Epic video , I enjoyed every moment , I use paper towels to dry the bits off after a clean then oil them . Took some tt bearings the the bearing shop , called in advance yea yea 100% got them , any how 20 miles later still no parts ha ha .
Nice vid👍....i have a almost new sh m28,the sleeve wore away quickly.....i have 2 more new in box,definetly do the vid with the big red to see if they are interchangeable👍
15:30 Bwahaha I use all sorts of slick schmoo as assembly lube. Prefer 3'n'1 oil because it's fairly thin and easy to get but I've used 30w motor oil, ATF, MMO, 2-stroke oil, stale glow fuel in the past and it's all good. Just needs to slick it up long enough for it to draw fresh fuel in and start firing.
The Big Red is the same as the .28Pro or 8port. And yes the piston sleeve and Conroe all fit the 3port block. The porting in the block is the same too. Or at least it was a few years ago. I haven't had an SH in a few years. But I bet nothing has changed as those blocks are of the older variety in their engine line.
I hate winerz too man but I found that using fuel will clean it super fast I use my leftover fuel in my tank after my runs pour it in a bottle to use as motor and carb cleaner later
18:27 interesting side note: ABN engines tend to not have that short lifespan issue in air service. It's only in car service where their lifespans are so drastically short. I almost wonder if running something like YS2020 in an ABN car engine would bring its lifespan back up to where the ABC engines usually go on typical car brews.
@@thebug4046 I've got an ABN OS 40FP that's older than I am and still runs like a swiss watch. There's ZERO pinch left in that thing either, but it just doesn't care. First flip start every time, never deadsticks. I have it on my airboat at the moment because a mild mannered plain bearing 2-stroke is PERFECT for a model where the engine is liable to get dunked. Also, being fairly light for a 40, it makes the boat less tip prone in the first place.
The most stuck engine part i’ve ever encountered was the cam gear cover on my surpass fs-40. What an absolute nightmare. Took hours to get that stupid thing off, the tolerances on it were just insane and the overall design wasn’t the best
Did bearings on an FS48 Surpass that hadn't been opened up since it was new in the 80s. I feel your pain. Prolly why a lot of 4-strokes are floating around ebay with partially broken off mounting ears for the cam covers; people try prying on those bolt holes and just snap em off. I opted to use half a tank of fuel in my butane microtorch on mine. Got it off without damaging it. OS's absolutely mindboggling machining tolerances are amazing when the engines are new but they make working on them 30+ years after the fact a right cunt. I've found...and I did this with my FS48...that a crescent wrench can break them loose quite easily and usually without damage. Turn 'em a little, the castor glue bond breaks, and it's usually NBD to finish removal from that point. Gives me some good appreciation for how Saito does things, too, because that's not a problem you'll ever have with a Saito engine. They use a completely different camshaft drive/retention mechanism. You spin out the four bolts, tap the cam cover with a screwdriver handle, and off it comes.
Hey bro! I got a question. I just bought an old Kyosho V one with a worn out black sirio s12 engine. Do you know if any of the other sleeves and pistons from the other s12 variants will fit? like the XXX, Evo 3,4...etc...?
That's a tall order man. All I can suggest doing is if you can find the part numbers try and search eBay call some hobby shops look around on Google and see what you can come up with you can come up with otherwise you can send it out to RB mods for a pinch for 35$ or find another engine that fits
Great video T-bug! I had a AE. 15 engine which the rear crank bearing exploded and gauged the piston after a gallon of 20% nitro & 12% oil. When should the bearings be periodically replaced?
Oh man that sucks! And for me depending on how often I run the engine. If I run it hard all season then come winter time I pull the engine apart and change em oil everything and get it ready for spring.
@@frank.l181 no worries! Be sure to run a quality bearing like SKF NTN KOYO NSK or a high quality rc brand. Avoid Traxxas bearings or fast Eddie bearings the quality went down hill a few years ago and had a handful fail on me.
I was talking to my nephew about nitro myths, and i wonder if these old wives tales are from engines, materials, and fuels from 50 years ago and they have just stuck.
Could be. But some of them are out of this world stupid. People just making it up as they go to seem like they know what they are talking about. Like how people think they are a Diesel just because they have a glow plug haha
@@thebug4046 hahaha… I ended up thinking, maybe those things were a good idea when we burned beaver piss as fuel, but material science has come a long way.
