My 94 v12 has connecting hoses (cross over?) at the front and rear of the fuel rails. Can someone tell me if these are replaceable. If so, where can I get them and how are they installed? I'm not familiar with the connectors. I have searched the usual parts providers for info.

Thanks...Jimmy

 

Looks like it should be the same procedure as replacing hose on the earlier type fuel rails: cut old hose off, press new hose on. I'm betting it 5/16" fuel injection hose as one the older models.

The 'ferrules' or 'termination sleeves' are readily available from Jag vendors.

Fuel Rail and Injectors-6.0 Litre - Parts For XJS from (V)179737 to (V)226645 | Jaguar Heritage Parts UK

Cheers
DD

 

Thanks Doug...are the ferrules some sort of press fit? How do they attach to the rail? The web site you referenced has them "no longer available". I'll check with the other vendors.
....Jimmy

 

The ferrules are a loose fit over the end of the hose. It's the hose that is a press fit onto the barbed nipples of the fuel rail. It takes a good hard shove to push the hose fully home

Cheers
DD

 

So I have to cut and dig the old hose out and just reuse the ferrules? Sorry if these are dumb questions...just want to get it straight before I mess things up.
Thanks...Jimmy

 

In my experience there's no easy way to cut off the old hoses without destroying the ferrules. But, with enough time/care/patience, it's probably doable

Cheers
DD

 

Ok...I'll start trying to find a supplier that has the ferrules.
Thanks for your help...Jimmy

 

JayCee,

One word of caution, if those parts of the fuel rail need replacement, you may need to consider that other hoses on the rail are on the verge of failure (if you haven't already). The heat in the 'valley' is very tough on the OEM hoses, and the first failure on my fuel rail was one of the hoses going down from the rail to an injector. The hoses looked fine and the failure took me by surprise, but shouldn't have given the age of the car and the heat issues involved.

If all of your fuel rail hoses are original, that's 22 years, and you might consider a complete refurbishment of all the hoses. SD Faircloth does a complete refurb as well as ultrasonic injector cleaning, or several people have gone DIY.

Jaguar Fuel Injector Service

Just food for thought.

 

Jaguar Genuine Part Number EBC8269 | Hose-Fuel

One US supplier that's listing injector rail coupling hose

Mac Allen: fuel rail on 6.0L models only has the two connection hoses, the injectors connect direct to rail, they don't have hoses to each injector as do the earlier 5.3L V12



Ferrules
http://www.jaguarpartsinternational....-p/ebc3074.htm

 

The later fuel rail doesn't have hoses to each injector....just the two hoses joining the left and right rails.

But replacing any and all underhood fuel hoses would be a good idea if they're all original


cheers
DD

 

Thanks for the correction! Obviously a much needed design improvement.

 

If it's like my 92. get an Exacto knife and carefully split the hose off the barbed fittings. It may also take a pick and other small tools. Take your time and try not to damage the barbs. I believe the "ferrule" is just there to prevent the hose from expanding and pushing off the barbs. Reuse them. Cut the new high pressure fuel injection hose to length and shove all the way it on. Thats all there is to it. The difficult part is cutting the old hose off without damaging the barbs.

 

Amazon has the ferrules

 

So...I changed out the hoses and as everything with the Jag, it wasn't easy! 4 hours removing the old hoses and almost 2 hours putting on the new ones. I managed to save the ferrules without much damage. I don't see why clamps wouldn't work. Lots of other cars use them for fuel lines. If these last as long as the first ones, I won't be around to worry about changing them again. Sometimes there is an advantage to being old! I attached pics of removing (butchering) and of new hoses installed

Cheers ...Jimmy

 

I redid all the fuel hoses on my '91 years ago and reused the ferrules. There is no need for claps as the hoses push on are tight and never leaked for years afterwards.

 

Clamps, particularly the worm drive variety should not be used in place of the ferrules or you risk cutting into the inner surface of the hose. I have used box cutters that are not as sharp as those barbs.
The early years of the set up did use clamps in places but they used less barbs on the stub with an area barb free for that purpose.