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Sure Start cylinder removal
Page 1 of 1
Sure Start cylinder removal
TheotherGeoff Thu Apr 04, 2013 1:31 pm
I notice that Sure Starts (At least the ones I have) have no flats on the cylinder for a wrench. With the skinny slits for the exhaust, that means there's no way to unscrew it. Not that I need to unscrew it, but I might someday. Does one just take a Dremel tool to the top fins and make his own flats, or....
TheotherGeoff- Moderate Poster
- Posts : 29
Join date : 2013-01-23
Location : Third level of hell
Re: Sure Start cylinder removal
SuperDave Thu Apr 04, 2013 1:59 pm
Geoff:
Had the same problem with a Sure-Start and as I cleaned it I gave it a good 2-3 day soaking in Hoppe's #9 Gun Solvent. I then placed two strips of soft wood in a vice, and applied mild heat to the cylinder, placed it in between the pine wood strips the GENTLY clamped down on the vice until the cylinder fins embedded themselves in the wood pieces.
I then used a padded Cresent wremch on the crankcase to unscrew the cylinder. The trick is to work SLOWLY and using as little FORCE as is needed.
Using a Dremel or the cylinder slots wasn't neccessary or isn't recommended.
SuperDave
Had the same problem with a Sure-Start and as I cleaned it I gave it a good 2-3 day soaking in Hoppe's #9 Gun Solvent. I then placed two strips of soft wood in a vice, and applied mild heat to the cylinder, placed it in between the pine wood strips the GENTLY clamped down on the vice until the cylinder fins embedded themselves in the wood pieces.
I then used a padded Cresent wremch on the crankcase to unscrew the cylinder. The trick is to work SLOWLY and using as little FORCE as is needed.
Using a Dremel or the cylinder slots wasn't neccessary or isn't recommended.
SuperDave
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Join date : 2011-08-13
Location : Washington (state)
Re: Sure Start cylinder removal
crankbndr Thu Apr 04, 2013 2:12 pm
This heat sink is the best way I've found. Remove the head, tape the upper cylinder so no metal to metal, slip on sink and tighten nut.
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Join date : 2011-12-10
Location : Homestead FL
Re: Sure Start cylinder removal
SuperDave Thu Apr 04, 2013 2:16 pm
Hey Crank:
Did you buy the new engine for your Cox Champion car?
SD
Did you buy the new engine for your Cox Champion car?
SD
SuperDave- Rest In Peace
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Join date : 2011-08-13
Location : Washington (state)
Re: Sure Start cylinder removal
crankbndr Thu Apr 04, 2013 2:39 pm
Yes I did Dave, be here Fri. AM. Nrob is nice guy to deal with, will post pics soon.
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- Posts : 3109
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Re: Sure Start cylinder removal
SuperDave Fri Apr 05, 2013 12:16 pm
Crank's idea about removing a cylinder with a heat-sink has merit too IF you happen to have a heat-sink. (I don't) 
SD
SD
SuperDave- Rest In Peace
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Location : Washington (state)
Re: Sure Start cylinder removal
pkrankow Fri Apr 05, 2013 12:57 pm
I have had good luck using an old leather belt. Instead of grabbing the cylinder with the pliers padded by the belt, grab the belt and as the pliers flop over the belt tightens some on the cylinder exactly like a band wrench.
Phil
Phil
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Location : Ohio
Re: Sure Start cylinder removal
SuperDave Fri Apr 05, 2013 1:28 pm
Phil:
I've also used two scrap pieces of discarded conveyer belt rubber to pad the fins. ANYTHING to protect the cylinder cooling fins! SCHEEEZ!
Using pilers to remove a cylinder is............well so primative and amatuerish.
SD
I've also used two scrap pieces of discarded conveyer belt rubber to pad the fins. ANYTHING to protect the cylinder cooling fins! SCHEEEZ!
Using pilers to remove a cylinder is............well so primative and amatuerish.
SD
SuperDave- Rest In Peace
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Join date : 2011-08-13
Location : Washington (state)
Re: Sure Start cylinder removal
pkrankow Fri Apr 05, 2013 3:36 pm
With heat applied to the crankcase but not the cylinder the parts should come apart easily. Use a hair dryer or a heat gun. Aluminum expands more than steel for a given temperature change so even if you heat both there should be loosening.
Yea, pliers are amateurish. A belt wrench formed from pliers and a belt is slightly less amateurish.
Phil
Yea, pliers are amateurish. A belt wrench formed from pliers and a belt is slightly less amateurish.
Phil
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» Flats on top cylinder fin for COX wrench - DIY
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