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Breakin oil or additives are needed when replacing camshafts & lifters along with the requirement to run the engine at 1800 rpm or more for 30 minutes or so to ensure proper mating of cam and lifter interface. The installation of new piston rings requires that the engine be run under load to...

That’s good to know about the fuel in Oil problem I’ll keep an eye on that. As you mentioned it is rather easy to rewire if necessary and it is very quiet and compact. The more I test it the more I’m impressed with how it fits my needs. MAs it accumulates hours the easier it is to start with...

I have thought about possibly upgrading to a 48v system which is problematic to charge because of the 24 verses 48v issue. I built a 24v DC charging unit using a Niehoff military 24v alternator rated at 450amps that is powered by a 10hp L100 Yanmar. I was thinking of getting around the 24/48...

MEP 952b fuel consumption test. We had a scheduled power outage so the electric utility could upgrade the power lines so I thought it would be a good excuse for me to perform another more accurate fuel consumption test. In the past when performing a fuel consumption test I measured the quanty of...

Having purchased and repaired 2 of the L70 air-cooled Yanmars to make my own generator I can add some details here. First as was mentioned some of these engines may have been replaced due to the refurbishment requirements and are in fact fine. However the 2 I received had issues. The first one...

No never thought about that besides my consumption is more than covered with just 1 unit. 90cummins

Thought I'd respond to keep this post alive. I bought 2 MEP-952b APU's to support my 24v 4kw backup battery system. My battery bank is rather limited in power consisting of (4) 6v L16RE-b's which gives me 370ah of power at 24v. With proper power management this is sufficient to keep my house...

Mep-952b Test 9/21/2015 I ran my second fuel consumption test today on my MEP-952b APU after making some changes to the governor system. My first test on 7/1/2015 was performed with the generator as I received it which was running at full rated speed which was advertised as being 3000rpm...

I'm don't think he sulfur was intentionally added for lubrication it was found that when it was removed there were injection failures, that's when the lubrication qualities of sulfur were noticed. That's my recollection but I won't bet my money on that though! Perhaps someone here knows the...

By today’s standards the injection pressures of mechanically injected small diesel engines is low. The injection pressure of the Yanmar L70 and L100 is 2850psi. However the injection pressures of today’s electronic diesel cars & trucks is in the vicinity of 30,000 psi but uses an entirely...

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tim29 I understand that the source with the higher voltage set-point will carry the load. And in my case it is my N1603 @ 28.6v. What I'm asking is this; having reviewed the electrical diagrams for the N1603 can you see if it would be possible to adjust the output voltage with a potentiometer...

tim29 Have you looked over the information I posted on the N1603? I ask because I would like the ability to adjust the output voltage between 28.6v and 24v. This is so it will work better with my battery backup system in load sharing. 90cummins

The injection pump (pumps) very little fuel. The line should be full of fuel and when the engine is cranked the injector emits a fine mist. When installing a new pump leave the injector line loose on the injector and crank the engine with the throttle in the fast position until fuel squirts from...

tim292 I need to ask why you need so much power? How many kw's do you need to in your worst case at any given moment? How many Kw's per month do you use? Do you have multiple AC or heating units? Do you have a very large battery bank to charge? I like your concept just looking for details...

Getting back to the theme of my post, how much power (kw’s) do I need? I have found that a 3.5kw generator is sufficient for the majority of my needs with 1 exception; we cannot use the electric dryer @ 5.2kw. I have slowly acquired generators ranging from my small Honda EU2000i to a 25kw PTO...

tim292 Your speed control and custom regulator sounds interesting so I'd like to mention some of my observations during the testing I performed. I performed my testing using a 10hp diesel so capacity is limited. I found that the 1603 voltage holds at steady 28.5v and drops only because current...

I'm interested in the control circuit you described. Will it be a linear increase based on amps/volts or an idle full throttle setup? On my DC sets including the MEP-952b it should decrease the fuel consumption by 50% or better. 90cummins

Niehoff 1603 Performance Data. As requested here is the Niehoff performance data along with drawings for fabrication purposes. Hope you find it as useful as I did. 90cummins

Here are the photos of my 24v backup generator. It has a 24v starter that operates off my battery pack which eliminates a separate battery. It has a key switch for starting and a toggle switch for energizing the generator field and for safety a Blue Seas Dc disconnect switch. There is a recoil...