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Tubman

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About Tubman

  • Rank
    Member

Profile Information

  • Gender
    Male
  • Location
    Minnesota
  • Interests
    Hot Rods and old cars, anything old and mechanical
  • My Project Cars
    "T" tub with a 331 Hemi, Vintage dirt modified with a modified 331.

Contact Methods

  • Biography
    Been an early Hemi guy for a long time. Currently running two of them.
  • Occupation
    Retired

Converted

  • Location
    Breezy Point, MN
  • Interests
    Old cars

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  1. Tubman

    Received approval for 1947 plate!!

    A strange thing happened to me. I am in Minnesota and found a nice pair of '51 plates for my car about 25 years ago. I went to the Deputy Registrar, filled out some forms and I was ready to go. I used the plates for 7 or 8 years. One day I went to the mailbox, and there was a letter from the DMV stating that the number on my YOM plates had been re-issued so I could no longer continue using them. Along with the letter was a brand new set of Minnesota Collector Car plates. The one good thing about it, is that they did the whole thing for no charge. I wasn't happy having to remove my nice set of 1951 plates, but at least it didn't cost me anything. Now this has got me thinking; that was at least 15 years ago, and I'll bet the plates issued with my number have been long superseded. I still have the nice 1951 plates, so one of these days, I'm going to take a trip to the Deputy Registrar and see if I can use them again. Thanks for reminding me.
  2. Tubman

    New Tachometer

    I just ran across this thread again and to put a cap on things, my partner and I have finished this project. We have three ways to install a tachometer on 6 volt positive ground vehicles. Here is a pdfdescribing what we have available.I am posting this now as I have one of our original production run type 1 driver box left to sell and would like to gauge any potential demand to see if we should gear up for another run. Tachometer project status.pdf
  3. Tubman

    rear window wiper??

    I have an unused partial kit for a '49 to '51 Ford. It is not complete, but enough is there to see it was vacuum operated.
  4. Tubman

    Optima 6v battery

    I had a 1948 Seagrave fire engine with the 468" Pierce-Arrow sourced V12. It had a hand crank and could be started quite easily with it (after I tuned it up).
  5. Tubman

    47 ply convert $82,000 on EBAY

    Not your average car. https://www.ebay.com/itm/Other/163042253359?hash=item25f6135a2f:g:oUUAAOSwtnBa9QMk. "Resto-Mod" Corvettes sometimes out-price award winning restorations by a bunch these days.
  6. Tubman

    6 volt battery 1947 Plymouth business coupe

    I'll play devil's advocate here and question the use of any random old 6 volt power supply as a long term battery maintainer. The main problem is that they lack the "smarts" of a regular maintainer and don't know when to quit. Several years ago, I went to get my boat out of winter storage and found the battery was no good. It had been boiled dry. It had a Schumacher 1.5 amp maintainer hooked up all winter. As is usually the case., it said on it something to the effect that if you had problems, you should not take it back to the seller, but to return it directly to the manufacturer. Mainly out of curiosity, I packed it up and sent it back to Schumacher. About a month later, I received a new maintainer from them , with a note apologizing for the failed retainer. Since the unit was still putting out the proper voltage when I sent it in, the only logical conclusion is that the limiting logic built into it had failed. If you are going to go this route, at least check the amp ratings of the unit you are contemplating using. I don't know if .65 amp is enough to fry a battery, but it looks like 1.5 amps will do it and I'd rather not take the chance. This is another reason that I run my chargers/maintainer through a cheap timer.
  7. Tubman

    6 volt battery 1947 Plymouth business coupe

    I am on my second Optima in my car. The first lasted 13 years. I have 6 on this one. I use a regular battery maintainer on it with no problems. In my opinion, Optima batteries have single-handily made 6 volt systems a viable alternative for these old cars. There are two things to pay attention to. First, make sure that you buy them from a place that is willing and able to honor the warranty in the slight chance you may have a problem down the road. Second, I have heard that if you keep them hooked up to a charger for indefinite periods, the connectors between the cells (which are supposedly thinner than regular batteries) can corrode through. I have not experienced this myself, but just to be sure, I have my maintainer hooked up to one of those cheap mechanical timers (less than $10 at Target, etc.) and run it only 30 minutes a day. I have found that this is enough to keep the battery "up" and eliminates any chance of damage to the inter-cell connectors. Oh yeah, they are rated at 800 Cold Cranking Amps. Check the rating of your current battery; you may be surprised. The only downside for me is their odd shape, but there are some tricks to help with that, too.
  8. Tubman

