Lindy
9/25/2008
First...a rant. It'll be short...I bought a transponder (Garmin 320) this week. UPS says they delivered it yesterday at 12:23pm. I was home. I didn't get a package. I didn't have a tracking number for it until today when the invoice showed up in the mail. When I checked the tracking number tonight, that's the info I got. I don't have a transponder. I called UPS. They said they're sorry, but there is nothing they can do about it until I call the shipper to have a trace put on the package, and possibly file a claim. I'll do that tomorrow, but one way or another, I'm getting a transponder, or my money back. It may not be anyone's fault that is involved. Maybe someone stole it...then how do they track it? Who knows. I'm feeling sick about it, so I'll stop now.
Tonight I worked on getting the crank ring installed on the case of the engine. First, I clamped the circuit board and bracket in place, and drilled the first hole with a #2 centering bit.
That bit only goes in about an eighth to a quarter of an inch, so then I used a #6 bit to open it up and go in 5/8". Next was to run a 1/4-20 tap in to the hole. I borrowed a cool little socket that is made for the tap bit, and used the ratchet instead of the T handle. Pretty slick! You can see in this picture below very well that the hole being tapped in the case is not centered in the bushing hole. That is the reason the bushing has to come out, otherwise there is no way to drill a straight hole.
After the first hole was tapped, I screwed the bolt in place, and worked my way around on the remaining holes. Here it is in place with all five bolts tightened down.
Front view...
Rear view...
That "0" indicator lines up right on the split line for the case, so it's easy to check that it's installed properly. However, the next step is to measure a couple of things to check the clearance to the flywheel. First, I measured the depth of the flywheel from the surface that meets the prop flange to the surface that the magnets are installed in. I need to get a picture of that, but haven't yet. That measured 1.47". Then you have to measure the distance from the front of the prop flange to the front of the circuit board. The range has to be .030-.060" greater than the 1.47", so It must be between 1.5" and 1.53" to work (and the range must also work with the crank pushed in and pulled out). Too close, and it will rub...to far, and the sensors won't pick up the magnets. My first measurement was 1.53" with the crank pushed in, and 1.54" with it pulled out, so I need to close the gap a bit. One "L" washer (.02" thick) between the case and the bracket will bring the measurement to 1.51" and 1.52". That should do it. I don't have any Loctite or the proper sized lock washers here, so I'll grab some over the weekend, and install this thing or good. Then the flywheel can go on, and I'll move on to something else.
Oh, I did reinstall the bushing with an all steel C-clamp and a socket...worked great!
Where is that damn transponder!!??
1.75 hours