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**Noor** · 11-24-2011, 03:11 PM

Thread approved

**Rxboy** · 11-24-2011, 03:34 PM

Originally posted by The Great View Post

I went through the whole forum and couldn't get much proper info of how is the re-sleeving of the cylinder done. I tried searching on the internet too and got the basic knowledge that a new sleeve is fitted into the cylinder using the specialized lathe machine.

But in this specific (cylinder) thread i would love if someone who has done sleeving of the engine and throw some light on why it is or isn't recommended.

I have had mixed reactions from people saying that the re sleeved standard cylinder is not at par with the stock std cylinder, performance wise. But i am yet to understand why?

2 Stroke Guru's kindly share the info.

Thanks in advance, Cheers !!

i am also like you and i m not like our xbhp gurus,but i m telling what i had heared.re sleeving is done by putting a sheet of metal according to match the piston size,which you have to give to the lathe operator,so that there should be no even a mm gap between cylinder wall and piston.and that's true the resleeving by local operators cannot match the performance unlike the factory ones,but the difference can be minimum if lathe is handled by an expert and by using right tools.that's why many of us go for fresh cylinder kit.

**yamdoot** · 11-24-2011, 04:00 PM

Originally posted by The Great View Post

I went through the whole forum and couldn't get much proper info of how is the re-sleeving of the cylinder done. I tried searching on the internet too and got the basic knowledge that a new sleeve is fitted into the cylinder using the specialized lathe machine.

But in this specific (cylinder) thread i would love if someone who has done sleeving of the engine and throw some light on why it is or isn't recommended.

I have had mixed reactions from people saying that the re sleeved standard cylinder is not at par with the stock std cylinder, performance wise. But i am yet to understand why?

2 Stroke Guru's kindly share the info.

Thanks in advance, Cheers !!

Sleeving is a specialised job requiring special machinary as you know. It has to be done in a precise manner to bring the cylinder liner back to company specs. However, we dont have such places who can bring out a quality job . [heck they cant even bore a cylinder properly!]

The new sleeve has to be pressed perfectly straight, the ports should be correctly matched and the sleeve quality should match the original liner. Im sure getting all of these done together is a tough job for an average Lathe guy.
I know just a handful of guys who can perform a good job in India but quality comes at a price.

**The Great** · 11-24-2011, 04:05 PM

Thank you for approving this thread sir.

So basically if the sleeve is properly fitted then the engine would revert back to Standard? having again re-boring possibilities on the sleeve?

@ Yamdoot, sir since u are a veteran, Have u ever tested a good sleeved bike. What is the real difference in the performance. Is it marginal or substantial.

I believe this subject needs a lot more details since finding a new Cylinder is becoming tougher.

**yamdoot** · 11-24-2011, 04:10 PM

Originally posted by The Great View Post

Thank you for approving this thread sir.

So basically if the sleeve is properly fitted then the engine would revert back to Standard? having again re-boring possibilities on the sleeve?

@ Yamdoot, sir since u are a veteran, Have u ever tested a good sleeved bike. What is the real difference in the performance. Is it marginal or substantial.

I believe this subject needs a lot more details since finding a new Cylinder is becoming tougher.

Yes the difference is substantial. The bike only runs but doesnt run like it should. It overheats too. Have ridden RDs on sleeves and they ran real bad. Have ridden a few on a good sleeve job and they ran like new.

**The Great** · 11-24-2011, 04:35 PM

Originally posted by yamdoot View Post

Yes the difference is substantial. The bike only runs but doesnt run like it should. It overheats too. Have ridden RDs on sleeves and they ran real bad. Have ridden a few on a good sleeve job and they ran like new.

So a good sleeve job is still a good choice given that its properly done?

How much does a good proper sleeve job cost here. An approx figure would confirm that its better to hunt for a new Cylinder kit or not.

**yamdoot** · 11-24-2011, 04:39 PM

Originally posted by The Great View Post

So a good sleeve job is still a good choice given that its properly done?

How much does a good proper sleeve job cost here. An approx figure would confirm that its better to hunt for a new Cylinder kit or not.

A sleeve job is the only choice if a new cylinder kit is not available or is insanely expensive!

Id say the cost depends but expect it to be about half the cost of a new cylinder.

P.S- If 'here' means Mumbai, then forget about it. They dont even have CNC machines to bore them.

**The Great** · 11-25-2011, 01:56 PM

Originally posted by yamdoot View Post

A sleeve job is the only choice if a new cylinder kit is not available or is insanely expensive!

