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BillyBob Work-in-Progress Log |
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WHAT'S NEW is a chronological listing of updates to the BillyBob site. TRUCK LINKS including vendor sites for old parts, custom parts, and tools as well as sites for classic car and truck organizations STORE Operating in association with Amazon.com, books, recordings and tools can be purchased. PLANNING for the restoration including project schedule and cost estimates. TRAVELS WITH BILLYBOB With apologies to Steinbeck, this area of BillyBob's Garage will be used to log the trips BillyBob and I make together. WORK-IN-PROGRESS is the restoration of parts of BillyBob that I can accomplish without a garage. PRE-RESTORATION includes log entries of minor repairs and adventures between time of purchase and the time when I started restoration, a piece at a time. JR'S KORNER JR's Korner is the history of BillyBob before I got him authored by my brother, Wm. C. Kephart. BILLYBOB MAINTENANCE Ever changing detailing, oil change, lube, etc. maintenance routines specifically developed for BillyBob, including required tools, materials and procedures. PARTS SHOP The Parts Shop is a repository of How-To articles. Things that I have done over and over enough times to have developed a procedure. This gives me a checklist and saves brain cells. STEALTH SHOP Urban residence design with large integrated shop and separate living quarters for a relative or renter. You will need the Adobe Acrobat browser plugin to view these wiring diagrams which are in the PDF file format. This format allows zooming and panning. If you don't have this plugin, it can be downloaded and installed (free) from the Adobe site. The button below will take you there. BILLYBOB WIRING DIAGRAM Here's the wiring diagram updated with BillyBob's current state 'cepting the third-party strap-on turn-signal director. STRAP-ON TURN-SIGNAL DIRECTOR/BRAKE LIGHT CIRCUIT This turn signal and brake light circuit diagram shows the current state of the third-party turn-signal director wiring, which will remain in place until I figure out the problems with the OEM turn-signal director. It also shows the OEM headlight switch. |
40. All that glitters
June 27th 2005 While twiddling my thumbs in electrical konfusion, I got two responses from the last log entry regarding disconnecting the battery while the engine is running that I want to put into the record for later recall. The first came from Nate Hall, a real-time mechanic who often helps me with BillyBob. Good morning Larry ; Great stuff as always . A word about testing alternator by disconnecting the battery cables : It's not the _disconnecting_ that can damage the alternator diodes , it's when you _re-connect_ the cable , that forces the alternator to ' spike ' EG : go to maximum output for an instant and that's what pops the diodes so if you remember to only disconnect the _ground_ cable and then , if the engine continues to run , carefully tuck the ground cable down behind the battery where it cannot touch the battery post (doesn't matter if the ground cable touches the frame etc.) and then go shut off the engine before re-connecting it , or use a helper to shut it off whilst you hold the cable in midair , you can safely test the alternator this way and never damage anything . For those of you who are reading this and grumbling " I've been popping battery cables for 20 years to test alternators and never blew a diode" Yes but the chance is there and often one diode blows in the diode triode and reduces the charging rate even though it'll still charge . Lastly , if you just go to Kragen , Shuck's or wherever , (FLAPS) and ask for an '82 Camaro with V-ate engine alternator , you'll get the nifty internal regulator alternator and it'll bolt right into place and you can then toss out that nasty old regulator and Delcotron , forget about your charging troubles forver , all for a measly $35.00 . -Nate I may eventually go the alternator with internal regulator route if my growing pile of Delcrotrons and voltage regulators frustrates me enuf to overcome my stubborn streak that makes me want to make this thing work the way it is. JR responded with an engineering dissertation on the subject but couched in terms even I can follow. Good entry. You can get a voltage transient disconnecting the battery while running because of the energy trapped in the magnetic field around the battery cable assuming there is current flowing into or out of the battery. Current flow is necessary to generate the magnetic field (a review of electro-magnetics is left to the reader). When you interrupt the current the magnetic field around the conductor collapses causing a voltage transient to appear across the wire. This is controlled by the formula: V=L(di/dt) Where L is the inductance of the wire in henries(no relation to Mr. Ford) and di/dt is the time rate of change of current. In the case of a switch the time is governed by how long it takes for the switch contacts to open (somewhere in the neighborhood of 10 milliseconds the 100 milliseconds). The value of L depends on the wire itself and its environment including its proximity to ferrous metal (acts like a magnetic core). You can use Dad's oscilloscope to see the transient by connecting the probe ground (the short wire with an alligator clip) to the battery terminal and the probe to the battery side of the switch. You'll need the single sweep mode and the trigger should be set for slightly more the, say 14 volts. The hole event will be over in a few milliseconds as set the horizontal for 1ms/div. Opening the switch should cause the sweep to appear. You could install a 0.1uf cap across the switch contacts. This will give a path for the current to flow while the magnetic field collapses and thus reduce the amplitude of the transient to a safe level. Regards, Bill Kephart Application Engineer Powerex, Inc. Tho' I probably won't be playing around with the cap he mentions, JR's e-mail serves the purpose of giving me something useful to do with Dad's oscilloscope, which I haven't messed with up to this point since I don't know anything about oscilloscopes. July 2nd 2005 Second month of hurricane season started yesterday. It's hot and muggy with a thirty percent chance of rain. Dragged out the tools and started by putting Renegade's repaired tire back on. Boca Tire had been able to plug it on tuesday.
