Many thanks for all of your suggestions. It's looking likely that there is a faulty oil check valve in the sump which is allowing the oil to fill up in the crankcase from the back tank when the engine is not running. I can't find any parts available for that part of the engine but I will keep researching it.
I had wondered when you removed the lower cylinder why there was so much oil in the crankcase, so am I right in assuming the engine is effectively a dry sump unit with a "built in" oil tank in a similar way to the Royal/Indian Enfield bullet engine?
don't lett anybody tell you how you should do your video's ,just do as you like it ,there is always complaining people on youtube and mostly people that don't make video's ..greetings from holland
well said mate, he does like to know what people think though. i am sure by now he knows he cant please everybody but i bet he does like to see some of us supporting him like you did ;)
Agree, your space your time and effort. To do what you do and not explain along the way would be difficult to do. I have a vision of you doing mime showing the paper specifications and pointing to the rings etc. Please keep up the great work and explanations, I look forward to your videos and continued commentary.
I actually enjoy your narration, it's very informative without trying to be a big personality. Don't ever worry about talking in your videos. Thanks for doing these.
I generally hate it when people talk in restoration videos. But you talk about the project, and explain things. And not all about yourself or about nonsense. And I find your voice calming
As someone who knows nothing I appreciate your talking and explaining things. I can understand why those more knowledgable prefer just to watch you work. I enjoy that with some of the tool restoration channels but being selfish I appreciate your explanations in this instance.
I actually enjoy it. At first it surprised me because when I found this channel all I seen was the one's without him talking but I enjoy him talking about what he is doing. Especially when he he describes what he is fixing to work on.
“Wet sumping of dry sump engine”. Dry sump engines are ones where oil is contained in a seperate oil reservoir (in your case the back tank) rather than in the engine sump. The engine driven oil pump has two sections, one to take oil from the bottom of the oil reservoir and pressure lubricate the bearings and the other is a ‘scavenge’ section that is normally of greater flow capability, that scavenges the oil that has lubed the bearings and made its way down to the sump, back to the top of the oil reservoir. There is normally a simple lightly sprung check valve that opens under slight suction to allow oil from the bottom of the reservoir into the inlet side of the lube oil part of the pump. This valve may be faulty, sometimes debris holds it open thus allowing oil to seep from the tank into the sump through the pump. ie., ‘wet sumping’. British classic motorcycles are notorious for wet sumping. When left standing for more than a couple of weeks, the crankcases accumulate oil. The remedy is to drain the oil that has seeped into the sump, into a clean container prior to starting, this accumulated oil is then poured back into the oil tank. But then I’m sure you have deduced all that, so here endeth the unsolicited sermon....🇦🇺
Absolutely, as soon as he mentioned the drain on the external oil reservoir I was thinking it was leaking out into the crankcase.. either from sitting too long or from a failed seal or something. Either way it seems the dry sump is more likely the culprit here than rings or valve guides. About to watch Part 2 so we'll see if he addresses the sump. 😉
Personally, just my opinion I prefer the commentary. I also appreciate how clearly you explain things. Completely understandable for some of us who aren't so well versed in small engines. So, thank you.
Your mechanical skills notwithstanding, the running narrative you provide offers a necessary context to the work you are performing and authenticates (not that it's needed) your bona fides. Another interesting project....best wishes and be well old mole!
don't worry about complaints, some people are never happy, I do just wonder why they don't just move on and watch another video!! For me your commentary is interesting and invaluable as it helps to understand what your doing and why and how different things affect the engine, it makes learning about how engines work much easier!! Keep up the good work Dagger and thankyou for all the hard work and effort you put into your videos!!
"I want a diesel lawn tractor, but I want it's engine to include that cylinder oil flooding problem that was common on World War I era radial aircraft engines" Ruggerini: Say no more.
I love the dedication that you take simply to keep your hands out of the way! Talk away, anybody willing to make a video this good can do what they want! I love your videos.
