Choosing Engines for Lawn Mowers: Damaged Cylinder, Piston & Rings - LEAVES, GGP, Loncin, OHV

I have some trash (I think NAC) from OHV.
The engine seems to be more durable, but the fuel supply goes down - the pump died after the first year, problems with the carburetor and stuff - but somehow it comes in opposition to the mega rubbish that B&S is. One season for 15 ares in total and scrap engine.
This year, I said enough and bought a decent electric lawn mower. PLN 500, but 1600W. The power does not differ from the exhaust gas, at the same time it is 5x lighter and incomparably quieter. The only drawback is the need to be careful with the cable.

All of these engines come from, and as the previous speaker writes, the fuel systems are lousy, but cleaning the carburetor is enough, and they fly nicely. I also recommend it.

helena33 wrote:

All these engines come from

add that on flat ground. The slope of the land area 5% disqualify them from use because these engines lose lubrication. It will survive the hill for a while, but if you regularly mow an inclined surface, the engine works without lubrication.

Basically none. From what I was looking for, only Honda offers "dry sumps" in a few models and such mowers can work in almost any position, but the price of such mowers is several thousand zlotys.

When I looked at this topic, I felt like I had been hit in the head.
I always considered the "NAC" engines to be a market crap, moreover, I saw two such mowers in action and both were terribly lame practically from the news, one regularly went out after 5, max 10 minutes and the owner then took a forced break for a pipe or coffee
On the other hand, B&S engines, at least the older ones, have always been associated with solid workmanship. I had an old two-stroke that was over 20 years old, in fact it would still be good if I had to repair it a bit, but the total cost of the repair did not "calculate" anymore.

Seriously, after buying a mower with such an engine (NAC), having such a DIY ability, does it come a bit?


I am slowly looking around about mowers, I currently have two - one with a B&S engine, probably 4.5HP (I bought it for the price of scrap, the previous user was "non-technical"), the second Tecumseh 3.5HP, both are old and quite worn out, with the first I will rather not repair a larger failure. With my money I do not pay for it, so I think about the maximum possibilities for the minimum price.

GrandMasterT wrote:

"NAC" engines

NAC is a brand of garden tools - not an engine manufacturer, which, however, does not change the fact that it is a Chinese carcass, but at least the price is adequate to the quality and not absurd for the B&S badge on the casing, which durability does not even match it.

GrandMasterT wrote:

On the other hand, B&S engines, at least the older ones, have always been associated with solid workmanship

The older ones and only these - yes. The new ones are one, max 2-season equipment and for scrap.

I have a mac mower with a 6.75km ohc engine. after a year of quite intensive use (over 31 ares) I can't say anything bad about this mower. the previous one (solo with a 4.5km b & s engine) lasted 12 years - in total, she would continue to work, but my wife arranged the shaft for a piece of root nac is stronger - you can feel it on large grass apart from changing the oil - I didn't do anything with it - so - I came across decent Chinese food

Piasek80 wrote:

mega rubbish which is B&S. One season for 15 ares in total and a scrap motor [...] I bought a decent electric mower. PLN 500, but 1600W.

Beautiful comment ... because what is 1600W (barely 2 KM) in the face of 3.5KM, 5KM, or 6KM of the combustion B&S OHV ... Is it true that it is a powerhouse?

I will add my opinion. I have been using a 3.5 HP B&S engine in torment for 16 years for about 0.5 ha of my property without any problems (uneven terrain), but this is not OHV, so two years ago I decided to buy something larger in OHV B&S technology and stronger (6 HP) and without discharge (grinding). Since then, the mower got in the ass more than 3.5 horses and she has absolutely no problems with it and I borrow it from my friends as well. It walks evenly and does not go out even under 30 cm of grass, when it takes in one, so why write that B&S is crap? Why mislead people and praise the cheesy Chinese food that works for two years, which is confirmed by the service technicians themselves ... and advise against the purchase without pointing to a different brand. Two strokes are used for sloping terrains, simple, but writing that B&S is trash and pointing to a market mower with the power of a cheap microwave oven comes to kitsch. Do not treat this Buddy as an attack, but as a delineation of the fact that with your opinion you impose the view on the equipment on others.
If the mower refused to cooperate after one season of work, it should have been advertised, because you obviously got a faulty model, but if you bought a used mower with a B&S OHV engine, you must know that this engine works as a workhorse and it is easy to blend money into a worn-out mower a copy, hence probably your misconception ...