Pulled the mirror head off and went after it and the bracket arm with chrome polish. Removed the adjuster screws (one at a time so the adjuster didn't shift down in the mirror head), cleaned and polished under them and replaced them with stainless steel #6 x 1/2" round head slotted screws from a fastener assortment purchased from Harbor Freight some time back. The mounting stud was rusting too and after spinnin' my wheels some trying to figure out how to git rid of the rust, I ended up masking off the rest of the mirror head and using a mini radial bristle brush with embedded 36 grit abrasive in my Dremel motor tool. I got these things from Eastwood a couple of years ago. They are about an inch in diameter and they made short work of the rust on the mounting stud. I couldn't find them in the current catalog so I don't know if they're still offered. PRE Paint Prepped the mounting stud and applied a coat of Eastwood's Self-Etching Primer. Started documenting a new exterior trim fasteners group while that was setting up. Finished up the mounting stud with a coat of Eastwood's Detail Silver. While the paint was drying, the exposed edge of the rubber mounting gasket between mirror bracket and body was dressed with protectant on a Q-Tip.
July 4th 2005 Independence Day #229 Yesterday, BillyBob and I went to the 1st Annual NAPA Auto Parts "Super Summer Show" at Crabby Jacks in Deerfield Beach, Florida. It started rainin' hard at 3:30 PM so BillyBob and I pulled out and went home before the awards ceremony. Started out today with another Fort Lauderdale Beach run, this time to warm up Renegade's engine for an oil and filter change. I took the top down on the Jeep and it's been so long that I fergot how. After the oil change, the rest of the day was spent working on BillyBob's windshield - Dug out more of the bad silicone seal and replaced it with new silicone, this time under the gasket where it belongs. July 9th 2005 Dawn broke to squall conditions. Hung around the Krash Pad until it slacked off and I could make my way up to the Krash Lab during a lull. We are in the outer bands of Hurricane Dennis as he makes his way into the gulf. Fortified with my first cigar and cuppa joe, I got the tools out. Then I had to take time out to deal with a network problem in the Krash Lab. A power outage last nite had pushed a nominal UPS over the edge and, as a result, I had a hub out. Thought it was the hub at first. When I figured out it was a UPS, I had to re-route power for the hub and other devices. You've heard of "just-in-time inventory"? I use "out-of-time inventory". I keep very few replacement parts on-site because the technology moves too fast for a small office. If you are blessed with few breakdowns, you are cursed with out-of-date inventory. When something breaks, I make do with scavenged parts from my elephant's graveyard of old equipment until I can get a replacement.
July 10th 2005 Still unsavory weather today but not as bad as yesterday and I am really, really glad I don't live in Mobile where Hurricane Dennis is heading. My prayers are with those people in its path. Took another dawn run to Fort Lauderdale Beach, this time in BettyLou to warm her engine up for a oil change. Then I went back to my rusty door handle push button problem. At the end of yesterday, I put the old door handle back on BillyBob while I dealt with this problem. I can't just put the whole original push button assembly in the re-pop handle because I don't have a key for the original lock. I'm stuck trying to refinish the re-pop pushbutton housing. You know the saying "When you get a new hammer, everything looks like a nail". I went after the push button rust with the 36 grit mini radial bristle brush in my Dremel motor tool again. It did a good job on the mirror mounting stud. It should do a good job here. Next, the push button housing was submerged in a solution of Eastwood's Metal Wash for a half hour and then dried with a hair dryer. The wind had died down pretty much so I decided on a powdercoating attempt. Gave the button housing a Picklex treatment. Then cooked off the chemicals for about twenty minutes. Applied Columbia Coatings Chrome powder and cured for fifteen minutes. It looks like real chrome again! Decided to dispense with the clear topcoat this time. I'll see how well this weathers by itself. Eastwood is now offering a single coat chrome powder and I'm thinkin' about getting some of that stuff.
