Dan Fletcher Super Stock Videos - Opinions
 

I'm looking for some opinions on what you think the vibration in the video might be coming from. Dan has been fighting a vibration for the last few races, and can seem to find out what it might be.

The first video is from inside the car, go to 30 seconds to see and here the vibration.

The second video is the camera pointing at the u-joint. You will here a noise when he slows down but it is the brakes not the vibration. Its hard to hear the vibration in this video, but there is allot of movement in the pinion. Not sure that is the reason, but I thought it might be a place to look.

Any ideas, feel free to post.

Re: Dan Fletcher Super Stock Videos - Opinions
 

Might want to look at the tail shaft bushing. Just a thought.

Re: Dan Fletcher Super Stock Videos - Opinions
 

Had a similar problem when I had my HR car and as Larry suggested it was the tailshaft bushing.

Re: Dan Fletcher Super Stock Videos - Opinions
 

My limited experience with vibrations involved a bad shock (front).
Was most noticeable after the run during shutdown. A fellow racer (Rick Ryan) noticed a bouncing motion of my front wheel ...told me to check my front shock ...I did ...he was right. Thanks Rick and Jerry Ryan!
PS Congrats to Dan Fletcher on his latest Wins! Keep us informed on the final solution
Doug Jonak

Re: Dan Fletcher Super Stock Videos - Opinions
 

By the video I don't believe it is driveshaft, I think you would see it on video when it happened,may be able to see on slow motion? I would think you would see moving during vibration,don't believe it is in the pinion angle changes or would have other spots in the run,because looks like angle changes are about the same,didn't notice a change when it vibrated.
In a way almost sounds like gear noise
Does this only happen at this one point during shutdown?
Mike Taylor 3601

Re: Dan Fletcher Super Stock Videos - Opinions
 

If you have not checked it already I would check the ring and pinion and bearings. It sounds like it is when you are slowing down so it would not be on the load side of the gear but on the coast side. Plus all the loads are in opp directions on the gears and bearings. Hope you find it. Let us know..

Re: Dan Fletcher Super Stock Videos - Opinions
 

I think its the loose nut.............behind the wheel!

Re: Dan Fletcher Super Stock Videos - Opinions
 

@ 26,27 sec it looks like the u joint is lose in the yoke.drive shift move but yoke doesn't.But I could be wrong

Re: Dan Fletcher Super Stock Videos - Opinions
 

The bushing in my glide came out the rear while I was at Bandimere for ET Finals. The vibration was bad right on shutdown and deceleration. Nothing on acceleration. And it leaked, so it was noticeable when sitting.

Re: Dan Fletcher Super Stock Videos - Opinions
 

Besides being interested in the outcome, that's some cool video.

Bruce Deveau