Monday, November 9, 2009

Degrees of Extraneosity

After a rocky start from sniffles and sneezes and other such symptoms on Friday, we hit the road for Oklahoma, namely the Turner Falls area.

It's very nice up there, nice riding, yada yada...

Sunday morning, I noticed a bit of oil on the ground under the yellow trike. This oil was in a rather irregular patch, as opposed to a nice round spot. I found some fresh oily wetness near the oil cooler hoses, so I presumed that was where the problem was. It wasn't a whole lot of oil and the dipstick reported plenty of oil, so I decided we'd just keep an eye on it for now.

We took off down the meandering path to home. Twenty some-odd miles into the trek, we had cause to stop. It was a little chillier than expected when we left, but not quite so chilly once we were underway, so Gabby needed to shed a layer of clothing. Whilst we were stopped, I checked the leak.

Ummm, there was a LOT of oil all over the engine and exhaust and everything back there.

With a little testing and looking and revving the engine, etc, I determined that the lower tubing on the oil cooler was leaking. I first thought it was leaking from the hose, but then I saw that the cooler tubing itself was bent and leaking from a crack in the tubing.

It was a simple enough matter to remove the cooler and bypass it with one of the hoses. The weather was mild and these engines tend to run cooler in trikes than cars anyway. I didn't even get very dirty doing it.

Fast forward a bit to our late lunch in Ardmore. I noticed as we were approaching Ardmore than there was as strange kind of "flex" feeling to the seat. I knew that it is mounted on 2" X 1/4" flat steel rails and thus had some springiness to it, but this sensation was different and had developed recently just during the ride. When we stopped at a restaurant, I discovered that the "body" of the trike, the blocky structure covering the engine and surrounding the rear seat, would bounce independent of the suspension. I started bouncing it gently and observing where the flex was, fearing that some bump in the road had broken a weld or something equally nasty. I also observed that an existing crack in the left fender had worsened and during this bouncing, I could see why. Once I saw what the problem was, I got that sinking feeling, the one you get when you know what's wrong and that it's your own fault.

Remember back on October 7th, when I was working on replacing the throwout bearing, I said "Then there was the extraneous piece of metal that used to hold up something long gone by bolting it to the engine, but now served only to keep the engine and transaxle loosely connected to one another once all the bolts were removed"?

It turns out that a sloppy weld on a piece that *looks* like its supported elsewhere doesn't necessarily mean the piece is unused. Turns out that it was an only slightly extraneous piece of metal supporting much of the weight of the body of the trike. Add to that a full gas tank, fill up the side boxes and strap on some luggage, and the now-known-to-be-cantilevered body puts too much stress on the 3/4" square tubing frame that is welded here and there somewhat randomly.

Also now apparent was that the bottom of the oil cooler, having been mounted on said bouncy body, was damaged by slamming down on to the relatively immovable engine. Ah, I see said the truly blind man....

So, while munching and playing with Gabby's new Nuvi, I formed a plan to brace the thing up so that the trip home would not result in any permanent damage. It took less than $8 worth of hardware from Lowes and the borrowing of cordless drill services from a Lowes employee who had been putting on some kind of cabinetry demonstration.

I took two 12" long perforated angle pieces and braced between the top engine-transaxle bolts and the cross piece in the body. It's probably more solid now than it's ever been, and these are removable.

We got home without further incident, at least if you don't count our headset batteries going dead and timing that took us by Texas Motor Speedway shortly after the races let out. We lost about an hour in that traffic.

Tuesday, November 3, 2009

Dragon Trike work to get underway tonight

I haven't done an update in a while. Several things to report...

Intermittent rain and other issues kept me from picking up the body until last Thursday. I used a purpose built trailer (the trike itself) to tow the body home. We took some pictures of it before I left Joe's. Since it was still threatening more rain and possible hail, I took it directly to the BTW clubhouse.

There was a BTW Halloween party Saturday night at the clubhouse and everyone was just gushing over the trike. Not without plenty of suggestions, but nobody hated the paint :)

Before I continue with the Dragon Trike, I have a brief Yellow Trike update.

I have mounted (uglyly [... is that a word?]) the VDO speedometer sensor and the speedo works wonderfully now.
It does only one thing that is slightly odd, and I fully understand why it does this. As you are rolling slowly up to a traffic light or other such stop, then suddenly stop, for about a second, it continues to indicate that you're moving at 3mph or whatever. With only 5 magnets to count at 3mph, it expects 0.32 seconds between pulses and after you stop, it has to make sure you're not still rolling before it recalculates your speed to zero.

In any case, speed and distance correlate very well with GPS measurements and I pronounce it done. Well, I will probably make a nice bracket for the sensor and the instrument itself has a springy mount that makes it move a lot on the road, but those are minor issues.

Back to the Dragon.... There are basically 3 things that need to happen for it to be on the road by my short term goal of December 12th.

1. The engine, which hasn't run since I put all the bling on it, needs to run. That includes building and installing the throttle cable. It may also include troubleshooting an air leak, for it had symptoms that I now recognize before I took the engine apart for the afore mentioned blinging.

2. The wiring, which includes all lighting and the new "everything" speedo, needs to be done. Lighting includes finding some way have front signals without drilling the body.

3. The front wheel and especially the front tire are not very safe. The tire is aged and cracked, though it does seem to hold air pretty well. The rim is nearly rusted through in a couple of spots.

4. Yeah, I said three, but I forgot that it needs an inspection, too.

That's what's needed to merely get it ON the road. I really want to see if I can get it running EFI by then. Um, that's 39 days. It's not impossible. What it changes, however, is that EFI adds more engine and wiring work. See the EFI blog for more details on that.

There is a cubic buttload of stuff that also has to be done, preferably before December 12, but I doubt I can get it all that soon. Stuff like upholstery, fenders, footpegs or floorboard, baja cage and hitch, torpedos, navigational deflectors and other such goodies. A few more decorative bits like paint the inside of the wheel spokes and rechrome the handlebars. I suspect wheelie bars will be more of a requirement than an option at some point in the future.

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