Volkswagen Scirocco Mk1 Cutaway Diagram

We spent some time looking at the body in recent weeks. Time for a look under the skin...

VW Dasher / Passat B1 Cutaway Drawing

In the U.S. we always think of the Golf as the first water-cooled Volkswagen, however, it was the Passat B1 or Dasher (as it was named for North America) the one to beat the Golf to market. Essentially a fastback version of the Audi 80, it was intended to replace the aging Volkswagen Type 3 and Type 4. It's origins date back to a late 1960's design study by Giorgetto Giugiaro named the EA272. Offered in two and four-dour configurations, it was designed as a family car with a spacious interior. It was initially offered with a trunk with later models including a more practical hatch back. A 74hp 1471cc EA827 engine with twin-barrel carburetor was initially offered in the U.S. market with a K-Jetronic fuel injected version offered a couple of years after it's introduction. Most important of it all, it was my first car. Good memories. Good times...

Cutaway drawing from Terry Davey is a classic piece but shows a right-hand drive car :-(

Citroen DS - Hydropneumatic Suspension - Diagram

Just for kicks... Here is my English language rendition of a classic diagram depicting the hydropneumatic suspension system of the Citroën DS. Excuse my limited understanding of the French language. ;-)

Engines - Citroen DS Series

The Citroën DS demonstrated many innovations in styling, materials, and hydraulics. Originally conceived to be powered by an air-cooled flat "six", cash flow problems at Citroën resulted in the cancellation of that program leaving the DS to soldiered on till the 1970's powered by an ancient design that dated to the 1930's. Originally displacing 1,911cc (75hp), it continued to be developed with changes in displacement, different carburetors, an Aluminum cylinder head, and eventually even Bosch D-Jetronic fuel injection (2,347cc). The advantage? It is pretty sturdy making it a pretty reliable engine that is relatively easy to maintain.

Cutaway drawing showing engine internals (source).

Citroen DS Cutaway Drawing

The Citroën DS is a fascinating vehicle. It packs a lot of innovation for a car that was introduced in the mid 1950's. I have been searching for old technical drawings as you may have seen on other posts on this blog, especially cutaway diagrams. Looks like I finally found a decent one for the Goddess. Actually, it was right under my nose on the Citroënet site. It looks like it is of the initial version of the DS. I have sharpened it a bit to improve the contrast to highlight the details. Enjoy!

Source

VW Golf Mk1 Cutaway / Ghostview Drawing

The Volkswagen Golf (Rabbit/Caribe). Named after the Gulf Stream back in the days when VW used to name cars after prominent winds. It's popularity really change VW's future. I owned a 1978 Rabbit L in wonderful Mexico Beige back in the day. This is a cutaway diagram I have been wanting to see for some time. In this case its a Diesel. Another beautiful piece of art work by Terry Davey of Haynes automotive manuals fame.

1982 Twin-engine Scirocco

I remember reading about a cool twin-engined Volkswagen Jetta back in the early 80's. That was followed by a twin-engined Scirocco in 1982. This 360hp monster is the stuff that hard core VW fans can only dream about. Two 1.8 liter EA827 engines each one producing 180hp coupled to two 5 speed manual gearboxes made for a highly unusual approach to four-wheel drive. It also made for a direct competitor to Audi's quintessential quattro. With a zero to 60 mph in 4.1 sec it could embarrass major exotics of the day. Pirelli P7s (205/50VR15) on 7J x 15in Centra alloys helped put the power to the ground. A second and more developed prototype sporting Oettinger 16-valve heads and twin automatic transmissions was later constructed. Proof that sometimes two is better than one :-)

More about this cool ride at DriversFound.com

Ghostview diagram a great way to get an idea of what these cars were all about.

M35 - Citroën's Experimental Wankel Powered Coupe

It was the late 60's and Citroën was exploring the viability of rotary engines for future models. Enter the M35. Now this one is one that has been peeking my curiosity for some time. This interesting little coupe served as a test bed for a number of systems planned for future models in the range. In a "Beta test" of sorts, Citroën ended up producing 267 cars during the three year period between 1969-71.

I think that the very angular "fastback" profile is part of the attraction.

Citroen SM Engineering Drawings

My search for Citroen SM documentation continues... This time the search lead to orthographic projections. Here are a few variations found across the web. One good source for these can be found  @: SMCars.net

The Weber 42 DCNF Carburetor on the Citroen SM

The Weber 42 DCNF downdraft carburetor. A trio of these on top of the Maserati C114-1 V6 makes the Citroen SM sing. Carburetors are a fascinating mechanical solution to fluid metering. When they are tuned properly, they are awesome but it only takes one little thing to make you beg for mercy. Keep them clean and tuned for maximum enjoyment :-)

Source: Weber Technical Manual

Engines - Citroen SM C114-1

In the late 60's Citroen was designing it's one and only entry into the GT arena, the SM. It is hard to understand how a company like Citroen could build such complex cars like the DS but could not develop advanced power plants that matched the rest of these advanced automobiles. The SM was going to need a sophisticated engine in order to compete in the market. Their solution? Get their newly acquired subsidiary (Maserati) to build them an engine that would complement the SM platform. The task of designing this engine went to Giulio Alfieri and by the spring of 1968 it was ready for testing.

Front View

Citroen SM Cutaway Diagrams

Tonight I have been catching up on reading about one of my favorite cars - the Citroen SM. I have seen a lot of information but so far I have only come across a couple of good cutaway diagrams for the SM. I have always been fascinated by cutaway diagrams and how they reveal the inner workings of a machine. You can learn a lot about the interrelationship of the parts at a single glance.