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Topic: eb4 s2 pro engine stalls

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mstols
Begginer

Joined: 28 November 2005
Location: South Africa
Online Status: Offline
Posts: 5

Posted: 28 November 2005 at 4:12pm \| IP Logged

I resently bought this buggy from LHS. When the buggy lands hard or hits something, the engine would stall.

How can this problem be rectified?

Jeff_OKC
Senior Member

Joined: 24 August 2005
Location: United States
Online Status: Offline
Posts: 96

Posted: 28 November 2005 at 5:44pm \| IP Logged

It's from the chassis flexing and rubbing the flywheel causing it to stop.

What you need to do is get the better braces on it to cut down on the chassis flex.

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mstols
Begginer

Joined: 28 November 2005
Location: South Africa
Online Status: Offline
Posts: 5

Posted: 29 November 2005 at 12:15am \| IP Logged

It looks like the flywheel is hitting the brakes when the chassis flexes. Do you know if I can use a different fly wheel? (which one)

Does anyone know of a part number for this brace?

Jeff_OKC
Senior Member

Joined: 24 August 2005
Location: United States
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Posts: 96

Posted: 29 November 2005 at 1:54am \| IP Logged

Do you have any shims in behind the flywheel? Like behind the tappered collar? If the buggy was RTR then their might be some there and it might be worthwhile taking the engine out to see if you can remove those shims. I actually jsut had to do the exact thing on a buggy when I went to quad brakes.

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mstols
Begginer

Joined: 28 November 2005
Location: South Africa
Online Status: Offline
Posts: 5

Posted: 29 November 2005 at 2:18am \| IP Logged

There might be. It is the RTR eb4 s2 Pro. I will check that.

mstols
Begginer

Joined: 28 November 2005
Location: South Africa
Online Status: Offline
Posts: 5

Posted: 29 November 2005 at 4:52pm \| IP Logged

I had a look at my buggy today. Founf the problem. The flywheel is rubbing against the brake pad bolt when the chassis flexis.

It is quite hard for me to understand why I must fix some thing that never broke. It is hard to believe that TT can build a buggy and put it into production with such a bad design fault.There isn't must to do to the centre diff to create a clearance.

I tried to remove the spacer behind the fly wheel to move it backwards to create more of a clearance. If the spacer is removed, the flywheel rubs against the engin block.

One other option would be to go and cut half of the flywheel width away. But such a thin flywheel would damage the starter box wheel.

Has anyone found a solution to fix this problem on this buggy. (eb4s2 pro)????????????

Jeff_OKC
Senior Member

Joined: 24 August 2005
Location: United States
Online Status: Offline
Posts: 96

Posted: 29 November 2005 at 7:11pm \| IP Logged

You could try a small shim behind the tappered collar that whould keep the flywheel far enough away from the engine. That and the better braces...

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mstols
Begginer

Joined: 28 November 2005
Location: South Africa
Online Status: Offline
Posts: 5

Posted: 30 November 2005 at 4:58pm \| IP Logged

Found a solution after stripping half of my buggy. I drilled a small countersunk at the hole on the brake pad next to the flywheel, and replaced the standard screw with a new countersunk head screw. I've now got a gap of almost 2mm between flywheel and brake pad.

Thanks for all the advice.

Jeff_OKC
Senior Member

Joined: 24 August 2005
Location: United States
Online Status: Offline
Posts: 96

Posted: 01 December 2005 at 4:16pm \| IP Logged

No problem, glad you got it worked out.

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rab_68
Begginer

Joined: 20 November 2007
Location: Australia
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Posts: 3

Posted: 20 November 2007 at 3:17am \| IP Logged

Hi i have eb4 s2 pro and have had to pull it apart and got centre shafts mixed up does any one know wich shaft goes where one is slightly longer than the other one i also found a rubber o ring does any body knows where this goes??. any help will great thanks

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