Losi 8 Truggy - Diffential broken
#1
Tech Rookie
Thread Starter
Losi 8 Truggy - Diffential broken
Hi all,
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
- Is it normal for a bearing like this to wear out and break so fast? As said I have nearly 2 gallons run time on the car.
- I am not aware of the maintenance requirements of the diffs and bearings. Was this caused be me not doing any maintenance to them?
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
#2
Tech Elite
iTrader: (24)
Hi all,
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
- Is it normal for a bearing like this to wear out and break so fast? As said I have nearly 2 gallons run time on the car.
- I am not aware of the maintenance requirements of the diffs and bearings. Was this caused be me not doing any maintenance to them?
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
#3
R/C Tech Elite Member
iTrader: (1)
Hi all,
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
First, thanks for a great forum. As a beginner in the Nitro RC car world, I find this site very inspiring.
I run a Losi 8ight Truggy with an RB B9 engine in. This saturday I finally had about 2 gallons through it, so started tuning it in properly. I found a really good tune and had a lot of fun! After about 2-3 hours, the car was only putting power to the rear tires
I came home and saw that the bearings on the front differential was completely torn apart(5-6 pieces). This was the bearing that was broken, on both sides of the diff housing actually -> LOSA6948.
My questions are:
- Is it normal for a bearing like this to wear out and break so fast? As said I have nearly 2 gallons run time on the car.
- I am not aware of the maintenance requirements of the diffs and bearings. Was this caused be me not doing any maintenance to them?
As a final note, I run an RB 3001 exhaust(torque exhaust) and a 198mm manifold, so the torque output was HUGE after I tuned it in properly. I have considered putting on a 192mm manifold for just a bit more linear power.
Thanks for any replies
/Jim
#4
Tech Rookie
Thread Starter
Thanks for your replies
#5
Tech Lord
iTrader: (148)
Diff and shock oil need to be changed at about every gallon of fuel run through the car. You can go longer but you will also notice that it will drive differently. Maintence is critical to allow these cars to finish a long main. Without it parts fail and dnf ends up your finish spot.
#6
Tech Fanatic
iTrader: (2)
Diff and shock oil need to be changed at about every gallon of fuel run through the car. You can go longer but you will also notice that it will drive differently. Maintence is critical to allow these cars to finish a long main. Without it parts fail and dnf ends up your finish spot.
#7
Tech Rookie
Thread Starter
Diff and shock oil need to be changed at about every gallon of fuel run through the car. You can go longer but you will also notice that it will drive differently. Maintence is critical to allow these cars to finish a long main. Without it parts fail and dnf ends up your finish spot.
I had no idea I should do that Would have been nice if the Losi manual had a maintenance part in it!
Any good description for total nitro RC maintenance anywhere?
Thanks again for your input!
/Jim
#8
Tech Lord
iTrader: (148)
There's a thread on here somewhere but pretty much diffs and shocks every gallon. Check the clutch then too or before if you feel it slip. And then I change wheel bearings and diff bearings when I service them so every gallon too. If the shock bladders are stiff I replace them too when I service the shocks. Otherwise replace parts as needed. I usually give it a once over before every race day and then again before the main. If you want it to perform it requires attention.
#9
Tech Rookie
Thread Starter
Thanks Frank, still looking for a guide to maintenance somewhere, can't fint it