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Old 08-13-2008, 09:06 PM   #493 (permalink)
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Default Re: CRRC Pro GF26I





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Old 08-13-2008, 09:18 PM   #494 (permalink)
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Default Re: CRRC Pro GF26I

Just in case the last 2 posts didn't help you get the message, I got the engine to run, and I flew a fairly successful test flight of 15 minutes.

After I plugged the metal thing back in the carb with JB Weld, I put the carb back on the engine, and it was doing the same sh!t. I lost my mind and threw the carb in my fish tank. I knew this had something to do with the carb, so I pulled a Walbro WT 419 out of my reliable BCMA 26 and bolted it on to the CRRC. Perfect fit.

The venturi thingamabob is a little smaller on the 419, so I lost a couple RPM, but man, this thing runs like a Honda. No problems.

There is one thing though. The engine significantly richens up in flight, so I'm gonna have to run a line from the diaphragm plate into the fuse.

So yea, that's about it. It's been a long stress-inducing, life-shortening journey, but I learned a whole lot about carbs and tuning, and I think I'll be set for now.

Thanks for all your guys' help. This pic. is no longer a mark of shame.

-Anderson
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File Type: jpg CRRC carb..jpg (251.8 KB, 130 views)
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Last edited by 3Dguy; 08-13-2008 at 09:30 PM.
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Old 08-13-2008, 10:35 PM   #495 (permalink)
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Default Re: CRRC Pro GF26I

Quote: Originally Posted by 3Dguy
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Just in case the last 2 posts didn't help you get the message, I got the engine to run, and I flew a fairly successful test flight of 15 minutes.

After I plugged the metal thing back in the carb with JB Weld, I put the carb back on the engine, and it was doing the same sh!t. I lost my mind and threw the carb in my fish tank. I knew this had something to do with the carb, so I pulled a Walbro WT 419 out of my reliable BCMA 26 and bolted it on to the CRRC. Perfect fit.

The venturi thingamabob is a little smaller on the 419, so I lost a couple RPM, but man, this thing runs like a Honda. No problems.

There is one thing though. The engine significantly richens up in flight, so I'm gonna have to run a line from the diaphragm plate into the fuse.

So yea, that's about it. It's been a long stress-inducing, life-shortening journey, but I learned a whole lot about carbs and tuning, and I think I'll be set for now.

Thanks for all your guys' help. This pic. is no longer a mark of shame.

-Anderson

now take that carb apart and see if their is any crap under the main jet.(the broken one)
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Old 08-14-2008, 09:32 AM   #496 (permalink)
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Default Re: CRRC Pro GF26I

Glad you made progress 3d!

Speaking of venturi's, has anyone tested this engine with and without the black venturi to see if it does anything?


Z
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Old 08-15-2008, 08:19 AM   #497 (permalink)
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Glad you made progress 3d!

Speaking of venturi's, has anyone tested this engine with and without the black venturi to see if it does anything?


Z
i found no apreciable difference i do not run one on my 26 or my 50 so as not to have to cut the cowl.
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I'm tired of being told that I have to "spread the wealth around" to
people who don't have my work ethic. I'm tired of being told the
government will take the money I earned, by force if necessary, and give
it to people too lazy or stupid to earn it.
Robert A. Hall
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Old 08-17-2008, 11:34 PM   #498 (permalink)
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Default Re: CRRC Pro GF26I

Still flying the CRRC and the WT-419...getting ready to switch to 40:1.

So far, it's been very reliable, but this thing likes to kick a little during startup.
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Old 08-18-2008, 02:13 PM   #499 (permalink)
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Default Re: CRRC Pro GF26I

Those of you who have replaced the stock plug with the NGK, have you had any problems with the cap loosening up? I have been told the size of the cap is 16mm and the NGK is only 14mm and it won't lock up properly.
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Old 08-18-2008, 04:17 PM   #500 (permalink)
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Default Re: CRRC Pro GF26I

Mine was loose from the start. I just put a hose clamp around it.
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Old 08-18-2008, 08:31 PM   #501 (permalink)
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Default Re: CRRC Pro GF26I

My bad. The info about the NGK being 14mm proved to be wrong. What kind of hose clamp are you using? Any pictures?
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Old 08-18-2008, 08:39 PM   #502 (permalink)
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Default Re: CRRC Pro GF26I

I just went to an auto parts store and picked up a clamp. It's the one that you have to turn a screw to tighten. I'm trying to upload a pic now.
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Old 08-18-2008, 10:42 PM   #503 (permalink)
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Default Re: CRRC Pro GF26I

I think this is what they are using. I havent had to use one yet though.
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Old 08-18-2008, 11:04 PM   #504 (permalink)
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Default Re: CRRC Pro GF26I

Yep, that one.
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