Engine bay rejuvenation

[simonandjuliet]

It's snowing here (it's the south of France, for goodness sake .......) so I got some extra time in the garage and carried on dismantling.

Sometimes we make good decisions, sometimes less so, but I made a good one today and removed the bulkhead "shroud". It has helped define the original colour scheme, explained the blocked drain and allowed me to protect the metal before it got any worse ..... there is only surface rust , so I was lucky

The eagle-eyed among you may be wondering if green was the original colour , and I'm now pretty sure that it was originally silver. We know that it has been green since at least 1971 when it was imported, so it's staying green - I love the colour and to my mind suits the shape !

So I'm going to paint the engine bay body-coloured and the "shroud from Turin" satin black along with battery cover and loom covers. All the evidence points to that being the original format

Also spotted the same number stamped on the bulkhead behind the "shroud"

The dash is out , along with the steering column and all the levers etc. I split the steering hub because I didn't want to risk damaging the wheel centre, they are VERY delicate. If I can find the bits I will re-introduce the central horn push - more later

Loom is out and I will re-wire because there are a few dodgy wires and old mods. I have some nice black, woven, modern wire that I bought for the Cabrio so it will look correct

Just need to remove the rest of the braking system and steering box, then we are ready for Dog to do his magic

[chriswgawne]

Great photos Simon and good to see there is not really any hidden corrosion apart from that drain pipe. Stupid question but why was the bulkhead + shroud designed in that way? Was it for enhanced rigidity possibly or is the shroud just a cover?
Chris

[simonandjuliet]

Chris - absolutely no idea ! Noise ? Option to hide stuff ? Option to modify the position of things ? Aesthetics ? .... Who knows !

Still snowing (!) so bit of wiring prep today, I hunted down the correct, late, S2, 12V wiring diagram and notes, then started to convert it into more useable and practical garage sheets

I will add wires for indicators and electric fuel pump and have attached the wire destination codes (as found on the metal tags)

If it all works , I will upload neater versions to the "Technical Data" thread at some point

[simonandjuliet]

Ready for Dog now, last bits removed

A bit of a looming problem (and nothing to do with wiring ....sorry!) is the exhaust manifold.

My S2 manifold has started falling to bits - not the first time because it has been patched up several times before. So a few options:

• Repair mine - difficult because it's cast iron
  Find another - everyone else has same problem ,so rare
  Use a 4:2 x 2 - see photo - but this will need radical exhaust change
  Build 4 pipe manifold - this was mooted many years ago by Norman Wilson of Sheringham fame - also needradical exhaust change , but would be quite cool
  

Non of the above is easy !

I have loads of very good first series manifolds (maybe point 5 is modify S1 ) but no S2 - can anyone help ?

Happy to swap/buy !

Thanks

ps picture of louvres on the S2,

[DavidLaver]

Am sure they'll be a specialist welder who'd repair the original manifold...  A copy of the automobile might yield an advert. 

[Andrew Cox]

I suspect the rationale for the double firewall, the extra vents in the engine compartment and the transmission tunnel were all efforts to dissipate heat and keep it out of the passenger compartment. Probably not an issue in the U.K but could have been a concern in Italy. I’m fairly sure someone in Italy was offering “bunches of bananas” for both series engines as being for sale a few years ago.

[Sebastien]

Bananas, you said bananas?

[simonandjuliet]

Now, that IS nice !  Thank you and where did it come from/who made it ?

I have a Nardi manifold as well - maybe that's a project for the future !

[Richard Fridd]

Yes , very nice!

[Sebastien]

As far as I know, it was made by, or for Officina Gamberini, near Bologna:

https://autofficinagamberini.com/auto-depoca/

[DavidLaver]

https://www.castironwelding.co.uk/blog/richard-hammonds-classic-car-restoration-smallest-cog/

https://www.castironweldingrepairs.co.uk/classic-vintage-veteran-motor-vehicle-casting-repairs.php

https://www.prewarcar.com/pwc-workshop-cast-iron-welding

[simonandjuliet]

Thanks for the links - If I can't find someone here in France , I can always send it back. I want to get the exhaust manifold ceramique coated as well

[lancialulu]

Thanks for the links - If I can't find someone here in France , I can always send it back. I want to get the exhaust manifold ceramique coated as well

Local guy to me can de rust and ceramic coat at much less cost than Zircotec.. I also have a good welder of cast iron. Depends how thin it is.

[Jay]

Sorry to but into this great thread. Sebastien image of the engine bay shows a thermostat housing similar to some of the Series 2 cars I have seen, with what I am assuming is a water temperature sender and what looks like a 15mm copper pipe take off. Can you tell me what this is for, is it for an internal heater, intake manifold heater or even a cold water ‘pump bypass’ similar to modern 3-way thermostat cooling systems?
          
The reason for asking, I am looking at adding a thermostat here. But what I can see with S2 cars is that the thermostat restricts the flow without any bypass, therefore the pump is spinning the same old coolant until the thermostat opens up. Is that assumption, correct?  

Plus a I have 4 quite bad condition radiators, however one has an extra pipe at the bottom which look like it could be used as a cold coolant bypass to the pump.  

[simonandjuliet]

Jay , please "but into" this thread as frequently as you can .....

If you look at TAV 20 there is a pipe (45) that goes from the water pump to the bottom of the inlet manifold - it isn't shown on the TAV and my S2 has been crudely blocked up, so I can't show a real-life photo yet, but I plan to re-install it during this "rejuvenation"

I think that most waterpump castings have this option