RE: STS Engines  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: savagecbass
  Printable Version
       

All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> RE: STS Engines
Page: <<   < prev  18 19 20 [21] 22 23 24 25 26 27   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: STS Engines - 6/24/2008 10:20:22 AM   
Coopz



Posts: 920
Joined: 3/21/2006
From: Adelaide, AUSTRALIA
Status: offline 		I have a major annoyance with my engine. The low speed needle has always been loose, as in very easy to turn but it seems to have become even looser, it now turns itself when the engine is running totally messing up the tune. The idle and high speed needles do not have this issue. Anyway to fix it? Had it since day one and i really should have returned the engine before I started it, it's the .28 5port engine as well.

_____________________________

HB Lightning Pro, Mach .21
HN X1 CRT Pro, Sportwerks Chaos, 30cc FS Baja

(in reply to JB COMP)
       Post #: 501

RE: STS Engines - 6/24/2008 10:34:26 AM   
j_blaze



Posts: 1504
Joined: 1/4/2007
From: Tampa, FL, USA
Status: offline 		i used a 1mm piece of fuel tubing as an oring substitute before, worked great with a dab of grease. i have tho orings but i'll leave i as it is for now. the trick is to find a fuel line that fits snug enough to keep it tight.

_____________________________

CASTER K8T Pro - GO 21 R-Spec/RB WS7III, JR, DX3R
Caster Zx1-R (soon) - ????

(in reply to Coopz)
       Post #: 502

RE: STS Engines - 6/24/2008 2:42:26 PM   
JB COMP



Posts: 4200
Joined: 11/23/2006
From: Navarre, FL, USA
Status: online 		Try to find a over sized Oring, that's what the guy at STS_pro on Ebay did to my STS 30 to fix the problem, but I don't know where you can get them. You can also wrap a few wraps of Teflon tape (or plumbers tape) around the treads and that should fix it.

_____________________________

LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to j_blaze)
       Post #: 503

RE: STS Engines - 6/24/2008 3:19:40 PM   
jaywax



Posts: 675
Joined: 2/15/2006
From: Austin, TX, USA
Status: offline
quote:

ORIGINAL: Coopz

I have a major annoyance with my engine. The low speed needle has always been loose, as in very easy to turn but it seems to have become even looser, it now turns itself when the engine is running totally messing up the tune. The idle and high speed needles do not have this issue. Anyway to fix it? Had it since day one and i really should have returned the engine before I started it, it's the .28 5port engine as well.


I had the same problem with my 28 5-port and S21T. I called the guy from nitrocountry and he told me to pull out needle a wrap some plumbers tape around the neeedle. The problem was solved instantly. Never had to deal with it again. I will do this to all my future STS engines. The plumbers tape is about $1.50 at hardware store. I promise you it will solve the problem.

_____________________________

Mugen MBX5T Prospec w/STS S21T***KO Propo EX-10 Helio w/Spektrum Pro Module

(in reply to Coopz)
       Post #: 504

RE: STS Engines - 6/24/2008 5:58:15 PM   
ugly duck


 

Posts: 357
Joined: 3/28/2008
From: Calgary, AB, CANADA
Status: offline 		Plumbers tape is the wrong thing to use on a normal automobile carburator - it gets cut up in the threads, breaks apart, and strings of it clog up the innards of the carburator. An RC carb is quite a bit simpler than a full-size 4 barrell, so you might get away with it, but the innards of the RC carb are also a whole lot smaller and more likely to clog.

Anyone know if blue loctite is fuel safe? I'd try a small dab of that - just enough to tighten things up, but it's not going to lock it in place.

_____________________________

Sponsored by Redcat-Vancouver
Email: westcoasthobbies@shaw.ca

(in reply to jaywax)
       Post #: 505

RE: STS Engines - 6/24/2008 6:12:47 PM   
JB COMP



Posts: 4200
Joined: 11/23/2006
From: Navarre, FL, USA
Status: online
quote:

ORIGINAL: ugly duck

Plumbers tape is the wrong thing to use on a normal automobile carburator - it gets cut up in the threads, breaks apart, and strings of it clog up the innards of the carburator. An RC carb is quite a bit simpler than a full-size 4 barrell, so you might get away with it, but the innards of the RC carb are also a whole lot smaller and more likely to clog.

