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Topic-icon Nose Gear shimmy on an Arrow

  • John Barco
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2 weeks 3 days ago #1460

Nose gear shimmy so bad that it has damaged two nose tires. Been put up on jacks and inspected several times. Shimmy damper replaced. Steering bungees' checked. Seems OK, but obviously there is something wrong. has anyone had any experience with this bad of a problem? Any advice would be appreciated.

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2 weeks 4 hours ago #1462

If the Arrow has a steering arm containing two rollers, check the gap between the rollers and the gear arm. When on the ground, the maximum gap should not exceed .010. If greater, have new rollers made to your dimensions.

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  • John Barco
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1 week 6 days ago #1464

Thanks, but no, this has already been checked. Several pairs of eyes have looked at it but have not yet found the problem.

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1 week 3 days ago #1465

Hi, Have you balanced the nose wheel/tire assembly?

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  • John Barco
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1 week 3 days ago #1466

Yes, all of the regular issues have been looked at repeatedly. We've even considered the mains and breaks as possible sources of induction. Still on the hunt for a solution.

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1 day 16 hours ago #1478

Since all the obvious and well-known sources have been checked, I suggest you use a hoist to lift the nose gear off the ground and start pushing, pulling and tugging on the nose gear tire/wheel assembly in an attempt to find out what is loose. For instance, the two bushings in the engine mount/nose gear support weldment that the nose gear trunnion pivots on could be extremely worn, which would allow the nose gear trunnion to move in the bushings. Or the welded engine mount might be slightly bent.
There has to be a cause and after checking the obvious, it's time to move on to less likely suspects.
Please let me know when you discover the cause of the shimmy.

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