I have been going back and forth on posting an update. Still not sure it's a great idea but whatever.
Also, Google broke the Picasa thing, so if the pictures don't show up, don't worry. They sucked anyway.
Right around the time I posted this update, I ordered tires from Tire Rack. They said I'd have three the next day and two in a week. Great.
I had been going back and forth with the Porsche shop that was working on my oil cooler lines. There's really no good reason it should be taking this long, but apparently the correct cloth-wrapped hose is not available with the correct OD/ID for this application, so we had to look elsewhere. We made arrangements for Friday the 29th. His schedule has been tough since they're moving their shop of 30 years into a brand new 30,000 square foot facility and obviously this piddly oil line project for a non-Porsche has taken enough of their time. Of course, he didn't say any of that and I really did appreciate the effort they have put into doing this the right way.
I got the driveshaft heat shield installed. It sucked, mostly because it's not in really great shape, but believe it or not, the original from the car is the best one I've found. Part number was superseded to the E28 style which doesn't fit the E12 since the studs are in different locations. Fortunately, I did my homework on that before ordering one blindly. Of course, as with everything on the car, it took two hours to attach six M6 nuts and washers. Not sure why but whatever.
While I was still pissed off from the heat shield, I decided to hang that giant, heavy, hard-to-balance exhaust alone on my back with the car on jack stands. I got it done, though I did have to do some light sanding and whatnot due to the thickness of the ceramic coating where the front muffler mates with the downpipes. I was so excited by the experience I didn't take photos.
With that done, I called it a night. On the 29th, I went to get the cooler lines and said that since the motor and oil cooler are in the car, why don't I take the lines before we crimp them and make sure they fit. He showed me what he had for hose and while it wasn't as nice as the original, it was better than many things being a high temp, high pressure hose. We put them together and I went home, and mocked them up.
The shorter line was really tight and I didn't like the way it was sitting. Couldn't be right. Frustrated, I went back and explained the situation. He knew the measurements. One hose was 29" and the other was 25.5". Turns out the one he gave me was the leftover scrap from the section of hose, so that was easily rectified. He crimped the collars, I paid him and I thought there was a real chance I'd get this damn thing running the next day.
Why the next day? Well at this point, the radiator wasn't installed and neither was the airdam since I wanted to make sure the oil cooler connections were correct, then install the airdam then do the radiator, since it would be a lot easier to do it than trying to feel around for the fasteners, etc.
After I got the hoses, I popped on over to the polishing shop in Mesa. Years ago, I pulled this nifty aluminum oil cap off of a '67 1600 that I found in the yard. A beam had fallen on the car and there really wasn't much I was interested in, but the oil cap was neat and I took the fuel cap as well (still have - super nice shape). I have used this oil cap on a couple of cars, but it had some light scratches and I thought it would be something he could knock out in a day or two if I asked nicely. He told me to have a seat and read a magazine. The top one was a 1956 issue of Car Craft, and it was pretty interesting seeing what people were doing to pre-war cars back then. I only had time to read a couple articles and he came back out with a nicely polished cap for an image of Alexander Hamilton.
After running other errands and finishing up some other work, I did what needed to be done. Installed the radiator, shroud, fan, "intake muffler" and added six quarts of this stuff:
I bought 8 and figured that after the oil cooler thermostat opened, I'd add more, but for initial startup, I'd be good with the 6.
I had to take the valve cover off to install the distributor. Since the crank nut was tightened and whatever, I wasn't sure if the top of the motor was at TDC anymore. I probably could have figured it out by looking through the oil cap, but I decided to be careful and make sure that #1 was in fact at TDC, and that required turning the motor a full revolution, so glad I checked that out!
By that evening, we were here:
I decided this thing was going to run on my birthday and that it would be awesome.
The next morning, I added coolant and brake fluid. I then chased down all of the brake fittings that weren't tight, dumped distilled water over pretty much everything and then bled the brakes. I wasted a ton of brake fluid bleeding the rear calipers, since I figured that air was actually coming in through the threads on the bleeder. Couldn't figure out all these stupid bubbles. I could have probably poured it back in but I was certain that my catch bottle was contaminated with something so I disposed of it anyway. I got a great clutch pedal, but the brakes weren't good. I'm thinking that the fronts need to be done again, likely the right front - I don't think I had the bleeders open long enough. I decided to do that when I get my tires mounted since I didn't feel like taking the wheels off again.
