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HomeAircraftHelicopterKasama Srimok 90 › Starting build
12-31-2010 09:38 PM  7 years agoPost 21
whiskey

rrVeteran

Richmond,Va. USA

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Keep your rants to your thread
Im just trying to build this kit and receive some positive help with it. If you want to bash the brand then bash away. I really dont give a &*@%. But dont jump on everyone else's threads and repeat the same crap that you have said on your thread. We get it, you think it is a piece of crap. Either throw it away or use it as a paper weight but let me get some positive imput from people that manage to keep these heli's in the air. OK?

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01-01-2011 06:53 PM  7 years agoPost 22
1Installer

rrNovice

Ramsey, MN- USA

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I finally got a chance to start on the tail. Both bearings were loose on the shaft like everyone elses. I tried something a little different and it appears to have worked. Mark the TT for the bearing locations. Put a drop of THIN CA where the bearings will be glued in place. Slowly rotate the shaft for several minutes. This will gradually build up a thin film, in effect- enlarging the TT. Fog the glue with your breath ( like cleaning glasses) to speed up the curing. The bearings fit snug now and are square and concentric with the shaft.
Lubricate the inside of the boom with denatured alcohol in stead of oil to insert the TT. The bearing supports will slide in easily, but will stick to the boom when the alcohol evaporates.
Ron

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01-01-2011 11:00 PM  7 years agoPost 23
rexxigpilot

rrProfessor

Florida

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Good advice 1Installer. It sounds like you've built many a model before. I suspect incorrect installation of the TT bearing blocks (oil or greese instead on alcohol) is the cause of vibration issues for many, not the engine mounts.

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01-02-2011 02:09 AM  7 years agoPost 24
petmotel

rrKey Veteran

DeKalb, IL.

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Both bearings were loose on the shaft like everyone elses.
If the need should arise (God forbid! LOL) to replace the torque tube assembly, they now come with the bearings glued in place. Since they are no doubt jig secured while the adhesive sets, this too should be a non-issue going forward.

I checked my gear assembly in the Srimok I'm currently working on, it also had about a half mm freeplay at the outer OD. Movement is due to the clearance tolerances between auto shaft, and main shaft. As a side note, main shafts had some issues in the past, they're made in-house now (if you can manage to find one in stock).

Jay

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01-02-2011 03:22 AM  7 years agoPost 25
1Installer

rrNovice

Ramsey, MN- USA

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I keep watching the US dealers for parts and am of course on the notification lists. My biggest problem is convincing my wife that I really, really need to buy it while it is in stock. I think she finally got the idea after I went to about 4 sites to show her. What really sucks is when one dealer as a few of the items you need and another two have the rest. I never seem to have a big enough order from any of them to get the free shipping.
I did find one European seller that had TT and main shafts, but I am really not in that big of a hurry. I'm not going flying when I have to worry about the fuel gelling. Ok- it's not that cold, but anywhere around 0F is nuts!
Jay- Thanks for checking your main gear/one way shaft for me. I wasn't sure how much I should expect, but it looks like I'm in the range.
Has anyone had an issue with the phasing pins hitting the swash? I'm getting about 12.5 +/- collective (49% in the radio) and at full pitch the swash hits the pins at about 4' aileron cyclic. The pins stick below the sleeves on the washout base about 1MM. The head came already built, but I have been redoing everything else, so why not it too.

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01-02-2011 04:25 AM  7 years agoPost 26
TINY

rrApprentice

eunice louisiana

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sorry
sorry about ranting on yout thread i apologizei was just madi spent weeks building that bird by the way you can get parts for your kasama from the uk midland helicopters ask for trevor they have tt in stock i had to order myne from him cost like 40 us also you can make your own shafts if you have a crash and cant fird any shafts use a easton 75xx arrow shaft thats what kasama uses.im re building my kasama going to try it again hope bu have better luck than i did

Infamous Butcher Angel Of Death

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01-02-2011 05:03 AM  7 years agoPost 27
whiskey

rrVeteran

Richmond,Va. USA

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No problem
Better luck the second time around.-Jay

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01-02-2011 05:16 AM  7 years agoPost 28
1Installer

rrNovice

Ramsey, MN- USA

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I figured out the problem on my swash. The crank to swash links are a little long in the manual. I set mine about as short as they go, and now I get full aileron at full pitch. I wish the manual did a better job of explaining all the different link positions on the FB as well. I'll probably go FBL about halfway through this season anyway.
Glad you're going to give it another go Tiny. I hope you win round two.

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HomeAircraftHelicopterKasama Srimok 90 › Starting build
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