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1972 Innocenti Cooper 1300

Posted: Mon Sep 14, 2020 12:26 pm
by MiNiKiN
After some time with you here in the mk1-forum I thought it is about time to share what my son (aged 19) and I (considerably older) are working on.
It is a rather rare Innocenti Mini Cooper 1300 B39/6 - i.e. the pre-export model without all the Leyland branding and different to the Export in many aspects.
Only 9992 B39/6 were built between Feb. 72 and March 1973. It has the 1300GT-based engine with remote gear-change. Colour is 'blue notte' (nightblue) with 'sabbia' (sand) roof and tan interior.

I bought it about 7 years ago, as quite a complete, but partly dismantled car (previous owners deemed it a parts-donor, so price was a steal). Most of the rare innocenti-specific parts are present, and the shell mainly needs new panels in floor and boot, but generally the condition is good - probably due to it being stood somewhere in Italy for most of its life. This is supported by its low mileage of just 30,000km.
More or less just before and during lock-down 2020 we started to restore it as a father-son project, so I can pass-on some of my restoration skills to my offspring Nicolas, who is apart from being a gaming nerd more into japanese cars.

We try to re-use and restore as many original parts as possible and the aim is to stick to original looks, etc. only allowing us some period correct modifications to the engine and suspension.

This is what we started with:
Inno_2013_#2.jpg
Inno_2013_#4.jpg
Inno_2013_#3.jpg
Inno_2013_#1.jpg
Inno_2013.jpg
More pictures of the progress we since made to come soon .
Cheers
Marcus

Re: 1972 Innocenti Cooper 1300

Posted: Wed Sep 23, 2020 11:37 am
by 66Traveller
I used to own one of those - I bought it from a man in Sicily _ really nice specification - much finer details than the 1300 export! I sold it to the Innocenti registrar of the MCR - wish I'd kept it!

Re: 1972 Innocenti Cooper 1300

Posted: Thu Sep 24, 2020 10:10 am
by MiNiKiN
Very nice car and colour combination it seems from the pictures.

Yes, the subtle differences to the Export make it more desireable I think. And the B39/6 is much rarer at only 9992 cars built in total.

Some more photos of the previous and current progress can be found in my album
https://www.flickr.com/photos/marc_mini ... 4101789798

Our 'philosophy' is to also finish little jobs on smaller assemblies, whilst we carry on cutting out and remediating the tin-worm on the body. The aim is to have little in-between success stories by doing so.

Re: 1972 Innocenti Cooper 1300

Posted: Thu Sep 24, 2020 10:45 am
by 66Traveller
Excellent - nice wheels. I had a set of Cromodora Fergat for mine which went with it when I sold it. The Cosmics are very nice (although not a fan of the Minilite centre cap in the 4.5J one!).

Re: 1972 Innocenti Cooper 1300

Posted: Thu Sep 24, 2020 12:05 pm
by mk1
Now that does look like an interesting project.

I have always had a soft spot for the "superior" Innocenti Coopers. It's good to know that another one will be finding it's way back onto the road before too long.

Re: 1972 Innocenti Cooper 1300

Posted: Thu Sep 24, 2020 10:20 pm
by surfblue63
66Traveller wrote: Wed Sep 23, 2020 11:37 am I used to own one of those - I bought it from a man in Sicily _ really nice specification - much finer details than the 1300 export! I sold it to the Innocenti registrar of the MCR - wish I'd kept it!
I have seen that car, it is still with Foster.

Re: 1972 Innocenti Cooper 1300

Posted: Fri Sep 25, 2020 12:46 pm
by 66Traveller
Excellent - glad to hear that

Re: 1972 Innocenti Cooper 1300

Posted: Mon Nov 16, 2020 8:39 pm
by MiNiKiN
A quick status update - what happened in the previous series and episodes:



We (which is my son Nicolas and me) cleaned the subframes and had them sandblasted. Once back, I straightened all the dents and kinks of the frames, which I suppose were the result ofthe car beeing rallyed in its mostly unknown past life.

Then I added quite a lot of seem welds to reinforce the rather poorly welded FIRSAT frames (originally the rear had 1! spot weld every 7cm) and I replaced some rotten section of the longitudinal girder.

