BritBike Forum logo
BritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorBritBike Sponsor SteadfastCyclesBritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorHepolite PistonsBritBike Sponsor
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
Mister B
Mister B
Kansas, America
Posts: 157
Joined: May 2011
ShoutChat Box
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
a word from..
Manuals on DVD (Shipping included)
Previous Thread
Next Thread
Print Thread
Rate Thread
Oil Everywhere BSA 69 T-bolt
#508069 09/27/13 10:46 am
Joined: Feb 2013
Posts: 21
Britbike forum member
OP Offline
Britbike forum member
Joined: Feb 2013
Posts: 21
got home last night and found a puddle of oil that seemed to have leaked from the alt cover on the primary case and the oil tank is now empty . Help !! is this a wet sump . should I drain all the oil and replace.

Support Your #1 BritBike Forum!

Check out British motorcycles for sale: British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: Oil Everywhere BSA 69 T-bolt
John Simonelli #508094 09/27/13 5:11 pm
Joined: Dec 2002
Posts: 3,273
Likes: 4
Britbike forum member
Online Content
Britbike forum member
Joined: Dec 2002
Posts: 3,273
Likes: 4
John how long did it sit? Oil can get through the left crank seal and fill up the primary.

Re: Oil Everywhere BSA 69 T-bolt
John Simonelli #508124 09/27/13 9:27 pm
Joined: Aug 2002
Posts: 687
Britbike forum member
Offline
Britbike forum member
Joined: Aug 2002
Posts: 687
I had the same thing happen this summer. After sitting for one week,my 68 A65 dumped the entire oil tank into the engine sump. Like a fool, I did not check the tank before taking it out for a ride. After a few miles, there was oil everywhere, and the bike smoked like it was spraying for a bug infestation. We drained the sump and refilled the tank. Took it for a test ride, no problems. Two months have passed and I still haven't found anything that would explain it. Everything is fine now. It seems to have been a one-time thing. It seems that these bikes just like to get your attention every now and then.

Doc


Doc

Mostly Triumphs with a few BSA's a Norton, and two BMW's

Re: Oil Everywhere BSA 69 T-bolt
John Simonelli #508557 10/01/13 10:47 am
Joined: Jun 2002
Posts: 10,045
Britbike forum member
Offline
Britbike forum member
Joined: Jun 2002
Posts: 10,045
Hi John,

Originally Posted by leon bee
Oil can get through the left crank seal and fill up the primary.

Engine oil draining down from the tank and filling up the crankcase was my first thought too but, on a '69, that has different oil in the primary and so should be sealed off from the crankcase, I did wonder if the engine oil should be able to work its way through the drive-side main bearing and seal to fill up the primary? If that's what's happened, BSA didn't intend the alternator cover to be this much of an oil seal, hence the incontinence. grin

Originally Posted by John Simonelli
is this a wet sump

Sounds like it. frown

Originally Posted by John Simonelli
should I drain all the oil

:bigt

Originally Posted by John Simonelli
and replace.

Imho, yes:-

. If you put different oils in tank and primary, they've contaminated each other in the primary. frown

. Even if you put the same oil in tank and primary, confused there's likely to have been bits of odd debris in the bottom of the chaincase. Hardly worth chancing your engine for the cost of a few pints of oil?

Hth.

Regards,

Re: Oil Everywhere BSA 69 T-bolt
John Simonelli #508572 10/01/13 12:09 pm
Joined: Dec 2002
Posts: 3,273
Likes: 4
Britbike forum member
Online Content
Britbike forum member
Joined: Dec 2002
Posts: 3,273
Likes: 4
Stuart, this is a BSA!!

Re: Oil Everywhere BSA 69 T-bolt
leon bee #508612 10/01/13 6:23 pm
Joined: Oct 2008
Posts: 6,326
Likes: 30
Britbike forum member
Online Content
Britbike forum member
Joined: Oct 2008
Posts: 6,326
Likes: 30
Originally Posted by leon bee
Stuart, this is a BSA!!

Which, in '69, is the same as a Triumph. Separate crankcase and primary oil. In either case, if the crank seal leaks wet sumping will fill the primary. Especially when sitting on the side stand.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"
Re: Oil Everywhere BSA 69 T-bolt
John Simonelli #508623 10/01/13 7:53 pm
Joined: Dec 2002
Posts: 3,273
Likes: 4
Britbike forum member
Online Content
Britbike forum member
Joined: Dec 2002
Posts: 3,273
Likes: 4
Yes, I thought Stuart was being inattentive.......but it is I. Think that word "contaminated" is what confused me re Stuart's post. I never think of primary fluid as being contaminated, just always dirty as hell.


Moderated by  Jon W. Whitley 

Link Copied to Clipboard
Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | DVD- Manuals & Parts books
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.7.4