I have an XJ Series II who's front end is now lowered for a series of tasks. At this point starter & alternator are out. Will reinstall shortly.
Any reason to retain air pump?
Vehicle no longer required to pass smog check to be licensed.
My instinct is to yank it, but my instincts are frequently wrong.
Anyone ever repurpose these things as a block vapor evacuation pump? (Keep ring blowby pressure off oil seals?)

Appreciate actual answers OR general musings.

 

my 1984 still has it. One day it should win a trophy for "originality". Last XJ on Earth with an Air Pump system.

 

Keep it. Someday down the road someone may own it in a state where it is required to pass emissions. I plan on owning my '79 forever but at my age forever is flexible. Just imagine if our cars are still on the road 50 years from now. Plus, you never know when the state you live in will change the law.

Jeff

 

Mine, although on a Chevy, mostly acts as an idler for the Alternator.
But as I live in California, and my car was born January 1976, ONE MONTH TOO EARLY TO BE EXEMPT, so the pump is required.

As Jeff mentions, you never know when the law makers will decide that to retroactively require all emissions equipment the car was born with to be present and working correctly or you don't get to drive it anymore.
(';')

 

Thank you, all!

Speaking of 'originality', the heap I'm working on is of obscure provenance. Odometer claims '90,000+'. Yet appears to have been off the road for a very long time.

Was at least 2 PO's stalled project. Had Washington State plates from 2000 but I don't know if they actually belonged to this car.

Yet came wearing a Unipart oil filter, has British Leyland mufflers, and underhood vacuum lines embossed with purpose of each line. All factory ignition wire ID tags are in place and in good shape.

I believe the preceding would've come on the car when delivered. For how long would Jaguar Dealerships (or independent shops) in U.S. still use Unipart filters and BL mufflers? That is, by what year would this stuff no longer have been available 'off the shelf'?

 

in these cars, you should not believe the odometer mileage because the speedometers fail and can be replaced in 5 minutes. In 3 minutes after you learn the steps. The car itself will tell you its mileage.

British Leyland was no slouch, they owned the place since the mid 1960's. MG, Jaguar, Triumph, Rover, and other marques were supplied by BL. They were a massive empire of parts supply. There is a video about British Leyland operations in youtube.com. They even owned a fleet of dedicated airplanes to deliver parts in crates. All those marques shared parts. For example the side markers in MG were used by Jaguar XJ. In fact the rear red lenses used in MG since 1970 are nicer than the ones in the Jaguar because they are flatter more aerodynamic, and either one fits the other car. And both lenses have the same part number.

Jaguar dealers and all other parts suppliers still sell oil filters for all engines made since 1948. Nowadays they have the Jaguar logo printed on them.

 

i removed the entire system in early august of this year and have not realized any negative effects. if you conduct a search of the following 2 posts, you'll find good information: xj6 series 3 air pump removal by jagxj6s3 on 8/26/17 & air/smog pump removal question by retroren on 7/23/21

i saved everything that was removed for the next owner or to sell or to reinstall. it was not a big job to remove everything.

 

I bet you did not realize any improvement either?
Sorry I couldn't resist that one.

 

The pump onl;y works for a short time at start up. My votr of I had one, which I do not, would be to keep it as it may e needed for SMOg law sometime, or somewhere.l jhere in CA as Elinor says, it is. I have the GM version under my bench. almst exactly, the same as the Jaguar version. Why, cuz GM was the source!!!

Carl

 

yes Carl, GM Delco. From the time they were Made In The USA. But No Moe.

 

Can anyone provide a photo of the aforementioned air pump please? My 71 XJ^ seems to be pretty complete and i would like to verify what is what!

 

i only did it to clean the engine bay of a system that wasn't critical. i checked with trusted members of this forum regarding and ill effects from removal before i did anything. and i saved everything in case the next owner wants to clutter it up again or the car is used in a state that requires such equipment.

 

DBaer:
The '71 does not have this
Rob

 

the system is used in the fuel injected engines, not on carburetted engines. A ghost from the 1980's when the smog fever infected politicians and they started blaming car manufacturers.

 

For now I'm sticking with the pump, mostly because the pile of work I must do has precedence over what I'd like to do. And I'm too lazy right now to figure out an idler pulley to replace the pump pulley.

The vehicle is a 1975 XJ12C with fuel injection. So came with an exhaust air injection pump.

I have a working understanding of BMC - BL history. What I'm seeking is any published info or 'back inna day' memories of what years, or the last year a Jaguar dealership customer would've gotten a Unipart oil filter or marked BL mufflers. The corporate kaleidoscope of British Leyland history is available on-line. Any information on how which part was marked/stamped what is very elusive. The British Leyland 'Flying Plughole' corporate symbol had the 'L' in the center from 1975 to 1977. Which is how my mufflers are stamped. By 1979 was no longer using 'British Leyland', was just 'BL'.

Anyone remember last year(s) that stuff would've crossed a parts counter or emerged from a dealership parts room?

Thanks

 

Thank you Rob, that makes it easy. My unit must be the A/C compressor, long disconnected. I have the parts but yet to sort it out