Finally we coated both in 2 layers of Hammerite black (in hindsight I wish I had sprayed the paint rather than brushed on)
Subframes_#1.jpg
IMG_6419.jpg
IMG_6426.jpg
IMG_6430.jpg

We sandblasted, primed and coated all suspension and brake components.
Front_susp.jpg
2B cont'd

Re: 1972 Innocenti Cooper 1300

Posted: Mon Nov 16, 2020 8:58 pm
by MiNiKiN
cont'd:
Neg_Camber_MiNiKiN.jpg
The engine compartment is completely emptied and the engine itself dismantled - except for the bores and pistons (which heavily stuck together, because the engine was stored with the head off for decades) the internals showed little or no wear, which is commensurate with the low mileage of ca. 30k kms.
Engine_#1.jpg
Engine_#2.jpg
Remote_#1.jpg
Remote_#2.jpg

Re: 1972 Innocenti Cooper 1300

Posted: Mon Nov 16, 2020 9:06 pm
by MiNiKiN
cont'd

We then cut out all the metal affected by the tin worm. Which means: both outer sills, front floor pan, cross member, rear subframe mounting panel (partially) and the majority of the boot floor with valance and so on and both A-panels.
Stripped the car from all the crappy seam sealer and underbody schutz.
Body_#1.jpg
Body_#2.jpg
Body_#3.jpg
Body_#4.jpg

Re: 1972 Innocenti Cooper 1300

Posted: Mon Nov 16, 2020 9:20 pm
by MiNiKiN
Cont't

As fillers we restore all the odds'n ends like the steering rack, the ashtrays, fuse box - every bit gets the necessary and VERY time consuming treatment. In particular as my motto and aim is to refurbish as many of the original parts of the car.
steering_column.jpg
NB: The torn seam will be repaired - probably filled with liquid leather..
Seat_cleaned.jpg
innocenti
Seats in not so good condition - but we have bought a set Corbeau replicas which will be covered in a matching Innocenti cream fabric and vinyl
Heater_Unit.jpg

Re-designed and 3D-printed the Innocenti pedal rubber :geek: :geek:
Innocenti_Pedal_Rubber v2.jpg
The chassis is going to the sandblaster tomorrow - so we are going to further focus on the engine rebuild

Re: 1972 Innocenti Cooper 1300

Posted: Tue Nov 17, 2020 8:14 am
by mk1
Looks like a cracking project!

Let's see what the sandblasters uncover :D

Re: 1972 Innocenti Cooper 1300

Posted: Tue Nov 17, 2020 11:59 am
by MiNiKiN
mk1 wrote: Tue Nov 17, 2020 8:14 am Looks like a cracking project!

Let's see what the sandblasters uncover :D
Nothing the angle grinder hasn’t uncovered already . :lol:

Re: 1972 Innocenti Cooper 1300

Posted: Sat Nov 28, 2020 6:12 pm
by MiNiKiN
Steady progress - Many hours of hard labour went into:
• porting the head, now 90% finished, except combustion chamber measurement and correction [~12h in total]
• Lightening and polishing conrod No. 2 [4h]
• refurbishment of clutch- (19mm) and brake master (18mm bore) cylinder [4h]
• cleaning, disassembling, blasting and painting the original Lockheed brake callipers [another 4 hours roughly]
Times are net, so no overthinking over a glas of wine included. :D :D
Head_ported.jpg
Conrod_weighing.jpg
Conrods.jpg
Master and Callipers.jpg
Got to thank my girlfriend Susan for letting me spend so much time on this my obsession

Re: 1972 Innocenti Cooper 1300

Posted: Wed Dec 16, 2020 12:45 pm
by MiNiKiN
Finally got the chassis back from media blasting, readily primered in 2K-epoxy. Will start welding over Christmas holidays.

In the meantime I have refurbished some of the plastic and rubber parts - put the plastic stuff in the dishwasher and the rubbers with some fabric conditioner in the washing machine. The parts turned out really nice - the rubber in particular. Finished it off with tyre foam.

The con-rod balancing and weighing did not work with the "tool" shown in the last post - so I had to make a real balancer from stuff I had in the raw-material -drawer. A bit of PTFE , steel and a few roller bearings and hurray - Bob's your auntie!
Con_Rod_Balancer_#1.jpg
Con_Rod_Balancer_#2.jpg
I should actually quit my pen-pusher day-job and become a Youtube maker - and he lived happily ever after (impoverished though :D )

A big MS delivery is due to arrive this Friday along with plenty of stuff from other sources so we can carry on with gearbox and engine overhaul and modification.