Don't listen to the haters! I think the vast majority of us like it best when you are narrating the videos :) We understand a lot more when you are talking.
I have a hunch, as a diesel mechanic. Be sure to check and see if the oil tank on the back of the engine has a check valve in the bottom hose. If it does, replace it. Honda 400EX ATVs have a similar setup. An oil tank that you have to check after you've started the engine and filled it back up. If you don't, it will show empty because some of the oil runs back into the bottom of the crankcase. Just a thought. Looking forward to seeing this thing come back to life with ya. Happy wrenching from me in Southern Illinois, USA to you.
I love your commentary. You are very knowledgeable in your craft. I find the subject matter very interesting. Iv learned a lot about small engine repair from your videos. Thank you!
I have fixed lots of small diesel engines when they are hydro locked. A lot of people think that pouring oil down the air -intake will winterize the engine, but it locks up the engine. All you need to do is take out the injectors and spin the engine over to blow the oil out. Then pour diesel down the intake and spin the engine over until it blows clean. Then reinstall the injectors and start it. It will smoke like crazy until it burns the oil out of the muffler but after that, they run great. It sure saves on gaskets, time, and money. But that wouldn't make for a good video.
Wow , I am so amazed at how technical this video is. I have not one ioda of mechanical ability. However, you have just thought me so much in these few minutes. You have just earned you a new sub . Ty. Can't wait until I see this engine running. Ty
So if you look at my history I almost never comment on a video, but I feel like I needed to type this out. Please keep up with what your doing! Your videos are fantastic and you do an amazing job at narration. While subtitles are nice hearing you explain aloud how something works helps bring a better understanding to the video
Really enjoyed this video. I’m from USA and I have never seen or realized diesel mowers exist. Talking is very welcome for me. Not expert enough to common on oil in cylinders except to say I used to keep my smaller mower stored in winter vertically and it had this problem so my first guess was it was stored on a hill. As to draining oil, I always use a pump suction siphon kit for doing oil changes now. It’s slower, but much cleaner than fussing with drain plugs. I don’t even spread towels at all anymore. Don’t know if they have in UK, although mine is French so it must be in Europe.
i personally like the talking, you explain what you are doing and potentially what is wrong. very informative. I get lost when you dont talk, even if i read the captions. It's just not the same
I can get a riding mower in the USA for $50, or $10 for a push mower at garage sales. I sell them for 400 (100 for a push mower) and offer $10 for a trade in. That's single cylinder gas mowers. So I can make 100 for 4 or 5 hrs of tinkering and about $5 for a gasket and some fuel, oil, etc - it depends.
I like your narration ,its clear , concise and articulate. Very informative collection of videos. Your passion is evident and as a result, lots to learn for all of your subscribers. Thank You .
I don't commonly work on Diesel small engines, but in big diesels, diesel "runaway" occurs frequently when oil finds a path to the combustion chamber. It's a good thing this never happened. Also I should really say that I love the "talkie" versions of your videos most. The silent film ones i find less informative, and I'm not just here to be entertained, I actually pick up something new now and then and I run a lawn mower flipping business (i buy derelicts and refurbish them). Narrated is the way to go. Thank you.
Your narration is really good and makes the videos better if anything. More and more channels are doing the restoration + subtitle only formula, but very few have good narration as well. Almost no one.
Great video your talking is good that's how we learn don't worry about other people there not got the balls to make videos like you thank you for making & sharing your work keep well & safe Regards Steve UK London
Even the cross-hatch pattern in the cylinder was still intact. Aside from the mess, everything looked new in there. This doesn't appear to be a piston/ring/cylinder problem. Overfilled? Stored on a decline? Looking forward to this mystery being solved.
Ive rebuilt a few of those ruggerini diesels and was surprised at the quality of those diesels. Great job, thanks for the videos. Greetings from the states.