I have never bought a stimulant from B&S in my life - always new and only the first one I do not remember in '96 if she survived the torture somehow (from a hectare of fallow land covered with molehills and overgrown with dry quinoa up to 1.5m high, we made a lawn) and for 12 years she walked before the shaft bent and had to be thrown away. A mowed 70 ares in the company + home plots of each employee ... With such an area, before you reach 70 ares, the first 5 have already overgrown We used to buy cut wedges on the shaft with kilograms, because if not a stone, it is mole-like.
Each subsequent one already had half of this area for mowing (currently it is only 12 ares), it was already rubbish, and returning / sending to services that did nothing was pointless. First intervention - supposedly done, after 15 minutes of work the same thing again: no reaction to gas, wrym and wrym i wrym i wrym ..... and drivel in black.
Another intervention - already some patents, springs, wires and undercut gills, lasted until the end of the season, another intervention and a note that the engine is worn out (on 12 ares as flat as a lawn table). Complaint rejected. The cost of the paid repair was estimated at 550 PLN (while for the same money you can buy another brand new with strong B&S).
Well, I was unlucky. But if, in 5 years, the third strong lawn mower B&S repeats the story, what is worse - when "draining" with original oils, filters, crap replaced 2x more often than recommended by the service manual ... while some Chinese freak from the market promotion (bought for PLN 490) is already in the fourth season without any intervention service (every year before the season, only the carburetor is reanimated by a friend of the combs using a piece of an old bicycle inner tube) and a new Trawol engine without counting whether it will work there 10 or 100 hours in a season ... gives me the right to say that B&S is rubbish .
I mow the grass to my knees with a petrol brush, and I do not bully the mower. For every shorter 1600W electric power it is enough to give the comfort of silence (compared to exhaust gas), no smell of burning oil along with unburned gasoline and much less effort when pushing the mower than in the example. 4-5x heavier combustion engine.
Besides, bidding on the mown surface, talking about durability, is in no way reliable because an example of 12 ares of a flat lawn can be mowed for 30 minutes. But the same 12 ares planted with bushes, conifers, etc., where you have to drive around each other, etc., it is mowed for 2 hours and this translates into a much larger number of engine hours worked during the season.
And my opinion is not unique. I have a plot by the lake - the neighbors do the same - most of them are already using electricity, and even stimulants brought from Germany. Plots of 6-10 ares, of which maybe half for mowing, each year he brought a new "from casto, obi or other promotion" for 700-800. 2-3 seasons and scrap. As we once counted over a beer, how much we spent from the beginning a total of "pi x eye" on mowing equipment and its repairs, and there is nothing to mow ... it would be cheaper to hire a gardening company ...
Following on

krocze wrote:

Two-stroke, straight,

yeah ... Now, please, find me a new one at the price of B&S, popular from supermarkets, i.e. PLN 700-800 (not to mention Chinese, which can be 2-3 hundred cheaper)

We present completely different views and how they cannot be reconciled. I claim and will continue to do so that the current B&S products are rubbish for 2-3 seasons, not different from the cheapest no-names which are at least cheap ... Because I give PLN 1600 for a decent 6KM strong mower. B&S series of super-hyper ... with a drive (for 12 ares of lawn) which after the 2nd season, at the end of the warranty, returns from the service with a note that the complaint was dismissed due to "excessive wear and tear" despite my assurances and guarantees that the mower will not be more how it worked 50 hours in total, every 10 hours of work had to change the oil to the original B&S, every 2nd shift, a new air filter, also the original one ... well, what more can you say about these products ?? Scrap - simply Chinese rubbish with an engine made of melted tin spoons and forks.

Piasek80 wrote:

But the same 12 ares planted with bushes, conifers, etc., where you have to drive around each other, etc., it is mowed for 2 hours and this translates into a much larger number of engine hours worked during the season.

My terrain is rich in unevenness, hidden roots, etc., so it fits your example, and mowing 20 ares is about 3 hours quietly, plus 30 ares and all at once, but if 3 B&S mowers broke down for you, apparently I am lucky with them, because even the filter was not replaced from the beginning, and the mower ignited after a winter spent under a roof in the yard for the first time.

Everyone speaks from their own experience, so you are right that our opinions must remain extreme.

Quote:

The slope of the land area 5% disqualify them from use because these engines lose lubrication

What the lawnmower manual says:
"5. Do not mow on slopes greater than 15 °"

Let me remind you that it is 15 degrees! - which gives 26.8% after conversion !!!!!

Piasek80 wrote:

