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Saw a YouTube recently which placed a ChangFa at 100db.  That's too loud I think for using inside a city.

What kind of db levels does a Lister 6-1/12-2/16-2 produce?

I know from my experience with a CS3-1, you can stand at 5m and hold a normal conversion and that engine has no sound proofing/reduction done to it.  It's in an open barn with a straight pipe exhaust.  A Petter 3hp on the other hand, you can hear over the top of your TV even when it's 70m away!

Thank you for taking the time to make your readings.

General Discussion / ST Generator and domesitc appliances
« on: June 18, 2008, 01:56:40 AM »
In the event of a power failure, I'm thinking of getting a full-sized standby generator, namely an CS12-2 with ST-7.5kw head.

Kind of an obvious question, but, is the power generated by the ST generator head of a suitable quality that it can run your typical household appliances?

Namely, everything from water heater elements, heat pump (air conditioning) units, desktop/laptop computers, TV, DVD, those energy saving lights, fluro light tubes, etc?

I've read about flicker and how an Automatic Voltage Regulator (ARV) can fix that - right?

Have years of experience with non-sine wave Inverters which convert from 12V DC to 240V AC, but they produce a wicked hum in some appliances which makes them sound very sick in deed.  But when those same appliances are plugged into the grid, they're silent.

Does an ST generator make appliances hum?


Hi All,

The CS 3/1 needs its compression change-over mechanism chamber cleaned because it's filling up with soot.

Haven't done this before, so could you share with me the steps required to clean this chamber?


Listeroid Engines / Which Listerdoid companies do reply to enquires?
« on: December 04, 2006, 12:26:27 AM »
I've sent an email or two to several Listeroid companies via their respective website enquiry pages.
So far only one has replied.  My questions were simple, some basic engine details, price list and hopefully a shipping cost estimate to my nearest sea port.

Drum roll please to the sole respondent:
 - Mr. Atul Patel from (he even included pictures).

Is it typical for them not to reply?
How have you all managed to purchase engines from them?


Original Lister Cs Engines / Finding parts to restore a 3/1
« on: October 27, 2006, 01:22:15 AM »
Got a 600rpm 3/1 which is in need of some new parts and thus far I haven't found any places which stock them.

This engine was last reconditioned in 1972 when its pump shed got flooded by a river.  Since '95 it's been driving an 80amp car alternator recharging a 12v battery bank.  It's been reliable as an old shoe and clocks around 2500-3500hrs per year.  Worst break downs have been a broken fuel pump governor spring and spilt pin.  Hours clocked pre-'95 are unknown.

Current problem is a serious lack of compression and when slowly cranking you can hear it wheeze in/out (with compression on) through the pitted and worn valves.  In winter it sometimes needs an air intake shot of Ezy-Start to get going.  It's also losing oil out both ends of the crank.

Given its clocked easily 30,000hrs, I doubt new valves and new crank shaft oil seals (assuming this design has them) will be sufficient.  Not sure how worn the gear train inside is due access difficulties.

Have already asked Mr Atul Patel but unfortunately he doesn't have any parts for the 3/1.
Have tried finding another working 3/1 or 3.5/1 in NZ but they're just not on the market place, only high speed units or those out of ships, Hmm.

So my questions are:

1: Who stocks parts for this reliable little work horse?
Please post sufficient contact details and what items they have because I'm located in New Zealand.

2: Given how common the 6/1 is, how many of its internal parts are compatible with the 3/1?

P.S. This engine is located about 20m from the house and you need to strain the ears to pick up its faint boom boom boom noise - lovely! (Runs a straight pipe, no muffler)  Much friendlier than the high speed 3hp lister it replaced which could be still heard over the TV at 80m!

Thank you very much.

Generators / ST Head KVA rating and its voltage.
« on: October 20, 2006, 03:32:50 AM »
Been reading about ST Generator Heads and got a question regarding their rated KVA figure.

All sites quote them running at 110 volts, but when these get changed to 220 volts (as required for NZ), does this have any impact on its KVA rating?

i.e. Is a 10KVA 110volt generator still a 10KVA generator when switched to 220 volts?


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