Rayaracing sleeve resizing and tooling
 

I don't post here much anymore, but felt like I owed Ray A some good words since he's been keeping my engines fresh since about 2003 or so. I don't mean he's keeping them fresh for nothing either, I pay for all the stuff he's done and does for me. I just got two sleeves back in the mail yesterday and once again I am very pleased with how they turned out and that they look as good as new again. The one set I sent him the piston would go thru the top of the sleeve. Now it's back to new or better than new tolerances. The other one just needed a freshening up so I can keep my trust in it.

So anyway, thanks Ray! I have used a couple other guys here and there just to see how they compare. I have yet to find one that sends my stuff back looking even close to clean and honed as you get them. Price is right, and Ray's a friendly guy who responds to emails. Keep up the good work!!

Rayaracing.com -- Check him out and trust your engine like it was new again.

+1

I had a sleeve pinched by Ray a couple of months ago. Very fast turn-around, great job. I wouldn't hesitate to send him another one.

Great guy! I bought pinch equipment from him. Great stuff! I've used it for the past 3 years with great success...

I appreciate the kind words
 

Thank You Guys

how much life can you get out of a re pinching as to a new piston and sleeve ? and is the break in process the same thanks

All things being equal (you dont overheat or underheat your engine) you can expect as much as 80% new life from a repinch as to buying new..break in is the same, but not as lengthy..

The quality of the pinch directly effects longevity..

There are other major factors involved before deciding if a repinch is worth it

+2

Ray just resized my 2nd sleeve and I recieved it today. He pinched my hyper .21 a month ago and it was so good I had to send him my RS4 III piston and sleeve.

For $22 bucks and under a week turn around I figure I can kill off this motor and get $22 worth of entertainment out of it.

He's definately recieving all my sleeves from here on out.

http://www.rayaracing.com/
 

Jaz240 summarizes it pretty well.

These miniature two cycle engines have little hardware inside BUT all must be in acceptable condition. Do check for crank pin/conrod bushing wear,and bearing condition. I'll take care of the light liner scratches & pitted piston :nod:

Last Saturday at a local track in my area I chatted with one of the guys in the pits, whom in last year sent me a WS7 P&S set with 4 + gallons fuel on it, fallowing race his air filter fell off. In short, a light hone and polish removed the liner scratches in addition to an average resizing of the cylinder to adjust for the excessive piston wear and set was ready to be reinstalled with a my suggested reasonable re-breakin. I usually suggest heat cycling 4 times or so on the bench and on the ground for at least 6 tanks, at temp & running on the rich side. If I remember correctly from last years conversation with him at one of our local tracks (well over 12 months ago) he did half of the above described suggested re-breakin. :eek: To make a long story short, I was advised last Saturday that engine has ran another 5 gallons since service, without even a conrod change. He changed the conrod one time approximately one gallon before my reconditioning-resizing service, around the 3 gallon mark. The crank shaft to bearing wear is at this time excessive he told me, and a "A" main racer on a budget he is, "gona run her til she busts", so he says. Good luck to Brian M, his racing endeavors, and even more his family life.

The method of my madness :)

Ray I hope to break that P/S in this weekend if all goes well. A buddy should have one or two to send your way. Very happy with your work. Hope to race with you again. You really do a awesome job of taking care of the customer.:nod:

Ray,

at the end of this season I may want to get both of my OS speed pinched. if not at least one, getting near 4 galons on one and wondering how do I send parts to you?

Do I have to send you just the piston and sleeve apart? I dont' want to scrach the piston tring to take that snap ring out.

Do you also supply con rod's and pin for a charge? send it back a built just install type of deal?

http://www.rayaracing.com/orderresize.htm
 

DevelChrist, Ordering service details are on my website http://www.rayaracing.com/orderresize.htm At this time I donot stock engine parts. We may in 20010,at least we have one engine line we are very interested in.

Chris Reilly, THANKS! Quality in the workmanship I do not compromise each set serviced I am glade you noted, and quick turnaround time is as important to the guys so I do my best to accommodate. I should see you at another GLORC race.