I have never bought a stimulant from B&S in my life - always new and only the first one I do not remember in '96 if she survived the torture somehow (from a hectare of fallow land covered with molehills and overgrown with dry quinoa up to 1.5m high, we made a lawn) and for 12 years she walked before the shaft bent and had to be thrown away. And she mowed 70 ares in the company + home plots of each of the employees ... We used to buy cut wedges on the shaft with kilograms, because if not a stone, it is mole-like.
Each subsequent one already had half of this area for mowing (currently it is only 12 ares), it was already rubbish, and returning / sending to services that did nothing was pointless. The first intervention - supposedly done, after 15 minutes of work the same thing again: no reaction to gas, wrym and wrym i wrym i wrym ..... and drivel in black.
Another intervention - already some patents, springs, wires and undercut gills, lasted until the end of the season, another intervention and a note that the engine is worn out (on 12 ares as flat as a lawn table). Complaint rejected. The cost of the paid repair was estimated at 550 PLN (while for the same money you can buy another brand new with strong B&S).
Well, I was unlucky. But if, in 5 years, the third strong lawn mower B&S repeats the story, what is worse - when "draining" with original oils, filters, crap replaced 2x more often than recommended by the service manual ... while some Chinese freak from the market promotion (bought for PLN 490) is already in the fourth season without any intervention service (every year before the season, only the carburetor is reanimated by a friend of the combs using a piece of an old bicycle inner tube) and a new Trawol engine without counting whether it will work there 10 or 100 hours in a season ... gives me the right to say that B&S is rubbish .
I mow the grass to my knees with a petrol brush, and I do not bully the mower. For every shorter 1600W electric power it is enough to give the comfort of silence (compared to exhaust gas), no smell of burning oil along with unburned gasoline and much less effort when pushing the mower than in the example. 4-5x heavier combustion engine.
Besides, bidding on the mown surface, talking about durability, is in no way reliable because an example of 12 ares of a flat lawn can be mowed for 30 minutes. But the same 12 ares planted with bushes, conifers, etc., where you have to drive around each other, etc., it is mowed for 2 hours and this translates into a much larger number of engine hours worked during the season.
And my opinion is not unique. I have a plot by the lake - the neighbors do the same - most of them are already using electricity, and even stimulants brought from Germany. Plots of 6-10 ares, of which maybe half for mowing, every year he brought a new one "from the casto, obi or other promotion" for 700-800. 2-3 seasons and scrap. As we once counted over a beer, how much we spent from the beginning a total of "pi x eye" on mowing equipment and its repairs, and there is nothing to mow ... it would be cheaper to hire a gardening company ...
Following on

krocze wrote:

Two-stroke, straight,

yeah ... Now, please, find me a new one at the price of B&S, popular from supermarkets, i.e. PLN 700-800 (not to mention Chinese, which can be 2-3 hundred cheaper)

We present completely different views and how they cannot be reconciled. I claim and will continue to do so that the current B&S products are rubbish for 2-3 seasons, not different from the cheapest no-names which are at least cheap ... Because I give PLN 1600 for a decent 6KM strong mower. B&S series of super-hyper ... with a drive (for 12 ares of lawn) which after the 2nd season, at the end of the warranty, returns from the service with a note that the complaint was dismissed due to "excessive wear and tear" despite my assurances and guarantees that the mower will not be more how it worked 50 hours in total, every 10 hours of work had to change the oil to the original B&S, every 2nd shift, a new air filter, also the original one ... well, what more can you say about these products ?? Scrap - simply Chinese rubbish with an engine made of melted tin spoons and forks.

Everything you write about proves that most of the mowers available on the market suck. There is only one thing that puzzles me, why did you stick to Chinese and B&S? Why is no one reviewing other mowers, especially those with Honda engines? I am looking for just such and inexpensive. I know that I have to add in comparison to the shit you write about, but I prefer to wait and add to better equipment. It was close and I would buy a Mac Allister with a drive, but fortunately I read on the Internet that this mower company is crap, it's a pity ... appraisers, and after obtaining the expertise, I will take them to court. It would be best to do it with a few injured people because rudeness does with us what it wants. Life has taught me to fight my daze. I had problems with a complaint about a Severin brand machine that broke down for the first time after less than a month and then every now and then so that it was more in repair than in use. It cost me my nerves, but the stubbornness has paid off. Now I have a Saeco Cappucinatore for two years and I am delighted. I also had a problem with the complaint of the Samsung S4 Smartphone, it was under repair several times under the warranty, they wrote back to me that they did not recognize the complaint, they were unlucky that they came across me. It is necessary to fight against dishonesty and rudeness, do not be afraid of the courts. As a customer, you are on law if you have actually been deceived.

Gentlemen, I do not believe that you mow such large areas with a mower (pushed or powered) and you want to follow the mower. If you actually practice like that, don't be surprised that mowers fail because you 'torture' them. I wonder how many hours you change the oil in the engines (4T).
Somewhere on the forum I read that such mowers are used for areas of 6 - 10 ares and larger areas should be mowed with tractors.

janusz_55 wrote:

I am looking for just such and inexpensive.

How much is it not expensive?

Staszek49 wrote:

Somewhere on the forum I read that such mowers are used for areas of 6 - 10 ares and larger areas should be mowed with tractors.

Buddy, do not read anything more on this forum, because I have not heard any nonsense. I have a plot of land myself. 4200m2, of which 2000-2500m2 for mowing. Believe me, mowing it with a tractor is a tragedy. In the yard itself, I would spend more maneuvering than mowing, let alone the garden and the orchard. With a mower with a diameter of 50 cm, you can go 1500 m2 in an hour.

As for the engines, all mentioned in the topic will last 10 years with proper use.

Have any of you wondered why one importer's mower costs, say, PLN 1000, and the other importer of the same diameter with the same engine and, say, accessories PLN 1500?
A question for you. I have been selling mowers for over 10 years and it goes without saying.