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How to resleeve an engine?

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How to resleeve an engine?

Postby AHood » March 12th, 2006, 2:23 pm

[quote=johnd651]i have no clue what type of cylinder it is anymore...everyone i talk to says someting different...

i had a snowmobile guy look and say resleave...cant bore
and a machine shop guy say bore dont spend money on sleave

i dont know...and where could i pick up a sleave if i needed to[/quote]

its not a chrome bore is it?
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How to resleeve an engine?

Postby 396F/A » March 12th, 2006, 5:17 pm

Howdy. A Rotax "type 343" has a pressed in sleeve.
I assume the engine is question has ruined the PTO side bore ?? correct ?? That is the one the gets it 99% of the time. Like other fellows are saying, don`t pay BIG coin for a re-sleeve job. Find a used engine or just a jug for much less than the 400 bucks.
But if you find a engine that has problems, then as above 99% chance that the PTO jug is bad. As you know, there is a difference from a left to right jug, they are twisted on the crank case to use a common intake & make the engine shorter, thus the right & left jugs are not interchangable. BUT, the sleeves are identical from left to right, just rotated in jug.
The Rotax "type 343" is very likely the most common sled engine used from `73 to `79. You should have no problem to find a engine for parts or very easy to find a mag side jug with a good sleeve, then just switch sleeves, & you CAN DOO this at home :C You should find a jug with good sleeve for 20 bucks, if they want more, leave it there & looks else where ;)
Best of luck.
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How to resleeve an engine?

Postby johnd651 » March 13th, 2006, 7:00 am

ok its on the side with the pull start and fan and all that..i dont know the exact names

but how would i resleave mine...just like bang out the old sleave with a hammer and pop a new one in...or heat it up or what
yay...it works...just body work left now
[url=http://www.putfile.com/johnd651]Pics of the Sled[/url]
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How to resleeve an engine?

Postby Wheeler550 » March 13th, 2006, 7:45 am

I'd recomend buying another jug. I know what AHood is saying and it's the little things that will come back to haunt you, better to unbolt and rebolt.

On a best guess, that engine has not been bored over yet. That might be the next route, but if you do one, you should do both and match the pistons.

Also if it's on the side with the "pull start", that is the Mag side. The side with the clutch is the PTO side. Just to be clear. I still can't find the Sled Wreckers in NY but I'll keep looking.
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How to resleeve an engine?

Postby johnd651 » March 13th, 2006, 1:11 pm

ok...i was told by a couple people that it cant be bored

and by the way...im still looking for sled wreckers in ny to...its harder then i thought
yay...it works...just body work left now
[url=http://www.putfile.com/johnd651]Pics of the Sled[/url]
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How to resleeve an engine?

Postby ZR800XC » March 13th, 2006, 2:31 pm

If you can find an oversized piston, and I don't know why you wouldn't be able to due to the popularity of the engine, you should be able to bore it. Try checking with guys that have Wiseco piston inventories. Find an oversize that will get rid of your scoring. Should be able to get a Wiseco for that thing for $20. Take it in, get it bored. 'Round here boring's only $15 a hole at most places...


[img]http://my.core.com/~twister76/twister1.jpg">[/img]

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How to resleeve an engine?

Postby ashley* » March 13th, 2006, 3:15 pm

[quote=outagas][quote=AHood] theres no way you or anyother back yard types could every properly resleave a cylinder yourself.[/quote]
just curious, are YOU a back yard type?[/quote]

y'all remember ahood's shop?
[img]http://i42.photobucket.com/albums/e309/textphotobucket/ka5ocy.jpg[/img]

i ask you,does this look like the shop of a backyard wrencher?....
oh shlt,.....well,ya,guess it does. oh well,at least there's no "girlie pictures" on the wall.
skunk is my luv biscuit
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How to resleeve an engine?

Postby Mr-Who? » March 13th, 2006, 3:28 pm

LMAO:B
Lead,Follow or Get Out of the Way!!
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How to resleeve an engine?

Postby AHood » March 13th, 2006, 4:17 pm

haha thats just my basement full of parts. shop is elsewhere.
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How to resleeve an engine?

Postby outagas » March 13th, 2006, 9:43 pm

[quote=AHood]haha thats just my basement full of parts. shop is elsewhere.[/quote]
interesting.
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