Thanks. I've been really busy over the last couple of weeks, but before it all got out of control, I scheduled time with my mechanic to disassemble the engine. I have learned just about everything I know from watching him over the years and he had no issue with me assisting him on the motor. I've never done much other than valve adjustments or pulling the junk head off of the 745i parts car, so time to learn more.
Just a refresher:
He picked it up from me and took it over to the shop a couple weeks ago. I made sure that before I pulled the balancer and other parts, I set the motor at TDC.
Everything went pretty smoothly removing the head:
A keen eye will see this on #5:
I put
maybe 300 miles on this car before it was hit. I don't know how long the head has been like that.
It is a pretty common crack and can easily be repaired, I understand. It's the original head to the car so I'd like to keep it. We will see what the machinist says. He's fixed much worse with great success.
Everything looked pretty okay with the bottom end:
Until I looked at #5:
I have a feeling that whatever happened to that piston is probably related to the crack. Supposedly the PO did a head gasket on the car shortly after he got it according to sleuthing I have done on the M535i Yahoo! group but given how thorough he was with everything else replacing it one at a time, I'm not sure what exactly that entailed. It does not look like the head was resurfaced judging by the dimples.
The good news is that I thought ahead a few years ago and picked up a full set of M90 pistons. The other good news is that they are all in good shape and they also take the same rings as these (1.5mm, 2.5mm, 4mm instead of the 1.5mm, 2.5mm, 3.5mm).
Here are the rod bearings:
#3 has a shiny spot but you cannot feel it. What it looks like is that the oil holes on the crank weren't chamfered well, so that will be done by the machinist.
The main bearings were all in great shape. I didn't get a photo of those because my hands were full of oil, but here's a shot of the crank:
The timing chain, oil pump chain and sprockets are all in nice shape, but will, of course be replaced. The plastic guide rail looks pretty good too for the age and mileage:
Here's the block ready to go to the machinist. It will be magnafluxed and the bores measured, etc. The cross-hatching is still evident on all of the cylinders so we will see what it needs. Once we know that, I'll decide on the route I want to go with the rings.
Those are TSMacNeil's legs there. He happened to swing by as we were getting started and pretty much spent the whole day with us.
The head came apart easily. No trouble with the rocker shafts and putting a straight edge on it, it isn't warped, so that's a good sign. Once it's back, the head will get all new rockers, shafts, eccentrics, etc. The cam is in great shape. Here's the bare head:
I don't have any photos of the process because my hands were covered in oil and then I had to run and pick up a couple of parts for a car they had on the lift. By the time I got back, the cam was out.
This had been discussed before on here but I don't think anyone ever posted photos. The "M90" heads have "M90" in two places on the head. First, under the cam by #6:
and lastly at the front of the head behind the timing cover:
I was a bit surprised about #5, but I was prepared for it not knowing what I was going to be in for with the motor. I'm glad that the issues are minor. It's going to get a lot of new parts so I'm wondering what I'll be in for on this, but in seeing what was going on, I'm obviously glad we took it apart - not to say I was going to leave it alone, since I was sure it needed valve guide seals at a minimum.
In other news...
I have spent pretty much the last three weeks trying to get a hold of the guy who put the headliner in my B7 Turbo. He apparently has developed a phone allergy and it's very frustrating. I've gone by his shop three separate times and cannot get a hold of him. He is affiliated with a restoration shop, so I called them. Besides being told "to read between the lines" and "all I can tell you is that he's really busy," I've made no progress. He does excellent work from what I've seen and unfortunately, I cannot get him to even talk to me to even have a look at my project.
I ordered headliner fabric from BMW. A member on firstfives ordered some for his car and apparently had enough to redo his entire headliner. I ordered qty 2 of the same part number he did figuring I would have this car and the Golf E12 someday needing a headliner and found that I only had enough to cover the main section of it. The dealer ordered 1 more and it was about half was much material. Turns out it is sold by the meter, so I don't know how he got a headliner out of it. Either way, having three meters, it turns out is just enough. I can use the 2m section for the main headliner section and then make the c-pillars out of the other. Unfortunately, it also means I paid about 3x more than I should have for the material.
I picked up another Marineblau-grau carpet from jodystevens and I'm going to use that to make the carpet pieces for the front kick panels and the rear deck carpeting. It is apparently the only way to get new Marineblau carpeting.
I also have to redo my seats again. In July, 2010, I had my seats recovered by Jim's Auto Upholstery using the cloth I sourced through a German enthusiast. Unfortunately, the vinyl that was used to recover the seats was totally wrong. It's closer in color to my recycling bin than what belongs on the seats. Another case of "how much extra do I have to pay to get what I've already paid for?" I was assured by the shop that they could just replace the vinyl with the correct stuff, which I purchased from Global Upholstery. It's an exact match and for all I know, it's the same stuff. I've had a roll of it in my closet since July, 2010. I decided to start looking for other shops who could help me with the seats. I was unhappy with some aspects of the work too. I went by a shop that I've seen some pretty interesting cars at. I brought one of the Recaros and my headliner. They gave me a pretty reasonable price to sew up the headliner using my old one as a pattern. Unfortunately, their installation price was quite steep, though they would come to my house to do it on a weekend, so it might be worth considering. I showed them the seat and that's when I was informed that they did such a shitty job sewing and matching up the corduroy pattern that the cloth could not be reused. He figured there were a few places they could cheat it where it wouldn't be seen but they'd need the little bit I had left to replace a couple of panels entirely. I had never really looked closely at the seats because the vinyl made me sick and I knew they were to be redone. Studying some of the stitch-work on the seats really showed just how poor of a job it was.
I felt like I had been punched in the stomach. I had been budgeting what was needed to finish the car and I thought I had a pretty good handle on things. This is now getting more expensive than I had anticipated. I checked to see what was available on the cloth front. I had ordered 5m last time and it was just enough to do the seats. I got with Ivo and found that the price of the cloth more than doubled since I last purchased it. I don't know why I expected any differently since everything else has doubled, too. Anyway, I was able to order what looks to be the last of it available, so hopefully that will go as planned. I went by a couple more shops in Phoenix based upon what I had seen over the years and also some reviews I've found and I got a couple of quotes of over $3k to redo the seats and $800 to do the headliner (with installation, but they need the car in their shop). That's all just labor. I'm providing the materials. The biggest issue is that with the seats having basically been ruined by idiots, there are no patterns to go off of. I do have a seat back and headrest from the original driver seat that can be used as a pattern and I think I can come up with a rear seat from a yard which would help since the rear seat is not even close to what I gave them. It looks like it belongs in a Corsica.
With the dash restoration, wood restoration, headliner, cloth, vinyl and carpet costs on top of the seats, I'm looking at about $10k just in interior for the car and it will be blue when it's finished. It will also be an E12, too. At this point, I'm still trying to figure out how big of a bullet I want to bite. There's someone that I'm reasonably certain could do a perfect job on the seats, but he has quoted more money than the other quotes I have received. It would be basically a sure thing while I don't have any direct experience with the other shops I've talked to. Upholstery really is as bad as paint and I think you obviously get what you pay for as well. It's depressing.
Oh, and I still have to figure out what I'm going to do for the transmission.