Author Topic: 1115 build  (Read 6880 times)

mike90045

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Re: 1115 build
« Reply #15 on: March 02, 2019, 09:15:50 PM »
At some point, windage looses from the huge fan in the 20kw head becomes more of a load then your electrical.   I'd only go up 1 size from your engine
 I've a 6/1 which pairs to a 3Kw, but I went with a 5kw, to be able to manage unbalanced loads a bit better, and not run the windings smoking hot.   If I went to a 7.5kw it would still generate the 3kw my engine can produce, but now I'm running a bigger fan, moving more air, and maybe the engine can only pull 2.7kw
 I'm just pulling number out of the sky here, but the alternator cooling fan is NOT a negligible load, I think 1 step up is enough unless you have a special need.

Tanman

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Re: 1115 build
« Reply #16 on: March 03, 2019, 04:26:48 AM »
Any recommendations on ST head suppliers? Also, 38AC where did you get your pulley for the st side of your 1115 setup?
« Last Edit: March 03, 2019, 04:28:38 AM by Tanman »
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

38ac

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Re: 1115 build
« Reply #17 on: March 03, 2019, 01:05:08 PM »
I purchase bits like that on ebay, seems there is always somebody on there with my needs for give away prices. Figure out what diameter you need and how many grooves, and include QD bushing in your search. Then search for a bushing by type, SD,SH etc, and by your shaft size in MM.
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38ac

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Re: 1115 build
« Reply #18 on: March 03, 2019, 01:11:09 PM »
Mike , you may be right a out the fan but my gut tells me different.  The fan on my st15 is it only 2" larger than my st5. I suspect that the power requirement at 1800 RPM is fractional. Again, nothing but my intuition with no facts to back it up.
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Tanman

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Re: 1115 build
« Reply #19 on: April 28, 2019, 11:09:48 PM »
She ran today! After struggling to take the fuel pump apart, I soaked it in diesel for 2 days, put on a thick glove and smashed it against a 2x4. It finally came loose after about 6 hits. I cleaned it, reassembled and the engine ran. The only problem was it wouldn’t turn off or idle down, so I shut off the fuel and it slowly wound down and died. I removed the pump again to try and figure it out but I am stumped. It seems that there is just very little control over the amount of fuel being pumped. I’m not sure if I need to adjust the ring with teeth on the inside of the pump or if it is defective.
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

old seagull man

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Re: 1115 build
« Reply #20 on: April 29, 2019, 07:32:28 AM »
Have you the parts, instruction  manual that came with your engine there is an exploded view of the pump in it.
Thats how i did mine. if not im shore i have a pdf of the 1115 engine somewhere. just let me kn ow.  Ok.

Tanman

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Re: 1115 build
« Reply #21 on: May 11, 2019, 10:40:34 PM »
So I figured out the issue. There are many ways the notched part of the pump with the small teeth all around is fit into the pump, one common way is for the notches to be horizontal, the other is the have them vertical. Mine needed the notches to be vertical and for the plunger (inner piece with the diagonal cut across it) to have the cut section facing up. I had to try it in every common combination to find the correct configuration, because the manual states what order the pump goes together but not which way the plunger is supposed to be rotated to begin with. No problems now  ;D
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

ajaffa1

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Re: 1115 build
« Reply #22 on: May 12, 2019, 12:12:33 AM »
Well done Tanman, the application of a little brain power usually sorts these things out. I recently rebuilt a Bosch injector pump, the original parts all had witness marks to show the correct alignment. The service kit that I purchased from Bosch had none, bugger of a job counting teeth and etc to get it back together right.

Bob

Tanman

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Re: 1115 build
« Reply #23 on: May 13, 2019, 01:14:12 PM »
So now that the engine is running correctly, I'm going to turn my attention to building a frame, acquiring a gen head, and getting other accessories like a pulley. The frame and genny are pretty straight forward. I am a little confused on pulleys. I'm going with the same size and grooves as the the one that came stock on the engine based on Mr. Calder's advice. But are the shafts on the gen heads and the pulley's that go on them pretty universal on size and design? I've never done anything with pulleys and belts besides accessories on cars like alternators and they come with pulleys.
« Last Edit: May 13, 2019, 01:18:15 PM by Tanman »
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

Tanman

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Re: 1115 build
« Reply #24 on: July 19, 2019, 03:12:12 PM »
Question: how bad are the bearings and bushings on these engines, should I replace some of them ahead of time to save me heartake down the road? I just read an article about these self destructing predictably at around 1000 hours do to bearing failures.
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

38ac

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Re: 1115 build
« Reply #25 on: July 19, 2019, 08:46:59 PM »
It is impossible to say that the bearings need replaced or not or at what hours due to the fact there are huge quality differences brand to brand. The bearings that gave the most trouble are the balance shafts.  If you are bothered with it take the engine down and replace them with quality bearings.
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Tanman

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Re: 1115 build
« Reply #26 on: July 19, 2019, 09:28:06 PM »
Thanks 38AC, I must be getting cold feet with the project lol, wondering if the thing is going to explode in my face after some moderate use and if I should have started with a listeroid instead for this project. I think I read somewhere that you had a machine of the same brand? Jiang Dong, if so, how has your experience been with that machine?
« Last Edit: July 19, 2019, 10:55:56 PM by Tanman »
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

38ac

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Re: 1115 build
« Reply #27 on: July 20, 2019, 01:57:24 AM »
The best 195 I ever had my hands on was a Jiang Dong.  Now of you want to lay your hands on the Cadilac that would be the LaiDong 1115. I was lucky enough to get one from John Ferguson before he sold out to Jim Calder, it is in storage while my stand by set is powered by the Changfa clone.
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Tanman

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Re: 1115 build
« Reply #28 on: August 11, 2019, 12:16:54 AM »
The next step in the project has just taken place. I scored an 8kw genuine Stamford for $200 with a frame and v-belt pulley with it!
Yanmar L100-5KW set
Kubota EA300
Chinese 1115-8KW stamford
96 Suburban 6.5 turbo

BruceM

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Re: 1115 build
« Reply #29 on: August 11, 2019, 01:35:13 AM »
Sweet deal, and a predictably good generator head.