glow engines are fading away
11-21-2017, 06:04 PM
#127
Funny enough - for how much flack I get about my vendetta with OS crap, there was a post on RCGroups today about a guy with a .46SF-P. One of the OS guys tells him to pull the head and check the liner for peeling. I think it's pretty bad for an OS guy to tell another maybe less suspecting guy to check his liner for peeling before running the engine. No other engine brand has such a reputation that is so widespread.
The mention about Fox earlier - let's be real - Fox only had two things going for them - their tightly fitted iron piston engines and their well fitted ringed piston engines. Their ABC doesn't have as stellar a reputation. I have a compact .40 ABC Asher's the chrome was ground through around a few of the ports to the point brass is showing. I was told not to worry about it, but I consider it a junk engine. No other quality ABC engine I've ever had - from China even - has ever exhibited such a phenomenon. Maybe a good candidate for a modern version of the 'Fox Hurl'.
11-21-2017, 07:17 PM
#129
They have been using substandard bearings for some time. The AX engines have been known to eat bearings. If you want to have trouble free high quality bearings, replace with Swiss made WIB bearings. They are fantastic. My Picco .28 came with WIB bearings and my Novarossi engines have Italian made bearings (Nova has a patent on many of their bearings due to an offset inner race). Ive used numerous cheap Chinese bearings that cost $1 each and haven't had any problems from them. They actually seem to outperform the OEM units they replaced (powerwise from the engine). Heavily loaded and high rpm engines should have a phenolic ball cage though..
11-26-2017, 07:26 AM
#134
Until you have a WIB bearing in your hands, you cannot compare SKF or NTN to them. WIB are superior bearings. Where you will see your bearings show themselves is at a higher rpm. Any cheesy bearing will support 13,000-17,000rpm without much issue.
Funny enough; Ive replaced more NTN, NSK, and SKF bearings in model engines than any other. I find that puzzling. Some engines have bearings that aren’t marked with a COO, so it’s hard to know what brand the oddball ones are.
Funny enough; Ive replaced more NTN, NSK, and SKF bearings in model engines than any other. I find that puzzling. Some engines have bearings that aren’t marked with a COO, so it’s hard to know what brand the oddball ones are.
Last edited by 1QwkSport2.5r; 11-26-2017 at 07:31 AM.
11-26-2017, 06:49 PM
#135
My Feedback: (1)
I really wasn't comparing the SKF & NTN to the WIB, I only posted about installing the SKF because the NTN lasted 4 years with never adding after run oil. yet the non-branded bearing in my first Hyper 50 was fully rusted in less than 2 & 1/2 gallons of fuel (not even a full year of flying), the other non-branded in my 2nd Hyper 50 was fully rusted in less than 1& 1/2 gallons, shame on OS
Jim
Jim
11-27-2017, 08:24 PM
#138
Quality of fuel and after-run maintenance is two variables you as the operator have control of. What you don’t have control of is whether your engine manufacturer uses substandard bearings or other parts in their engines. Being that almost everything is made in China now of questionable quality [control], its anyone’s guess what you’re really getting. Its
like building a house. There’s real-World “premium” and there’s “builder” grade.
like building a house. There’s real-World “premium” and there’s “builder” grade.
11-27-2017, 09:55 PM
#139
I dunno about that, Tim. Sanye has 3 engine lines with the Evolution 2 strokes being their best. But, I have an older ASP 40 that is pretty good quality. Evolutions are made to tight specs and well designed, plus all that I've been around have unusual power for their displacement. Then, there's the junk like you said. One man's junk is another man's treasure and that applies to engines of course. I don't mind the Evolution look but a lot of people think they're ugly and tell me about it at the field. Some people think OS is the best engine no matter what but I feel differently,
Anyway, I've been reading about bearing stories for some 14 years now on RCU, and I keep noticing that it's a random thing when you take everything into account. I read things that members write about how they neglect their engines and have never had a bearing rust. For me, I've only used after run oil once or twice, and the only bearing to rust was my first 2 stroke that never saw a drop of castor. Go figure.
Anyway, I've been reading about bearing stories for some 14 years now on RCU, and I keep noticing that it's a random thing when you take everything into account. I read things that members write about how they neglect their engines and have never had a bearing rust. For me, I've only used after run oil once or twice, and the only bearing to rust was my first 2 stroke that never saw a drop of castor. Go figure.
11-28-2017, 04:07 AM
#140
Yeah, I hear you. There are variables aplenty. Dry climates in the desert will have less to worry about than someone on the coast in California.... Anyway - the Chinese stuff is (I should have said) more hit and miss. ASP is not known for having stellar carbs whereas the rest of their Engines is/are said to be decent.
Speaking of quality... I have a NOS/unmolested COMO .51 ABC SCH r/c engine coming in the mail this week. Glow engines aren’t fading away in my house!
Speaking of quality... I have a NOS/unmolested COMO .51 ABC SCH r/c engine coming in the mail this week. Glow engines aren’t fading away in my house!
Last edited by 1QwkSport2.5r; 11-28-2017 at 04:11 AM.
12-01-2017, 07:51 AM
#141
There's an old thread being started back up on onboard glow power. The guy has a plane using 2 ASP .61's. A guy in the club has one of those that he bought from W8YE. I've seen that engine run and it is more powerful than you would think. I was impressed.
I almost forgot to point out this is the 4 stroke ASP .61.
I almost forgot to point out this is the 4 stroke ASP .61.
Last edited by blw; 12-01-2017 at 07:52 AM. Reason: clarifying engine type
12-01-2017, 09:14 AM
#142
I had a guy on the other forum not believe that an Enya .60 4C could turn a 13x6 APC at 9,900+ rpm. The same phenomenon would likely happen if I told him one of my ST 45ABC Engines turns the same prop at 10,800rpm as a Diesel conversion. Must be something in the water around here... 
12-06-2017, 06:48 AM
#148
Thats what I’ve heard. I’ve wanted to build one, but time is nil right now due to family needs. Being a dad to infant twins and a 4 year old leaves little time in the hobby room.