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Messages - 4x4_Welder

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General Discussion / Re: Spark engine - making it last?
« on: June 14, 2008, 07:18:21 AM »
That's not retarded, that's advanced.

The best thing would be to set up your cam timing, intake, and exhaust runner length based on a set rpm.  It is best to delay the opening of the intake valve and allow the engine to build a little vacuum in the cylinder so the charge carries more momentum coming in-  Basically, open the valve at about 25-30ºATDC, and close about 5ºABDC.  This combined with a proper length runner will create a sort of supercharging effect.  You can easily tune an engine like this for 110-115% VE, as long as you're going for a fixed RPM. 
I would start with an overhead valve V-twin of a lower HP rating (16-18) and keep the factory compression ratio. 
If you do want a single side-valve engine, go for a Wisconsin or OLD Kohler, and bump the compression up to about 7.5-8:1.  I think they both are about 6.5:1 originally.  This will give you a much more user friendly power curve, and also greatly increase torque.

Everything else / Re: This creek is nagging me for a hydro setup.
« on: April 20, 2008, 07:06:17 PM »
Man, you guys really have me itching to do a system like this.  I was really overthinking my system before, it's really quite simple.  I could make an impeller, run up an externally regulated alternator to produce 36v, and just let it run to keep a 36v battery bank topped off.  It doesn't have to make that much in the way of wattage, since it would run 24/7 aside from maintenance.  Just enough to recharge the batteries while not in use. 
Now I just need to find a place to do this-

Other Slow Speed Diesels / Re: Volvo diesel?
« on: April 13, 2008, 11:03:17 PM »
If this is that good, then maybe I will get it-
My long term goal is to buy a piece of property way off grid, use an efficient diesel generator to charge a battery bank, run the house off inverters or maybe even a 36v system.
I just want to make sure the engine will be up to the task. 

Other Slow Speed Diesels / Re: Volvo diesel?
« on: April 13, 2008, 06:42:02 PM »
I found a few videos on youtube of this style engine- 
Seems to spin a bit faster than a Lister, upwards of 1800-2000rpm, so a bit quicker than I want.
My next diesel will be a low speed Lister or Listeroid, or at the very least that type of engine.

Other Slow Speed Diesels / Volvo diesel?
« on: April 13, 2008, 04:14:39 AM »
I passed on an opportunity today that I may regret later-  I did some work for a guy, and he told me he could either give me cash, or this old engine he had in his shed.  It was a single cylinder Volvo diesel with about a 20" flywheel on it, I think it was liquid cooled, and he said they used to use them in small boats.  Being pretty broke now I took the money, but would it be worthwhile to get this engine later?  I have a few jobs I do for this guy on the side, and I'll be going back there next weekend-

General Discussion / How'd this guy get approved?
« on: March 23, 2008, 10:41:04 PM »
     VIAGRAforumCIALISlev is listed as the newest member?

General Discussion / Re: Serious MPG
« on: March 22, 2008, 05:45:04 AM »
That is well smart.I want one.

And here is a link to the car of the future. ;D

Yes, I want something the metermaid can actually outrun-  in or out of her 3wheeler.
I'm playing around with a diesel electric full size suv, should be good for 30-35mpg, but that's going to be a long time coming.  All existing production tech, just re-arranged a bit. 
The Subaru engines aren't bad, but I'd got with an EA71 1.6l since that thing is so light.  The OHC EA82 is way to complex and failure prone.  Are you using an auto or manual transaxle, though?  I'm assuming you know you can't flip the ring gear around in those like you can in a VW transaxle, so the linkage will be fun.

Everything else / Re: Pole Light ?
« on: March 22, 2008, 05:13:16 AM »
The CFL is under $20, I'm pretty sure.
They sell them at wally world down here, also at Home Depot and Lowe's.

Everything else / Re: Pole Light ?
« on: March 21, 2008, 06:49:04 PM »
You can also now get the mogul-base CFL bulbs.  65w vs 175 for the others, and about the same light output.  Just a bit longer on the startup in the cold.

Everything else / Re: Diesel engine oil for Marine service
« on: March 13, 2008, 04:32:46 AM »
About 1/3 of the way down on this page:

General Discussion / Re: When was the last time you saw an Isetta?
« on: March 12, 2008, 01:34:21 AM »
Multiples of three do sound sweet-
I used to work security at this little shipyard next to the Coast Guard academy in New London, CT, and their security guys drove around in this little Daihatsu cart.  It had a three cylinder engine about 600cc, manual tranny, and the exhaust was long rotted off.  The guy on night shift would pull around the corner in front of my guard shack, and gun that thing in first up the hill.  It must have been turning somewhere north of 6,000rpm the whole way, just screaming and sounding way more potent than it really was-  especially at 3am when everything else is quiet.
The straight six in my truck is pissing me off though-  Five liters, almost no exhaust, and it just doesn't sound throaty.  My wife's old Jeep Cherokee with a 4.0 sounded tougher.  There's a guy here in town with an old Ford station wagon that has a 170 straight six that sounds WAY meaner than my truck.

Everything else / Re: Princess Auto does it again! DMM deal.
« on: March 11, 2008, 04:51:35 AM »
I have a Fluke 77III, had it for ten years now.  China meters are great to have in the car, to tell you whether a fuse is blown, your heater blower is getting power, if the fuel pump won't turn on because of control or it's dead, etc.  Not for anything other than a glorified test light.

When I was in school years ago, an instructor showed this film during the automatic transmissions class. 
It was funny, it was maybe the third or fourth movie in a row and three quarters of the class was asleep.  He started the movie, announced really loud that there would be a test on it, and all of a sudden a number of groggy students were trying to take notes-

If anybody got on of these, and doesn't want their 4" flue cap, let me know.  That would be perfect for my patio burner and look pretty cool.

Got mine today, looks pretty sweet!  It'll fit nicely inside the 25gallon propane cylinder I plan on using as the shell of my heater.  Just above this, there will be a heat exchanger coil from a hot water pressure washer to pick up the heat and send it off into the garage.
Use two radiators.  Use a thermostat control and zone valve to direct heat into the space, and when the zone valve closes, it'll just waste the heat out of the second radiator outdoors.  You want to set your heat level and thermostat temp to keep the waste radiator from costing you too much extra fuel.

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