With all of that done, it was time to take the battery out of the 530i and put it in the M535i. Then I realized I needed fuel. I got five gallons of fuel and poured that in the tank. Nothing was leaking, everything seemed good to go.
I pushed the car out into the driveway so that if something did happen like a backfire or something, I had less of a chance of burning down my house. I approximated the position of the distributor looking at one of the 6ers. Turned the key to run and noticed the fuel pump was running, which shouldn't be happening. I briefly looked into that, but figured fuel was probably good, so I cranked it and it fired right up. No extra cranking for fuel pressure or anything. Then it died. Bummer. Tried again, same thing. I started pouring over wiring diagrams and making sure everything was correct and given I had no exact M90 with this version of L-Jet, everything looked correct. I was hoping to have Alex come by so he could do the final torque on the head, but I put that off until I had this thing running.
I couldn't figure out the fuel pump running with the key on. I figured it had to be related. I was getting very spotty voltages, I had solid grounds with good continuity. I was stuck. My birthday totally sucked. I was sweating all over my car. I didn't even get a chance to get any of the free meals I was looking forward to. Shitty day. This car was ruining my life. It had to run. Had to. The next morning, I had to work, but I conferred with experts on wiring, L-Jet and E12s in general. Everything was pointing to the combo relay, but I bought a new one when I got the car and had two other very recent ones I pulled from cars in the yard. Of course, I didn't know if they were good and very well could have been the reason they were there. I spent hours on the phone trying to work this out, swapping components and I had even heard the words "broken wire in the harness" and that wasn't going over well. The problem I kept having was that sometimes I'd get power at both pins 10 and 29 ad the ECU, but sometimes I'd only get power at either 10 or 29. Swap combo relay then it changes. Couldn't figure it out. Every time I made a change, start the car. It runs for two seconds then dies.
Monday morning, it was suggested that I run a wire from terminal 1 on the 530i's coil to the trigger for the ECU and see if I can get the injectors to pulse. I said, okay, I'll do that, but instead I decided to order a new combo relay since I knew I could get one and try that first before hooking the two cars together since it was easier, especially considering I only had the one battery. Before I installed it, I checked every damn thing to make sure that I didn't screw something up in the car with the fuel pump wiring and that it was feeding from another circuit. Once I was satisfied, I plugged the combo relay in. I turned the key to run. Fuel pump wasn't running. Whoa. Cranked it and the damn thing fired right up. It was running around 2000 rpm, so I rotated the distributor to retard the timing some and I ran back over to check the cluster and that's when I saw the oil light didn't go out. It had been about 20 seconds. I shut it off immediately. I had heard people say it could take 30 seconds or so for the light to go out on the initial start, but as long as there was flow, we were fine. I opened the oil cap and I didn't see any oil at the top of the motor. Still some assembly lube, but no oil. I called Alex and he said he'd think about it and get back with me. He told me to see if the filter canister had oil in it. I confirmed that it did after disconnecting the battery and loosening the bolt for that stupid contraption.
My tires showed up.
Tuesday morning, he called and said he thinks he may have not installed the pressure relief valve in the oil pump. He had me call a tow truck. So, in order for that to happen, I had to remove the airdam. I grabbed the original front housing of my oil pump and sure enough, the relief valve was still in place.
This showed up Tuesday, just in time to help.
Wednesday evening, I got these photos.
He said everything looked good and the next morning, they were going to put the oil back in it, install the fan, etc and I could come get it running when I had a chance.
The next morning (Thursday), he sent me a text saying they had oil pressure. He unplugged the combo relay and got pressure by cranking. Light went out. Great.
I got to the shop around 1pm and was pretty excited. I put some of the wiring I had changed so I could close the hood back the way it was when the car ran. Cranked the car over and nothing happened. Just cranking. Weird. I did a bunch of testing and found I didn't have spark, but what I couldn't figure out was that I had 12v coming out of pin 1 on the ECU harness without the AFM installed and 6v with it installed. I was stuck, so I spent quite a bit of time on the phone with both Mike W. and Peter Florance and while I thought I had all of the grounds hooked up, it turns out I didn't. Peter said that there's supposed to be a ground for the coolant temp sensor and it grounds pin 5 at the ECU. I didn't have ground at pin 5, so I went digging. The ground for the coolant temperature sensor was hidden from view when I installed the harnesses and I guess, after I jiggled everything around enough checking before installing the new combo relay, it must have made contact with the plate for the duck gasket or something. Once I connected that ground, all of the voltages normalized and the fuel pump only ran when the AFM door was moved, which is correct operation. Couldn't believe it. I figured the car had to start now. Nope. No dice. Well, I figured maybe everything I did fried an ignition module. I did fry an ECU.
