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Old 05-24-2010, 07:34 AM   #2761
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I wonder if the new left wheel hub will work on the F-103,I belive the two axles are the same except for the length? I have destroyed a couple of shafts by over-tightening them
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Old 05-24-2010, 08:13 AM   #2762
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Originally Posted by Metla View Post
Can anyone comment on the T-bars from 3racing?

They don't seem to be discussed or even mentioned so far, and one of the sets listed as for the f104 doesn't even look like it would fit.

I am using the 1.3 bar on my 103/104 and love it.
It's REALLY soft so make sure you like that sort of setup
or buy a stiffer plate.
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Old 05-24-2010, 08:15 AM   #2763
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I wonder if the new left wheel hub will work on the F-103,I belive the two axles are the same except for the length? I have destroyed a couple of shafts by over-tightening them
You need the 104 left/diff assy.and the f104 axle.
Works like a champ.
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Old 05-25-2010, 01:17 PM   #2764
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Hey Guys, I'm a total noob and I just finished building my f104 pro. I have a question that I am hoping someone might be able to answer.

I seem to have a very bad vibration on the left rear when under power. If I hold the car up ad give it full throttle I can feel it. If I hold the left wheel and let the right spin, it is smooth. If I hold the right and let the left spin it vibrates badly.

First I thought It might be a tire imbalance (bad glue job) but I tested it with foams ad the problem was still there. Not as bad as with the rubber tire, but still there none the less.

Any ideas as to what might be the cause?

Thanks
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Old 05-25-2010, 01:29 PM   #2765
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Quote:
Originally Posted by caveryis View Post
Hey Guys, I'm a total noob and I just finished building my f104 pro. I have a question that I am hoping someone might be able to answer.

I seem to have a very bad vibration on the left rear when under power. If I hold the car up ad give it full throttle I can feel it. If I hold the left wheel and let the right spin, it is smooth. If I hold the right and let the left spin it vibrates badly.

First I thought It might be a tire imbalance (bad glue job) but I tested it with foams ad the problem was still there. Not as bad as with the rubber tire, but still there none the less.

Any ideas as to what might be the cause?

Thanks
I would check the axleshaft itself, and then check the hex with the wheel off
check to see if there is any visible wobble to the axle or the hex. Also check to make sure you have the hex seated correctly on the axle
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Old 05-25-2010, 01:51 PM   #2766
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Since my last crash i've got some camber problems. On the left side it is ok at 2.5 (impact side, but all parts changed) and on the right hand side there are 4 degree. What am I doing wrong?
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Old 05-25-2010, 02:00 PM   #2767
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What am I doing wrong?
crashing.
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Old 05-25-2010, 02:02 PM   #2768
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Just kidding. My F104PRO has been crashed more than probably any of them built!

What parts have you replaced? Small tweaks to the front plastic pieces can equate to good-sized differences way out at the wheels.

Also, how are you measuring the camber?
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Old 05-25-2010, 07:04 PM   #2769
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Quote:
Originally Posted by caveryis View Post
Hey Guys, I'm a total noob and I just finished building my f104 pro. I have a question that I am hoping someone might be able to answer.

I seem to have a very bad vibration on the left rear when under power. If I hold the car up ad give it full throttle I can feel it. If I hold the left wheel and let the right spin, it is smooth. If I hold the right and let the left spin it vibrates badly.

First I thought It might be a tire imbalance (bad glue job) but I tested it with foams ad the problem was still there. Not as bad as with the rubber tire, but still there none the less.

Any ideas as to what might be the cause?

Thanks
I have seen the threaded part of the left hex hub bent, with the left wheel off check to see if this is true.
Remove the pinion and spin the rear axle assembly, it should spin freely.
The entire left hub should spin true.
If it's a bad glue job, then the problem will switch sides if you swap wheels left to right.
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Old 05-26-2010, 08:24 AM   #2770
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Quote:
Originally Posted by j.d.roost View Post
You need the 104 left/diff assy.and the f104 axle.
Works like a champ.
No, you don't.
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Old 05-26-2010, 08:35 AM   #2771
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Was thinking diff. side.
Hey,it's left if your looking at the front of the car....DOH
Figured he figured that out by now.
Yes the non diff.side is the same as the 103.
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Old 05-26-2010, 10:08 AM   #2772
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Was thinking diff. side.
Hey,it's left if your looking at the front of the car....DOH
Figured he figured that out by now.
Yes the non diff.side is the same as the 103.
Yes I did, thanks fellas.
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Old 05-26-2010, 04:00 PM   #2773
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Quote:
Originally Posted by reenmachine View Post
Just kidding. My F104PRO has been crashed more than probably any of them built!

What parts have you replaced? Small tweaks to the front plastic pieces can equate to good-sized differences way out at the wheels.
I've replaced everything of suspension on the left except the kingpin and the spring.

Quote:
Originally Posted by reenmachine View Post
Also, how are you measuring the camber?
I bought me the hudy pan car setup system some weeks ago.
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Old 05-27-2010, 08:28 AM   #2774
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Ive put together my first kit F1 Pro which includes the ball diff that I have zero experience with. My question is, How do you know how much grease to put on the ball bearings for the diff?
I found out after a small electronic / motor test that I put way too much. The grease went flying all over the workbench and car. Instant conclusion: too much grease. Should I take the diff apart and clean it up and start over?

I know your having a laugh over this cuz its a NOOB mistake

Any response is appreciated
Thanks
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Old 05-27-2010, 09:49 AM   #2775
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Default Advice from the Diff Dude

I built the diff in my 104 using Dave Irrgang's (via Garry Owen) diff method. Works really well. The key is to dull the diff rings with 600 grit sandpaper, clean them well and use very little lube.

Here's the full description:

http://www.teamirsrc.com/techtips.html
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