Schumacher Mi5
#1231
Thanks for that. Got the problem sorted, had the idea to use a droop gauge to make sure each arm behaves the same. Ended up with quite a difference in length between the links though.
#1232
Assuming the sway bar is not distorted (one end higher than the other) I would try to see if both wishbones transfer lift across to the other side with the shocks disconnected. If there is a delay then you now there's a problem with one of the wishbones, perhaps something is binding, etc.
If movement is transferred consistently from one side to the other, then the problem might be with the springs/shocks. Are the shocks compressed equally? Do the pistons move freely in the shocks? Check shock assembly to make sure pistons don't cock inside the shock.
Having largely different length sway bar links is a sign something else is not quite right.
#1233
An earlier post (on the previous page) reports how lifting one wishbone transfers movement immediately to the other side whilst lifting the other does not.
Assuming the sway bar is not distorted (one end higher than the other) I would try to see if both wishbones transfer lift across to the other side with the shocks disconnected. If there is a delay then you now there's a problem with one of the wishbones, perhaps something is binding, etc.
If movement is transferred consistently from one side to the other, then the problem might be with the springs/shocks. Are the shocks compressed equally? Do the pistons move freely in the shocks? Check shock assembly to make sure pistons don't cock inside the shock.
Having largely different length sway bar links is a sign something else is not quite right.
Assuming the sway bar is not distorted (one end higher than the other) I would try to see if both wishbones transfer lift across to the other side with the shocks disconnected. If there is a delay then you now there's a problem with one of the wishbones, perhaps something is binding, etc.
If movement is transferred consistently from one side to the other, then the problem might be with the springs/shocks. Are the shocks compressed equally? Do the pistons move freely in the shocks? Check shock assembly to make sure pistons don't cock inside the shock.
Having largely different length sway bar links is a sign something else is not quite right.
The car was a beast on the track today, fastest in every heat, TQ and A Main win. Not bad at all for first time out. Also smashed my Pb by 5/10ths.
I'll clean it all up, rebuild the dampers and diff, and search for the cause of my sway bar tweak.
#1234
I found the problem originally with the dampers off the car, so I do need to investigate further.
The car was a beast on the track today, fastest in every heat, TQ and A Main win. Not bad at all for first time out. Also smashed my Pb by 5/10ths.
I'll clean it all up, rebuild the dampers and diff, and search for the cause of my sway bar tweak.
The car was a beast on the track today, fastest in every heat, TQ and A Main win. Not bad at all for first time out. Also smashed my Pb by 5/10ths.
I'll clean it all up, rebuild the dampers and diff, and search for the cause of my sway bar tweak.
If the arms move freely after you just break loose the inner hingepin support screws, you found your problem. Investigate and rectify. I found some supports just pinch a tiny bit the hingepin but enough to make arm movement stiff. If there's no manufacturing problem, then just doing up all four screws a bit at a time is enough to allow everything to settle with good working clearance.
#1235
Tech Regular
Havent had the chance to read through all the thread yet but here do you guys measure your droop from?
#1236
Tech Regular
Hope you know what I mean.
#1237
Tech Lord
iTrader: (52)
So if your ride height measures at 5mm... and your tires lift off the ground when your ride height says 8mm, that's 3mms droop. Easy as that.
#1238
Tech Initiate
Droop
Agree with above, you measure your droop like ride height and lift the front or rear until the wheels start to lift then the difference between settled and wheels about to leave the setup board is your droop.
Down stop is the measurement posted 2 x above using 10mm blocks.
to be honest I really only do down stop and don't really know of many people who alter the droop as it takes forever.
Down stop is the measurement posted 2 x above using 10mm blocks.
to be honest I really only do down stop and don't really know of many people who alter the droop as it takes forever.
#1240
Tech Adept
#1241
You might have to pull the motor apart and rotate the end bell so the screw holes line up with the motor mount. If that don't work you will have to get a end bell from a revtech motor.
#1244
Tech Adept
CG Spreadsheet for Mi5
Was wondering what the relative effect of moving the motor and the battery would be so I worked up a crude CG spreadsheet to show the CG position in the various configurations of cell position, cell size (shorty/stick), and motor position. This is for the measured weight of my gear and doesn't include the motor wires or the mass of the motor mount moving but I figure it gives an idea of the relative effect of each change. All cg positions and levers are relative to the front axle center-line.
CG in cm from front axle
Rear Motor:
Stick Mid: 13.79
Stick Fwd: 13.63
Stick Rear 13.97
Mid Motor:
Stick Mid: 13.12
Stick Fwd: 12.97
Stick Rear 13.25
Rear Motor:
Shorty Mid: 12.90
Shorty Fwd: 12.77
Shorty Rear 13.03
Mid Motor:
Shorty Mid: 11.98
Shorty Fwd: 11.85
Shorty Rear 12.03
CG in cm from front axle
Rear Motor:
Stick Mid: 13.79
Stick Fwd: 13.63
Stick Rear 13.97
Mid Motor:
Stick Mid: 13.12
Stick Fwd: 12.97
Stick Rear 13.25
Rear Motor:
Shorty Mid: 12.90
Shorty Fwd: 12.77
Shorty Rear 13.03
Mid Motor:
Shorty Mid: 11.98
Shorty Fwd: 11.85
Shorty Rear 12.03
#1245
OK Guys, I am not new to TC but this kit is new to me. I was hoping home page/first page had building tips. Can someone give me pointers BEFORE I start.
thanks,
thanks,