End play on new K&B .45 sportster  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> End play on new K&B .45 sportster
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End play on new K&B .45 sportster - 5/30/2008 6:22:29 PM   
flyby50


 

Posts: 74
Joined: 7/29/2007
From: warren, OH, USA
Status: offline 		Hello, i have a new K&B .45 sportster, the crank end play seems very excessive for a new engine, i never had this kind of engine and wanted to know if this is normal before i start it, thanks.....
       Post #: 1

RE: End play on new K&B .45 sportster - 5/30/2008 8:08:48 PM   
rcdude7


 

Posts: 987
Joined: 4/12/2003
From: Maryland
Status: offline 		That is a "plain bearing" type engine, it is normal for the crankshaft to float back and forth in the crankcase like that. Use a fuel with lots of castor lube for that type of engine and it will last a long time.

(in reply to flyby50)
       Post #: 2

RE: End play on new K&B .45 sportster - 5/30/2008 8:09:10 PM   
jeffie8696



Posts: 982
Joined: 5/10/2007
From: coralville, IA, USA
Status: online 		As long as the crank pin is not hitting the backplate or the connecting rod is being put in a bind you should not have a problem , even then only while starting with an electric starter but according to Mecoa if you disassemble the engine to check any of these problems you will void your warranty. Good Luck.

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Castor, its like Vitamin C for glow engines.OK now that I have mastered the taking off part and the crashing part what next

(in reply to flyby50)
       Post #: 3

RE: End play on new K&B .45 sportster - 5/30/2008 9:28:57 PM   
flyby50


 

Posts: 74
Joined: 7/29/2007
From: warren, OH, USA
Status: offline 		Thanks guys for your help, i'm all excited to hear this run and it looks like rain, i added extra castor oil to my fuel, i'll let you know how it goes !!!

< Message edited by flyby50 -- 5/30/2008 9:29:59 PM >

(in reply to rcdude7)
       Post #: 4

RE: End play on new K&B .45 sportster - 5/30/2008 9:41:32 PM   
jeffie8696



Posts: 982
Joined: 5/10/2007
From: coralville, IA, USA
Status: online 		I have a K&B Sporty I have my hands on right now. I love the way they run and the unique design. PLEASE make certain the top end is cleaned out well . I had a bad experience with a new .28 sporty recently from it sitting too long or something and it ruined the piston. Perhaps the engine had some kind of contamination but I urge you to clean it out somehow and lube it well before you proceed.

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Castor, its like Vitamin C for glow engines.OK now that I have mastered the taking off part and the crashing part what next

(in reply to flyby50)
       Post #: 5

RE: End play on new K&B .45 sportster - 5/30/2008 10:16:39 PM   
flyby50


 

Posts: 74
Joined: 7/29/2007
From: warren, OH, USA
Status: offline 		Thanks for the tip!!, i took the head off and cleaned it very good, ......

< Message edited by flyby50 -- 5/30/2008 11:38:44 PM >

(in reply to jeffie8696)
       Post #: 6

RE: End play on new K&B .45 sportster - 5/31/2008 12:25:20 AM   
jeffie8696



Posts: 982
Joined: 5/10/2007
From: coralville, IA, USA
Status: online 		Find any issues in there? Wish I had taken off mine. My other 2 sportys run fantastic.

_____________________________

Castor, its like Vitamin C for glow engines.OK now that I have mastered the taking off part and the crashing part what next

(in reply to flyby50)
       Post #: 7

RE: End play on new K&B .45 sportster - 5/31/2008 3:05:29 AM   
flyby50


 

Posts: 74
Joined: 7/29/2007
From: warren, OH, USA
Status: offline 		I guess i was lucky i did not find anything, but it does have the tightest piston fit i've ever felt, i might heat it up before i crank it over can't wait to hear it run, i have a half gallon of fuel and i added a couple of ounces of castor to it, i hope i did not over due it is that possible... thanks....

(in reply to jeffie8696)
       Post #: 8

RE: End play on new K&B .45 sportster - 5/31/2008 4:37:28 AM   
jeffie8696



Posts: 982
Joined: 5/10/2007
From: coralville, IA, USA
Status: online 		SIG sells up to 25% castor fuels so I think it would be hard to overdo it. Wish I could figure out what really happened to mine. Actually I boxed up the bad parts and sent them to Mecoa for an analysis. I don't expect a warranty and I ordered the parts and paid for them but I am hopeful the will take it into consideration.

_____________________________

Castor, its like Vitamin C for glow engines.OK now that I have mastered the taking off part and the crashing part what next

(in reply to flyby50)
       Post #: 9

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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> End play on new K&B .45 sportster
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