Your last generator Maintenance Run

[90cummins]

90cummins, I see your Yanmar must be using belt drive to turn the generator head. Are you using a 1:1 ratio or are you using a larger pulley on the drive shaft to reduce RPMs?

It is belt driven. The engine is turning 2700+- and the alternator is just shy of 1500 rpm.
One to one was too much for the 10hp yanmar.
2700 is the sweet spot for fuel efficient and the alternator at 1500 will put out 180 amps.
The alternator is a Niehoff N-1603-2 rated 450 amps at 28 volts.
Full output would take 30+ hp.
90cummins

 

[daugen]

It is belt driven. The engine is turning 2700+- and the alternator is just shy of 1500 rpm.
One to one was too much for the 10hp yanmar.
2700 is the sweet spot for fuel efficient and the alternator at 1500 will put out 180 amps.
The alternator is a Niehoff N-1603-2 rated 450 amps at 28 volts.
Full output would take 30+ hp.
90cummins

Once upon a time those were gasoline engine rpms, not diesel. Yanmar changed the whole industry.
I never took my Detroits over 2100 rpm except for testing and my current tractor is a 2300 rpm model, which I think
was the number for a long time for a lot of diesels.
now listen to them spin...
and much more efficiently too.

actually I think my small Massey/Iseki will go to 2800 rpm. I never go that fast with it...

 

[3930dave]

Right now everyone that wants work has it... across the board with the trades in highest demand.

Everyone is busy rebuilding entire communities of fires past and present plus this push to build more housing because this is a crisis.

Some very high profile projects shovel ready with entitlements and permit ready are being offered for sale... only one reason the projected cost to construct is up as much as 40%...

Even one of the old time locksmiths is as busy as he wants to be... I said I thought you were going to retire and he said I keep raising my prices and as busy as ever.

Simple bathroom quotes are 40 to 50k... not moving any walls... insane.

We all know what this means... the market will reset and sink... always happens... Bay Area unemployment is the lowest ever.

OK, so the whole market is crazy, not just d's sister's installer.

So if a relative gave you a lot to build on, most normal working people could not afford to build something.....

Your locksmith story reminds me of Vancouver..... a good friend of mine knows a locksmith who has been trying to retire for years........ every time they push an extension of the Skytrain (know locally as the Crime Train - gotta have those thieves commuting out to work in a "Green" fashion !) further out from Metro Vanc., there is a huge spike in break-ins out in the burbs, and he ends up working 14+ hour days for months......

Rgds, D.

 

[3930dave]

It is belt driven. The engine is turning 2700+- and the alternator is just shy of 1500 rpm.
One to one was too much for the 10hp yanmar.
2700 is the sweet spot for fuel efficient and the alternator at 1500 will put out 180 amps.
The alternator is a Niehoff N-1603-2 rated 450 amps at 28 volts.
Full output would take 30+ hp.
90cummins

Industrial alternator running at less than half rated O/P...... I was going to type "Put that one in your Will", but that statement pretty much applies to all the equipment you've chosen

Rgds, D.

 

[Industrial Toys]

I almost bought one of those Reefer Rail car generators a few years back. Detroit Diesel/GE Alternator running 1200rpm. I think they weighed over a ton! Maybe 15KW or so. I always wondered how bad they were on fuel.

 

[3930dave]

I almost bought one of those Reefer Rail car generators a few years back. Detroit Diesel/GE Alternator running 1200rpm. I think they weighed over a ton! Maybe 15KW or so. I always wondered how bad they were on fuel.

Would make it a bit harder for somebody to walk off with one of those. One of the tribe here may have some fueling experience with those Detroits.

Rgds, D.

 

[LouNY]

You mean one of these,
nice simple easy to maintain units?
2-71 Generators For Sale – Detroit Diesel 2-71 Generators
Of course that 2 stroke Jimmy will sound like it's running a lot faster then 1200 rpm.
I like the old 2 stroke Detroits but they sound like they are turning way faster then they are.

 

[Industrial Toys]

No price on the genny but those other prices are kind of out to lunch.

3 phase would be s stroke against them for home use. I guess they ran 3 phase compressors.

 

[LouNY]

No price on the genny but those other prices are kind of out to lunch.

3 phase would be s stroke against them for home use. I guess they ran 3 phase compressors.

I believe that many of those were 12 lead units which could be reconfigured for single phase,
won't swear to it but I was told so when I was looking at them several years ago.

 

[Industrial Toys]

Another thread went through that. It got way above my pay grade. Sure you can make single phase, just not sure at what loss of capacity.

Those railroad gennies came from an Era when they would (apparently) lay the fueling nozzle down on the ground still discharging fuel, inbetween locomotives. I remember growing up, Diesel was dirt cheap.