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@dinoscoot58 avatar
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Vespa P200E
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UTC quote
Hello All,

This is my Pitted Crankshaft from a P200E
I have been researching for any info on this and there isn't much.
The motor runs fine but will this affect performance?
Should I replace it?
Any advice?
Thanks

Dino
Pitted Crankshaft from a P200E
Pitted Crankshaft from a P200E
@orwell84 avatar
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I think the only thing it would affect is the rotary valve and it sounds like it hasn't. I doubt that that little pitting even would. If it was a bearing journal on an automotive crankshaft, I wouldn't like it, but it's not serving the same purpose. A machine shop could polish it or you could do it yourself.

Others will chime in who know more than me.
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Weird 80's Vespas & Cool Vintage Lambrettas
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I'd probably run it and figure I'd throw another one at it when or if it went south.

did it already look like that or have you hit it with some scotchbrite already? why is it out? I'm guessing bearings and seals?
OP
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I am replacing the clutch side seal cuz of fuel in the gear oil and whatever else I see.
I think the previous owner cleaned up the rust on it
The engine runs fine except for a little bogging on the high end
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LXV 150 3v ie. Midnight Blue (Sold) Now Honda Zoomer X
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Probably like that since new. Just run it.
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Weird 80's Vespas & Cool Vintage Lambrettas
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DinoScoot58 wrote:
I am replacing the clutch side seal cuz of fuel in the gear oil and whatever else I see.
I think the previous owner cleaned up the rust on it
The engine runs fine except for a little bogging on the high end
honestly, I wouldn't worry about it. how's the rotary look? that will be the tell tale. if it's not totally waxed, which I'd think it wasn't if was running well, I'd just knock it all back together and roll.
@chandlerman avatar
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76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 79 P200E, 66 Lammy S3
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UTC quote
How's the big end bearing? Any grind-i-ness there? That's what I'd be worried about so long as it's running okay.

The bike obviously sat with that section of the crank exposed to moisture for a while because that pitting more-or-less matches the intake opening. That doesn't necessarily mean that the rust made it any further than that, though.
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Vespa P200E
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UTC quote
chandlerman wrote:
How's the big end bearing? Any grind-i-ness there? That's what I'd be worried about so long as it's running okay.

The bike obviously sat with that section of the crank exposed to moisture for a while because that pitting more-or-less matches the intake opening. That doesn't necessarily mean that the rust made it any further than that, though.
Yep, The rust does match the openings
All the bearings are good just the seals are gone. Just waiting for my package from Dave
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1997 Italjet Formula 125, 2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
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"The motor runs fine" ... for sure it's a great time to screw with it & to ensure there is no further chance that it will run fine, again, ever.

But, knowing me, hell yeah! Throw that one in a big box that is awaiting many other standard components to be added to it , then top it up with all the broken performance parts you never imagined you could break... then go out & buy a race crank......
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