Honestly, you have the formula figured out quite perfectly. You do silent/subtitled videos on the projects where that is the most effective/informative/entertaining way of presenting and you narrate on the projects that require a more detailed explanation or an explanation that would be too long or cumbersome to type out (and the viewer to read.)
Point us in the direction of the people who are saying you should stop talking during videos and your TRUE fans will tear them up....keep doing you brother!
This appears to be a dry sump engine design. My humble opinion thinks the problem could be oil seeping back into the crankcase from the oil tank while setting. This would cause the crank case to be overfilled with oil. This would cause the engine to hydro lock on the lower cylinder. Just my thought as I watch you work and I do enjoy your commentary.
My guess as well, especially because there is so little info on the vertical shaft engine - there is no way that much oil could get past the rings unless the crankcase was full of oil I'm pretty sure that some twat way overfilled the oil tank
Probably there´s a check valve to keep this from happening and this valve is faulty. Maybe they used the oil pump valves for that purpose and they don´t work well anymore
You're a very matriculate worker but I beleive you took apart more than needed. Never should be that much oil behind a piston which is why it was hydrolocked.
exactly what I was thinking as well, only reason I can think of for it having an oil tank on the back, and as also already suggested, the one way valve must be worn and leaking oil back into the crankcase.
When I bought my latest house it came with a Westwood t1200 from 1983. I have a robot lawnmower so no need for the t1200, a very over enthusiastic guy bought it from me for £450. It was still running and cutting but you could tell it needed some work. I was just happy to have the garage space.
Your videos are amazing how they are the explanation throughout is brilliant. Thank you for sharing the restorations you do please don’t change anything.
Overfilled or its been stored on its side somehow allowing oil to move into the exhaust and inlet , just a guess? ,anyway hope its a simple fix for you,ATB Matty 😀
I feel like half of the point of this channel is the previous owners not doing a good job of taking care of their machines. Can’t get too mad if they don’t tell you it’s hydrolocked. Probably didn’t even know it was a thing to tell. Not that I’m defending the twit. Just saying. Also never stop talking. You are the best.
Let me just add my voice to the pro commentary group it does add enjoyment to the viewing and helps with understanding the engines. That's why I watch your content. Thanks👍
I really enjoyed your explanations! I like your videos with commentary much better, I like to get to know more about the things you're doing and the reasoning behind it. Keep up the nice videos
In all honesty, i prefer narrated videos. I tend to have these in the background while i working on something, so listening along to whats going on is nicer than reading subtitles. I know lots of people like the restoration in its purity, but I think a mix of both is best.
Last time i looked this was your channel. So you get to run it the way you feel most comfortable so i wouldn't worry too much about what other people say. I say just do it your way and leave it at that.
I enjoy the videos as you have been doing talking and all don’t let anyone tell you how to do your videos you’re fine as you are sir. Very informative very appreciative sir.
Just found your channel. To those who complained about you talking during the video piss off. It looks like the hydro-lock may be caused by a high oil level as shown when you removed the lower cylinder. Oil poured out of the crankcase. If it is high enough it will sit in the cylinder behind the piston it could seep into the combustion chamber if sitting long enough. I am looking forward to the next video and will check out your channel.
Thank you for sharing this engine teardown, I agree with some of other comments that probably overfilled on oil. I suggest to replace rings and seals,gaskets etc. for long life repair. Thank you.
I said it before, and I'll say it again. I prefer narration, or voice over. It reminds me of being in the garage with my grandfather when I was younger, and how he'd explain to me what he was doing
Excelente primera parte de esta reparacion de este cortacésped Westwood, equipado con un motor diesel de dos cilindros refrigerado por aire de Ruggerini. mis saludos y respetos desde Venezuela.
Nice to see the diagnostic process ongoing given you were confident of the piston rings and they turned out to be good. It'll be interesting to see where you go from here.
Really enjoyable video. I enjoy your commentary and you are good at explaining what you are doing. I have never seen any of those diesels here in Ireland and that one sure does need TLC. Great video and thanks for sharing.