Anyone know if blue loctite is fuel safe? I'd try a small dab of that - just enough to tighten things up, but it's not going to lock it in place.


Teflon tape is fine on the LSN since the treads are no where near the fuel or intake of the carb. Now on a HSN I wouldn't use Teflon.

_____________________________

LX Comp: STS21B, JP-3, DX3.0 - CRT: STS 30 Rev2 or Mach 427, STS 0702, DX3.0 - T-maxx: TRX2.5
Airtronics. BlueBird.

(in reply to ugly duck)
       Post #: 506

RE: STS Engines - 6/24/2008 7:10:56 PM   
jaywax



Posts: 675
Joined: 2/15/2006
From: Austin, TX, USA
Status: offline
quote:

ORIGINAL: ugly duck

Plumbers tape is the wrong thing to use on a normal automobile carburator - it gets cut up in the threads, breaks apart, and strings of it clog up the innards of the carburator. An RC carb is quite a bit simpler than a full-size 4 barrell, so you might get away with it, but the innards of the RC carb are also a whole lot smaller and more likely to clog.

Anyone know if blue loctite is fuel safe? I'd try a small dab of that - just enough to tighten things up, but it's not going to lock it in place.


You can take out needle and put loctite on it and let it dry overnight. The loctite will be on the threads and it will keep it in place and allow it to move. (I have used this method as well)

***Do not loctite needle and then immediately place it back in the carb. Please wait till it dries overnight***


< Message edited by jaywax -- 6/24/2008 7:11:22 PM >

_____________________________

Mugen MBX5T Prospec w/STS S21T***KO Propo EX-10 Helio w/Spektrum Pro Module

(in reply to ugly duck)
       Post #: 507

RE: STS Engines - 6/25/2008 1:42:51 AM   
jaywax



Posts: 675
Joined: 2/15/2006
From: Austin, TX, USA
Status: offline 		I found this information on the STS website. It answers a lot of questions.

Q: What is the factory setting for STS engines?

A: The suggested setting to start with is around;
.12
High Speed needle 4 turns out from the end
Low Speed needle 4 turns out from the end
Mid Range needle Flush with the housing
Idle 0.5mm open
.21-.30
LSN 4.5 turns out from the end
HSN 3 turns out from the end
Idle 0.5mm open
Please keep the engine temp. not higher than 120C/248F.




Q: Would you mind telling me the Front and Rear Bearing dimensions?
A: Front Bearing #607 (7mm X 19mm X 6mm)
.12 Main Bearing #6801 (12mm X 21mm X 5mm)
.21-.30 Main Bearing #2514 (14mm X 25mm X 6mm)




Q: How to remove the sleeve out from D28M?
A: Use three cable-ties insert from the exhaust hole then turn the flywheel slowly.....the sleeve will be pushed out by piston.




Q: Friends tell me that the piston and rod should be removable from the crankpin easily after the sleeve is out. But it doesn't work What can i do ?
A: Use a cable-tie to tie the con-rod and keep the piston at the TDC. Then pull the cable tie from the backplate place slowly. Be careful the piston may pop out and fall to the ground. And when you pull the cable-tie,the crank shaft must be fixed.




Q: How to remove the main bearing from the crankcase?
A: Ues oven to heat the crankcase to 250C the main bearing will be loose. Or you can use the industrial hairdryer(700c+) to heat the crankcase. Remember it is the traditional electric oven. Never use the microwave oven to heat any metal!




Q: How long I should check the bearing's condition?
A: We suggest you to check the bearings and rod's condition each gallon. If there is a big tolerance please replace with new parts. If you ignore it,the crankpin may be snapped soon!




Q: Why the pull-start so easy be damaged?
A: Do not pull out more than 30cm. Damage to the pull-start may occur.