Id say the cost depends but expect it to be about half the cost of a new cylinder.

P.S- If 'here' means Mumbai, then forget about it. They dont even have CNC machines to bore them.

Well if not the only choice i was trying to explore the good or bad side of sleeving.

Since you said its half the cost of a new cylinder, which now a days are indeed insanely priced. I don't want to start a price discussion here about the cylinders. Which is in case of all the parts now as people are starting to stock them and then quoting heavy prices. Anyways that's not the point here.

Still if anyone has done a re-sleeving job kindly share the knowledge here. That would be a great learning curve.

**BigBore** · 11-25-2011, 02:49 PM

@ Vinay - Try and get hands on a used 1st OS or 2nd OS 4TL10 bore rather than re-sleeving the existing bore..

**2strokey** · 11-25-2011, 05:12 PM

Sleeves good option in a Dying situation.

Sleeving is the only option left if your Machine is dying & you cant find the New bore.

Sleeving if done properly. Boosts your Machines Fuel efficiency, your ride gets smoother like the Std bore, thers no vibrations from the Bore & overall its a nice feeling. This is the Upper side of Sleeved bore.

The Lower side even if the Sleeve is done very nicely, you cant expect your bike to perform like the Original, The Bike Heats very fast specially in the RX's family bores thers unusual knocking sound emitted if you try to rev it past 85 kmph (RX-100 Sleeved Bore) & it feels as if the Bike is choking & gasping for Air.

There are 2 turners in Mumbai who can get a good Job of Sleeving. 1 is in Gaiwadi & the other in Dadar. It can cost you around 1000 Rupees per Bore.

I personally have tried almost all the 2 strokers that I own to run on the Sleeved Bores & I am not satisfied with the Result.

**driftjockey** · 11-27-2011, 02:01 AM

Originally posted by Ri$hi

What exactly do You mean by OS 4TL10

1st or 2nd oversize, bore of a 135 5speed

**nirvaana** · 11-27-2011, 02:06 PM

Reboring is increasing the size of bore (dia of the cylinder). All cylinders have a sleeve (covering) made of a certain material. This is to ensure longevity of the bore.
Once the wall of the sleeve is worn out a rebore is required. This can be done to a certain limit as sleeves are of usually 0.5~2mm thickness. If this has worn out almost completely then a new sleeve is required (resleeving).

**The Great** · 02-10-2012, 04:12 PM

Originally posted by 2strokey View Post

Sleeving is the only option left if your Machine is dying & you cant find the New bore.

Sleeving if done properly. Boosts your Machines Fuel efficiency, your ride gets smoother like the Std bore, thers no vibrations from the Bore & overall its a nice feeling. This is the Upper side of Sleeved bore.

The Lower side even if the Sleeve is done very nicely, you cant expect your bike to perform like the Original, The Bike Heats very fast specially in the RX's family bores thers unusual knocking sound emitted if you try to rev it past 85 kmph (RX-100 Sleeved Bore) & it feels as if the Bike is choking & gasping for Air.

There are 2 turners in Mumbai who can get a good Job of Sleeving. 1 is in Gaiwadi & the other in Dadar. It can cost you around 1000 Rupees per Bore.

I personally have tried almost all the 2 strokers that I own to run on the Sleeved Bores & I am not satisfied with the Result.

Successfully sleeved the bore. The sleeving has been done with immaculate precision and slightly polished the ports too. Didn't overdo it. The bike is in rebuild stage and i will keep this post updated with the results once I start riding the bike. If success is achieved in the process I believe it would be a great feat.

**parry122** · 03-30-2012, 12:29 PM

Oversize bore or new cylinder kit?

Originally posted by The Great View Post

Successfully sleeved the bore. The sleeving has been done with immaculate precision and slightly polished the ports too. Didn't overdo it. The bike is in rebuild stage and i will keep this post updated with the results once I start riding the bike. If success is achieved in the process I believe it would be a great feat.

Hey great, could you post your post sleeving experiences on the machine, I myself have recently put my RE Machismo 1996 on a garage for engine job.

I intended for a cost efficient job, as i am contemplating to buy a TBTS 500 when lauched, hence did not go for new cylinder kit.

I am getting it re-bored to 20 oversize. (this is my first engine job, and bore size is std)

I believe, this will not upset me......

Gurus, pl throw lights....... pl advice, i still have time to shift to new cylinder kit.

thks
Parry

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