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Old 06-14-2007, 10:43 AM   #4516
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OK, thanks...

Here's another stupid rookie question....

When installing a spool pulley (LOSA3329), does it just replace the diff pulley (ie- I still use the diff rings, just not the balls out of diff pulley)?

or do I not use the diff rings and ......?

or do I need to get some rubber pads somewhere and put them where the diff rings are?

I put it together with the pulley between the diff rings, but want to verify that this is correct.

Mark
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Old 06-14-2007, 10:58 AM   #4517
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Originally Posted by markf3x View Post
When installing a spool pulley (LOSA3329), does it just replace the diff pulley (ie- I still use the diff rings, just not the balls out of diff pulley)?

or do I not use the diff rings and ......?

or do I need to get some rubber pads somewhere and put them where the diff rings are?

I put it together with the pulley between the diff rings, but want to verify that this is correct.

Mark
just replace the diff pulley with the spool pulley with the pads. but make sure to clean any silicone or other grease from the diff rings etc.. otherwise you will have slipage
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Old 06-14-2007, 12:14 PM   #4518
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just replace the diff pulley with the spool pulley with the pads. but make sure to clean any silicone or other grease from the diff rings etc.. otherwise you will have slipage

UMMMMM..My spools came with no pads ...is there something I am missing?
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Old 06-14-2007, 12:18 PM   #4519
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Mine have no pads either.
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Old 06-14-2007, 12:18 PM   #4520
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UMMMMM..My spools came with no pads ...is there something I am missing?
you have part# LOSA3329 -right? If so the pads are installed in the pulley aready. (notice no holes available for the diff balls)

if not the only way to get pads is in the above part as they are not sold seperately because they would be broken in transit.

edit: there are two spool pulley parts numbers one for a 41T pulley and then LOSA3329 which is a 42T pulley
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Old 06-14-2007, 12:31 PM   #4521
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Attached is a rubber tire gearing chart I put together (Final Drive Ratio).

What's unique (I think)... I only include the spur/pinion combinations that will actually fit in the car. I've included the standard Losi Spurs (118,126,128) and the PRS ones I have 104,110, and 112.

ps- to figure out what pinion/spur combos would fit I used math and didn't actually try them, so there might be a margin of error.. I measured min and max distance between center of motor shaft and pulley shaft (1.15" to 1.35"). Using the # of teeth I calculated the radius of all the pinions and spurs and included only the ones that when added together were in the range 1.16 to 1.33".

Yes... I was bored on a flight with my laptop.

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Attached Files
File Type: zip gearing.zip (4.4 KB, 56 views)
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Old 06-14-2007, 12:37 PM   #4522
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Quote:
Originally Posted by rocketron View Post
you have part# LOSA3329 -right? If so the pads are installed in the pulley aready. (notice no holes available for the diff balls)

if not the only way to get pads is in the above part as they are not sold seperately because they would be broken in transit.

edit: there are two spool pulley parts numbers one for a 41T pulley and then LOSA3329 which is a 42T pulley
you are pretty sharp - I didn't think about that. that is how mine showed up and i installed them without question!!!!
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Old 06-14-2007, 12:38 PM   #4523
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Quote:
Originally Posted by rocketron View Post
you have part# LOSA3329 -right? If so the pads are installed in the pulley aready. (notice no holes available for the diff balls)

if not the only way to get pads is in the above part as they are not sold seperately because they would be broken in transit.

edit: there are two spool pulley parts numbers one for a 41T pulley and then LOSA3329 which is a 42T pulley
The 42T spool pulley (LOSA3329) is solid plastic where the diff balls are on the diff pulley. The pulleys I received, there is no additional parts/materials applied to the pulley, nor is there any pieces in the bag besides the pulley.

Is this the way it should be?

Mark
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Old 06-14-2007, 01:13 PM   #4524
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Originally Posted by markf3x View Post
The 42T spool pulley (LOSA3329) is solid plastic where the diff balls are on the diff pulley. The pulleys I received, there is no additional parts/materials applied to the pulley, nor is there any pieces in the bag besides the pulley.

Is this the way it should be?

Mark
There is supposed to be black rings where the balls would normally go and they are preinstalled. There is nothing for you to do other then replace the current diff pulley with the spool pulley.
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Old 06-14-2007, 01:21 PM   #4525
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Yeti, Thanks for clearing this up..
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Old 06-14-2007, 07:26 PM   #4526
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Markf3x:: When I get my Losi, I want your setup for a starting point. Your car actually tracks better than the others I have seen on our track.
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Old 06-14-2007, 08:28 PM   #4527
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Galdo,

Your going to get a Type R?

I thought you were just a closet Losi groupie..

I'd be happy to help you dup my setup as a starting point.


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Old 06-15-2007, 07:43 AM   #4528
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Markf3x:: When I get my Losi, I want your setup for a starting point. Your car actually tracks better than the others I have seen on our track.
That's what I'm talking about. When are you getting yours? Have you driven one yet?
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Old 06-15-2007, 08:06 AM   #4529
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I will look at getting one in a few weeks. I have watched Dumas and Markf3x wrench on their kits enough to appreciate what value and potential the kit offers.

Markf3x is pretty much new at this and has elevated his game with a simple chassis change. His car transitions through the turns better and he is still figuring out the wheelin' and tuning part. He admits needing more wheel time but lately is running up front. Has me wondering if I sat out of touring too long...

No, I have not wheeled one...
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Old 06-15-2007, 08:12 AM   #4530
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Markf3x:: When I get my Losi, I want your setup for a starting point. Your car actually tracks better than the others I have seen on our track.
i will believe it when i see it Galdo.....all i can say is that my Mi3 is strong....

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