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Bikersurgeon · 02-23-2014, 05:51 PM

Well fired her up today and just after the skids left the ground the engine slowed then died. Took her back to the table and pulled on the starter and sure enough- locked up. Took the pull starter off and turned the crank lug by hand and it was stuck hard. Tore the front off and pulled the motor. Amazingly the piston and sleeve have just a couple of fine lines, but the bearing between the crank and connecting rod is way shot....it has at least a mm of play, maybe 1.5 or more, and when turning the crank THAT is what is locking at certain positions. Looking at horizon a new crank and con rod are about 60 bucks, gaskets are cheap, crank bearings are 7 bucks. Guess I will rebuild...wish I had just bought a new engine to start with (got this "new" one on eBay for 200 bucks). I do wonder if it is something I did...I never ran it lean unless maybe it had an air leak between the carb and insulator (just made a gasket for that last night after realizing it was missing)...I used 32:1 mix and it smoked just a tad, and intermittently 4 stroked. I guess I don't really have a question, just needed to rant lol.

Dennis P · 02-23-2014, 09:59 PM

Check out Daves Discount engines as they had some 20EI parts on clearance really cheap a bit back .

Bikersurgeon · 02-23-2014, 10:06 PM

Thank you!

Bikersurgeon · 02-23-2014, 10:29 PM

I have a question after all...when you guys rebuild these do you grease the bearings, or use rebuild lube...or ATF...or 2 cycle oil? Thanks.

Bustedmp · 02-24-2014, 08:16 PM

Do not use grease when reassembling your engine. Use 2 cycle oil to coat everything. Grease will not clear out of the bearings and it will not allow the oil/gas mix in to lube them.

Bikersurgeon · 02-24-2014, 09:07 PM

Cool, thanks man. Parts arrive Thursday...can't wait....maybe it will all be right finally!

Bikersurgeon · 02-26-2014, 04:32 PM

Parts are all here....it will be better than before...we have the technology...

Engine is rebuilt with new crank and crank bearings and new upper Conrod bearing. Have a cnc carb insulator with Teflon gaskets...hwc ignition box (bought that on an impulse...it will directly accept 2s lipo and according to scuttlebutt I guess it is easier on the batteries). Also have a smooth-as-butter metal trex 600 tail and a lynx moas fuel clunk.

I think I like working on me more than flying em....which is fortunate since I tear up so much lol.

strat1960s · 02-26-2014, 05:36 PM

Do you have to mod anything to use the Trex 600 tail? You're flying a G20, right?

Ted

Bustedmp · 02-26-2014, 06:46 PM

Quote:

Originally Posted by Bikersurgeon

I think I like working on me more than flying em..

While I do love tinkering/working on them, I am not sure I would say I enjoy it more than flying.

Bikersurgeon · 02-26-2014, 11:24 PM

Touché...I was caught up in the moment lol

Bikersurgeon · 02-26-2014, 11:27 PM

Quote:

Originally Posted by strat1960s

Do you have to mod anything to use the Trex 600 tail? You're flying a G20, right?

Ted

I have not yet flown it with the trex 600 tail...the screw mounts that the link balls screw into on the trex grips are longer than the g20....I am so far using the g20 slider and the links are on the balls at about 45 degrees, if that makes sense. It feels great, and I think it will work, but I may get a trex slider just to be sure. Yes it's a g20.

gajomac · 02-27-2014, 09:17 PM

Hate to hear of your misfortune with your motor, MIne still is not up to being called fight ready,, still 4 stroking I guess, from the videos I've watched and listened too that's what it sounds like,, But, when I lean it out to where it sounds good and rev's good, it will not Crank for _eeeeeeeeeeeeell, I'm About ready to sell it all and get an E model, I now how to charge a battery!!!

Bikersurgeon · 02-27-2014, 10:33 PM

Quote:

Originally Posted by gajomac

Hate to hear of your misfortune with your motor, MIne still is not up to being called fight ready,, still 4 stroking I guess, from the videos I've watched and listened too that's what it sounds like,, But, when I lean it out to where it sounds good and rev's good, it will not Crank for _eeeeeeeeeeeeell, I'm About ready to sell it all and get an E model, I now how to charge a battery!!!

Man wish I had enough experience with the gas platform to help...shot in the dark- do you have good gaskets on both sides of the carb insulator? Air leaks seem to do weird things.

ngin · 03-01-2014, 02:20 PM

Quote:

Originally Posted by gajomac

Hate to hear of your misfortune with your motor, MIne still is not up to being called fight ready,, still 4 stroking I guess, from the videos I've watched and listened too that's what it sounds like,, But, when I lean it out to where it sounds good and rev's good, it will not Crank for _eeeeeeeeeeeeell, I'm About ready to sell it all and get an E model, I now how to charge a battery!!!

