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Post by brucek on Mar 21, 2018 13:56:16 GMT 10
Two questions Bruce - 1) How did it go? 2) Does the ID allow for the O'ring or does the felt sit on top? Just realised the OD on the wheel side drive flange is OD 52mm so the felt should sit outside it? 1) Yes it works well. Keeps the rear hub and tyre much cleaner. 2) Correct, the 52mm ID runs on the outside of the drive flange. You could go a bit smaller on the ID if you like because the felt will easily push out of the way. Another couple of things; When I last had the FD out and in pieces I was able to more accurately measure the groove diameter in the housing and found it was 68mm - not my original 72mm (I've edited the original post to correct this) and again when I had everything in pieces I found with the O-ring conversion I did that the drive flange was about 2mm short of contacting the O-ring so I made a 2mm shim to space out the drive flange. This ensures full width of spline engagement as well. (See 'Final Drive Splines' from 12 Jan 2018).
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andyh
2015 Tourist
Posts: 953
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Post by andyh on Mar 25, 2018 13:44:02 GMT 10
Will the felt stop this? This was taken after today's 340 km run, FD needed about 10ml to top up. The breather is clean so I am guessing this is coming from the FD output spline shaft seal and through the oil drain hole that runs from outside the seal to the bottom of the casing. Is this normal or do I have bigger problems like the seals being shot?
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Post by Uralee on Mar 25, 2018 14:57:34 GMT 10
The breather hole is tiny.....put a fitting in with a 4-5mm hole and run a hose up the frame. Stopped my seal from leaking. You can replace the drive spline seal without dismantling the FD.......if you have mechanical competency, 😄
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Mar 25, 2018 17:23:19 GMT 10
Will the felt stop this? This was taken after today's 340 km run, FD needed about 10ml to top up. The breather is clean so I am guessing this is coming from the FD output spline shaft seal and through the oil drain hole that runs from outside the seal to the bottom of the casing. Is this normal or do I have bigger problems like the seals being shot? Pressure mate! Pressure! Increase the f/d breathing and the jobs right! Attachments:
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Post by brucek on Mar 25, 2018 19:08:24 GMT 10
Will the felt stop this? This was taken after today's 340 km run, FD needed about 10ml to top up. The breather is clean so I am guessing this is coming from the FD output spline shaft seal and through the oil drain hole that runs from outside the seal to the bottom of the casing. Is this normal or do I have bigger problems like the seals being shot? I was getting grease flicking all over the wheel and tyre (only while there was grease in there to be flicked out of course) and found the wiper seal I made was pretty good at preventing it. Oil from the breather was something else again and mostly confined to making a mess of the F/D housing - not the wheel. Is all that muck on the tyre gear oil or grease? If it's oil then your hub seal is likely R/S.
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andyh
2015 Tourist
Posts: 953
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Post by andyh on Mar 25, 2018 20:52:16 GMT 10
Thanks Wheels and Lee, I will look at modifying it. Have spotted Bruces post 12 Jan 18 and will use that as a starting point. As for my mechanical competency, it will have to wait till after Easter as I am on another road trip, will just take the gear oil with me and top up at each fuel stop. Bruce, it is mainly gear oil and I think that is where the majority of it is coming from the seal. The O'ring seems to have stopped the spline grease escaping and splotting / splatting on the rim. Either way if it is leaking it hasn't seized and that is a good thing in my books
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Post by Uralee on Mar 26, 2018 8:07:54 GMT 10
AND........don’t overfill it...👍
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Post by Piper on Mar 26, 2018 18:57:07 GMT 10
Sourced local bits mix n match , pneumatic 8mm elbows and hose, top bits are bunnings water dripper with foam insert for dust prevention . all up less than $8.
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andyh
2015 Tourist
Posts: 953
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Post by andyh on Jun 4, 2018 16:05:45 GMT 10
Just a quick one to say I finally figured out where the oil is weeping from and the news isn't good. Drilled out the existing breather and added another cross outlet in the head as I couldn't find a hose-tail with a 8 x 1.25 thread. Doing this slowed the leak but didn't stop it but it slowed it enough for me to figure out that the oil is coming from the input shaft seal. Not a huge problem but I am annoyed that it wasn't picked up during the "authorised" service as I did mention the leak. Off in search of an 8mm elbow and will leave the drive for a rainy day.
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Post by Uralee on Jun 4, 2018 17:18:56 GMT 10
If you decide to replace the seal your self, be sure you understand the the fitment of the cotter bolt. Do it wrong.....you break the shaft.
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