Wed Apr 27, 2022 4:00 pm

Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
 
Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
Wed Apr 27, 2022 4:00 pm linkquote
On the first ride of the year on my Vespa P200e I noticed oil dripping from my gearbox. So I opened up the filler port and a whole lot of oil shot out and it was very runny and smelled like gas. I drained it and there is a lot of tiny metal flakes that are not magnetic.
So from what I have been reading on this forum is that the clutch side seal is toast.
I think it's possible that I left the fuel tap open over the winter and the float needle failed and the gas got through the clutch side seal.
Is there any other way fuel can get into the gear box? Is my motor toast
So where do I go from here? Any thoughts before I crack it open?
Wed Apr 27, 2022 4:03 pm

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
Wed Apr 27, 2022 4:03 pm linkquote
Your motor is definitely not toast, but the clutch side seal 99% likely needs to be replaced.

And you should probably look at your clutch since you have to take it off to replace that seal anyway. it'll need a new bushing and washer, possibly new plates as long as you're doing.

That's a rough intro to working on vintage motors, but splitting (and closing) the cases on a P isn't hard compared to older models.
Wed Apr 27, 2022 4:12 pm

Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
 
Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
Wed Apr 27, 2022 4:12 pm linkquote
Thanks chandlerman for the quick reply. That's exactly what I was thinking.
Good to have some experienced advice. Is there any other way fuel can leak into the gear box?
Wed Apr 27, 2022 4:15 pm

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
Wed Apr 27, 2022 4:15 pm linkquote
There is one other way, a minor design defect in some cases, called an "oil sucker," but it'll still involve splitting the cases to replace the case gasket, so either way, it's pretty much the same task, especially since you need to pull your clutch to sort that out in any case.
Wed Apr 27, 2022 4:30 pm

Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
 
Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
Wed Apr 27, 2022 4:30 pm linkquote
OK, I guess I've got some work to do.
I'll be posting my results when I get her back and running for anyone else.
Wed Apr 27, 2022 7:13 pm

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
Wed Apr 27, 2022 7:13 pm linkquote
You'll need to get a clutch castle nut tool and flywheel puller in addition to gaskets, seals (do both fly and clutch side while you have the cases apart), and maybe a cruciform depending on how long it's been since the cases were opened up.

Ideally, also a torque wrench.

Splitting the cases on a vintage Vespa is not hard as mechanical work goes, but can be a little overwhelming if you've never done it before.

I don't know of any folks from this forum in Vancouver, but there's a decent sized Seattle contingent who'd probably be more than happy to help out if you didn't mind hauling the motor across the border.
Wed Apr 27, 2022 8:44 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11332
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11332
Location: The state of insanity, SoCal
Wed Apr 27, 2022 8:44 pm linkquote
CM is on the money.

dollar to a dime that your clutch side is toast. and if you're going to do it, then plan on soft parts- clutch and fly side seals, gaskets all around, all the clutch brass and some plates, a cross and kick start gear, spring and buffers.

throw in a carb rebuild kit while you've got the cart open. a new needle and float will do ya good.

there's soft non metallic parts in the clutch, so I wouldn't worry too much about the amount of junk. but if I were in your boat, I'd pull the clutch off first to make sure I didn't need to order anything else!
Thu Apr 28, 2022 7:50 am

Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
 
Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
Thu Apr 28, 2022 7:50 am linkquote
greasy125 wrote:
CM is on the money.

dollar to a dime that your clutch side is toast. and if you're going to do it, then plan on soft parts- clutch and fly side seals, gaskets all around, all the clutch brass and some plates, a cross and kick start gear, spring and buffers.

throw in a carb rebuild kit while you've got the cart open. a new needle and float will do ya good.

there's soft non metallic parts in the clutch, so I wouldn't worry too much about the amount of junk. but if I were in your boat, I'd pull the clutch off first to make sure I didn't need to order anything else!
Thanks for the advice
This will be my first time opening it up so I'm kind of curious what's going on
Thu Apr 28, 2022 8:08 am

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 5993
Location: San Diego, CA
 
Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 5993
Location: San Diego, CA
Thu Apr 28, 2022 8:08 am linkquote
I'd pull it all apart before making that parts order. There will be some other jackassery going on that requires you to make a 2nd parts order if you go all on faith and "I should only need this" and order ahead. The one exception - if you actually need to order the tools to get it apart, then go ahead and make your best guess but don't be surprised if you need a 2nd parts order.
Thu Apr 28, 2022 8:59 am

Hooked
1964 Piaggio Allstate Cruisaire
Joined: 15 Aug 2021
Posts: 431
Location: York, PA
 
Hooked
1964 Piaggio Allstate Cruisaire
Joined: 15 Aug 2021
Posts: 431
Location: York, PA
Thu Apr 28, 2022 8:59 am linkquote
I just rebuilt my VNB recently. A little older version, but similar. Lots of good tips and lists.

VNB5 rebuild project
⬆️    About 1 month elapsed between posts    ⬇️
Wed Jun 08, 2022 9:00 pm

Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
 
Member
Vespa P200E
Joined: 12 Jun 2020
Posts: 13
Location: Vancouver
Wed Jun 08, 2022 9:00 pm linkquote
All Done, Got er back together and it feels like a new scooter and no more fuel in the oil.
Thanks guys
Thu Jun 09, 2022 7:08 am

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 5996
Location: Nashville
Thu Jun 09, 2022 7:08 am linkquote
Glad to hear you're back on the road!
Thu Jun 09, 2022 7:15 am

Moderibbit
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: 12 Jun 2008
Posts: 8848
Location: Atlanta, GA
 
Moderibbit
1980 P200E - "Old Rusty", 1976 ET3 Primavera
Joined: 12 Jun 2008
Posts: 8848
Location: Atlanta, GA
Thu Jun 09, 2022 7:15 am linkquote
ride on, friend
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