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Hello fellow MZ Riders,
I am in the process of resurrecting a TS250/1 that has been dormant for 14 years. Went through all the usual processes and it fired up no problem. The bike however has excessive white smoke from exhaust. I will take it out for a run but assuming the worst and the crank seals have gone, i have two questions
Question 1. Is it possible to replace the crank seals with the engine in the bike? Looking at the totally inadequate Haynes manual i have, it appears possible to remove the dynamo on the offside and the clutch etc on the nearside to reveal the oil seals retained by circlips.
Question 2. If it is possible, for those who have achieved replacing the seals without removing the engine, do they have any hints/tips learned from experience.
Footnote. The bike starts and revs very well. I have done all the brakes, tyres, electrics etc. and it has historic vehicle status so am hoping to avoid an engine strip as i want to ride it. To confirm whether the crank seals are blown i am hunting around for a suitable child’s balloon to put over the gearbox filler/vent to try to ascertain whether the crank is pressurising the gearbox via the seals.
Any helpful advice gratefully received
Regards
Robert
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yes its pretty easy,take the clutch and rotor off,i use a small self tapper screwed gently into the old seal then pull out with pliers.
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Hi Robert,
i replaced the seals on my super5 with the engine in the frame a couple of months ago, and have replaced the clutch and dynamo a few times before.
There are a few things to look out for before you start, which may prevent the bike being listed on ebay as spares or repair sometime later.
if you are still needing info you can give me a call on 07813 636428 after 7pm or weekends
kind regards
Mark -
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