible! It looks to me that a standard hub puller would work just as well. Hope this helps. Geoff Masterman Thanks Geoff You have mail Cheers Alan Quote Link to post Share on other sites
John Morrison Posted April 10, 2009 Report Share Posted April 10, 2009 Hi I have one of these as part of The Cumbria Group Stock of Triumph Special tools, if you need any help photo's diamensions etc. let me know. john. Quote Link to post Share on other sites
Kiwifrog Posted April 11, 2009 Author Report Share Posted April 11, 2009 Hi John Looking at the photo that Geoff sent me it looks like a 3 or 4 legged puller would do the job. The other option is to make one up out of some old scrap and a small aubergine (if you do not remember the TV show goodness gracious me that will not make any sense) Cheers Alan Quote Link to post Share on other sites
Rhodri Posted April 11, 2009 Report Share Posted April 11, 2009 Alan, you say "to remove the hub from the diff housing". The hub along with its bearing and the halfshaft, on a TR4, will just fall out if you remove the six bolts at the end of the axle tube. You can then hook out the oil seal in the end of the axle tube. However, I assume that you are trying to remove the hub from the halfshaft, to replace the oil seal, and bearing whilst you are at it. This requires tremendous pressure, I believe anything up to 150 tons with a hydraulic press , and there is a risk of damaging the hub whilst doing the job. So, whilst the proper tool obviously does the job, I don't think an ordinary 3 legged puller would look at it. Indeed, the only TR specialist that I could get to do the job, was TR Enterprises. The finished job looks good, but I haven't finished the car yet to try it out. Rod Quote Link to post Share on other sites
Don Elliott Posted April 11, 2009 Report Share Posted April 11, 2009 Alan - I assume that you have a live rear axle in your TR4 and not IRS. I have never done it, but I have heard it said that all you have to do is remove the rear cover from the differential and remove something simple inside, then you can slide out the half-shaft to replace the seal. This way you don't need a puller and all the trouble this involves. Quote Link to post Share on other sites
ianhoward Posted April 11, 2009 Report Share Posted April 11, 2009 If it is splitting the hub from the half shaft (as all ready mentioned above), I took mine to a local engineering shop who did it for a few 'beer tokens' - as stated, a good deal of force was required! Brgds Quote Link to post Share on other sites
Kiwifrog Posted April 12, 2009 Author Report Share Posted April 12, 2009 (edited) Alan, you say "to remove the hub from the diff housing". The hub along with its bearing and the halfshaft, on a TR4, will just fall out if you remove the six bolts at the end of the axle tube. You can then hook out the oil seal in the end of the axle tube. Rod I am just at the stage of reading the Haynes manual which says that you need to split the hub to do the job, I guess this is if I want to change the bearings as well. I am beginning to think that I could just replace the seals without the special tools then get the diff rebuilt correctly over next winter Alan - I assume that you have a live rear axle in your TR4 and not IRS. I have never done it, but I have heard it said that all you have to do is remove the rear cover from the differential and remove something simple inside, then you can slide out the half-shaft to replace the seal. This way you don't need a puller and all the trouble this involves. Don That is exactly the problem the oil seal. Would be interested to know more on the simple replacement method Cheers Alan Edited April 12, 2009 by Kiwifrog Quote Link to post Share on other sites
Rhodri Posted April 12, 2009 Report Share Posted April 12, 2009 (edited) No Alan- the hub HAS to be split to replace the hub oil seal, this seal prevents the grease from coming out onto the rear brakes. The bearing is also then visible, so , having done the splitting with the special tool, or big press, you may as well replace the bearing, to save splitting the hub again. However, there is another seal in the outboard end of each axle tube, these are to prevent oil from the diff, slopping up the axle tube, and dribbling out of the end. By removing the hub with its halfshaft- undo the six bolts around the end of the axle tube and gently draw out the hub and halfshaft out of the tube, by hand,- you can then hook out this oil seal and replace it easily. It would appear, from what I have read and been told, that the main culprit, is the hub seal- the difficult one- and the others do not fail too often, but for the sake of a few pounds you may as well replace them also. The hub seals had gone on my axle covering the shoes etc with grease. The final seal, as you have got this far, is the pinion oil seal. If that is leaking, it is fairly easy to replace, as long as you accurately mark the position of the nut on the pinion shaft, and using a torque wrench, have an idea how tight it is before you undo the nut. Once the nut and flange is off you can winkle out the oil seal, probably it will be tight and a bit of a fiddle, and replace it. Tighten the nut, finally, to the marks that you have previously made- no more nor less, or you may then need tools to set up the pinion bearing preload . Don't overtighten then back off. Rod Edited April 12, 2009 by Rhodri Quote Link to post Share on other sites
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