Jaguar AED

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Discussion

mph

Original Poster:

2,337 posts

282 months

Thursday 26th March 2015
quotequote all
Anyone any idea where I can get an Automatic Enrichment Device (AED) for an XJ6 circa 1977 ?

The one on my car doesn't work correctly and the previous owner has already had it to bits.

Rather than buy a rebuild kit and then find out my own has been butchered (which is a possibility) I thought I'd get a used one and rebuild that as a straight swap.

Thanks

mph

Original Poster:

2,337 posts

282 months

Thursday 26th March 2015
quotequote all
I did think of a manual choke conversion but they appear to use the lower half of the AED anyway and I assume I'll still need an overhaul kit for the seals etc.

I'd prefer to keep the automatic function if possible although I appreciate that they never were the most reliable of things.

On the older units as fitted to Mk2 Jags etc. I seem to recall that it was a popular mod to fit a toggle switch on the dash so that the electric function of the unit could be over-ridden.

Would something similar be useful on the AED unit i.e. is it usually the electrical element that fails or is it the seals ?

To be honest I haven't really looked in detail at the unit yet and need to do some more homework

I believe mine looks something like this.


mph

Original Poster:

2,337 posts

282 months

Wednesday 30th September 2015
quotequote all
jith said:
For all who are interested, I am working on a manual choke conversion kit for all early Jags fitted with an AED unit.

It takes a bit of development because there are no less than 5 different SU carb variations across the range. But it will involve the total removal of the AED into the bin; the best place for it, and the fitment of a proper manual choke.

Watch this space.

J
Any progress on this ?

mph

Original Poster:

2,337 posts

282 months

Tuesday 24th May 2016
quotequote all
My 4.2 coupe has the manual choke conversion fitted.

It replaces the top of the original AED. I wouldn't say it's a masterpiece of engineering, although the car does start easily enough but needs a bit of throttle until it warms up.

Burlen services were supposedly developing an alternative to the AED but it doesn't seem to have materialised yet.