[SEL] RE: Castings/now hot bulb engines

[Brian Watts]

Hi,
We have had a Clutterbuck , Blackstone and our Tangyes  gallop away at
various times, easiest way  to stop a runaway is to just hold open exhaust
rocker arm, (no compression, no ignition,engine stops.)
Brian & David Watts
Melbourne
Australia
(03)97266147
briwatt at optusnet.com.au
Web Site
http://members.optusnet.com.au/~briwatt/
----- Original Message ----- 
From: "Russell Gilbert" <russell at ncable.com.au>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Friday, May 05, 2006 8:55 PM
Subject: Re: [SEL] RE: Castings/now hot bulb engines


> Sorry for the late reply,  I'm not as yet familair with how a hot tube
> engine works but .... don't they require a constant lamp to run??? I guess
> one would just remove the lamp? Blackstone and Austral oil engines can
> maintain the hot box/vapouriser temp when running.
> Russell
>
>
>
>
> At 06:29 PM 29/04/2006 +0800, you wrote:
>>Interesting subject Russell.......would the same problem arise with a
>>three valve engine ? I ask because I have an engine ,make unknown . A lot
>>of the essential bits were missing such as the fuel system . As I have
>>nothing to copy I have to '' invent'' the system . It is a Hot Tube engine
>>with a pecker operating the fuel  or vapour valve and the  fuel oil supply
>>would be constant. One thing that worries me is the fact that the governor
>>is belt driven so there will be no leaving the engine unattended!
>>----- Original Message ----- From: "Russell Gilbert"
>><russell at ncable.com.au>
>>To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
>>Sent: Saturday, April 29, 2006 2:28 PM
>>Subject: Re: [SEL] RE: Castings/now hot bulb engines
>>
>>
>>>
>>>>One little danger with these engines is the fuel valve. As
>>>>the engine governs on the non-opening of this valve prolonged exposure
>>>>of
>>>>the valve spring to heat can lead to the excitement of the engine taking
>>>>off. I have seen this happen with both Australs and Blackstones and it
>>>>is
>>>>heart-stopping.
>>>
>>>Heart stopping is putting it mildly Patrick. This has happened to me with
>>>the very first time of starting my 6.5hp Blacky. There was no warning of
>>>this happening as all the fuel valve assembly looked fine. It had even
>>>been pulled apart, cleaned up and re-assembled. The first few tries my
>>>engine didn't start. I made a new coil for the bottom section of the hot
>>>bulb out of thin sheet metal. once this was done gave it another go. It
>>>made the difference for the engine as it soon fired up. When it first
>>>made a few puffs I had the usual smiles one get when bring one of these
>>>old girls back to life. However the smile soon left as the revs moved up
>>>and with no apparent way to shut the engine down; my smiles quickly went
>>>as one was wondering do I just run; or stay and try to and calm the old
>>>girl down. After shitting myself for a few seconds it was obvious I had
>>>to save the engine. It was my pride and joy old motor etc etc. I had a
>>>friend with me; (btw; this thing was really starting to pick the revs up
>>>big time!) we pulled the fuel line out of the tank thinking that it will
>>>run out quick enough, Wrong, they don't need much to fire. Fuel bowl was
>>>to hot to remove as was other parts. We grabbed some pliers to try hold
>>>the valve shut. No good, the small-ish pliers were to hard to get a
>>>decent hold onto the part. Went for a bigger pair of pliers and luck was
>>>on our side as we managed to get a good grip. The spring on the valve
>>>started to crush a little allowing the pliers to bite in on the valve
>>>better and it slowed down nicely to a holt. One then went and wiped away
>>>the stained undies. Got a few shots of bourbon into the system and left
>>>the engine alone for a little while. I think all this happened about the
>>>time on the SEL we were chatting about exploding flywheels etc about 4
>>>years ago. Well I can smile about it now and talk about my 1000rpm
>>>blacky. From all this I guess could come a question for any oil engine
>>>gurus as to how would they (if there is an easy way) shut down a hot bulb
>>>engine like the Ronnies and blacky's if they ran away like that.
>>>
>>>Russell
>>>
>>>
>>>
>>>Russell Gilbert
>>>Sunny Sunraysia
>>>russell at ncable.com.au
>>>http://community.webshots.com/user/russellsrelics
>>>
>>>_______________________________________________
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>>>SEL at lists.stationary-engine.com
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>>
>>
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>
> Russell Gilbert
> Sunny Sunraysia
> russell at ncable.com.au
> http://community.webshots.com/user/russellsrelics
>
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