Diesel Onan Generator DJB-6.0 2Cyl 6KW

McGiever wrote: ↑

Tue. Mar. 15, 2022 11:02 pm

But..using this Zig-Zag and all the leads/windings NO de-rateing!!

Wow, I like that Zig-Zag! Full 6KW, with a neutral.

I accidently noticed this diagram on the back side of the outlet cover. It shows two 240V configurations. No Zig-Zag though. I guess I'm going to have to figure out which wires are T1 through T12.

-Don

McGiever wrote: ↑

Tue. Mar. 15, 2022 10:32 pm

Nope!
Why would you say there must be a neutral there somewhere?
Not everything 240 vac single phase requires any neutral.
It is a 240vac split-phase that has/uses a center-tapped neutral to get 120vac out.

Larry .....you are the man
Did you ever run across Two Phase 5 wire ?

Paulie

Pauliewog wrote: ↑

Wed. Mar. 16, 2022 8:19 pm

Did you ever run across Two Phase 5 wire ?

Have Heard about it and even know of a installation very near to my community for rural water utility using 3 phase pumping but no 3 phase here for miles.

I’m guessing that you have seen it somewhere too!!

StokerDon wrote: ↑

Wed. Mar. 16, 2022 7:29 pm

Wow, I like that Zig-Zag! Full 6KW, with a neutral.

I accidently noticed this diagram on the back side of the outlet cover.
It shows two 240V configurations.

Don, I may of been too hasty in my comment of the FULL 6kW at single phase. It turns out that whenever changing from 3 phase to single phase that you must derate to 2/3rds.
From what I can tell that double delta 240V configuration you discovered on cover plate works same as that zig-zag configuration I shared here yesterday.

You may read here what some smart fellows discussed between the 2 configurations.
https://www.eng-tips.com/viewthread.cfm?qid=434439

WE'RE BACK ON THE ONAN DJB-6.0, FINALLY!!!

Well it's been about a year and a half since we really had to worry about power outages here. The Wicked storms that came through York County the other day with a couple Tornados spared us here. But 2 weeks ago a smaller storm came through and knocked power out for 24 hours. That gave me the incentive to get back on this project. We left off on this project with a leaking fuel line. It's the one that goes between the filters and the high pressure pump. Today I had the hardware store make up a crimped line to replace it. Also replace the fuel filters and oil filter. This has a short stubby pipe to drain the engine oil and made a mess! I got some left over 1/2" pipe out of the basement and made a nice extension with an elbow. This will make it much easier next time. So now it's got new filters, new oil, and fuel lines.

The next thing to figure out is how to wire the 12 wire generator head. I don't remember if I figured this out before and changed the wiring or not.

McGiever wrote: ↑

Wed. Mar. 16, 2022 9:37 pm

From what I can tell that double delta 240V configuration you discovered on cover plate works same as that zig-zag configuration I shared here yesterday.

You may read here what some smart fellows discussed between the 2 configurations.
https://www.eng-tips.com/viewthread.cfm?qid=434439

I checked out the wiring thread today and decided I wanted to do the double delta.

Then I checked what all the wires are currently connected to. As it turns out, it is connected in double delta!

L1 = Leg 1 White wire coming out of the box.
L2 = Leg 2 Black wire coming out of the box.
L0 = Common/Neutral, Green wire coming out of the box. Should be pretty easy to connect this to my 50 Amp welding plug.

If all goes well we should be able to do a first start on this tomorrow!
-Don

Nice to see,Don..!! You are the "Project Wildman"..!!

Hope you going to install an interlock on the breaker box.

We're not that far along yet Grump. Hopefully we'll get to that soon.

Well, Sometimes you eat the Barr, and sometimes the Barr eats you.
Got this thing all ready to fire up. Then fought fuel leaks, Battery issues and Governor linkage problems. Still no Start!
Fuel is getting to the injector pump, but the injector pump isn't pushing fuel to the injectors.

You have to bleed the lines to the cylinders. Diesel is different than gas. You can run a gas pump dry and replace the gas and it will pick up and pump. Diesel doesn't do that. Once it's dry you have to bleed the air out all the way to each cylinder.

waytomany?s wrote: ↑

Sun. Aug. 13, 2023 7:19 am

You have to bleed the lines to the cylinders. Diesel is different than gas. You can run a gas pump dry and replace the gas and it will pick up and pump. Diesel doesn't do that. Once it's dry you have to bleed the air out all the way to each cylinder.

Correct..

waytomany?s wrote: ↑

Sun. Aug. 13, 2023 7:19 am

You have to bleed the lines to the cylinders.

Yeh, got it. The only piece of equipment I have that's not Diesel is my weed whacker.
This one won't bleed for some reason.

I got a helpful comment from one of the Youtubers.
"@airbatica wrote,
If that unit has set for any amount of time, the return elbow fiitting at the top of the injection pump has a check valve that will stick closed. This will cause fuel not to flow to the injectors. Pull that fitting off, clean it with some carburetor cleaner, and it should free up."

I think this is the check valve on top of the pump. I only had a little time to play with it today. I didn't remove the check valve, but I did sqwert some carb cleaner in it.

Maybe we'll get it going next weekend.
-Don

StokerDon wrote: ↑

Sun. Aug. 13, 2023 2:48 pm

Yeh, got it. The only piece of equipment I have that's not Diesel is my weed whacker.
This one won't bleed for some reason.

I got a helpful comment from one of the Youtubers.
"@airbatica wrote,
If that unit has set for any amount of time, the return elbow fiitting at the top of the injection pump has a check valve that will stick closed. This will cause fuel not to flow to the injectors. Pull that fitting off, clean it with some carburetor cleaner, and it should free up."

I think this is the check valve on top of the pump.
IMG_0003.JPG
I only had a little time to play with it today. I didn't remove the check valve, but I did sqwert some carb cleaner in it.
IMG_0001.JPG


Maybe we'll get it going next weekend.
-Don

Dang, I'd love to see a video on a Diesel weed eater.