Some nice Cibie Iode45 spot-lamps will at some point round-off the period racer look I am trying to achieve.
Cibie_Spotlights.jpg

Re: 1972 Innocenti Cooper 1300

Posted: Wed Dec 16, 2020 9:00 pm
by davidnutland
Nice project, having owned Cooper Exports and a Cooper 1300 I loved the 1300, unfortunately so did rust and it was broken for spares many years ago I do still have my first Innocenti though, a 1972 Cooper mK3, it has been with me since 1979.[img]
lfx beaulieu 2015sm.jpg
[img]

Re: 1972 Innocenti Cooper 1300

Posted: Fri Jan 08, 2021 12:02 pm
by MiNiKiN
The weather is too miserable, wet and snowy to get the body shell out of the garage and do some welding.

So instead we carry on sandblasting, cleaning and blackening small items. As an anti-boredom and encouragement to carry on, we starteed re-assembling the front subframe and carburettor assy.
F_Sub_Assy.jpg
Carbs_#1.jpg
Carbs_#2.jpg
For some unexplainable reason, during strip-down I was convinced that the upper arm shafts and bearings are in good order. Judgment must have taken place after the 2nd bottle of Zweigelt or so I suppose. :D I think I should consider replacing these...
OMG_#1.jpg

Re: 1972 Innocenti Cooper 1300

Posted: Sat Feb 06, 2021 12:11 pm
by MiNiKiN
After finishing both subframes, i thought I have a go at fixing the leaky tank.
Mind you, there is no option to buy a new one, because the sender unit is bolted not bajonet.
At first I noticed a few pin holes in the bottom, pushing with the fingers revealed these holes to be for pretty big pins :shock:
Anyway, nothing a bit of welding and lead loading couldn’t fix..
3C6057E6-B828-44B5-BF01-6FC3DBF9A711.jpeg
5CC874BD-EFA0-46E2-879B-768A9479D0EC.jpeg
E8C3BB12-3FA1-4953-8462-A12CC67DF2D4.jpeg
1335772C-9AE8-4A65-8E8F-5F76551EF673.jpeg

Re: 1972 Innocenti Cooper 1300

Posted: Tue Feb 09, 2021 5:11 pm
by Stopped-again
Hi there, admire your repair on that tank, from past experience petrol will find the slightest flaw in any welding, but I would imagine the lead loading helps with that. I have got, if you are interested, a really good second hand Innocenti tank complete with sender unit. Probably not practical to post it to you in Austria but if you ever manage to get this side of the English Channel contact me and we should be able to get it somewhere in this country for you. I don’t if I’m stupid but I’m converting an Inno. into a normal Mini but when I got it there were too many bits missing to put it back to standard. Loving reading about your project.

Re: 1972 Innocenti Cooper 1300

Posted: Wed Feb 10, 2021 1:41 pm
by MiNiKiN
Stopped-again wrote: Tue Feb 09, 2021 5:11 pm Hi there, admire your repair on that tank, from past experience petrol will find the slightest flaw in any welding, but I would imagine the lead loading helps with that. I have got, if you are interested, a really good second hand Innocenti tank complete with sender unit. Probably not practical to post it to you in Austria but if you ever manage to get this side of the English Channel contact me and we should be able to get it somewhere in this country for you. I don’t if I’m stupid but I’m converting an Inno. into a normal Mini but when I got it there were too many bits missing to put it back to standard. Loving reading about your project.
Thanks for your offer, shipping the tank would be horrendous and then customs :shock: :o but should I visit my friends in Northampton once, I could as well go up a bit further and visit the sherwood forest again ;)

To be honest, one reason for saving this tank, apart from being to skint to buy a used one of questionable condition in neighbouring Italy :lol: (might be available for an arm and a leg - or a kidney nowadays), the actual reason for saving it was: It still has its original car paint code sticker on and a yellow factory brush mark to confirm it's tight. Very nerdy :ugeek: I know.

You are right, I lead loaded it because it was difficult to get the weld imporous, given I dont have TIG and the adjoining areas are wafer-thin and rusty from the inside.

But it is not leaking any more, and I have started to de-rust it internally with citric acid.