Build generator with Yanmar engine

Scott & Heather · September 16, 2017, 05:41:05 PM

Direct quote of emails with Justin including what he thinks my SAE is which matches my measurements:

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Scott & Heather · September 16, 2017, 05:42:19 PM

Btw derrick my displacement is 784

Those of you who think I can do this I really really would love to. I'm tired of filling my gennies every day. Even if I could buy the head and mount it, I can't find out how to get an electronic governor on this? Anyone have a source?

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richard5933 · September 16, 2017, 08:03:08 PM

I don't know all the particulars about how the engine was setup in the mower, but wasn't there already some type of governor controlling the engine speed? I thought that the hydraulic units always ran at a constant engine speed. A quick online search seemed to show that the injector pump has a governor, unless I was looking at the wrong engine/application. If that's the case then you'd just need a solenoid to pull the throttle open when powered up.

Richard

DoubleEagle · September 16, 2017, 08:05:41 PM

Quote from: Scott & Heather on September 16, 2017, 05:42:19 PM
Btw derrick my displacement is 784

Those of you who think I can do this I really really would love to. I'm tired of filling my gennies every day. Even if I could buy the head and mount it, I can't find out how to get an electronic governor on this? Anyone have a source?

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As I mentioned before, Martin Diesel in Defiance, Ohio knows Yanmar's well, and builds generators, and has parts for old & new.

niles500 · September 16, 2017, 09:25:18 PM

Yes, call Paul at Martin to see if it's possible, their genheads. will be a little expensive, but he may tell about the governor

Scott & Heather · September 17, 2017, 03:35:59 AM

Richard: it does have a throttle (cable driven)

Walter: I think I'll give him a ring for a second opinion. And Ohio is a lot closer to Michigan than Oregon.

Niles: I honestly don't mind paying a few $$$ for the head since the engine is free. I just need to be sure I'm not out so much $$$ that it wasn't just better to buy a fully completed unit instead.

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luvrbus · September 17, 2017, 08:50:02 AM

You don't want build a marginal size generator IMO heat and altitude really takes a toll on a generator,here when we reach 115 degrees a 8kw will not run 2 AC units.Check out the Cummins Onan site they spell it out for you on how and what affects generators

Scott & Heather · September 17, 2017, 08:07:58 PM

Sheesh cliff, if I'm ever stuck in that kind of heat, you can bet I'll be in an RV park asap with 50amp hookup and the meter spinning so fast it melts the metal disc....and for everything else, my generator should work fine. My air cooled twin Honda 3000's have never ever ever failed me in stupid heat and -22 temps...I am not asking my generator to work magic but I'm just conflicted and confused because so many people and my own math and research tell me that I should be able to make this work...I'm calling Martin tomorrow for a second professional opinion.

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luvrbus · September 18, 2017, 06:27:41 AM

Altitude does not affect a gasoline engine like it does a N/A diesel,you are seeing more and more of the little diesels with turbos now,Martin uses a turbo on some models I have saw, hp rating is at sea level so manufactures adjust for altitude loss with more hp,With the best thought out plan a marginal diesel generator is not fun in the heat and high altitude BTDT
good luck

gg04 · September 18, 2017, 09:33:54 AM

Buy the Berg or similar system and add a large gas tank for your Hondas, ours will run for over a week off the factory tank.

Scott & Heather · September 18, 2017, 02:12:32 PM

Cliff, we do see some 7500ft elevation yearly in our travels so this could be a show stopper. GG, I wish I could but the Honda EU3000is extended tank system is actually a bit complicated and expensive...I'm considering it though...

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eagle19952 · September 18, 2017, 09:56:45 PM

Quote from: Scott & Heather on September 18, 2017, 02:12:32 PM
Cliff, we do see some 7500ft elevation yearly in our travels so this could be a show stopper. GG, I wish I could but the Honda EU3000is extended tank system is actually a bit complicated and expensive...I'm considering it though...

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is it possible to adapt 2 or 3 outboard motor tanks....http://www.northerntool.com/shop/tools/product_200478118_200478118

Scott & Heather · September 19, 2017, 05:26:22 AM

Donald, part of the issue with EU3000's is that they don't have a fuel pump. gravity fed. So you have to buy special caps that don't vent, and a special kit that connects to the oil drain or fill I can't remember which and somehow uses oil pressure or vacuum to pump the fuel from the extra tank to the genny. The kit is like $300 and I'd need two of them. Not to mention that I will not get nearly the life span out of these hondas as I will the diesel. So a diesel genny is really in my future, I just thought it could be sooner since I was given this low hour diesel Yanmar.

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B_K · September 19, 2017, 07:39:44 AM

Scott while in the planning building process could you not go ahead and add a turbo to your engine? Seems to me that could solve all issues!

BK

luvrbus · September 19, 2017, 07:44:22 AM

Quote from: B_K on September 19, 2017, 07:39:44 AM
Scott while in the planning building process could you not go ahead and add a turbo to your engine? Seems to me that could solve all issues!
BK

You are seeing more and more of those little diesel generators with turbos now,turbos are popping up now the truck refer units too man they are quite compared to the old units