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Model Forum / Radio Controlled / Land Models / August 2006Hi, new to rc world :)
Hi Guys Im new to the rc world, living in australia :). in about a month ill be buying a team losi lst2 but until then i have been given a gv (great vigour) predator to play with, its a older car with a os force .15 engine which aparently still runs. Im having a few problems which i would appreciate some help with. I cant find answers to these anywhere The condition of the gv car was pretty good almost everything works but the servos are broken, no breaks and the clutch bell assembly was missing. The throttle servo was removed so i dont know how to reassemble it, i have a new servo and a bit of wire with a spring on it (not sure what its called) i have mounted the servo but having great dificulty getting this bit of wire lined up so the throttle can be opened fully and closed, with a bit of fiddling i got it mounted so it would fully close but only open to about 30% are there some tricks with doing it? I have stacks of questions but ill start with working this out, thanks > Hi Guys > > Im new to the rc world, living in australia :). Welcome - is your wallet ready ;-) ? > in about a month ill be > buying a team losi lst2 Good choice, I've never actually used one, but I'm told they're incredibly durable, and the engines are nice and easy to use. Also, best standard radio gear that comes with a truck. > but until then i have been given a gv (great > vigour) predator to play with, its a older car with a os force .15 [quoted text clipped - 12 lines] > > I have stacks of questions but ill start with working this out, thanks Really, you need a copy of the manual or some photos of set up ones so you can compare, it's very hard to offer advice on such things without been able to see it in the flesh. You may also have to adjust the throttle trim on your radio transmitter to allow the carb to open all the way.  SignatureDan Thanks for the friendly reply Dan > Good choice, I've never actually used one, but I'm told they're incredibly > durable, and the engines are nice and easy to use. Also, best standard > radio gear that comes with a truck. Yup and aparently they handle very well right out of the box, im trying to convince some mates to get some cars too it will be pretty boring after a while bashin by myself lol. > Really, you need a copy of the manual or some photos of set up ones so you > can compare, it's very hard to offer advice on such things without been able [quoted text clipped - 3 lines] > -- > Dan ive tried to get a copy of the manual, best ive come across is a forum with someone owning one, ive sent them an email no reply yet but *fingers crossed* i can take pics. ill have another go tonight at trying different positions on the servo arms if the LHS is open tomorrow (sunday) i have the day off ill see if they can help me, they have a stack of old great vigour parts, ive still got to work out how the hell the clutch bell assembly is put together, i have 3 shoes, a spring, clutch bell and 2 tiny bearings??? neway ill see how i go tomorrow Carl > Thanks for the friendly reply Dan > [quoted text clipped - 30 lines] > > Carl One circular spring? Right. The shoes go on the pins on the flywheel, the spring round them, then slide a bearing down the shaft (or put it inside the clutch bell) and one bearing outside the clutch bell :) SignatureDan http://www.alansmodels.com/main_site/download/index.htm Only thing I could find is a Grand Vigor Predator (REX) > Hi Guys > [quoted text clipped - 15 lines] > > I have stacks of questions but ill start with working this out, thanks I have been trying to get the engine to start today without any success ive worked out its loosing compression through the glow plug, if i put my ear close it it and turn the engine over by hand i can hear gas comming out near the glow plug im guessing its threaded, when i tighen the glow plug it sorta keeps on going after it gets tight without using too much force. Do you guys think i should replace the cylinder head and keep trying, who knows what else is wrong with the engine, or i have found a site that sells brand new force 15's for $99 AU but the engine looks a little different, or another option just wait till i get my lst2, i think ill do the latter and just keep these bits for later down the track when i know more about these things. >I have been trying to get the engine to start today without any success > ive worked out its loosing compression through the glow plug, if i put [quoted text clipped - 7 lines] > my lst2, i think ill do the latter and just keep these bits for later > down the track when i know more about these things. The cylinder head button is stripped. The glow plug can't make a good seal d/t it's looseness, hence the engine won't start. Great diagnostic work by the way. The engine is likely fubared at this point. When the button stripped it likely dropped lots of metal shards into the cylinder, which have since been worked around d/t trying to start the engine, likely ruining the sleeve and piston. If you got the GV for a decent price, I'd drop a motor in it and have some fun, or get it running and pawn it on the 'bay. Doc > The cylinder head button is stripped. The glow plug can't make a good seal > d/t it's looseness, hence the engine won't start. Great diagnostic work by [quoted text clipped - 5 lines] > > Doc Thanks Doc Ill keep the car and put a new engine in one day so i have a spare car, i guess any engine will fit as long as the clutch bell on the drive shaft meshes with the gears connected to the drive train? ill pull this motor to bits to see whats inside :). I got the car for free. Oh and one quick question about glow plugs does it damage the glow plug if i leave the battery connected for a few minuits or should i be connecting the battery up and trying to get it disconnected asap? Thanks again > Thanks Doc > > Ill keep the car and put a new engine in one day so i have a spare car, > i guess any engine will fit as long as the clutch bell on the drive > shaft meshes with the gears connected to the drive train? ill pull this > motor to bits to see whats inside :). I got the car for free. Hell, if you got it for free, and it costs you $99AU for a new mill, that's a helluva price for a nitro. Any smallblock engine should work, so long as it's the same crankshaft type (SG vs. threaded) and length, and you get an engine with the same type of carb (slide vs. rotary). You can switch carb types, but that will involve some fabrication on the part of the throttle linkage. > Oh and one quick question about glow plugs does it damage the glow plug > if i leave the battery connected for a few minuits or should i be > connecting the battery up and trying to get it disconnected asap? You'll kill your glow battery within a few minutes if you leave it attached, but it won't hurt the glow plug one bit. Doc >> Thanks Doc >> [quoted text clipped - 16 lines] > You'll kill your glow battery within a few minutes if you leave it > attached, but it won't hurt the glow plug one bit. Guy at my LHS reckons you could burn the plug out. I dunno if there is any truth in that as I've done it loads of times before, and I haven't had to change a plug for donkeys now. Can I just recommend getting titanium skid plates to everyone, landed on a road from about 6 feet up the other day, flat out, shower of sparks - it was fantastic :-) SignatureDan - on Laptop > Guy at my LHS reckons you could burn the plug out. I dunno if there is > any truth in that as I've done it loads of times before, and I haven't had > to change a plug for donkeys now. Who knows. During break-in I usually leave the ignitor attached until it <the ignitor> dies to help keep the motor running while slobbering rich. I've never killed a plug by leaving it hooked up to the juice for too long. > Can I just recommend getting titanium skid plates to everyone, landed on a > road from about 6 feet up the other day, flat out, shower of sparks - it > was fantastic :-) Sweet! What brand are ya' running? F/C/R or just C? What's the weight like compared to aluminum? Doc >> Guy at my LHS reckons you could burn the plug out. I dunno if there is >> any truth in that as I've done it loads of times before, and I haven't [quoted text clipped - 11 lines] > Sweet! What brand are ya' running? F/C/R or just C? What's the weight > like compared to aluminum? Still the same Hardcore racing stuff - front and rear, but only the front was attached - ain't seen a centre Ti skid - where does one get one of those :D ? SignatureDan - on his PC I have used Nitro's for 3 hours max (loving it), and I burne a glow plug by trying in vain to start the damn thing...I had the glow plug attached for about a minute, when the needle suddenly fell to red. I removed the glow plug to test for a charge, and it was blackened. I used my DT-10 plug since it's never been in the road, and it worked a charm. G. >>> Thanks Doc >>> [quoted text clipped - 24 lines] > road from about 6 feet up the other day, flat out, shower of sparks - it > was fantastic :-) >I have used Nitro's for 3 hours max (loving it), and I burne a glow plug by >trying in vain to start the damn thing...I had the glow plug attached for >about a minute, when the needle suddenly fell to red. I removed the glow >plug to test for a charge, and it was blackened. I used my DT-10 plug >since it's never been in the road, and it worked a charm. I blew a plug yesterday - sometimes happens during breakin, ain't much one can do about it :-) SignatureDan - on his PC >>I have used Nitro's for 3 hours max (loving it), and I burne a glow plug >>by trying in vain to start the damn thing...I had the glow plug attached [quoted text clipped - 4 lines] > I blew a plug yesterday - sometimes happens during breakin, ain't much one > can do about it :-) Tru dat'. My track record for blowing breakin plugs is 50/50. However, if it's blackened he's got one of two bad things happening: 1. Dirt entering engine via air filter (I know all about that!) 2. Running engine too hot and burning castor oil in fuel. It makes a black/brown gummy mess when it cooks. Doc > 1. Dirt entering engine via air filter (I know all about that!) > 2. Running engine too hot and burning castor oil in fuel. It makes a > black/brown gummy mess when it cooks. 2!! I think I might have forgot to tighten the plug fully and after I took it for a spin, some oil or fuel was boiling inside the big silver thingy where the big sparky starty glow key thingy goes..... Havent.....got....a.....clue :) Gary. >> 1. Dirt entering engine via air filter (I know all about that!) >> 2. Running engine too hot and burning castor oil in fuel. It makes a [quoted text clipped - 7 lines] > > Gary. Big silver thingie = cooling head big sparky starty thingie = glow plug ignitor plug = glow plug (NOT a spark plug!!) Doc >>> 1. Dirt entering engine via air filter (I know all about that!) >>> 2. Running engine too hot and burning castor oil in fuel. It makes a [quoted text clipped - 15 lines] > > Doc Ta :) I thought the winzip link might have instructions, but after looking it is just a parts list... =( > Hi Guys > [quoted text clipped - 15 lines] > > I have stacks of questions but ill start with working this out, thanks |
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