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-   -   Where Can You Buy A Piston & Sleeve Resizing Tool (https://www.rctech.net/forum/offroad-nitro-engine-forum/898596-where-can-you-buy-piston-sleeve-resizing-tool.html)

offroad dude 11-04-2015 06:38 PM

Where Can You Buy A Piston & Sleeve Resizing Tool
 
I want to try and play with some old pistons and sleeves, so can some one please point me in the right direction to buy one. I don't have a clue where to get one from...:confused:

22Racer 11-04-2015 07:26 PM


Originally Posted by offroad dude (Post 14252187)
I want to try and play with some old pistons and sleeves, so can some one please point me in the right direction to buy one. I don't have a clue where to get one from...:confused:

The only one I know that makes tools right now is RAY A. aka Rayaracing. I think they are over $500.00 but not sure. You can have alot of sleeves pinched for that much. I use a totally different method but I do not sell them. I would not recommend the cheap clamps I have seen, they do not squeeze evenly and do not keep the sleeve round.

Rex

Roelof 11-05-2015 12:05 AM

The most simple ones you can find on Ebay

UrabusDenis 11-05-2015 06:15 AM

I do not reccomend doing this- I am sure you need good tools to do the job right. You will be much better sending it to Rex, he knows what he is doing and I am very happy with his service, every time I send a piston/sleeve set the engine works as new when it comes back home , ready for racing. You will get a lot more for your money than buying those clamps

offroad dude 11-05-2015 07:39 AM

I'm sure he had to start somewhere.

Roelof 11-05-2015 09:38 AM


Originally Posted by UrabusDenis (Post 14252652)
I do not reccomend doing this- I am sure you need good tools to do the job right. You will be much better sending it to Rex, he knows what he is doing and I am very happy with his service, every time I send a piston/sleeve set the engine works as new when it comes back home , ready for racing. You will get a lot more for your money than buying those clamps

This is why most drivers today have no knowledge. "Please don't do it by yourself!" :flaming:

If he has engines which are ready for a trash can, who not give it a try?


For many thing I also do some investigation before I start with an own idea. I started with a machine clamp

http://www.euronet.nl/users/tooms/pinch/spantang.jpg

With a small conical shaped ring I give my sleeves a pinch. With a smal scale on the nut I can go to the excac point to which I have done if it is not enough and ad a small step to it to see if it is OK.

http://www.euronet.nl/users/tooms/pinch/spantang1.jpg

And if needed I use a hone tool to finish the sleeve:

http://www.euronet.nl/users/tooms/pinch/honen.jpg

kyosho28 11-06-2015 01:45 AM

If you have access to a lathe or know some one, Get one of this made.They work great. https://www.youtube.com/watch?v=dr7U...?v=k7CDG4ddpuM

Chris Reilly 11-06-2015 05:45 PM

Ray A is the one I trust with my engines. Rex maybe good but I have not had one done by him. I would be careful who I trust with my engine.

My ST-RR EVO 11-07-2015 01:17 AM

[QUOTE=Roelof;14252903]This is why most drivers today have no knowledge. "Please don't do it by yourself!" :flaming:

If he has engines which are ready for a trash can, who not give it a try? [QUOTE]

Yup.

offroad dude 11-07-2015 06:25 PM

Thanks guys for all the help.

smelly62 11-07-2015 07:57 PM


Originally Posted by offroad dude (Post 14255925)
Thanks guys for all the help.

In the early days I destroyed heaps of liners doing various things, go for it, it's fun.
I look back now and laugh, but now I am a respected engine rebuilder here in Aus.

portyansky 11-08-2015 05:33 AM

Contact Ray, I know he used to sell them.

jersey 10-09-2020 01:24 PM

What are you guys using/making your rings to go around sleeve? Copper aluminum pipe cutting it? Trying to see what works best.

Roelof 10-09-2020 01:41 PM

It needs to be something hard.
Because I use an ER32 clamp with the largest size 20mm and sleeves of 15.5mm I used a piece of a metal strap band for heavy boxes. On my mill with the vice under a slight angle I could mill a taper on it and bend it arround a sleeve.

For smaller diameter sleeves I made adapters on my lathe from a bar of steel so I can do 17, 17.5, 18, 19.2 and 19.5mm sleeves.

I also found an oversize ER32 clamp of 22mm so I made a small adapter ring to fit 21 and 21.5mm sleeves from .28-.32 engines.

Jcharger13 10-09-2020 02:01 PM

As a machinist I always thought a collet chuck would be they way to do this. Nice to see that’s how you are repinching sleeves Roelof


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