I've been trying to obtain info on the XJS fuel pump from members. I have asked for recommendations on quality fuel pumps and now asking for the average life of a fuel pump in miles traveled. It would be helpful to have this info so as to consider replacing the pump prior to burnout.
Info on pump failures and quality replacements would be appreciated

I think it would be better to change the pump in your own garage, then in a location you don't know

 

Iv got 260,000km on mine, (160k miles) and from what I can tell both I and previous owner have been all over N. America, driven hard. The pumps get whiney so lubrication with Lucas injector lubricant is always helpful to ease the stress on it, the originals were Bosch and there are plenty of **** offbrand variants - good thing though is that this fuel pump is used in dozens of cars so it is quite common.

 

167K miles is phenomenal Your the first response, but I thought 60k would be the norm. Have to wait for other responses to get an average

 

I use a lot of high end fuel additives so maybe some sorcery there, recently after fitting a oil catch and doing a 12hr combined highway run at 85mph I averaged 17mpg, getting close to that lofty 20mpg in the fabled original advertising pamphlets lol. I was pleased the pump wasn't whining audibly afterward.

Point is, at this age and for good measure it IS good to over lubricate the system and keep the pump quicker/cooler.

Speaking of sorcery, we'll see what Grant says - his Jag is over 600000km if I recall.

 

For what it's worth, I had to replace mine at about 60,000 km, and had to replace it just a year later. Using quality brands, too. So I think the answer to your question is the same one as to "How long is a piece of string?"
No fuel additives, as I suspect most of them are snake oil. (Haven't noticed any difference whatsoever from the ones I've tried.)

 

Mine is original and at 103,000 miles at the moment.

 

I am assuming an External Fuel pump, but 1993 may be an Internal.

All my External pumps got noisy at about the 160K kms mark, so I simply swapped them out.

Bosch is my preferred brand, or GOSS, but since most are made "over there" now, its a toss of the coin.

The Internal cars, X300 and R, all went legs up at 170K kms, no answer, or warning, just gave out. PITA to replace.

 

My 1992 is internal, so a 1993 will definitely be internal as well. Definitely something to pay someone else to worry about.

 

Hell yes, wasted beer time doing that sucker.

Both the X300 cars took nearly a day each.

 

I feel that that is the exact reason to do it yourself.
A shoddy shop can really screw things up and NEVER take responsibility.
I did mine prior to becoming a Jaguar mechanic and it took a day.
Now that I know how I can do it in a few hours.
It's also very easy if you have a helper.

 

So far from the responses there is no defined average. We'll see as more replies come in. I would also like the no failure and current mileage.

I don't want to get caught out in a remote location and lose a fuel pump. Being towed to a remote repair facility doesn't give me a warm feeling! I rather do preventative maintenance at a certain mileage and change the pump myself
I've reviewed the tank removal procedure several times and find it is not a hard job, but I don't minimize the labor, The PITA is the draining of the tank and the release of the pipes under the car. Most of the other parts are in the trunk work. I don't like the idea of dealing with gasoline. It means fans, good ventilation, and no electric tools. As I remember one gallon of gas equals two sticks of dynamite. I don't want to confirm that equation working on my car!

 

What year is yours? My pump is located beside the battery (Which muppet thought that was smart?) But its right there and accessible.

If I have to replace it I'll be deleting the swirl tank, and doing a fuel cooling mini radiator, pump with in-line shut off valves and a ultra high efficency filter. I mean if your doing it why not put in a valve they're cheap and prevent clamp damage to hoses etc.

 

[QUOTE=afterburner1;2235925]I've been trying to obtain info on the XJS fuel pump from members. I have asked for recommendations on quality fuel pumps and now asking for the average life of a fuel pump in miles traveled. It would be helpful to have this info so as to consider replacing the pump prior to burnout.
Info on pump failures and quality replacements would be appreciated


It would also be helpful to have mileage on functioning fuel pumps and current mileage

 

I doubt there is definate answer as you are looking for.

Every car/owner/market has its unique issues that reek havoc, or do not, based on nothing but shiit just happens sometimes.

My HE, external pump, replaced at 180K kms, coz it was noisy and I had a spare. That pump then went noisy at 210K kms, never thought about it, just swapped it out. That pump is still in it, and took us on 2 X 25000km trips around Australia without issue. Car is now at 320K kms.

Wifes 1976 S2 XJ12, same pump, has now clocked 650K kms, same pump as it left the factory with.

The Internal pump on my X300 (same as the later XJS Internal) lasted till 160ishK kms, tank out,new Nippon pump, lasted 4 days, (Murphy lives in my shed), so tank out again, and replaced, still there at 265K kms.

The "R" got both pumps replaced, and I sold the car, STUPID.

ANY car with an Internal Fuel Pump must NEVER EVER be allowed below 1/4 tank of fuel. The pump is immersed in fuel for cooling, and the brand of the car/pump has nothing to do with that.

If your car is an unknown to previous treatment, replace the pump, and move on, cars break down, things fail, its why we luv them so, and enjoy our time with them.

Of all the cars I have owned, and they ALL be Jaguar, I have had very few fuel pump failures.

 

It’s more likely time than mileage. The hardest thing on a fuel pump is to pump sludge ( old gasoline that has been sitting for years).
Our cars tend to sit a long time. Years often. Sometimes decades. Between uses.

 

I would be careful, but in order for the gasoline to burn, it must be mixed with more than 1% air and less than 7% air.

I can’t imagine you could ever recreate that proportion in a work area. You would be hard pressed to engineer something that could make that work on the first try.

In any case, it would have been useful to know what year your car is and whether the pump was internal or external to the pump. I have a 96 with an internal pump, and this original pump is still running at about 125k miles.

 

To Vee
I changed the pump on an E-type and was testing it for leaks when I bumped a hot wire and caused a spark. I did have a small leak and that was enough to set the trunk ablaze. As you know the fuel tank is in the trunk. I could not control the blaze and the garage caught fire and it and the car were totaled. USAA settled the claim fairly and the adjuster referred to the car as a "Crispy Critter!"

I have a 1993 XJS 6 CYL internal pump 64000 miles
Looking at some of these responses I think I would go another 40k miles and change the pump at 100k miles Outside the garage!

 

Ah, so that's why you're "afterburner" eh?
Oooh, but totalling an E-Type... Ouch.

 

Not as bad as it sounds. Bought the Crispy Critter from USAA. Sold the rear end, motor, hood and wheels. With the settlement and the sales I bought another E-type! Afterburner is a synanon for an Air Force retiree; or if you like, I'll take your definition!

 

USAA: "United Services Automobile Association is a San Antonio-based Fortune 500 diversified financial services group of companies including a Texas Department of Insurance-regulated reciprocal inter-insurance ..." Okay, so not US Army Airforce....
Nice. I can't get that sort of insurance over here. Or if I could, the premiums would allow me to buy another Jag in a couple of years. But sounds like you made out nicely with that E-Type. Would love to see pics.
Makes sense about that meaning of "afterburner" in terms of "after" I guess. Though I thought afterburners were basically the most powerful, fuel-hungry, get-up-and-go part of the aircraft - not things I normally associate with retirement. (Might change my mind once I do retire, of course....)