April 2007
Well, Spring is here in Chicago ($@#$%!@, FINALLY!!) and
before 5er Fest 2007, I had quite a few things on the to-do list that had to
get taken care of. First of all, I needed to put the fuel tank back in the
car after cleaning it up, sealing it, and painting it according to instructions
found on Keith Kreeger's website, my2002tii.com. Here is the quick
synopsis of what I did.
To start, I removed the fuel tank from the car and I was able to see that the BMW part # sticker
was still visible by the filler neck. Although heavily soiled and degraded,
I could make out the last few numbers of the part # and verified them on the
parts CD. The reason? Because the E12 M535i, as a euro car, had a 70 liter
fuel tank. US-spec E12's had a 63 liter tank. The previous owner of my car
was not always diligent about replacment parts with the correct oem versions,
and he had told me about replacing the fuel tank in the car before I bought it.
So I assumed that he had taken the easy route and put in a US-spec E12 fuel
tank. This is, thankfully, not the case.
The fuel tank was actually in pretty good shape which also confirmed it had
replaced the original one in the car. But this project was about making it
even better. The first thing I did after draining all the gas was to clean
it up and apply a coating of POR-15 to the outside of the tank. I used the
clear variety. The reason for this is not just rust-proofing, but also for
the added strength that POR-15 provides. The fuel filler neck on these
tanks can break or split open and the POR-15 should help prevent that from
occuring. After this I found a competent radiator shop to boil out the
tank to remove any impurities inside. Again, this is all following advice
given on Keith's 2002 tii restoration web page. The radiator shop's process
did remove some of the POR-15 from the outside, so I put on another coat.
The more the better I suppose.
The next step was using the POR-15 tanksealer that I bought which involves
dumping it in the tank, sloshing it around many, many times, and then trying
to drain the excess out. It's a lot of work. It took several days for
this to dry inside the tank, but it left a nice, silver finish inside the
tank that should be free of any rust starting. Then I purchased a can of
3M Rubberized Undercoating paint and applied this to the underside half of
the fuel tank. The top half got some 3M black paint to make it more
presentable. The results are shown in the pictures.
After the fuel tank was put back in the car (with a few things replaced
as long as we're in there, including a new fuel pump, new exhaust shield
by the fuel tank and rear muffler, new gas cap, and new rubber filler neck
surround piece inside the fuel door), I got going on a few other items.
I installed the 220kph speedometer that I had redone by Palo Alto Speedometer.
It was set to the kph equivalent of the mileage the car had on the
odometer it came with. The 220kph version was used since the
1980 E12's had this, and the 1981's had a 240kph speedo for some reason.
I also installed a new transmission mount that I'd been meaning to do,
new plug wires from BMP Design, and installation of an I-cut-it-to-fit new hood
pad also by BMP Design. Finally, I changed the oil for the first time
since the engine rebuild (I changed it 250 miles or so after the rebuild,
but I had not done it since then, about 2K miles worth).
There are still a few items on the list. The car needs an alignment because
the inside front tires are already worn out and I'm not running *that*
much negative camber. Also, before the alignment, I need to finish cutting
the last 1/4 coil off my Racing Dynamics front springs. I cut 3/4 of a
coil off and then with help from Dave Rutkowski, realized that the
suspension geometry was off because of the spring perch. So I still need
to get around to doing this, but the car rides great already!
I'm so glad I ditched the Alpina springs. The handling in the front of
the car sucked; it was floaty, underdamped, and sat way too high. Right
now with the Racing Dynamics springs I sourced after selling the Alpina
springs, the ride is very taught and the car is LOW. Once
I get the last part of the springs cut in the front, I'll re-attach the
front sway bar links (yeah, I've been running without it), and then
get some new tires for the front and rear of the car prior to an alignment
to get it all straightened out.
I absolutely have to take care of the oil leak
from the engine rebuild by the timing chain covers. I am SO SICK of the
car leaking oil from there and I need to bite the bullet to take this
apart and get it fixed. It's tough to get motivated also because the
car is fast and a blast to drive, but then has this damn oil leak.
Today, the 15th of April, I had the car out quite a bit and took my son
Declan for a ride in it (in his child seat of course). Before our ride, while he was
napping, I polished the wheels to remove oxidation and grime from sitting
in the garage all winter. I also fixed a fuel leak from the top of the
tank inside the trunk where the sending unit wasn't tight against the
fuel tank body. The picture of the can of polish
is to show people what I use to polish my BBS RS wheels. It was
recommended by Zane Coker (turbo E12 friend of mine, famous in the
older BMW circles) as the best stuff for polishing wheels. And he's
right. It's a huge PITA to polish them, but this stuff works wonders.
Finally, besides the lowered ride height in the front, some may notice that
the outside mirrors are now black. I had received a new-old-stock passenger
side mirror (so it was black, as they came from the factory) and I needed
a driver side one to match. The problem was the new-old-stock one was
perfect and a used driver side mirror was usually faded from the sun. So
I had to get a new mirror to match but the result is worth it since the
mirrors for all E12 M535i's should be black. Mine were white since they
were painted at one point in the car's life during a repaint.