The never ending engine thread, East-West - Page 851 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-25-2014, 10:43 PM   #8501
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Re: The never ending engine thread, East-West


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Originally Posted by Dale Hunter View Post
I could just here Svetlana, saying Smooth, slow down in Russian.

-Dale-
If a sukhoi is good enough for svetlana it's good enough for me. Deriks. Oming to visit this weekend Dale. Snow or not I think there will bee some flying going on.
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Old 03-25-2014, 10:45 PM   #8502
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Re: The never ending engine thread, East-West

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If a sukhoi is good enough for svetlana it's good enough for me. Deriks. Oming to visit this weekend Dale. Snow or not I think there will bee some flying going on.
See if you can get a phone connection over the Great Divide this week-end. I expect to be available to take such an important call.

-Dale-
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Old 03-25-2014, 10:46 PM   #8503
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Re: The never ending engine thread, East-West

Jimmy? He will slowly fall behind again!
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Old 03-25-2014, 10:49 PM   #8504
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Re: The never ending engine thread, East-West

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Jimmy? He will slowly fall behind again!
In what units are we measuring in?

-Dale-
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Old 03-26-2014, 04:00 AM   #8505
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Re: The never ending engine thread, East-West

All of the best engine guys I know are on this thread so I need to ask you a real question (as opposed to the B.S. that normally passes as 'topics' around here) LOL.

I'm swapping a DA200L into the big Dalton (in place of a cranky DLE222). The mounting pattern is exactly the same and overall this is an easy swap. I just discovered a problem though: The prop bolt pattern is the same between the two engines but the DA uses 5mm bolts whereas the DLE uses 6mm bolts. My spinner backplate and the prop are obviously drilled for the 6mm bolts

Question: can I install some brass bushings into the prop hub and the spinner backplate to make up the difference
Any other suggestions?

Thanks guys.
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Old 03-26-2014, 04:51 AM   #8506
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Re: The never ending engine thread, East-West

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Originally Posted by Trumpetman View Post
All of the best engine guys I know are on this thread so I need to ask you a real question (as opposed to the B.S. that normally passes as 'topics' around here) LOL.

I'm swapping a DA200L into the big Dalton (in place of a cranky DLE222). The mounting pattern is exactly the same and overall this is an easy swap. I just discovered a problem though: The prop bolt pattern is the same between the two engines but the DA uses 5mm bolts whereas the DLE uses 6mm bolts. My spinner backplate and the prop are obviously drilled for the 6mm bolts

Question: can I install some brass bushings into the prop hub and the spinner backplate to make up the difference
Any other suggestions?

Thanks guys.
Just bolt it together like that Gordon. The Extra clearance around the bolt won't hurt anything. I actually tend to drill my props one size bigger so there is no binding. Binding will cause bolts to break. You should be fine
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Old 03-26-2014, 06:32 AM   #8507
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Re: The never ending engine thread, East-West

I agree with Brad!!! I drill all my props to 6mm bolts even though many of mine use 5mm.... allows us to swap props easier without worrying about hole size and which motor has which config.

The 5mm bolts inside 6mm holes is fine. Don't waste your time with bushings.

But Gordon... the biggest advantage... it's lighter

Cheers

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Old 03-26-2014, 06:49 AM   #8508
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Re: The never ending engine thread, East-West

I agree with Brad and Trevor. Have done it lots myself with props and never an issue.
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Old 03-26-2014, 06:55 AM   #8509
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Re: The never ending engine thread, East-West

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In what units are we measuring in?

-Dale-
Not sure which units Jim measures his Rum in!
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Old 03-26-2014, 07:33 AM   #8510
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Re: The never ending engine thread, East-West

Gordon, I have the same issue going from my GP176 drilled props (6mm). To my ZDZ 160 (5mm). To which I pabricated only 3 bushings for alternate bolt holes. This configuration worked just fine.
But it is nice to know what the majority are doing. And, I may drop the bushings. At this point it makes me feel better. I do like Bradleys explanation.

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