Friday morning, I came to the shop with four ignition modules (one had screws replacing the rivets, so I had to figure it was good), my original ignition harness, another distributor and a couple of ballast resistors and went to work. I swapped an ICM to start and no dice. Then I pulled the distributor cap to check for a pulse from the reluctor wheel in the distributor. I was able to rotate it enough to get a good pulse, but I wanted to make sure it was repeatable, so I bumped the starter to move the distributor rotor.
It didn't move.
It didn't move!
I pulled the distributor and it looked like the gear that drives the distributor was embedded in the upper timing cover. Looking further, that wasn't my only problem.
Alex came over and told me to hit the key. Cam gear moved, but the cam didn't. He grabbed a pair of pliers and the cam is seized in the head and it's obviously broken. I don't think punched in the stomach is quite enough to describe how I felt. I couldn't even say anything. I've got so much money and time into this car and I was within sight of my goal to have it in Monterey for the Festorics/O'Fest this year and this happens.
The thought is that the cam seized from lack of lubrication after I shut the engine off. The next time the motor was cranked, that broke the cam. Obviously valves have hit pistons and everything is all screwed up. Of course, it all comes back to an oversight of omitting the pressure relief valve in the oil pump.
I had a duty to tell those who helped me troubleshoot the car that I found the spark issue. I got a lot of support from them and even some ideas of how to overcome this. Some more feasible than others. At this point, it looks like I at least need the whole top of the motor. Ray has an M90 and had been talking about selling it so I asked him about it. It's from a 1980 Euro E24 we parted, so it should have the correct head. He offered it to me suggesting we can settle up later. I had a thought of just cleaning it up and putting it in for now and addressing this later, but you might notice in the photos (if you can see them) that front and rear glass is still not installed along with the dash - very useful for troubleshooting, which is why I wanted a running car before the interior went in. Putting a motor in, then doing all of that in less than a week by myself is a tall order and that's if everything goes smoothly. Nothing has been done to the car since. Alex is waiting to take it apart until we get the motor from Ray. Obviously, everything is going to be inspected, but it's not a situation either of us want to be in and it's all because of an oversight.
I spent the weekend trying to decide what to do regarding the trip to Monterey. Most of my expenses were already paid and the whole thing I had been working on wasn't going to be there, so I really didn't feel like even going. I didn't register for some of the things I wanted to do because of cost simply trying to get the car done and the things I did register for seemed like a waste. I ended up deciding to make the best of it, so I'll bring the B7 Turbo since they're doing something special for Alpina cars this year, so it will be nice to have it there. Not the outcome I was hoping for, but whatever.
Monday morning, I had an appointment with a local shop (Parts Score in North Scottsdale) to get my tires mounted on the refinished BBS RAs and road-force balanced. There was a certain degree of this is a waste of time and money now since the car is broken, but in reality, progress still needs to be made, I had an appointment and the wheels and tires will take up less space when the tires are on the wheels. I ended up choosing Parts Score because I know someone who works there and through him, I found out they are the only shop in the state to have the latest whiz-bang Hunter truly touchless mounting machine and the road-force balancer.
Here we are figuring out that the extra thickness of the RA centers necessitate an alternate securing method. From this photo, you can see that the machine holds the wheel from the hub, unlike conventional machinery. It is guaranteed not to damage a wheel and consequently has an HD camera on board in the event something does happen. They did a great job getting everything done, and even taped one vulnerable area to ensure it wasn't damaged. Road force was good all around. One wheel/tire had a road force rating of 4 and didn't require any weight. I guess it's great news that it is actually the spare. Anyway, that worked out great and I was happy with the work and really the cost was hardly more than having the Discount people mount/balance/scratch the wheels and actually less than the super high end specialty shops that do this. I imagine that this equipment will bring quite a few customers through their doors - not that they're hurting for business.
I don't know when I'll have further updates, but I do hope that maybe by the end of September I could have it done. Hopefully for SoCal Vintage. It's registered for a show in Sedona in a month, but I'm not sure that's enough time. It's not on my schedule right now. I'd offer to help with disassembly/assembly, but I am going to be out of town until the 28th.