8:32 What. A. DOOF! If these engines were that delicate they'd never survive the insane speeds and power outputs they give us lolololololol. He'd probably have an aneurysm if he saw how I get some of my engines apart...like the Saito 125GK I resurrected earlier this year which was in a garage fire. That crank was fun to extract. I had to resort to a 1.5lb ball peen hammer with a hardwood plank as a crank protector while the case was clamped in the vise. Had to get positively medieval on it to get it apart. Worth it in the end though. Had to replace the main bearings and the carb because the fire heat ruined them. The carb barrel actually welded itself to the body! I fly that engine now, on a 90 size Waco, and it runs soooooooooooo good! I posted some flight footage recorded by a fellow club member to Glow Nation and have some ground testing/bench testing of that engine on my own channel. I'm currently working on an OS 46FX that was in a crash. Doof would probably explode if he knew I was just gonna JB Weld the carb back on and see what happens.....
I think I remember seeing that engine that was in a fire! And yeah man guy was PISSSED! About the Paper towels lake literally went up one side to me and down the other I thought it was so comical
@@thebug4046 I'm shocked that there was as little damage as there was. I didn't even change the glow plug! Valve springs, piston ring retained their temper, nothing is warped. Sweet running engine. It started on the very first flip when I mounted it up...I had expected it to fuss so I hit it with my starter but I could have hand started it. Doof will just have to sit and spin. We're gettin' engines running again >:D
Great video,,,,,may I suggest that the zoom is to close,,,can only see half of what your doing….BTW…I was pissing North with an east to west wind,,,THAT doesn’t work either,,trust me,,all you get is wet knees……just sayin….
Lol and yeah I didn't realize it at first it's been a minute since I made a video I usually have a taller tripod so I was working with what I had but it will be better next time for sure!
7:54 prolly don't see it as much in car engines because their fuels tend to have much lower castor contents, but I've had plane engines so heavily gacked up that I had to beat the crank out of the case. Heating it did not help one iota.
@@thebug4046 Don't think a coolant spa woulda helped with my 125GK any. That was more rust from a fire's heat. Usually I can get away with microtorching the case and whapping the crank with the handle of a screwdriver though. My old FS48 Surpass fought me a bit. It ws a running engine being torn down due to bearing growl and I think I'd been the first person to hold the crankshaft in their hand since it had been made 30+ years ago. It fought a bit, but after a new set of bearings and a dip in the ultrasonic spa it came back looking pretty much brand f'ing new.
Had NovaRossi P5XL that was like that it took me a week to disassemble it. Sleeve was STUCK and I mean like welded stuck in the block. Was a literal nightmare.
They are both brass but Plated with different metals the brass looking one is chrome plated aka much better then the silver one witch is nickel plated witch is soft and doesn't last long
@@thebug4046 thanks learned something new the nickel sleav one most of them get so hot they lock up and perty much seize up or wear out so fast like a hot dog down a hall way. On a mian hobbies the sell the brass chrome plated sleav for 32$ great upgrade everyone of my sh engine are swapped out ✌️👌👍💯🥂
@@thebug4046 im positive IV seen it. I want to say the hole reason I swapped them out is because of watching your video it's be some time now and I don't have the best momery but I do no your video was what made me realize they were different types thanks for that.✌️👌👍💯🥂
I must have fucked up every engine i have ever touched lol, I just got a exceed mad beast and a tmaxx recintly, been rippin my baja for a couple years and wanted to get back into nitro, aint touched in since the 90s Im pretty sure it the same engine, the pull start is broke so i orded a roto start back plate that has the same bolt pattern, i hope that lil spring that holds the one way shaft in stays sorry for the spelling im from wisconsin, we drink lol
23:55 If there's not so much oil lying around the US is trying to invade I'm not building the engine right! AAhahahha. And yeesh this heat. I haven't been flying very much at all because it's just been so excruciatingly hot that I can't stand out in the sun long enough to do anything! Engines don't care they run fine in it but my body's like 'uuuuh wtf are you doing get your arse back in air con'.
Use nitro fuel to loosen up con rod and other things inside the engine since the nitro will have oil. Brake clean works but it makes everything dry and can cause scoring
At 70$ a gallon we don't waste nitro fuel for cleaning. Brake cleaner won't hurt anything since you oil the moving parts before you put it together. I haven't had any issues in the last 20 years. They even sell nitro engine cleaner witch is the same chemicals no oil in it. I'm sure if it was that bad you would see a lot of failures.
@@antmansrt hahaha I live in the Communist country of Canada. Everything rc is brought in from the USA and because of are now triple carbon tax Everything is triple the cost. It's about 9$+ a gallon for gasoline here. The other day I bought 5L 94 octane ethanol free fuel for my chainsaw that was just about 15$ lol
if you can't even wipe your engine parts with paper towels because (wink wink) fibers are being transferred from the towel to the engine parts.. let me tell ya, every wiping towel (any material) has some kind of microscopic fiber that can transfer over to whatever you're wiping. there i debunked your entire life random guy lol it must be very dirty where you live.
I wipe my engine parts down with paper towels i dont see how paper towels can destroy engine parts probably just trying to get a reaction from you they feed on stuff like that silly trolls
