Phil C Posted September 14, 2021 Report Share Posted September 14, 2021 Afternoon All As part of my ongoing Vitesse restoration I replaced the inner driveshaft seals last year and have not really paid much attention to them since. However, I have just noticed a slight oil drip from each. Inspection would suggest it is coming from behind the retaining plate rather than along the shaft, i.e. perhaps not the new seals? It seems odd there is no gasket for the retaining plate as it is my understanding that it does have to retain oil. Am I missing something here or is it a case of copious use of sealant? Thanks in advance for any help Phil Link to comment Share on other sites More sharing options...
johny Posted September 14, 2021 Report Share Posted September 14, 2021 yes they just rely on the machined metal to metal faces sealing so obviously they must be perfectly clean and undamaged when assembled plus the use of a sealant will help although no benefit in it being copious. First port of call is to check that the allen screws are correctly tight still.... 1 Link to comment Share on other sites More sharing options...
trigolf Posted September 14, 2021 Report Share Posted September 14, 2021 I put a smear of blue hylomar on the faces before bolting up the shafts. I've never understood why Triumph never fitted a gasket, particularly as most Triumph diffs are as oil tight as the Torey Canyon! Gav 1 Link to comment Share on other sites More sharing options...
johny Posted September 14, 2021 Report Share Posted September 14, 2021 To be fair Ive never found thoses faces to be the worst leak points - in my experience its usually front seal or main casing joint.... 1 Link to comment Share on other sites More sharing options...
trigolf Posted September 14, 2021 Report Share Posted September 14, 2021 True, but with these diffs now in excess of 40 yrs old and having been dismantled/ reassembled several times probably. Every little helps as they say... 1 Link to comment Share on other sites More sharing options...
johny Posted September 14, 2021 Report Share Posted September 14, 2021 Its possible over the years that the seal plates have been levered off which can damage the faces or even cause distortion so then leaks are almost guaranteed☹️ 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 14, 2021 Report Share Posted September 14, 2021 i would use something like loctite 574 especially good on machined hard surface faces these need to be firmly fixed and not pant hence no gasket something thick and slippery will fail Pete 1 Link to comment Share on other sites More sharing options...
Phil C Posted September 14, 2021 Author Report Share Posted September 14, 2021 4 hours ago, johny said: its possible over the years that the seal plates have been levered This did cross my mind too. I have checked them visually with a straight edge and they appear ok - but this has limited accuracy. I will re-clean all surfaces and try the 574 and see how we get on. Would like to conclude before the rear tub goes back on as working access is currently at its best!! 😁 Thanks all for your help 👍 Link to comment Share on other sites More sharing options...
johny Posted September 15, 2021 Report Share Posted September 15, 2021 I wonder if its possible to use Engineers blue to check how good the surface contact is? Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 15, 2021 Report Share Posted September 15, 2021 Im a fan of 574 we did lots of testing on production and this stuff was by far the best that was a while ago and my perloined stock of cartriges after production ceased has runout and j had to buy some ..........its pricey but a bullet proof sealer on machined faces Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 15, 2021 Report Share Posted September 15, 2021 21 hours ago, Phil C said: Am I missing something here or is it a case of copious use of sealant? Thanks in advance for any help Phil Just confirm that they're flat, try a level surface against them. I've bent some in the past, in fact considerably, removing the bearing with pullers. 2 Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 15, 2021 Report Share Posted September 15, 2021 Colin do you have some hooligan in your genes (jeans ) Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 15, 2021 Report Share Posted September 15, 2021 No Pete just a huge hammer. Not in my jeans, in the garage. Link to comment Share on other sites More sharing options...
Phil C Posted September 19, 2021 Author Report Share Posted September 19, 2021 On 15/09/2021 at 09:23, Pete Lewis said: ..........its pricey 😱 certainly is! And impossible to find locally. Ebay to the rescue (again) All thoroughly cleaned, 574 applied and re-assembled. Oil replenished and fingers crossed. Colin, compared to yours I think mine are pretty flat 🙄 Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 19, 2021 Report Share Posted September 19, 2021 4 minutes ago, Phil C said: I think mine are pretty flat think Colin was on a BENDER !!! use 574 quite sparingly it sets solid when air is expelled Im sure you will find it works really well and once set might not need the bolts it does GRIP removal can need a good pry its good for sealing threads as well Pete Link to comment Share on other sites More sharing options...
johny Posted September 19, 2021 Report Share Posted September 19, 2021 Of course the other thing is that it wouldnt be very difficult to make up gaskets and I cant see a problem with using them.... Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 19, 2021 Report Share Posted September 19, 2021 5 hours ago, Pete Lewis said: think Colin was on a BENDER !!! A bit hammer. I mean a really big hammer. The bearing just would not shift off the halfshaft, so I protected the splines and battered away. Once I realised that one corner had bent and the seal was beyond reuse I gave it full Laldy and put some manners into it. Link to comment Share on other sites More sharing options...
PeteH Posted September 19, 2021 Report Share Posted September 19, 2021 "If at first you don't succeed"------------------------------------------Get a bigger hammer!.👍 Pete Link to comment Share on other sites More sharing options...
Badwolf Posted September 19, 2021 Report Share Posted September 19, 2021 11 minutes ago, PeteH said: "If at first you don't succeed"------------------------------------------Get a bigger hammer!.👍 Pete Maybe this might do!! 1 1 Link to comment Share on other sites More sharing options...
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