Oil leak.

discussion about the 750 Sport and '89/'90 900SS, which share many mechanicals with the Paso series
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LimitedEdition
Posts: 52
Joined: Sun Jul 01, 2012 9:23 pm
model: 750 Sport
year: 1989
Location: UK

Oil leak.

Post by LimitedEdition »

Hello, yet another problem. Since I've put the ducati into storage (moved to a mates garage not fully put away yet.) it has started to leak oil out of the gearbox. I can't describe what it is so I've taken a picture of it to aid my question. Image

Hopefully its just a seal, what do you guys think? could it be anything worse? Like literally I rode the bike round the corner then left it for a couple weeks.

Cheers, Alex

Well apparently flickr is being a doylum so here's a direct link
http://www.flickr.com/photos/79425406@N ... hotostream
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ducinthebay
paso grand pooh-bah
Posts: 1323
Joined: Sat Sep 03, 2005 12:00 am
model: 750 Sport
year: 1990
Location: SF Bay Area

Re: Oil leak.

Post by ducinthebay »

Picture did not come through.
On occasion, the Ducati seems to build up too much pressure and leak around the oil filter at start up. My ST2 did this, and my ST4s, and my Sport. Checked the filter for being tight and no problems. Can't explain why it happens.

I also once had an oil leak at the swingarm pivot, but that was from bad engineering from the previous owner.

With all oil leaks, wash the engine off well, then try to trace the source of the oil.

Oh, and confirm its oil, and not gas leaking.
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
LimitedEdition
Posts: 52
Joined: Sun Jul 01, 2012 9:23 pm
model: 750 Sport
year: 1989
Location: UK

Re: Oil leak.

Post by LimitedEdition »

This is the link Flickr says to use: http://flic.kr/p/dgLRH4 (pretty new to flickr lol)

Its where the gear shifter joins the transmission, you know the little shaft thing that sticks into it. I know its oil as its all over the floor underneath it haha. It's only a small leak but a leak is a leak and it shouldn't be there.

hopefully the picture works, I really can't describe the part and have no idea what its called

Thanks, Alex
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ducinthebay
paso grand pooh-bah
Posts: 1323
Joined: Sat Sep 03, 2005 12:00 am
model: 750 Sport
year: 1990
Location: SF Bay Area

Re: Oil leak.

Post by ducinthebay »

luckily, the easiest oil seal to fix. Still have to pull the cover off, but better than some others.
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
LimitedEdition
Posts: 52
Joined: Sun Jul 01, 2012 9:23 pm
model: 750 Sport
year: 1989
Location: UK

Re: Oil leak.

Post by LimitedEdition »

Will it be expensive? I'll probably be doing it myself at a friends workshop (he's a mechanic so its just incase I go wrong lol) and what is it called? If they are cheap enough would it be worth changing all of the seals as I imagine its just weathered away with the age and actually getting used after 10 years.

Cheers, Alex
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ducinthebay
paso grand pooh-bah
Posts: 1323
Joined: Sat Sep 03, 2005 12:00 am
model: 750 Sport
year: 1990
Location: SF Bay Area

Re: Oil leak.

Post by ducinthebay »

Shift shaft seal - $10
Case Sealant - $7
Bandaids for the scraped knuckles - $5
The joy of taking apart a running motorcycle, fixing something, and have it run again- Priceless

Have fun, Phil
Last edited by ducinthebay on Sun Oct 07, 2012 3:34 pm, edited 1 time in total.
Duc in the Bay
1990 750 Sport x2-Rosso Blanko (900ss copy) & Nuovo Nudo (Scrambler project)
1991 907 -mostly stock
2002 ST4s - Lots of mods.
LimitedEdition
Posts: 52
Joined: Sun Jul 01, 2012 9:23 pm
model: 750 Sport
year: 1989
Location: UK

Re: Oil leak.

Post by LimitedEdition »

Lol Shift Shaft Seal, bit of a mouthful. I've asked Russ at Ducati Mondo to have a look.

I'll link the page but I'd like to make it clear it's for reference use only, I don't intend it to be spam or anything I'm literally just linking the page.

https://www.ducatimondo.co.uk/store/

Russ is a great guy and he got me a great deal on my new clutch pack!

cheers, Alex
LimitedEdition
Posts: 52
Joined: Sun Jul 01, 2012 9:23 pm
model: 750 Sport
year: 1989
Location: UK

Re: Oil leak.

Post by LimitedEdition »

Just a little update, the leak was the seal at the end of the shift shaft and is currently being replaced. Didn't even have to take the gearbox to pieces lol and there was me expecting the worst
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persempre907
paso grand pooh-bah
Posts: 3312
Joined: Tue Dec 06, 2005 12:00 am
model: 907 I.E.
year: 1992
Location: Roma, Italia

Re: Oil leak.

Post by persempre907 »

ducinthebay wrote: The joy of taking apart a running motorcycle, fixing something, and have it run again- Priceless
:thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup: :thumbup:

I also do the same with the help of a friend who has a little bike's workshop (and corrects me when I go wrong).
Ciao
Francesco
Ducati 907IE 1992 Rosso
Ducati 907IE 1993 Nero
Moto Guzzi Galletto 1960 Sabbia
BMW R Nine t 2019
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