Q: The new engine is very tight. It is impossible to turn it. How to start it?
A: Preheat the engine with hairdryer or loosen the glow plug when first starting the motor.




Q: My engine has a pull-start system. What parts will I need to convert to Roto-start?
A: You just need the Roto-Start Backplate Conversion Set(#280105) which is including all needed parts.




Q: Can you tell me the specifications about RPM, HP etc?
A: Till now there is no official laboratory can test the micro engine's horsepower. All manufactories is just estimate the HP and RPM. It doesn't make sense if we know it is a lie but we still list it.




Q: What percentage of Nitro is the STS .30 shimmed for?I run 20% ..... do I need to remove any shims?
A: All of our engines are shimmed for 30%Nitro. With 20% you can remove 0.1mm shim or a little more for getting more power. It also depend on the weather and atmospheric pressure so you have to test it yourself. There is no exact answer. Once it works good,then it is a good setting.


Any other question please mail us.


< Message edited by jaywax -- 6/25/2008 4:39:04 AM >

_____________________________

Mugen MBX5T Prospec w/STS S21T***KO Propo EX-10 Helio w/Spektrum Pro Module

(in reply to jaywax)
       Post #: 508

RE: STS Engines - 6/27/2008 1:21:26 AM   
ugly duck


 

Posts: 357
Joined: 3/28/2008
From: Calgary, AB, CANADA
Status: offline 		Hi, all.

Just picked up a used D28M and found that the PO had removed the pullstart. The crankshaft is the right one for the pullstart, but it's got a solid backplate in place. Has anyone got a pullstart assembly (complete) they'd like to sell me for less than the cost of a new one?

_____________________________

Sponsored by Redcat-Vancouver
Email: westcoasthobbies@shaw.ca

(in reply to JB COMP)
       Post #: 509

RE: STS Engines - 6/27/2008 5:15:03 AM   
sfar785


 

Posts: 1444
Joined: 4/7/2007
From: colorado springs, CO, USA
Status: offline 		you're better off just buying a new one, i wouldn't buy a used pull start. And did you say that the PO (Post Office) removed your pull start? I don't think they can tamper with packages.

(in reply to ugly duck)
       Post #: 510

RE: STS Engines - 6/27/2008 5:17:23 AM   
supermod


 

Posts: 243
Joined: 8/6/2007
From: lisbon falls, ME, USA
Status: offline 		lmao you sts guys i dont know

_____________________________

raze .28rr,17t,jp-2,spiral diffs,lightened cups/o.s .30vg modded/hyper 7 .21 8p,nothin but OD plugs and fule!

(in reply to sfar785)
       Post #: 511

RE: STS Engines - 6/27/2008 2:24:19 PM   
ugly duck


 

Posts: 357
Joined: 3/28/2008
From: Calgary, AB, CANADA
Status: offline
quote:

ORIGINAL: sfar785

you're better off just buying a new one, i wouldn't buy a used pull start. And did you say that the PO (Post Office) removed your pull start? I don't think they can tamper with packages.


PO = Previous Owner in this case.

For the cost of a new pull start and all the components (drive plate, backing plate, shaft, and recoil mechanism), I'd buy a new motor to have one as a spare. I'm looking for a good used one from someone who removed it to go racing, for example.

_____________________________

Sponsored by Redcat-Vancouver
Email: westcoasthobbies@shaw.ca

(in reply to sfar785)
       Post #: 512

RE: STS Engines - 6/29/2008 6:46:24 PM   
james1212


 

Posts: 55
Joined: 6/20/2008
From: burbank, IL, USA
Status: offline 		hey everyone i finally broke in my sts d28 pro 5 port . i only got threw the cold breakin stage but any ways i have ? when i did cold break in , it would start and run for a while but out of the blue it would start running backwards . meaning the motor would run to left then start running to the right. is this bad for it ? has this happened to someone else. thanx

(in reply to ugly duck)
       Post #: 513

RE: STS Engines - 6/29/2008 7:32:14 PM   
jaywax