    Dwell tachometer 6v pos grd

    Exactly.
  9. Tubman

    Setting timing

    "kencombs" is correct, as long as the advance mechanisms in the distributor are functioning properly. Unfortunately, this is not always the case.
  10. Tubman

    Setting timing

    For the initial timing that would be OK. If you have (or can borrow) a "dial-back" timing light, you should be looking for a total advance (at speed) somewhere in the mid twenties. With a good vacuum advance, 4 -8 more can be added in at cruise (high vacuum conditions). EDIT : I just checked a couple of sources and it seems factory spec for initial advance is 0°, so the 4° to 7° you are quoting may be a bit much. I will defer the final decision to the Mopar experts here.
  11. Tubman

    Setting timing

    There are a few outfits out there with the old Sun machines that specialize in refurbishing and setting up "traditional" ignition systems. One example is "Bubba's Hot Rod Shop" in Indianapolis. Anyone spending several thousand dollars dollars on a new engine for their car would be well advised to send their distributor in for a "tune-up" as well. It's not that expensive. I share your opinion of Pertronix ignitions. There are far too many stories of them dying without notice at the most inconvenient times and in the most inconvenient places. I have never had a points ignition fail without providing plenty of notice. They just start to degrade very slowly. Anyone with an old car should be able to detect this in plenty of time to get home and correct the problem. As to points, there are quality examples available, you just have to know where to look for them. Myself, I have a "thing" for old Mallory "flattop" distributors, and Summit racing still has points for them. The only problem with component availability is with condensers. There are quality conventional condensers available if you know where to look. Unfortunately, the supply of the big brass Mallory "trash can" condensers seems to have completely dried up. Because of that, I am now reproducing them using modern severe-duty film capacitors. If anyone has any interest in them, they can contact me. Here's a couple of examples :
  12. Tubman

    Setting timing

    At the risk of getting too deep into the subject, I believe that it needs to be said that having the correct timing when the engine is at operating speed under load is more important than initial timing. Let's face it, if the car starts and idles, it's probably OK. Cars spend most of their time under power going down the road, and this is where having the correct timing is most important. One of the best things you can do is to use an timing light with an adjustable advance to at least check to see if the advance mechanisms (mechanical and vacuum) are working correctly. Beyond this, the use of a distributor machine (such as a sun unit) allows the advance curve to be checked and tailored to the engine. Done right, the distributor will have the proper initial advance for easy starting and idling and the proper increase in advance at higher RPM's and under load for optimum performance and fuel economy.
  13. Tubman

    Setting timing

    I don't know whether this works with a Pertronix. I'll leave that to others more familiar with them to explain. As to setting the timing with a vacuum gauge. What I do is get the engine running at a decent idle, and then twist the distributor, while watching the gauge.Turn the distributor (advancing it) until the vacuum gauge registers it's highest reading. Then, retard it just a smidge and tighten down the distributor. I always time my engines this way, especially modified ones. When you change the carburetor, compression, cam, or any other component affecting engine performance, you change the basic characteristics of the engine and the factory specs may no longer be valid. The light does get it very close to the factory initial setting which is very close to what the engine needs at low speeds.
  14. Tubman

    Setting timing

    For those of you without timing lights, here's a little trick. Put a test light in series between the distributor and the coil, and turn the engine until the timing marks line up to where the initial timing should be. The bulb will go on when the points close and off when they open. Since the spark is generated when the points open, turn the distributor just until the light goes out. The initial timing should be just about right on.
  15. Tubman

    Watching ebay pays off

    In this vein, how many of you are aware of eBay's "Saved Searches"? I am looking for a couple of things and have "Saved Searches" for them. If someone lists something I am looking for, I get an email the next morning. Last week, I was able to score a Hurst 3-speed "Master Shifter" (the "good one") for $25. You have to do some creative thinking to come up with the proper arguments to snare what you're looking for, but it's served me very well.
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