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Message started by prechermike on 05/31/20 at 04:03:39

Title: Big Thumpers
Post by prechermike on 05/31/20 at 04:03:39

Thought this was kinda cool. Seems like mostly across the pond.

https://www.youtube.com/watch?v=XleSCxUS1Ag

Title: Re: Big Thumpers
Post by justin_o_guy2 on 05/31/20 at 06:48:23

Yeah, that was cool.. And I hadda look up
Hot Bulb engine.
Under heavy loads, those engines can heat the Bulb enough to advance the timing to a place not recommended..
Easy solution,, drip water in the intake,,

Title: Re: Big Thumpers
Post by Serowbot on 05/31/20 at 07:42:14

The guys on the Bison 2000 are tucking in at what appears to be about 10mph... ;D
I don't think that's doing a lot... :-?

Title: Re: Big Thumpers
Post by Dave on 05/31/20 at 17:01:16

5E4147405D5A6B5B6B53414D06340 wrote:

Under heavy loads, those engines can heat the Bulb enough to advance the timing to a place not recommended..
Easy solution,, drip water in the intake,,

The hot bulb engine was very popular early on, as it was very reliable and spark systems were still in their infancy. Engines that pumped oil from wells often ran on the waste natural gas from the well, and the gas ignited very easily with the hot bulb (hot tube).

I have a 12HP Hercules engine that has a carb that can run on both gasoline or kerosene. When running on kerosene the detonation can be a problem under load - so there is a small valve you can adjust to allow some water from the cooling hopper into the intake manifold......it came from the factory that way!

Title: Re: Big Thumpers
Post by justin_o_guy2 on 05/31/20 at 17:16:30

Do you use it for anything or is it just an old something you totally enjoy having? Granted,, those options arent mutually exclusive..

Title: Re: Big Thumpers
Post by suzi-q on 06/02/20 at 12:46:13

makes ours seem hy tec

Title: Re: Big Thumpers
Post by Dave on 06/02/20 at 19:03:24

293630372A2D1C2C1C24363A71430 wrote:

Do you use it for anything or is it just an old something you totally enjoy having?

Just sit around and watch the engine run:

Title: Re: Big Thumpers
Post by Gary_in_NJ on 06/03/20 at 06:05:07

Those are some mechanical wonders.

Dave, a friend of mine has an old hit-n-mis. When he has gatherings at his house the woman go up to the kitchen to talk about the men, and the men gather around the hit-n-mis to see who can start it. Once started, we sit around it and drink good beer. It's glorious.

Title: Re: Big Thumpers
Post by norm92de on 06/03/20 at 06:52:53

No doubt about it Gary, your Zuki is superb! :)

Title: Re: Big Thumpers
Post by Ruttly on 06/03/20 at 11:18:05

Friend of mine has a hit n miss,setup with a ice cream maker