New 2800CSA Member in WI

pstern

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Hey all, I don't have pics of my car with me right now, and I'll follow up shortly with those this afternoon/evening, but here's my story so far:

This will be my first restoration project, although my father in law has a long history of restoring vehicles, both on his own and full body off restorations by others. I will see this through to its conclusion, and I want to be as original as possible, without being stupid about it.

I purchased a 1970 2800CSA last october from a seller in NY, however the car spent most of its life up to that point in NC. Someone loved that car and took great care of it, but over the last few years you can tell it was sold from one person who was neglecting it to another for too little each time, until I got it for $2500. It's a very solid example with intact rockers, fuel tank and almost all of the body. The only area of middling concern for me is the front right shock tower, where there is some rust through. The only other area of rust is from the spare tire well, and I'm not too concerned about that one. How it made it this far in its life with that little rust I'll never know.

Interior is in great shape, no leather rips or fading, the dash is perfect except for the wood by the doors, and the wood on the steering wheel is cracked in several places. It's got a perfect headliner, and its seat-belts are all intact. The radio doesn't work, but I haven't yet gone through all the electricals as I've been focusing on other mechanical issues first. The driver side auto window is missing some parts, but that's not exactly high on my priority list.

I've verified all of this with a trusted mechanic who works on newer german and british cars of all ages, so I feel comfortable with the car I have. He replaced the head gasket on it as it was pretty obvious that it was going. I should also note that he offered me $7500 and a great bodied Jag (that didn't rum) for it after looking it over for 45 minutes.

That said, I have a few mechanical problems that I'd like a little help with:

I seem to have a problem with mysteriously disappearing brake fluid. It's never appeared on my garage floor, so I have no idea where it's going. Does anyone have any thoughts?

I can't seem to get the idle speed down at all. I've tried fiddling with the mixture to no avail. Should I send them somewhere for a clean and a rebuild, or could it be something else? If they should go in does anyone have any recommendations?

The car has sadly spent most of the summer in the transmission shop as getting parts for it has been a major pain in the butt. Does any one know where any parts can be had for the transmission on my model?

Also I'd be happy to get any advice out there from more experienced E9ers. Thanks again,

Pat
 
I also forgot to ask, does anyone know of a kit out there to get an american plate on the rear of the car which seems to be set up for european plates only?
 
Welcome Pat!

Your disappearing brake fluid problem...have you check the inside cabin where the MC attaches to the body, if it is leaking here then the you'll be able to see signs of it underneath the carpet. A more likely scenario is that brake fluid is escaping into the brake booster. The booster canister can hold a vast amount of brake fluid, hence the "disappearance" of the fluid.

Sorry, no experience in tuning carbs but we have many carb gurus here who can help you out.

If your tranny is a 4 speed, then I suggest you ditch it and swap in a Getrag 265 5 speed unit from an early 1980's 5 or 6 series. Makes for a more relaxed driving experience, a vast number of the coupes have done this conversion. They are a direct bolt on installation. The only modification needed is to shorten the driveshaft a bit. An easy task for any driveshaft specialist.

Good luck in sorting out your coupe!
 
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As I recall, La Jolla Independent ( http://www.bimmerdoc.com/ ) sells a license plate mount. They also carry used parts, so if originality is an issue, they could sell you the two "T" shaped pieces supplied by dealers back in the 70's (see photo below).

http://i356.photobucket.com/albums/oo7/jmackro/BMWCS04012009004.jpg

Bert offers good advice on the transmission (dump the slushbox) and the disappearing brake fluid (replace or rebuild the MC).

What sort of carburetors are on your car now? Zeniths? Webers? My advice would be not to bother shipping them off to some guru - if your mechanic is unable to solve this problem, then you need a better mechanic (your guy may be a saint, but have never seen a pre-fuel injection car before). Maybe the carbs do need rebuilding or replacing, but I wouldn't do that until someone competent has diagnosed things.
 
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Welcome Pat!

One of my CS's lost brake fluid into the booster. Fairly common. There's a one-way check valve in the large vacuum line that goes between the booster and the intake manifold. If that valve goes bad fluid can get back into the booster.

High idle may also be a vacuum leak somewhere. Start with the booster, then go over the engine one hose at a time and listen with a small hose to your ear while the engine in running. Some also like using a flammable spray, like brake cleaner, to find leaks (engine will change rpm when fluid is sucked in).

Don't forget the pics!!

Dan
 
Here are a couple quick and dirty pics. They are from the day that I picked it up from the transport company. I've done some major cleaning so that all the strange junk is gone.
 

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Your idle speed problem is likely a vacuum leak and probably not the carbs (like Dan said).
Your transmission is a Borg Warner BW65 and was used by other contemporary cars. I think Jaguars used them and also maybe some US cars of the time. Try to find a shop that specializes in auto trans and has someone who has worked on them a long time.
 
Thanks to everyone for the advice so far. I'll let you guys know more when I hear. I also should be getting the coupe back from the tranny shop this week, so I'm hoping to be able to post more pics for everyone.

One other thought I've been going over in my head with this project: How difficult a process is it to change the color? And I've found some color charts online, but they seem to be slightly contradictory, and I'd like to make sure I don't screw it up. If I were going to change colors I would go for Ceylon. I really think it captures the design and feel of the era better than most others.

Are there any other coupe owners in the upper midwest on here? I'm in madison, WI and I'd be curious if there are any outside of the Chicago area.

Also, if anyone has any other general advice or helpful hints I'm all ears.

Thanks again everyone!
 
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