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Messages - Doug

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Lister Market Place (things for Sale) / Looking for Honda parts
« on: January 30, 2011, 12:24:04 AM »
Looking for Honda GX200 parts.
No Chinese clones.

Wanted GX160 cylinder heads, and flywheel.
GX200 cranks and reasonably good condition cases that can be rebored.

Ignition coils from any of the GX small blocks ( 120 through 200 )



Hi Bob:
Long time since I read a post from you here.
I see you have been hidding out in the otherpower forum.
How is life treating you these days?

Run a pony relay to something large and industrial with a 120V coil.

I am very fond of CCL products, they made some very robust DC contactors in the days before Silvania bought them and run the line into the ground. Some I serviced quite recently where over 50 years old with plenty of life left in them. Best place to find somethng like that would be a crane company that services large DC cranes. Your going to say to me But Doug I want an AC unit.... These old DC contactors don't care they are tough as nails and will tollerate anything.

Generators / Re: ST5 Intermittent hum
« on: January 12, 2011, 02:40:47 AM »
Yup thats a lot easier to fix/

Good job

Generators / Re: ST5 Intermittent hum
« on: January 11, 2011, 02:18:50 AM »
Ya thats tough without the right test equip.

I was once told by an old timer back inthe day they would use a low wattage light bulb connect the frame of the machine to a white ( common wire ) and touch the leads of the winidngs with hot lead. The light bulb being in series of course.....
If the bulb lit this would indicate there was a ground. ( this was with an extension cord plugged into a wall socket light bulb in series with the hot. get what I mean? )

I however would not sugest you do this for liability reasons ( I don't wana get sued if you screw up )

You more likely have an internal short thats between winding and not a ground. The machine will growl like hell when this happens.
The correct thing to use is a surge comparason tester but they don't drop out of trees.....

Something that can pass a high frequency pulse into the open ended winding and a scope to see the reflected wave might tell you something if you knew before hand what it shoudl have looked like........

I'm talking shit now nothing in the last 3 lines much help.

Resistance bridge would see the difference from one winding to the other but a regular multy meter is probably not sensative enough.

I will think about this more and get back to you

Generators / Re: ST5 Intermittent hum
« on: January 11, 2011, 12:24:23 AM »
Sounds like a short to be honest....

Generators / Re: ST5 differnt voltages blew my bench grinder etc.
« on: January 09, 2011, 06:20:35 PM »
Some confusion comes from colours.

In India black is often " earth "....

A long long time ago in England  black was earth but this changed when they  adopted a lot of the EU and IEC standards.....

Things I want to Buy / Re: fuel tanks
« on: January 08, 2011, 05:28:12 PM »
Two 5 inch gydraulic oil filters....


Capacity 3 litre lol....

( please note I am being funny OK, just a joke guys )

Generators / Re: Drop in engine speed and voltage
« on: January 02, 2011, 02:18:02 PM »
An AC generator ( alternator ) has a high internal impeadence. So if nothing else changes as far as RPM is concerned AND you don;t increase the field current volatge will naturlay droop as load increases.

Thats where having a resistor tap and possibly a cap in your Field circut come into play to help tune and adjust. So you need to get your governer working as well as possible and adjust your field current if needed. Some might even go so far as to use an aftermarket AVR.

Other Slow Speed Diesels / Re: Something I found here
« on: December 27, 2010, 03:33:17 AM »
These chinese Engines can be had for as little as 100 USD here in Canada


They are as I understand everywhere, some even factory built to run on Kerosene.

The basic design is a Honda industrial engine so they are designed strong. I know guys that have reaised the compression on these to the point where they are defecto diesels and need to burn methanol. As a producer gas engine they are a wise choice because they can be modified so cheap and when they wear out there are all kinds of other Chinese clones on snow blowers, generators and utility equipment you can strip for parts.
This is a race engine but as built it would make an excellent producer motor with 12:1 compression and 4 deg advanced timing. On gasoline this can make 15 hp and on producer gas I expect it would make the 3 to 4 HP I mentioned earlier for a good long time or at least untill the ash and tar from the gas ground up the internal parts.

Other Slow Speed Diesels / Re: Something I found here
« on: December 26, 2010, 08:36:21 PM »

Other Slow Speed Diesels / Re: Something I found here
« on: December 26, 2010, 08:33:50 PM »
For what it costs buy a Chinese clone of a GX200 6.5 hp engine.

Use a 14cc head off 5.5 GX160 clone and real Honda GX160 piston ( Use the narrow ring T3 piston and cut down the skirt ).
port and polish. Add a set of Yahmaha 6hp rocker arms ( for more valve lift ) and advance the timing 6 deg.

Now you have a dirt cheap producer gas engine that can make around 3 or 4 hp at 2500 rpm.....

Clone engines are cheap producer gas is hard on them.

Other Slow Speed Diesels / Re: Something I found here
« on: December 25, 2010, 03:39:03 PM »
There is a very simmilar engine still made in Poland we were just discussing before you joined.

Some might be willing to buy one of these but untill you came along there was no one we could talk to about accessing these engines from Central Eroupe.

General Discussion / Re: A little introduction from a noob
« on: December 21, 2010, 10:08:24 PM »
Welcome to the group

General Discussion / Re: a sad delima
« on: December 20, 2010, 10:30:35 PM »
Yes I like Tom's idea.

Perhaps there is a preservation group around that would be interested is saving the rest Sid.

General Discussion / Re: a sad delima
« on: December 20, 2010, 08:23:06 PM »
You have my deapest sympathy Sid.

Not a place I like to be in.....

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