What battery are you using to power the EI unit?
Is it the stock EI unit or the RCXcel unit?
What do you mean by"Crank for _eeeeeeeeeeell"

02-23-2014, 05:51 PM	#1 (permalink)
Bikersurgeon Registered Users My HF Map location Join Date: Dec 2011	Wow...ok new question Well fired her up today and just after the skids left the ground the engine slowed then died. Took her back to the table and pulled on the starter and sure enough- locked up. Took the pull starter off and turned the crank lug by hand and it was stuck hard. Tore the front off and pulled the motor. Amazingly the piston and sleeve have just a couple of fine lines, but the bearing between the crank and connecting rod is way shot....it has at least a mm of play, maybe 1.5 or more, and when turning the crank THAT is what is locking at certain positions. Looking at horizon a new crank and con rod are about 60 bucks, gaskets are cheap, crank bearings are 7 bucks. Guess I will rebuild...wish I had just bought a new engine to start with (got this "new" one on eBay for 200 bucks). I do wonder if it is something I did...I never ran it lean unless maybe it had an air leak between the carb and insulator (just made a gasket for that last night after realizing it was missing)...I used 32:1 mix and it smoked just a tad, and intermittently 4 stroked. I guess I don't really have a question, just needed to rant lol. __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-23-2014, 09:59 PM	#2 (permalink)
Dennis P Registered Users My HF Map location Join Date: Aug 2010 Location: Rycroft , Alberta, Canada	Check out Daves Discount engines as they had some 20EI parts on clearance really cheap a bit back . __________________ Rycroft Wings & Blades (MAAC Club) Rotor-Tech Blades

02-23-2014, 10:06 PM	#3 (permalink)
Bikersurgeon Registered Users Thread Starter My HF Map location Join Date: Dec 2011	Thank you! __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-23-2014, 10:29 PM	#4 (permalink)
Bikersurgeon Registered Users Thread Starter My HF Map location Join Date: Dec 2011	I have a question after all...when you guys rebuild these do you grease the bearings, or use rebuild lube...or ATF...or 2 cycle oil? Thanks. __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-24-2014, 09:07 PM	#6 (permalink)
Bikersurgeon Registered Users Thread Starter My HF Map location Join Date: Dec 2011	Cool, thanks man. Parts arrive Thursday...can't wait....maybe it will all be right finally! __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-24-2014, 08:16 PM	#5 (permalink)
Bustedmp Registered Users Join Date: Oct 2013	Do not use grease when reassembling your engine. Use 2 cycle oil to coat everything. Grease will not clear out of the bearings and it will not allow the oil/gas mix in to lube them.

02-26-2014, 04:32 PM	#7 (permalink)
Bikersurgeon Registered Users Thread Starter My HF Map location Join Date: Dec 2011	6 million dollar heli Parts are all here....it will be better than before...we have the technology... Engine is rebuilt with new crank and crank bearings and new upper Conrod bearing. Have a cnc carb insulator with Teflon gaskets...hwc ignition box (bought that on an impulse...it will directly accept 2s lipo and according to scuttlebutt I guess it is easier on the batteries). Also have a smooth-as-butter metal trex 600 tail and a lynx moas fuel clunk. I think I like working on me more than flying em....which is fortunate since I tear up so much lol. __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-26-2014, 05:36 PM	#8 (permalink)
strat1960s Registered Users Join Date: Oct 2007	Do you have to mod anything to use the Trex 600 tail? You're flying a G20, right? Ted __________________ Ted Schubert I always have fun. Some times are more fun than others. I can't remember half the crap I forgot.

02-26-2014, 11:24 PM	#10 (permalink)
Bikersurgeon Registered Users Thread Starter My HF Map location Join Date: Dec 2011	Touché...I was caught up in the moment lol __________________ AE .50 apache, TT .90 TOW MD500, 2 x JR ergo 60, TT x50 titan, TT 50, TT 30, 3 x MTe325, MSH Mini protos, trex 450 Apache, MT cobra, Airwolf 450, Blade 400, century 50 Bell 47, MT EC135, RADIKAL G20, trex450 MD500, Protos 500

02-27-2014, 09:17 PM	#12 (permalink)
gajomac Registered Users Join Date: Jul 2012	Hate to hear of your misfortune with your motor, MIne still is not up to being called fight ready,, still 4 stroking I guess, from the videos I've watched and listened too that's what it sounds like,, But, when I lean it out to where it sounds good and rev's good, it will not Crank for _eeeeeeeeeeeeell, I'm About ready to sell it all and get an E model, I now how to charge a battery!!! __________________ DH 9104 / Blade SR x2 / Align 450 V-2 / EXI 500 / HK500 scale UH1 / RC EYE Quad/ Century Radikal G-20 gasser/ Eflite Appentice 15e

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