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Help with Rs4 parts ...

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Old 08-02-2014, 07:15 PM
  #1
JFranco
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Default Help with Rs4 parts ...

Hi,

I purchased an older HPI RS4 RTR and started to fix it up. The bearing in the bell housing was blown apart. Only part that kept coming up on the HPI website, is B021.
Well, of course I order it and its not correct. Please see the pics below and someone tell me the correct bearing for this. Thanks!!!
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Old 08-11-2014, 01:28 PM
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TriadicRC
 
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Is the bearing too big for the clutch bell? B021 is all i can find as well for the RS4. Do you know what the exact model of RS4 this is?
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Old 08-11-2014, 06:13 PM
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JFranco
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Yes, it is a little too big. Not sure of exact model, all I was told was that it was an HPI RS4 RTR,
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Old 08-12-2014, 06:24 AM
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TriadicRC
 
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Do you have calipers or any other semi-accurate way to take measurements of where the bearing resides? HPI uses B021 on the clutch bells for almost every nitro car they make / have ever made. B021 should be 5mm x 10mm and the bearing slot should measure the same.
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Old 08-14-2014, 11:28 AM
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JFranco
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Diameter of where the bearing sits is: .311 inches or 7.90mm using a caliper.
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Old 08-20-2014, 11:06 PM
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Maybe this car had it's engine swapped, the best thing is to first find the engine model number. Do you know this?
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Old 09-01-2014, 12:51 PM
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It's an HPI 15. Don't see any other numbers on it. Send an emial to HPI and they never replied. Not good. Never have these issues with Traxxas support.
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Old 09-01-2014, 04:10 PM
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it's a T-15 engine. This is really odd because the cars looks dead on like an RS4 RTR 3 Evo, specifically the Dodge Viper model based on the wheels. This particular car uses B021 bearings for the clutch bell. The only 8mm bearing i know HPI uses is B017, but i am not sure if that is the part you need.

can you take a close up pick of the transmission and spur gear?


EDIT...

That kit is an HPI RS4 3, they no longer have manuals online for it. It should be very similar to the HPI RS4 MT2 if you need to cross reference any parts.

Does this look like the old bearing? http://www.hpiracing.com/en/part/b046

If so, they have an updated part set http://www.hpiracing.com/en/part/B019

Last edited by TriadicRC; 09-01-2014 at 04:29 PM.
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Old 09-08-2014, 04:28 PM
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Thanks, That could be the old bearing. Not much was left of it, but the bearings that were are long. Here are some more pics.

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Last edited by JFranco; 09-10-2014 at 03:36 PM.
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