Saturday, September 19, 2009

9/18 4:44pm

That is the exact moment when I defeated my arch nemesis. The one bolt that had kept me mired down on the build has finally been conquered.

Having failed in trying to work around the huge stock gear selector arm on the transmission, I needed to remove one nut to get it to come apart. It was a 13/16" nut that I had been able to take off once before, but that was when the transmission was out of the car and much easier to work with. Unfortunately, I somehow managed to over-tighten it when I put it back on months ago and was left with a terrible problem that could have set me back to the end of April.

To access the nut, I had to drop the transmission oil pan, remove the filter, remove the valve body and a retaining pin. Not fun, but do-able at least. That left me looking at the nut as seen in the center of this blurry picture.



To work on it, I had to lay on my back with the nut about 2 or 3 inches from the tip of my nose. There was no way to get a socket on it. I could barely get a flare nut wrench on it, but only in one location that did not let me get any real leverage and there was only about 1/16" possible movement of the wrench in the best case. I quickly began to round off the nut as it just would not budge. I needed to salvage everything around this nut so I could not do any easy cutting, and I could not get a die grinder or angle grinder into that tight space anyway. I tried heat. I tried special penetrating oil. About the best grip I could get on it was with an angled Crescent pliers. Alas, nothing could get it to loosen.

Eventually, I decided to try to cut off the nut and I bought a cheap rotary tool (dremel) at Harbor Freight. It came with 25 cutoff disks that were small enough (less than an inch) to get in that space. But being about the cheapest thing that HF sells, it was woefully slow at cutting through the steel nut. Hours and hours later, I was able to get 3 good cuts done and it finally loosened enough to break loose with the pliers, and then easily twist off by hand. Here is a picture of the nut itself once it came off.


All told, it took me over 11 and a half hours of really unhappy work, spread out over a month. In the process, I spent even more time and money trying to come up with work arounds. I also ruined the gasket between the valve body and separator plate, so there goes another $50 for that kit. Anyway, I think I will at least be able to start making progress again and doing things that are enjoyable.

Finally, fellow local Hurricane builder Paul Proefrock came over this week. He needed some pictures and measurements for another builder and since my car was still so open, it was easy to get it off of mine. I got a lot of other questions answered by him that will help me proceed.

Sunday, September 13, 2009

Wedding

Sorry, I have nothing to post. I haven't really worked on the car in a couple of weeks. Phil and Helen have been in from California for their wedding. What a wonderful time it all was.

Sunday, August 30, 2009

Stuck

Well, I am very stuck right now, thanks to a nut inside my transmission that simply won't budge.

Last week, Nathan and I testfit the cockpit and the shifter linkage workaround I came up with a while back did not work. It was more than an inch off. So I have decided that I do need to replace the selector arm, but I cannot get it loose.

Here are some pics we took along the way. You can see in the first one that the exhaust headers seem to be okay, clearing the cockpit footbox by an inch or so. In the second one, you can see a wider view of what the car will look like with the cockpit in place.




I think I am going to have to cut the nut off. It is probably okay, in that I don't have to re-use everything in there, but it is extremely tight where that frozen nut is. My regular cut-off wheel on my angle grinder is too big so I may pick up a cheap dremel type rotary tool to cut the nut. The really depressing thing is that even when I do get the new arm in place, the shifter linkage may still be too close to the tub that it will require more re-work. Ugggh!

Thursday, August 20, 2009

Back to work

I spent a few minutes today putting on my headers and their gaskets. I had painted them a few months ago, but they would have been in the way if I had attached them, up until now. Since I want to test fit the cockpit very soon, I wanted them in place. The clearance from the cockpit footbox to the headers can be very small, in some cases less than an inch.

Anyway, it was pretty easy. I had already bought some cheap header bolts that are the correct size, but unpopular with other builders because they tend to loosen too easily. We shall see. I do see that they are a huge pain in the neck to try to tighten once everything is in place. Here is a good picture showing the header in place with the spark wire in place.



You can see one bolt to the right of the plug in place and one hole to the left of the plug with no bolt. It is extremely tight in there and getting a socket may be terribly difficult, especially once the cockpit footbox is in the way.

In the end, I spent about a half an hour on this task, and another hour scouring the internet to double check that they were not upside down. They fit pretty nicely either way, and I would not have been the first builder to make that mistake. It turns out they are fine. Here is a finished picture that has been modified to show up a little better on the computer.



And big thanks to Gil Kleine who came by my house tonight and helped me move the cockpit out to the garage. The Passat is now sleeping outside, so pray for no hail.

Monday, August 17, 2009

No work

I did nothing on the Cobra this past week. Instead, I will post a neat story/video of an FFR getting built by/for a guy with ALS.

Sunday, August 9, 2009

Shifter

I worked a lot on the shifter this week. I picked up a spare rod to try bending to fit better, but that did not work. Eventually, I ended up connecting a straight rod to a new replacement bolt that was longer than the original. This allowed me to move the rod closer to the transmission itself and hopefully clear the fiberglass cockpit tub. I do not know yet if that did the trick as I need another set of hands to test that fit.

Here is a good picture of the shifter mounted on the transmission where you can clearly see the steel rod connecting it to the transmission arm.


And here is another from the driver side showing the shifter itself.


Finally, here is a closeup of my modification to bring the connecting rod more into the location that it would have been in had I been able to use the replacement shifter selector arm from last week. Like the extra nuts being used as spacers?


It does shift, but it is a little stiff. Not exactly sure what to do about that. It is still all just mocked up and will definitely have to be loctited if I decide it is good to go.

I also picked up a tap and die set this week at Harbor Freight. This was part of my messing around with the shifter linkage work, but I also want to use that to make nice threaded holes for bolts that will be for the electrical grounds. I may finish the battery cables and terminate them to grounds this coming week.

Sunday, August 2, 2009

Pictureless progress

I did start work on the shifter. It went smoothly enough, though one hole on the mounting plate seems to have been stripped out of the box. I suppose I could have done it, but I really don't think so. I got the mounting plate on, and I had it located farther to the rear of the car than the one other guy who has used this AOD transmission before. I thought it would look better with the shifter farther back in the cockpit.

It turns out that included in the shifter kit is a new replacement for the transmission selector arm. I decided to try to replace it as the instructions indicated but I could not loosen the old nut holding it on. I had tightened this nut before when I had to flip the selector arm to be pointing up a few weeks ago, and I guess it got too tight. Anyway, there just seems to be no way that the offending nut will ever get loosened. I tried every tool possible to no avail. Penetrating oil did not work. I thought about using heat, but ended up deciding to modify the existing arm to connect to the new shifter linkage. I used my cutoff wheel to remove part of the old arm but left the main part and bushing I needed to work with the new stuff I had. The good news is that it seems to work. The bad news is that when Nathan and I tried to testfit the cockpit, it was going to be in the way of the fiberglass tub. So I will have to re-engineer something else.