thread oil line adapters ?

discussions specific to the 750 Paso

Moderators: paso750, jcslocum

Post Reply
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

thread oil line adapters ?

Post by paso750 »

Hi there,

does someone know the thread size of the oil line adapters ?
The engine side must be M14x1.5 but what`s the thread towards the oil line ? On the Supersport/Monster etc. it`s 9/16” -18 UNF but that`s a lot smaller than the one of the Paso adapters.

G.

PS: pls. let me know if you have one of these adapters or an oil cooler laying around. If so you could measure the outer and inner diameter of the thread and the thread distance.
Attachments
067049360.jpg
067049360.jpg (8.01 KiB) Viewed 11586 times
muxey
Posts: 46
Joined: Sat Jan 21, 2012 9:33 am
model: 750 Paso
year: 1988
Location: south rideing england

Re: thread oil line adapters ?

Post by muxey »

The oil cooler fitting is 22mm od, 13.5 id, 1.5 metric pitch.
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

my bad. I just noticed that the connections of the oil hose to the engine and to the oil coolers are not the same.
Thanks a lot for measuring muxey.
Guess I`ll have to visit a hydraulics shop this week maybe they can help out.
I have an oil thermostat from a Monster/SS and am wondering if it can be adapted to the Paso.

G.
Attachments
Ölthermostat.jpg
Ölthermostat.jpg (80.07 KiB) Viewed 11536 times
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

continuing with my monologue ;)
Had the adapters ordered today.
According to the hydraulics shop the connection of the original Paso oil lines towards the engine (adapter) is 1/2" BSP and towards the oil coolers 15L M22x1.5.
The original adapter between engine and oil hose is M14x1.5 to 1/2" BSP.

(BSP = British Standard Pipe, alias Withworth thread while NPT = american National Pipe Thread)
User avatar
higgy
paso grand pooh-bah
Posts: 3327
Joined: Tue Jul 29, 2008 9:50 pm
model: 907 I.E.
year: 1992
Location: Hilltown,Pennsylvania
Contact:

Re: thread oil line adapters ?

Post by higgy »

Good Job G
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

Cut one old oil hose into bits as I was curious about the size and type of the adapter pieces.
I was told (by the hydraulic shop) that the end pieces would have to be removed which I did but they are not crimped on as they assumed. They are just a protection and safety for the hose and should not be removed. (hence if someone has a spare oil hose, preferably an old defect one let me know ;)
The oil hoses have 3 layers so hairline cracks in the blue cover don`t mean much.
The hoses are only pushed on.
The hose nipples are 9,5mm (from one oil cooler to the other) and 12,8mm (from the engine to right oil cooler).
Hence fitting push on hoses would be 3/8" (9,65mm = D-06) and 1/2" (12,7mm = D-08).
(note that hoses that are not for push on installation might be also classified as size D-06, D-08 etc but may vary in inner diameter. I.e. Steel braided hoses like the ones on that SS above won`t work. Not only because of the different inner diameter but also because the don`t expand. Btw to install push on hoses don`t oil them. Put them in warm - not boiling - water for a while to soften)

G.

http://www.speedflowshop.co.uk/push-on- ... 2468-p.asp
Attachments
DSCF8200.JPG
DSCF8200.JPG (185.7 KiB) Viewed 11461 times
DSCF9815.JPG
DSCF9815.JPG (35.73 KiB) Viewed 11461 times
DSCF9820.JPG
DSCF9820.JPG (35.87 KiB) Viewed 11461 times
DSCF9821.JPG
DSCF9821.JPG (34.92 KiB) Viewed 11461 times
DSCF9822.JPG
DSCF9822.JPG (36.63 KiB) Viewed 11461 times
DSCF9823.JPG
DSCF9823.JPG (39.21 KiB) Viewed 11461 times
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

obviously there were also oil hoses with crimped end pieces
Attachments
$_57 3.jpg
$_57 3.jpg (82.2 KiB) Viewed 11407 times
User avatar
higgy
paso grand pooh-bah
Posts: 3327
Joined: Tue Jul 29, 2008 9:50 pm
model: 907 I.E.
year: 1992
Location: Hilltown,Pennsylvania
Contact:

Re: thread oil line adapters ?

Post by higgy »

they are all of the same basic design G, banding is stronger than crimped but involves a more expensive process to get the band on and barbed and banded is strongest of these types of multi-piece hose ends


and oil is a universal solvent so in the end they all leak
Ducati,making mechanics out of riders since 1946
There's no problem so bad that a little fixing can't make it worse! : )
If it ain't broke keep fixin it till it is
88 750
90 906
92 907ie
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

ok so the correct term is banding not crimping. Still, all three sets of oil hoses I have are neither nor. They are just push-on. There are no pressure marks on the end sleeves and one can rotate them by hand. Also if they were press fitted they would be longer like the ones on the last pic I posted.
User avatar
paso750
paso grand pooh-bah
Posts: 5558
Joined: Sun Jul 18, 2004 12:00 am
model: 750 Paso
year: 1987
Location: southern Germany

Re: thread oil line adapters ?

Post by paso750 »

those original blue oilhoses are from AEROQUIP and can still be found w/o problems.
The larger one is the FC 332-08 and the smaller one the FC 332-06
Attachments
oil hoses.jpg
oil hoses.jpg (67.24 KiB) Viewed 11343 times
1245.jpg
1245.jpg (19.71 KiB) Viewed 11343 times
User avatar
Frank.61
Posts: 264
Joined: Fri Jul 24, 2015 11:21 am
model: 750 Paso
year: 1989
Location: Belgium

Re: thread oil line adapters ?

Post by Frank.61 »

Hi,

The original Aeroquip hoses are also available in black (for Europe: Demon Tweeks in the UK supplies them through Europe for a very fair price).
I ordered me new ones in black, only need to smarten up the original couplings, but have no idea how to dismantle those (partially aluminium/steel) if at all possible.
Bimota SB4-S - 1984
Ducati Paso 750 - 1989
Suzuki SV1000S - 2008
Ducati Monster 796 abs - 2010
User avatar
Frank.61
Posts: 264
Joined: Fri Jul 24, 2015 11:21 am
model: 750 Paso
year: 1989
Location: Belgium

Re: thread oil line adapters ?

Post by Frank.61 »

"I ordered me new ones in black, only need to smarten up the original couplings, but have no idea how to dismantle those (partially aluminium/steel) if at all possible."


Anyone? :roll:

Want to smarten up the original couplings but have no idea how to remove the steel nuts, they seem to be fastened with aid of a small pin .....
Would like to paint the alu parts and galvanize the steel ones but for that I have to separate them first.

No one ever tried? :choo:

Frank
Bimota SB4-S - 1984
Ducati Paso 750 - 1989
Suzuki SV1000S - 2008
Ducati Monster 796 abs - 2010
Post Reply