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Post by hudtm60 on Dec 31, 2017 20:06:22 GMT 1
I'm going to attempt to create a threat showing the dismantle process of the bike to give it a good clean and inspection as well as, hopefully, the splitting to the engine so I can go in and check the condition of the crankshaft and replace the oil seals. It remains to be seen what I'll do when I actually lay eyes on the crankshaft as I've no idea how to determine whether it's good or not but I guess I'll learn about it along the way. Here's the before pic.....yes.....why I would ever even show a 10mm spanner at this beautiful work of art without even trying to start it....well.....it's only skin deep.  |
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Post by Deleted on Dec 31, 2017 20:25:15 GMT 1
Sure it will be even better when put back together. Let us know how it goes.
Have you just bought the bike, or left it in the shed?
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Post by veg on Dec 31, 2017 20:40:33 GMT 1
This was the bargain state side i believe that everyone was lusting after. Yes you're right to rebuild it, all the seals will be fubar'd. Enjoy
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Post by midlifecrisisrd on Dec 31, 2017 21:25:01 GMT 1
You need to open it up I'm afraid
Look I g forward to seeing the innards
I've had 2 totally different experiences with ypvs engines.
Both original bore and supposed good
One was perfect and trouble free
The other had a bent con rod from hydraulic lock during a previous owners start attempt
Steve
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Post by bare on Jan 2, 2018 20:59:15 GMT 1
Unfortunately there's small chance to examine the Crank for rusted pins until it's pressed apart.
At which point brand new fresh Bits are easy to fit.
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Post by jon on Jan 2, 2018 22:55:39 GMT 1
Unfortunately there's small chance to examine the Crank for rusted pins until it's pressed apart. At which point brand new fresh Bits are easy to fit. Bare is right. You won’t be able to tell yourself if the crank is no good (especially by your outward questioning). You really need to have it split, and assessed by someone who knows. If left in one place over time with no oil, the needle rollers can rust into the pins/conrods. It’s almost like a type of calvanic corrosion although the materials are not that dissimilar to do this? You can have a guess by gentle lifting the rod and letting it fall slowly under your finger and feeling for completely even pressure. If you feel the slightest change in force it’s knackered. This is no substitute for splitting it and visually checking. Jon |
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