Hello, I am working on putting together a 1959 MK 1 with a 3.5. I got a used engine and pieces from here and there. Does anyone know where to get information? Right now I'm trying to find out how the carb linkage goes on? Any help much appreciated.

 

All I can suggest is you search the internet for the workshop manual, and parts catalogue. BTW, the engine is referred to by Jaguar as the 3.4 litre.
It is a very late Mk 1 if it's 1959, as that was the year the Mk 2 came out, so I suspect the carburettor linkage will be the same as the early Mk 2. Hope this helps you. Have you got the traditional "tea chest" full of bits ?

SNG Barratt very graciously put the parts diagrams on a lot of their spare parts pages. There is nothing for the Mk 1 carbs linkage, but the drawings for the Mk2 are there. You can get a lot of stuff from them for cars like yours or they may be able to suggest an alternative.

 

Delete ~ my comment applied to 2.4's

 

Fraser, There are lots of bits and pieces here and a lot missing. We started with a body and got thge 3.4 from ebay. Now trying to piece the puzzle together. Thanks For The Tip.

 

Follow Fraser's wise advice. You need all the exploded diagrams.

 

The motor we got has a vertical flow intake, so on eBay we got vertical carbs and I believe they are S.U. HD. But we are looking for some linkage we have the pieces that links the carbs together, and the linkage on the firewall including 2 long links to reach the engine, so we need the pivots and links that should be on the motor. Thanks for responding.

 

Vertical flow manifolds were for twin Solex carbs fitted to 2.4's only.

Only the very final 2.4's had side draught SU carbs

All 3.4's had twin side draught SU carbs. Your manifold is wrong.

 

Glyn, we bought the motor on eBay and cast on the block is 3 1/2 liter. The manifold and head were on the block and the ports seem to line up so it should run ? I hope

 

The 3.4 was a 3442cc engine. Yes they cast 3 and a half litre on the block. It was always known & badged as a 3.4

What downdraft carbs are you going to try & use? I would get rid of that manifold. The Solex carbs were not satisfactory even on a 2.4. I doubt they could even breath adequately for the 3442cc engine.

 

I started with a bare shell, although I had another Mk2 that I cannibalised to form the new car, so I could always refer to the old car for how to re-assemble. It would be useful for you to find another Mark 2 owner near to you and request that he allows you to take photos. With mobile phone cameras this is now far easier than in my day when we had to use film.

 

I have to agree with Glyn. Don't even think of using the downdraft Solexs on a 3.4 engine. They aren't even adequate on a 2.4 engine. I have modified 2.4 engines with SU HD6 (13/4 inch) carbies and the difference in performance is very notable.
The increase in carby breathing area going from solex 11/4 inch to SU 13/4 inch is actually around 95%
You will need to find an intake manifold from a 3.4 or 3.8 engine as fitted to a MK2 or S type and some HD6 carbies. The MK1 carby linkage system is exactly the same as the MK2. Trust me on this one as I have rebuilt at least 4 MK1s and 4 Mk2s.
(I still have one MK1 and one MK2).
If the cylinder head number starts with an "A" then you will have small valves as fitted to the early 2.4 engine and it is not really suitable for a 3.4 engine. If the head number starts with a "B" then it will be OK for a 3.4.
Do you have drum or disc brakes? Drum brakes were standard but disc brakes were an option.
Cheers
Bill Mac

 

Yes ~ the B head is the so called "big valve" head. Designed to match up to & include the 2 carb 3.8.

 

I didn't want to convey the concept that the 'A" head was unusable on a 3.4. My first Jaguar was an early MK7 and the engine number was A5474-7, (I bought this car second hand in 1963.) This was the lower compression rating 7-1 XK engine being exported to the "colonies" because of fuel octane concerns
The theoretical HP for the early series XK engine with an "A" head was 160 however that was based on a 8-1 compression ratio. I don't know what the 7-1 engine delivered but it was "adequate". I could just make the magic 100mph on the speedo running downhill with a following tailwind (and radar speed cameras had not been invented!)
The "B" series head should deliver about 30 hp more than the earlier "A"
Bill Mac
currently 5 jags. MK1,Mk2,S3XJ6, X300 early( a little rough), X300 late( near concourse)
Have owned 18+ including MK5, Mk7(2), MK8 MK10 S2XJ6, S3XJ6, XJ40, XK120, MK1 (5),MK2,(5)

 

Understood but not ideal. All SA built Mk2's & S Types were 8 to one CR due to colonies Octane concerns. No 2.4's were built here & all S Types were 3.8's

Lyons did a deal with the SA Govt to get around the local content program (which was by weight in the early days). Blank heads & blocks were sent to SA. All machining & engine assembly was done here on nice modern equipment for the day.