Quick Release Fuel Lines
 

Hi guys

I am sure this may have come up before so sorry in advance.

Can anyone tell me the best and cheapest way to fit quick release connectors to the tank on my 748. Currently it has the standard banjo style fittings and is a right old pain trying to balance the tank in one hand without scratching it up while screwing the pipes on!

thanks

Chris

They should be quick release as standard.

QR connection goes straight into the pump under the tank.

Older and E models don't have quick release lines, as you now know.

you should be able to purchase the quick release parts from your Ducati dealer, but I think you'll need a different pump for the tank as the quick release is integrated into there.

How about fitting your own quick release connections into the current lines? Demon-Tweeks sell them for £20 for a single sided connector (which is all you need) and buying two of these is cheaper than a new pump and fittings.

Your right guys. This is an E model which for some reason did not come with the quick release.

Do you think it would be ok to fit them in mid line? Just worried about leaks! I'm not one for getting blown up whilst riding!

The aim is to make it easy for removal as I am aiming to rebuild this particular bike as a GP style track bike.

Cheers for the help!

As long as you fit them to the hose correctly you'll not have any leak problems. Splice the hose neatly then use fuel line clamps or Jubilee clips to fit the connectors.

You'd need to mark them up in such a way that you always connect them back up correctly though.

antony,

How old does a 748 need to be before you don't get QR's? Must have only been the '95 run.

Chris,
These are the sort of things you want

http://www.pro-streetcycles.com/acat..._Coupling.html

http://www.wunderlich.co.uk/shop/ero... 57CcountryGB

This is Ducati we're talking about - there are no rules!

Its a bit like the Dzus fasteners on the fairing - some early bikes came without the d-rings while some did. The race sp/sps ones certainly should have, while the bipostos shouldn't. The later E models shouldn't have, but the S and R bikes did.

However, you'll find that some dealers ended up with bikes that had them when they shouldn't because Ducati ran out on a friday afternoon, so they just grabbed a handful from the d-ring tray instead to get the bike finished.

It's a bit like the forks and shocks - some got Ohlins over Showas for whatever reason.

Ducati have various periods of cost cutting and it must be that the fuel pump lines was another exercise in this. I know that the S and R model bikes definitely should have them, but that it's probably hit'n'miss if you get them on an E model. Remember that they switch from biposto/sp/sps to E/S/R in 2000.

and I have a '97 bip with them :)

Which is where the assumption that all the range had them, since mine started out as the base spec.

Weird! Mine is a '00 E & i'm without!

Ducati confuse the hell out of me!

Thanks for all your help with this one guys!

E for economy version, save a few quid by leaving out QR connectors adjustable headstock, big bottom yokes and what ever else

I don't think that the Bipostos had adjustable steering heads either...

Different engine as well in the E

Heads are totally different to the rest of the 748's, but the same as on the 600 monster & SS (IIRC)

[Edited on 10-8-2005 by Mr_S]

Adjustable on the '97 bip in my garage ;)

Interesting since the 748 is a watercooled 4 valve and the 600 monster and SS series are 2 valve and air cooled??

John

Talking steering heads here mate,do keep up.;)

Not really, I was actually referring to the cylinder heads.

I do believe I got the models wrong, but the 748E does have a stepped head for the front cylinder. Whereas other 748's do not, and this means they're not interchangeable.

This was so that they could use a common engine for other bikes (stepped head is required to provide clearance for the front wheel)

[Edited on 10-8-2005 by Mr_S]

The stepped head is actually for clearance for the frame / suspension rocker mount by the exhaust side of the vertical cylinder head on the ST's frame....
The exhaust cam is 5mm lower.
The 748E uses the same head castings ( although different valve sizes ) as the ST4,4S, Monster S4 and S4R.

Do you know how long I've just spent getting that info, and you'd posted it over an hour ago.....

Doh!

:)

btw,

Chris, if you're unsure about fitting the QR couplings, there's bound to be one of us nearby who'd help out. Just let us know where you are.

The OE Ducati fittings are scary money.........£40+ a pair I think. The ones in the above links should work fine. Just try and check they are ok for the pressure that fuel injection uses.

I've not seen an E using QR fittings. I think they are the only ones to do with out??
My '98 BP has adjustable head angle. Again, I think the E is the only one to lose out.
The stepped heads are, indeed as RJ points out, originally for the ST and M's. They went on the E to spread out the production costs I guess. They also use different cam belts.

Don't let the DD boys think they'll fit their 600's :sing:

Can you still convert the 748 E engine to be an 853??

Will the kit fit with this different head?

As we have establisged the E does not have an adjustable head angle what else do I need to llok at changing to make this a suitable road / track bike?

Yes, the different head just means you can't swap the heads for another bike, say 748RS or 996


Since the head angle is the last thing you should look to change, all the other geometry is the place to look.

Excellent piece on head angle by our very own Shazaam!

http://217.199.188.40/xmb/viewthread...=9910#pid81029

The 853 should still go on. I've used St4 head gaskets so the coolant and oil galleries must line up OK.
If that's the case then head off the Rs etc. should also be interchangeable. Would need checking to be 100%.
The adjustbale head angle isn't the be all and end all IMO. I've tried the sharp angle on mine and couldn't get on with it. Increased rear ride height works for me.............

I'd go along with that, currently run the 916 and 998 on the raked out road setting and the 996 is also setup like that but with differnt yokes with a greater offset giving less trail to quicken the steering, not worried about the slight loss of stability from that mod as the longer swingarm tends to help out there.
Looking forward to trying my adjustable offset yokes in the 998 once I get the bottom one machined out for the Ohlins forks.

If you want to use the heads off an R or S on an E, there's a few offset plates, pulleys etc that need to be replaced / altered to make them fit. The oil & waterways should line up, it's all the other stuff that's not right.

Doesn't the E use different (shorter) belts as well, since the exhaust cam is slightly lower?

the belts on the the E are the ones of the ST's and are longer. The exhaust cam was lowered 20mm, which moved the pulley centres out.
You could use the E pulleys so as to avoid having to use spacers etc.
The R and RS use the wider belts for homoglation, I think. It's not that big an issue on the road as the 996SPS uses the same belts as the the 748 916 etc. with very similar valve lifts etc.

Well my bike's an E, but apparently has a 'bip' engine, not an E one.
So you never know quite what you're getting from Ducati!


As for the fuel line connectors, someone suggested an alternative here:

http://www.ducatisportingclub.com/xm....php?tid=19024

Yep, that was my suggestion, spinoli went and bought some too.

But, cl0nd0n doesn't have the QR fittings in the first place :(