Mine is not modified if you search mk1 3.4 it shows the same and your engine bay is clean the paint colour is nice i will get this old mk1 back to mint it will just take a while

 

Mechanical angle drive is part no C9914 look it up at SNG Barratt - The Ultimate Jaguar Parts Specialist

It looks like they may be interchangeable with the electric rev generator, the drive dog from the cam appears to be the same, so a later head and cams may well drive the mechanical drive and visa versa.

If you look up the part you will see which chassis no's this is on P970001 to P977859 and P985001 to P992651

 

I looked it up but mine only says mk1 2.4/mk1 3.4 and xk150/xk150s i get no chassis numbers do you have to log in for chassis numbers ?

 

On my post above :-
Chassis no's this is on P970001 to P977859 and P985001 to P992651

 

So checking chassis numbers that comes up as rhd or lhd 3.4 mk1 ?

 

I have just checked the parts book for the 2.4, the same gearbox is used on those also, and there was an earlier version part No C9913, but the later part is interchangeable with a different cable. See below:-

 

Mine would be the C9914 part as the 2.4 block number i have is BB3850-8 so that part is for either 2.4 or 3.4 mk1.

I would like to know what they changed at the back of the cylinder head from mk1 to mk2 as i remember reading that the rev counter parts couldn't be swapped without modification as something was changed. Any idea about that ?

thanks

 

Looks amazing too. Mind if I borrow the idea for my Blue car? I was going to go the highly polished route. But that's been a bit overdone, IMO, & I prefer your look anyway. Would look very classy in metallic blue too.

 

The rev counter was changed to electrical at Chassis no 977860 on and 992652 on, the camshaft was changed too and the new camshaft is the same as the MK2, so there must be a difference at the drive end of the cam that stops the conversion on earlier cars.

There is no such thing as can't, but it would involve making up some adapter housing and drive conversion, so unless you are very determined it wouldn't be straight forward to convert, you would also need a newer speedo, wiring etc. etc.

 

Thank you Tilleyjon

that is the info i needed as i got thinking why would someone go through the effort of swapping to a mk2 3.4 head but as i have the original rev counter with mech drive for a mk1 plus original gearbox that confirms my thought of my head being prefix KC which is what i originally read it as haha i became a little unsure with not being able to find the prefix posted anywhere online so i kept thinking i read it wrong. Still waiting for my paperwork to get this heritage cert hopefully its a factory done conversion. As being the early KC head anything is possible.

 

It may not be a MK2 head, it could be a late MK1 head from a 3.4 part no. C14956, fitted to Chassis no 977860 on and 992652 on.

Interestingly this is the same part no as the 3.8 MK2, which is C14956/1 but not the same part no as the 2.4 or 3.4 MK2's .
The /1 after the part no for the 3.8 would indicate that there was an upgrade to the part, but that it is exactly the same fit etc.

The inlet and exhaust valves are the same on the 3.4 MK1 as the 2.4, 3.4 and 3.8 MK2, but the valves are different on the MK1 2.4.

You should find the part No cast onto the cylinder head, this should tell you exactly where it came from.

I don't know what the differences are, just comparing the part no's.

 

I always thought the 2.4 was just the entry level motor, & one needed to go to the 3.4 or 3.8 to find real performance. So I'm surprised to find that there wasn't just one improved state of tune available from the factory, but three! Why was this? Were they raced in various grades, requiring different hp outputs? I'd love to know the history behind these upgraded engines & the cars they powered.

 

it would be nice to know as someone told me it was very pricey to have the mods done at factory, and the one booklet i was told about that explains what the mods are is impossible to find.

Does anyone here have the E/112 tuning modifications booklet ? Haha would be nice.

 

I found this one for the e type maybe the mk1 tuning booklet is similar but would be more engine mods ? Whoever told me mentioned the tuning might be something about the F.I.A regulations.
which is mentioned in the e type booklet.
http://www.jag-lovers.org/brochures/etypetune.html

The booklet that is impossible to find unfortunately this one is long gone

 

http://www.jag-lovers.org/ebooks/bookindex.php?Vbook=Saloons

worth looking at for info

 

Found out that the stage 3 tune was quite extensive, including B Type head with high lift cams, SU carbs and matching inlet manifolds, different distributor, twin exhaust, Champion NA8 plugs, upgraded clutch gearbox steering and suspension. But I can't find a full list.

They did the same with the 2.4 MK2, but I can't find a list for that either.

 

Wow quiet a list i know i have all the engine mods and exhaust
I'd say high lift cams as the motor sounds fast idle with a little lump quiet nice to listen to.

as for the rest i am unsure the original steering box fell in half when the guy i got it from owned it so its been replaced, gearbox i am unsure and my shocks are blue but unsure what factory shocks are.

thats 1 step closer to finding out the combo used

 

And my sparkplugs where replaced with NGK B6ES which is the cross reference for the champion NA8

 

Do you know what distributor is fitted on the car ?

 

No i don't i have 3 or 4 spare distributors that came with the car which may be the same i will check the part numbers is there a particular one it should have ?