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Thanks much for reply! That sounds like good advice to me. I don’t have an engine hoist yet, but will probably just pick one up from Harbor Freight when I am ready. It’s just too cold for me to work outside now that I’m retired. Lol I ordered a fuel bowl assembly that looks like it might fit...

Cool! What a fun job that must have been! I only lived as close to that as Alameda, CA for a little over a year, but I sure enjoyed that area. The weather was always nice there in my opinion anyway. I went back to that area on vacation maybe 10 years ago. Everything had changed since I lived...

Thanks much for great photos! Your repair work looks very professional in my opinion. Thanks to your experience, creative ideas and photos and all the contributions from Mr Rooks and others at this site, I now at least have a repair plan in mind. My fuel bowl valve is leaking too. I found that...

Thanks much Mr Rooks! Those links you posted are just what I needed to see.

Thanks much for photos. That silver canister looks like it might be block heater maybe. Those suggestions you made about cover plate and leaving pump connected to fuel lines sound great. Also the idea you have about using fluorescent dye in IP sump. Do you just use 4 ounces of engine oil for...

Okay. Sounds good to me. I will look for electric lift pump. Do I need to look for some specific pressure rating?

Lol. I agree with you. I never throw anything away either. I seem to find some odd use for them years later.

Thanks much Mr Rooks! From that photo there doesn’t seem to be any o-rings or seals that I would be able to replace in the lift pump. Do you have a method for repairing a leaking lift pump? If so, I would gladly try to do that on mine before going any farther.

Thanks much for all of the details Piper!!! I like the idea of an overflow bottle on the IP sump. You mentioned an "input shaft seal at the timing gear". I think that could very well be my problem also. Is that something you are going to try to replace in your situation? You have mentioned in...

Thanks much for reply. I'm starting to wonder if maybe is a leaking injector as you have mentioned above. Do you know of a way to verify this? Is there a way I can test for leaky injector? Or do I just have to replace one at a time until bad one is found?

As I recall, this injector pump requires oil to be added to the injection pump manually. I think you can probably see the small dipstick on the injector pump in the photo I posted earlier.

Okay I finished the air testing. I completely sealed the outlet side of the lift pump, covered the whole mounting side of the lift pump with thick soapy water and applied 120 pounds of air to the inlet side of lift pump. After 12 attempts with lots of soapy water and lots of air pressure, not...

Thanks much Mr Rooks for reply. I have the 25hp 3Cylinder Laidong engine. I don't believe there is a hose as you have described, but it does look possible to leak fuel from the injection pump into the sump from the place that Piper mentioned. Right now it seems the only way to find out is to...

Okay I had time to finish removing the fuel lines from lift pump today. Sorry for delay. Am hoping for tomorrow to do the air pressure application as you have instructed. I will try to send photo if possible. Thanks much for all of your help!

Okay I finally got around to removing lift pump. I just removed the (3) 10mm nuts from the lift pump flange and the pump came right off. As soon as I loosened those (3) nuts, fluid started pouring out from the gap created by loosening the three 10mm nuts. I assumed that the fluid was diesel...

Okay it looks like only (3) 10mm nuts holding the lift pump in place. I will remove those (3) nuts and attempt to separate the lift pump from the injector pump. I will remove both inlet and outlet fuel lines from lift pump. Then block fuel outlet side of lift pump and apply air pressure to fuel...

I can drain the crankcase and change the oil and filter and the engine will run great for maybe a week or so depending on how much I use it. But if I check the oil before each use, I can see the gradual rise in crankcase level by the marks on the dipstick. But I really don't know if the leakage...

I did have a bad injector once quite a few years ago which I had to replace. But that bad injector caused noticeable misfiring. But now this engine doesn't seem to misfire at all. The problem is that eventually the diesel fuel overfills the crankcase and the engine starts pumping out diesel fuel...

Thanks much to both of you for kind replies! I will try to attach photos here if I can.

Hello. I have a 254 Chinese tractor with 3 cyl. LaiDong engine. The crank case keeps getting filled with diesel fuel somehow. I'm guessing the fuel is getting through from the injector pump maybe? Are there perhaps some kind of seals in the pump that I could change? Or a leaking gasket maybe? If...

I have 254 Chinese tractor similar to Nortrac. I want to drain and refill all Trans-hydraulic fluids. So far I have found and removed 3 drain plugs (not the engine oil drain plug). In total, I have drained out about 5 gallons of old Trans-Hydraulic fluid. 1) One drain plug directly below...

Thanks much for reply Tm!! I bought 5 gallons of J20D because someone said it was a bit better in colder climates where I live.

Thanks much for reply number two!

Have a small JD 870 and a 254 Chinese tractor. Both manuals say to use same oil for transmission and hydraulics. JD says use Hy-Gard for everything. Chinese tractor manual recommends N100D for both transmission and hydraulic. I know what Hy-Gard is but not what Chinese call N100D oil is. Can you...

I have a 2007 Luzhong 254 with ladong engine. I also have a new engine still in the crate. I have stage 4 cancer and wish to change out that old engine while I can still get around. I think the Luzhong is similar to the Nortrac tractors. Does anyone here know if I can just lift the engine off of...

Hello and good day I have a Luzhong 254. Was wondering if possible to purchase a new front end loader that would fit this little tractor. The old one is just too difficult to find parts that fit. (mainly hydraulic hoses) Thanks

Hello and good day My alternator doesn't seem to be working correctly. The voltmeter doesn't always show 14 volts all the time like it used to. Now it only shows 14 volts at high RPM. At low RPM, its at about 8 volts. Is that a sign of bad alternator or bad battery? Thanks

Hello and good day The manual for my Lu Zhong 254 says to use N100D oil for everything. I have manual transmission. What oil(s) do you all use for transmission and lifter? Also, can anyone please tell me if the the transmission and rear axle use the same drain plug? Thanks for your time

Looking for air filter element for LuZhong 254, 25hp La Dong Engine. Also fuel filter for same engine.

Anybody have one for sale? Could also use a fuel filter for the 3 cylinder La Dong engine.

Hello and good day. I have a Luzhong 254 tractor with 3 cylinder Laidong diesel engine. Am trying to find a replacement air cleaner element. The dimensions are 5 and 1/8 inches diameter by 7 and 1/8 inches long including the built in gasket. Does anyone know where to purchase this filter on...

Does anyone know where to get one?

I measured with a caliper and got these numbers.... Small ring: OD = 19.7 mm. ID = 13.7 mm. Large ring: OD = 30.4 mm ID = 21 mm. I will try to attach photo. My hydraulic fittings are all metric sizes. Can't find them anywhere around here. Thanks for your time.

Hello and good day. I have a Lu Zhong 254 with an unknown brand FEL. All the hydraulic fittings on the FEL use a metal bonded seal on the banjo type fittings and everywhere else. The Lai Dong engine oil pan even uses this type of seal on the drain plug. I cannot find these seals anywhere. Can...