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Old 09-28-2010, 09:48 PM   #16
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Lol I been running a crappy Hitec HS-645MG for throttle in my 8ight and have had no problems. Just adjust everything properly and it'll be fine.

Next trip to the track it will go out now that I say that..
Don't you hate how that works?
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Old 09-28-2010, 10:29 PM   #17
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Don't you hate how that works?
Happens every time! Just this last week I was gloating about how my OS VSpec is the most powerful, reliable motor I've ever had. Last Sat. at the Proline Gas Champs the con rod broke at start up

Anywho when I do have the funds I'm planning on upgrading to an Orion for throttle to match my steering.
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Old 09-28-2010, 11:09 PM   #18
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Don't you hate how that works?
+1 to that. Last year I was going on about how my fuel never flames out and then that weekend bam a flame out.

How to keep a throttle servo in a losi: set the endpoints, make sure the linkage does not bind (you should be able to pull the linkage open the close on the end, acutate the spring and not move the throttle servo smoothly) and most of all make sure the servo is not touching anything on the bottom. That seems to work for me. A big thing that caused my truggy to eat multiple throttle servos was the bottom side of the servo was hitting the plastic side mud guard. A little dremmel and all is good now.
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Old 09-29-2010, 06:22 AM   #19
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I ran JR 9100 servos for 2 years and never had a problem.

Its not the servo. You have to take your time and adjust your linkage correctly. You HAVE to set your EPA correctly. Now I use the rubber pieces that go on the servo ears. I run Hitec 7950s now and those are these BEST servos I have EVER used. No play in them unlike my JRs.
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Old 09-29-2010, 06:34 AM   #20
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LOSI 8 2.0 truggy & buggy/How to keep a throttle servo ALIVE ?

Losi 8B 2.0 / dead JR 9100HVT 3 races
Losi 8T 2.0/ dead JR 9100HVS 5 Races
Losi 8T 2.0/ dead Hitec 7940TH 6 races

All electrical not gear related failer?
I still run JR 9100HVS on my truggy for throttle, no issues so far. I would say the biggest thing is check the strain on the servo when you brake. I have seen people moving radio trays when applying brakes.

My servo whines just a little bit when applying break (kind of hard to avoid this) but its been running all year without an issue.

I also run fuel line on my linkage to try to help soften the tension.

If you want another 9100 HVS, I have one for sale
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Old 09-29-2010, 06:44 AM   #21
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I ran JR 9100 servos for 2 years and never had a problem.

Its not the servo. You have to take your time and adjust your linkage correctly. You HAVE to set your EPA correctly. Now I use the rubber pieces that go on the servo ears. I run Hitec 7950s now and those are these BEST servos I have EVER used. No play in them unlike my JRs.
Agree. Servo grommets are an absolute must.
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Old 09-29-2010, 07:49 AM   #22
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I find torque servos to work better on the losi. I have burned up 2 speed servos at throttle with my linkage setup per the instructions. The main issue i see is that the carb has to be pulled at an angle. Puts stress on the servo and the slide of the carb since its pulling the slide against the idle stop screw. LOSI REALLY NEEDS TO FIX THIS. IT IS UNACCEPTABLE.

Last night I was reinstalling my radio gear and i ordered what i thought were new servo horn screws for the JR. Put them on and stripped the screw holes in the spline(wrong threads on the screws). I put the original screws back in and they seemed ok but we'll see. Anyone know how to fix that if i did strip them? It isn't worth me ordering the $50 gears. Worst way to ruin $200 worth of servos! Stuff like this makes we want to quit this hobby
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Old 09-29-2010, 08:02 AM   #23
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take the time to set it up correctly, if you dont have the knowledge, dont be afraid to ask for help from a factory guy at your track, grommets are a must and so are dialed in EPA's as well, angle is important on the losi linkage from what I have learned, I shaved some of my center diff plate off to allow for a better throw to the carb as well.......I have NEVER lost a t/b servo in a Losi car after 2 full outdoor seasons of gas.
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Old 09-29-2010, 08:09 AM   #24
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I have a solid understanding on how with the dx3r you can adjust how far the servo travels in each direction but then you can also adjust the epa or brake percentage on the fly. I have recently done 2 throttle/brake servos so I'm thinking I must be doing something wrong. My travel is currently set at 100 out of a possibly 120 and then the overall percentage is at 68% out of 100%.

Are these two fuigures too far out of balance between each other????
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Old 09-29-2010, 08:10 AM   #25
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Originally Posted by bacchus View Post
I find torque servos to work better on the losi. I have burned up 2 speed servos at throttle with my linkage setup per the instructions. The main issue i see is that the carb has to be pulled at an angle. Puts stress on the servo and the slide of the carb since its pulling the slide against the idle stop screw. LOSI REALLY NEEDS TO FIX THIS. IT IS UNACCEPTABLE.

Last night I was reinstalling my radio gear and i ordered what i thought were new servo horn screws for the JR. Put them on and stripped the screw holes in the spline(wrong threads on the screws). I put the original screws back in and they seemed ok but we'll see. Anyone know how to fix that if i did strip them? It isn't worth me ordering the $50 gears. Worst way to ruin $200 worth of servos! Stuff like this makes we want to quit this hobby
if you need jr gears i have a ton, just let me know if you need! i have no use for them
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Old 09-29-2010, 08:30 AM   #26
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I still run JR 9100HVS on my truggy for throttle, no issues so far. I would say the biggest thing is check the strain on the servo when you brake. I have seen people moving radio trays when applying brakes.

My servo whines just a little bit when applying break (kind of hard to avoid this) but its been running all year without an issue.

I also run fuel line on my linkage to try to help soften the tension.

If you want another 9100 HVS, I have one for sale
Where you put the fuel line? brakes or carb??
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Old 09-29-2010, 09:04 AM   #27
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Agree. Servo grommets are an absolute must.
Could not figure out how to spell grommets.... LOL
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Old 09-29-2010, 09:05 AM   #28
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Originally Posted by Trevor Williams View Post
take the time to set it up correctly, if you dont have the knowledge, dont be afraid to ask for help from a factory guy at your track, grommets are a must and so are dialed in EPA's as well, angle is important on the losi linkage from what I have learned, I shaved some of my center diff plate off to allow for a better throw to the carb as well.......I have NEVER lost a t/b servo in a Losi car after 2 full outdoor seasons of gas.


well i shaved the center diff mount on my 1.0 t and i have to still turn the carb at bit so the rubber boot doesnt rub . i cant shave anymore off the mount.
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Old 09-29-2010, 09:08 AM   #29
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Where you put the fuel line? brakes or carb??
brakes
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Old 09-29-2010, 09:18 AM   #30
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brakes

Correct, thank you sir
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