RayA

ray,
i just sent you 2 P/S sets,
i know they are in good hands and thanks for providing this service.
RaYRocks!
nitrofx.

You can send the piston with conrod attached and the sleeve in a padded envelope. I usually put it in a sandwich baggy then put it in the envelope.

:tire:

Padded envelope is fine.

Helivaguy, Thanks, I use my service allso.LOL engine problems caused by air filters falling off ,etcetera, happen to me too.everything + anything that normaly don't happen to me has happend my race season this year.hopefuly bad luck has passed and I can improve my driving now.lot of fast racers here in western new york,and close by canadian clubs now. RayA

I to have used rayA and am very happy with his work i have had two done by him and the turnaround time from the west cost to the east cost and back in six days or less is very fast and very good workmanship by him they look just like a new set. Thanks RayA

RayAracing reconditioning-resizing process
 

Thank You Ridgerunner1,
Its really not about the gleam/cosmetics. Starting with good clean surfaces is the first step in resizing accurately. Of course I go that extra step and improve surface finish conditions, removing piston pitting, small liner scratches,nicks left at exhaust port from case removal, etc. Point is there is no possible way & no machine/tool that will find that sweet spot resizing over unclean/unfresh surfaces. The second step is proper tool/proper tool application, reconstructing sleeve alloys'. Resizing tools that Bend & Dent the sleeve obviously to you racers donot work well. The alloy molecules must be evenly & accurately torn from one state and put in another. I personally am very annal with as much as a half a tenth of one thousandth of an inch in my work. I document the before & after dimensioning on invoices for you guys to see what I had done.

helivaguy(giani)

You will be receiving your package in a USPS priority small flat rate box by the end of week here,friday. Both sets came out nice. ;)

http://www.rayaracing.com/

+1 on Ray's work, Dave Crescenzi turned me onto him years ago. But, I may be the only person in the country who gets to race less than jbrow so I haven't needed him recently LOL. Finally getting to run some again so I hope to have some to send you soon Ray!

Ray,

I have one that I'd like to know if it is worth resizing or not. (I can send pics if that helps.)

I picked up a used C6BB, supposedly with 1.5- 2 gallons on it since new. I can tell it has been apart... (screw slots on the backplate show some deformation, etc) so I'm skeptical to say the least.

Looking in the exhaust port I can see some scoring from the wristpin to the top of the piston... and I can turn it over by hand without a flywheel installed. I haven't yet pulled it apart but will do so... gonna take pics of everthing first.

I realize that a resizing will tighten it back up... but should I be concerned about the scratches? Should I simply send it in and let you evaluate if it is useable?

IF it is useable I think I'll change the bearings before I put it back together... and I should check the pin on the crank for consistant diameter right? Are the regular digital calipers that most racers have adequately accurate for that?

Domit,
Not a good sign if you see.liner scratching with thru port. Send in and I will consult by email fallowing inspection. Send the crank to if you would like me to measure crank pin wear. I recomend using blade vineir mics there where tenth accuracy. Calipers only good for ball park measuring. Leave conrod attached to piston when shipping P+S set. Use my order form so I have details with contact + return ship info. RayA

Ray,

Scratches are on the piston, not the liner (although it may have those too... I haven't opened it up yet to see.)

Iam not near my laptop. I am reading + typing on my Blackberry. Sorry I miss read that.deep scratches on the piston will make your P+S set unsalvagable. Light liner scratched no big deal, the always hone out for me.inspect your hardeware and email me there after. RayA

Question.

How much resistance at TDC am I suppose to feel when engine is at running temperature?

My speed is at 4 gals and i feel little resistance.

when cold there quite a bit, can't turn it without some force.

Just wanted to say Thanks Raya! All the sets came back and look great. Thanks again.

Thank You
 

Your welcome! We appreciate the business.:nod:

RayAracing

Just wanted to add my two cents for the great service Ray does. I had a Nova Rossi Plus .21-5, that I had not used very much maybe a gallon or so, that would run erratically. I tore the motor apart and I could push the piston a 1/4" inch or so above the top of the sleeve. The only thing I could figure I was doing was letting the engine cool down with the piston stuck at TDC enlarging the sleeve. Anyway, I priced a new P&S and it was $210.00, almost what I originally paid for the motor. I sent the P&S to Ray, and I received basically a brand new engine. I followed his break-in and ran it all season and it is still running great. Do not hesitate to use him to your advantage and budget!

