The never ending engine thread, East-West - Page 607 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-14-2014, 09:25 AM   #6061
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Re: The never ending engine thread, East-West


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All recomendations help. I figure since the snow is pretty deep I will have time. Time to build a stand. Also have a couple engines of questionable quality that could go on a stand and be checked out. Supposed to blow 50kms today so flying is out of the question . Thanks

I acquired a 3w 80 just in case I don't like the DA.
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Old 01-14-2014, 09:40 AM   #6062
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Re: The never ending engine thread, East-West

Nice Phil. Run over that rattletrap DA85 and stick with the 3W80!!!

I've had both - the DA has more power, but my 80xi was one sweet, sweet motor - refinement out that wazooo!! If you get an opportunity to acquire the 3W85cs, it's a must... a monster torquer and soo smooth!!
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Old 01-14-2014, 10:25 AM   #6063
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Re: The never ending engine thread, East-West

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Nice Phil. Run over that rattletrap DA85 and stick with the 3W80!!!

I've had both - the DA has more power, but my 80xi was one sweet, sweet motor - refinement out that wazooo!! If you get an opportunity to acquire the 3W85cs, it's a must... a monster torquer and soo smooth!!
That brings another option to mind. Since it hasn't been ran the DA85 could be sold and another engine sourced . Maybe a mvvs,zdz,another 3w,GP heard great things about them, could be be found.
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Old 01-14-2014, 03:57 PM   #6064
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Re: The never ending engine thread, East-West

Ya, that USA made stuff smokes and shakes to much. Unload it.
http://youtu.be/yNi_GooEb_o
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Old 01-14-2014, 04:01 PM   #6065
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Re: The never ending engine thread, East-West

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This will be a great topic for Dale, LOL

My prefered method is to run it on synthetic from day one, tune it as best possible and beat the living tar out of it. Except for a Mintor60, I've never had an issue with an engine regardless of origin, LOL

Dale.... interested to hear your thoughts
Ditto. I run a little rich for a while though. I use honda hp2
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Old 01-14-2014, 04:07 PM   #6066
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Re: The never ending engine thread, East-West

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Most important:
Add oil to the crankcase before starting. Stand on it's nose to get oil to the front of the crankcase. Then run first tank of fuel at 30:1. Run the excess oil out by running. Then you know the front bearing has never run in a poor lubricated state. Tune the needles to run best, not excessive rich. Run the first 10 Litres at 32:1, with oil of choice. Like Jeff, watch your heat cycles. Not long high heat cycles in the beginning. Getting progressively longer.
Or, as a part of my hobby, I like to run them in on a stand, watching the heat cycles. until it gets to the point of needing to be leaned on the low needle, say the 8-10L mark.
Hope this helps.
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That qualifies as CT, by definition (not country of origin).

-Dale-
With dales mentoring I also put oil in the motor and stand it on its nose for the night.
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Old 01-14-2014, 05:47 PM   #6067
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Re: The never ending engine thread, East-West

Why they have sealed bearings except for the ends of the con rod? Am I missing something here?
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Old 01-14-2014, 06:04 PM   #6068
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Re: The never ending engine thread, East-West

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Why they have sealed bearings except for the ends of the con rod? Am I missing something here?
Do they all?
My advice is very generic. Goes back to glow days, now to my ZDZ 90, etc.

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Old 01-14-2014, 06:17 PM   #6069
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Re: The never ending engine thread, East-West

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Do they all?
My advice is very generic. Goes back to glow days, now to my ZDZ 90, etc.
-Dale-
Dale, so you remove a jug to add the oil? The same oil your adding to your fuel? How much oil?
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Old 01-14-2014, 06:48 PM   #6070
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Re: The never ending engine thread, East-West

All the motors I have worked on have sealed crank bearings Dale with the exception of the rear bearing in the early DL/DLE111 engines and the G62. The ones like the one in the AW Extra 300 you have are sealed. I do like to give my new engines a good rinse with gas oil mix and then pour a bit of oil in the exhaust ports and let it run down the ports after. Then I rotate it around to cover everything inside and turn it over a bunch to coat the wrist and con bearings. I only do this to the Chinese engines. DA, 3W, etc I don't bother.
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