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HelicopterThunder TigerOther › Raptor 60 Build woes
12-19-2003 01:13 PM  13 years agoPost 21
Peter65

rrKey Veteran

Roxby Downs, South Australia.

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Bob7657 had the same problem. I am assuming that the commonality between the 60V2 and 90 is the cause of this issue.

I have had the bearings blocks swapped around and it made little difference. I could not bolt in the upper bearing block regardless. The current shaft may have the locking ring holes out of place, maybe ?

I will have another play with it. It's not going skyward for a few weeks yet anyhow.

Just to get this right..

Upper bearing block = deep side up?
Lower bearing block = deep side down?

Just changed to this config and it was just as bad. Bottom screw holes in shaft will not line up with main gear.

Reference Measurement
Main Shaft
Length = 21.4cm
upper & lower jesus bolt holes are 12mm from ends
locking ring holes are 11.5 cm from one end and 9.9cm from the other.

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 01:23 PM  13 years agoPost 22
psawya

rrKey Veteran

Woodinville, WA

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I have edited my prior post. The upper block goes with the flush side down and the lower bearing block goes with the flush side up. Silly me, I referenced the picture in the parts breakdown and it is wrong. I just looked at my R90 and it is right. Flush sides inward to the main gear. The mast should be with the 9.9 end down. Have you tried installing the upper block with the lower block loose?

Pete

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12-19-2003 01:32 PM  13 years agoPost 23
capebob

rrVeteran

Cape Coral, FL

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We may have found the problem. Measuring from the end of the shaft to the center of the holes the top is 12.18mm the bottom is13.38mm. They are not the same.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 01:32 PM  13 years agoPost 24
Peter65

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Roxby Downs, South Australia.

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Next possibility..

The main gear is sitting on top of both the pinion and tail drive gear. Normal?
This is giving me no adjustment of the shaft vertically. If everything else is right.

I am getting close to a full strip and rebuild

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 01:35 PM  13 years agoPost 25
Peter65

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Roxby Downs, South Australia.

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So it seems that the shaft has been changed ?
I am about 5 - 7 mm out of alignment with the bottom holes without placing any pressure on the top of the shaft to bolt it up.

BTW. My fix I mentioned earlier worked well. The main shaft was at the bottom of the lower bearing. No way that was coming out. But I would ratehr build it as per instruction if possible

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 01:39 PM  13 years agoPost 26
capebob

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Cape Coral, FL

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This may sound silly but if you have built an R30 before where the locking collar goes above the top bearing on the R60 the locking collar goes below the top bearing.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 01:41 PM  13 years agoPost 27
Peter65

rrKey Veteran

Roxby Downs, South Australia.

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Collar is definately under the bearing.

I think maybe we are on to something with the difference in measurements of the shaft.

Also as I mentioned above. the main gear is sitting directly on top of the pinion and tail drive gears. I would have thought a small clearence would be there? As it is the bottom bearing position makes not difference to the height of the shaft. I can not see where in here I could have got something that wrong.

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 01:57 PM  13 years agoPost 28
capebob

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Cape Coral, FL

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Peter,

There is about 1mm clearance between the main gear and the top of the white tail drive gear. The red tail drive gear is perfectly even with the white tail drive gear. Also, there is a very slight clearance between the bottom of the main gear and the top of the clutch housing, about .25mm.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 01:58 PM  13 years agoPost 29
G.Man

rrProfessor

Bristol

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Peter65

turn the grey gear up the other way....

Don't Email me as I wont reply - PM Only (spam countermeasures)

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12-19-2003 02:01 PM  13 years agoPost 30
capebob

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Cape Coral, FL

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Peter,

From the center of the bottom hole to the center of the locking collar hole is about 85.38mm. From the center of the top hole to the center of the locking collar is 102.41mm. The critical measurment is the distance from the bottom hole to the locking collar hole.

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 02:04 PM  13 years agoPost 31
capebob

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Cape Coral, FL

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Peter,

Galifrey may be right. Your grey gear may be upside down, but you may have checked that already. Here is a picture of the main gear. Sorry it's so fuzzy.



Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 09:41 PM  13 years agoPost 32
Peter65

rrKey Veteran

Roxby Downs, South Australia.

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Thanks guys,

You was right about the grey gear. I could have sworn I looked at it earlier. But yes it was upside down. Now I feel like the worlds biggest idiot. I appreciate all the replies and efforts. I know you were pulling you hair out as much as me.

Glad I didnt resort to grinding the collar as Bob advised.

Bob..Please check your gear orientation.

I still like the minor mod I made and will keep it.

Cheers all and thanks for all he help. I owe you's a beer or three or four.

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 09:47 PM  13 years agoPost 33
Dazzler

rrElite Veteran

Ohio

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Thats what I said on pg1 of this thread, to make sure the grey gear was not upside down. Dont feel like an idiot, alot have done that, thats why I 1st pointed that out!!!

Daz...

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12-19-2003 10:20 PM  13 years agoPost 34
Peter65

rrKey Veteran

Roxby Downs, South Australia.

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Dazzler,

I know you said to check it and I guess I just gave it a cursory look. ?
But now that I think about it it made the most sense. As my gears were what was actually causing the binding on each other.

I guess I just could see it for looking. So I am very greatful for your help.

Thanks

I owe everyone a beer. 2 for you

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-19-2003 11:40 PM  13 years agoPost 35
capebob

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Cape Coral, FL

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Peter,

You can chalk it up to hanging upside down all your life. Seriously, I'm glad you worked it out.

Cheers,

Bob

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-19-2003 11:49 PM  13 years agoPost 36
Peter65

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Roxby Downs, South Australia.

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Who's upside down

Laughing at yourself will lengthen your life. Laughing at me will shorten it...

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12-20-2003 12:32 AM  13 years agoPost 37
psawya

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Woodinville, WA

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As my gears were what was actually causing the binding on each other.
That would have been good information to post on page 1 also

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12-20-2003 12:45 AM  13 years agoPost 38
capebob

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Cape Coral, FL

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Who's upside down

See!

Success is the ability to go from one failure to another with no loss of enthusiasm. Churchill

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12-20-2003 12:58 AM  13 years agoPost 39
Bob7657

rrApprentice

Mission, TX

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Stupid me!

Well,
As bad as I hate to admit it mine was upside down also. Thanks so much to everyone you are the best. CapeBob I owe you a dinner, look me up some time. Will you be going to the contest clinic Gordie is having IRCHA etc?

Any way I think I will be busy pulling my foot out of my mouth and I guess I will turn the gear around. I guess no matter how long you have worked on the models you can miss something so simple!!!!!!!

Bob

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12-20-2003 01:56 AM  13 years agoPost 40
psawya

rrKey Veteran

Woodinville, WA

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That's how our minds work. We just know that we have installed everything correctly and refuse to think otherwise. I have made similiar mistakes myself before, funny how sometimes we are so confindent in our abilities that it HAS to be something else. A good lesson for us all. Always keep an open mind, we just might learn something!

Regards,
Pete

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