Finished up by polishing the gas cap and the stainless steel tailgate chain hooks where they were rust stained by friction with the old tailgate and bed. Stainless steel binding screws and barrels arrived from McMaster-Carr last week so I tied up a loose end by replacing the missing cowl vent pivot with the binding screw (assembled with threadlocker this time).
While waiting for the Rust Encapsulator to cure, I busied myself with separating the rusted backing plate from the hood emblem. Dug it out, in pieces, with pliers and gasket scraper. At one point, I fired up the air-powered three inch cutoff wheel but soon abandoned that method because I couldn't exercise enough control. I wuz 'fraid of cutting into the stainless steel of the emblem. If I put a hole in that, I'll be up the creek. Finished off the hood emblem areas with a coat of Rustoleum Dark Hunter Green. That should hold it until I'm ready for stage two work on the hood. Continued then to play around with the hood emblem. Removed what was left of the original blue paint from the "bowtie" recess by rubbing with lacquer thinner. Then I continued to clean up the back of the emblem, first with a brass wire wheel in the angle grinder followed up with the 36 grit mini radial bristle brush in the Dremel motor tool.
July 24th 2005 Good weather and low wind this morning. Dragged out the siphon blaster while it was still relatively cool and blasted the headliner bow. PRE Paint Prepped the bow and gave it a coat of Eastwood's Self-Etching Primer. Turned my attention to the passenger side of the windshield gasket again. I think I have a good bead of silicone under the gasket on this side now. The sheetmetal in this area has taken a beating during the old silicone removal. Time to clean that up a bit. Masked off the windshield and gasket, went over the affected areas with a 3M scuff pad and PRE Paint Prepped it. Gave the exposed areas a coat of Eastwood's Rust Encapsulator and let it cure for a couple of hours. In the meantime, I went on to finish the trim detailing for this cycle. When the Rust Encapsulator was dry, a coat of Dark Hunter Green Rustoleum was applied. Continued with trim work until Murphy interrupted me with the daily rains. After about a hour, the rain got worse - monsoon conditions. That's it for this weekend.
July 31st 2005 Today marks two months of hurricane season under our belts. Four to go. Today I tackle the next step of the wheel restoration. I've been putting this off 'til I worked up the gumption. It involves putting one coat of epoxy primer on the wheel (which has been sitting in the shed since sandblasting and a light coat of rattlecan self-etching primer was applied several weeks ago). Brought the HVLP turbine down from the warehouse on friday. First I got out the super stand and ran a 3M scuff pad over the wheel, afterwhich it was PRE Paint Prepped. Then I played with the paint gun fer 'bout an hour. The only time I've used this thing so far was when I sprayed the upper half of the cab interior when I was doin' the windshield job last year. At the time I cleaned the gun by running lacquer thinner thru it. Not a through job. Today I wanted to install a bigger nozzle since I was spraying primer so, I had to take the gun apart. It wasn't long until I was "lost at sea". I took it apart and put it back together several times and still wasn't happy. The needle didn't seem to be seated when it was assembled. I went thru every adjustment in the manual and least once. Oh well, maybe I do have it together right after all. Set up the turbine and hoses and went on to paint mixing. Wanted the smallest amount since the stuff won't keep and I'm only doing one wheel, one coat. It's a 2:1 mix of Omni MP170 Epoxy Primer to Omni MP175 Hardener. I mixed up three ounces using the mark on the mixing cup. Using Bob Adler's recommendation, I brushed extra primer into the seams between wheel parts before spraying the entire wheel. Then I poured the rest of the mix (thru a strainer) into the paint cup on top of the gun. Small drops began to leak out of the nozzle ~!@#$%^ Curses! There is something amiss.
OK. That's a wrap. We're at the end of the detailing cycle and next weekend will be starting back at the beginning again with the engine compartment. I am planning to put more effort into the wheel restoration project too. At the rate I've been goin' at it so far, it'll take years! An' I'm about ready to do combat with the alternator again.
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You can email me at Issued Wednesday August 3, 2005 Updated Thursday March 8, 2018 copyright © 1996-2018 Larry Robert Kephart all rights reserved |
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