Thanks, Mike

Update thanks
 

Thanks for the update Mikal ! I especialy like to hear the results at the end of the race season.

It has been a good year here. Busy on to just a few weeks ago.

Happy hollidays to everyone :)

RayAracing

:D ray does a very good job ;)

Speed
 

After reading this thread I will send in my OS World S/P in for a pinch after this Sunday. Question what is the general rule can a P/S get pinched more then once and when should a person get his/her motor pinched.

I've had ray do my collari a few years back. He does excellent work. To me, I'd have it repinched depending on how the motor tunes. If it's starting to show signs of losing compression, then that's when I'd send it in. While you have the motor apart, before you send it in, it might be a good time to check the crank pin and rod. As far as getting the sleeve pinched more than once, talk to ray and see what he says. I'd say you could repinch the motor more than once, but I'm no profesional.

Thanks

Thanks guys
 

Gotspeed2000, As for you not being the professional. I do my best find time fallow these forums / chat at the tracks (get alot of emails and text messages too) listening to you racers comments as to how your resized engines perform. The ease of rebreakin and how/when engine makes power (as compared to it new) has everything to do with the new designed fit I put into these piston + sleeve sets. Its all about the feedback I get from you guys racing. Professionally I am a Tool+Die maker better with alloy reconstruction than as I a racer now. As for the resized tightness most often requested my repeat customer base, is "light-medium". Everyones piston + sleeve set is return shipped with a great fit and improved surface finish condition. :nod:

RayAracing

;)

I sent my first P/S to RayARacing recently (GRP .21 Tuned). Got it back in 1 week. As soon as I looked at it, I could tell it was a great job! Broke it in, which was a breeze, and raced it this past weekend @ JBRL. It ran GREAT! It feels as though it barely has a gallon on it, new.
I have had others pinched in the past(somewhere else), and they seem to go away real quick. I can tell that this one will last a while.
Thanks RayARacing!

Ray, your equipment says alot about how good of a tool and die maker you are. You have stepped up and invented something great that helps out many rc racers to be able to afford racing. I tip my hat to you and appreciate what you have done and are doing for the rc community. I own a rc shop in Georgia and I have brought a ton of traxxas motors back to life using your equipment. They appreciate me for the affordable repairs I do on their engines which in turn means they appreciate you for making it possible. Thanks Dion

Thank you
 

Danny, Good to know I found that "Sweet Spot" your Piston + Sleeve set.Thanks for the heads up on the results.

Dion, Great to hear you are able to put our tooling to good use. It is nice to know my resizing tooling has helped to make rc racing more affordable for many racers of all levels throughout the world. Thank You for the kind words.Good luck + Keep up your own good resizing work.

RayAracing

Question for you Ray. I have an onroad Nova 21+3. It only has about 1.5 gallons on it and was running great when the tune went off and will not tune back in right. Upon inspection I noticed that the piston on the exhaust port side is black from top to bottom. Sounds like a lot of blow by to me. The piston isn't scratched, just black. Do you think a pinch might fix this? The motor is so new with a great crank that I would hate to scrap it already.

ship it
 

Wingracer,
Yes, should be a good candidate. Shipping details on my website.Review notes on in invoice with your return shipped package.Call text or email me with further questions. RayAracing

simple note to RC tooling customers
 

As for you guys calling, texting, and emailing me about tooling purchases the last few months, Next week place your order. See website. RayAracing

website temporary down today
 

It has just been brought to my attention RayAracing website has been down since sometime yesturday. Our website Order forms is not accessible, and emails generated at [email protected] will not be either untill things streightend out with hosting, hopefully today. Untill then I can still be reached by phone call or text (716) 783-5198

RayAracing

http://www.rayaracing.com/
 

Website back in action guys. Now I can get back to insulating and heating project here. All week next week I will be in shop here reconditioning-resizing P+S sets,and. testing+packaging tooling orders.

http://www.rayaracing.com/