Resizing
 

Ray im about to send a old sirio kania #1 P/S/R for resizing and conditioning and i see you have a service for conditioning for the head button what does this mean you do clean. I only ask because my piston and head button every other race if i can so i know its clean what esle is done. Trying to see if the extra 5 worth it. Cant wait to try your servive first time always going to locals. Thanks Speedy hope your doing well. PS would you know the bearing size for front and rear?

service caLL
 

Speedyrob,
Bearing? Go streight to Boca http://www.bocabearings.com/main1.as...e&pg=2&mfr=131 or one of the other distributors. Any further dificulties here feel free to email me direct. Changing bearings is a very simple cheap and a nessisary evil

Headbutton reconditioning service includes pitting removal / improving surface finish condition.

Hope this set is vergin , never resized before. If not I will know after set is cleaned and inspected.

Good to have you onboard now using our services.

No never been resized before boca well say what bearing for what motor i need a size. I do have digital calipers but i thought i need the bearing out the motor. I look at the head button to see if it needs it or not. I just dont want to buy the wrong size bearing and no info on the motor anymore because the age. Dont even know what the size of the crank pin is but everything looks good. Motor had about 13 galons before it let go. Thanks

rebuild procedure ?
 

With 13 gallons thru engine best check everything. In addition to replacing bearings do cheack crank pin (you do not more than 0.003" high + low measurement) and replacing conrod is a givin. Calipers OK for basic measurements , but measuring for crank pin wear you may want to use micrometers, I use blade mics. As for the bearings , just back @350F 10 minutes and both will pop right out for you to measure with your calipers. The crank pin you are more than welcome to ship it with your P+S set and I will measure for you , if you so wish. Remember, these little ringless engine are with very close tolleranced machined parts, that perform best while all parts are in that close tollerance range. Hope this helped you friend. Good luck:tire:
RayAracing

Thanks
 

I can not find specs on the engine an i dont think i can find a new rod for it because the age of the motor unless another kind well work. I have always preheated the motor. I well send the crank in with P/S iv already polished everything but it want hurt to have it done again:sneaky:. Thanks i ship everything out soon. Thanks for your great sevice Speedy

Many phone calls today
 

Speedyrob, We'll talk to you once package arrives here.

Chris, Stan, and Jerry, Your tooling orders will be confirmed apon payment staus. With that said theres room for one more tooling order this round.

Thanks guys!

I'll be in the garage all day tomorrow resizing. Online and close to blackberry available any questions. Contact info below. :nod:

RayAracing

How should i mark my P/S and crank so you know its my it says to do this on your web page. Thanks

order form
 

At order form page bottom theres a send button that forwards invoice to me that I can file and match with your package apon arrival. Or you canb print the invoice yourself and inclose with hardeware to be serviced.

RayAracing

YA!!!! Stop yackin on the phone !!!! ;)


youre the man Ray !!! this guy is the best in the resizing business , period!!! :D

Dirt is my business
 

Thanks Monty.
Was nice talking with you the other day, sharing our Insight different areas of expertise.

Yes, Yesturday all work no play ( NO YAKIN ON THE PHONE< LOL) completed orders on the table. A couple older engine models...Couple new. What 6 of the 9 sets had in common was premature piston wear caused by dirt/mud contamination....Likely more like 7. Doesn't take much guys...Dirty/wet air filter, thru a poor sealing front bearing, or in with a hurry up glow plug change durring a race.Unfortuanitly each and every rc nitro racer out there has already, or eventually will have a incident causing engine life loss. Although , I personally have provided a safety net these racers with my process improving surface finish conditions with improved sealing capabilities. My vision 8 + years ago, and is still is to tool the race clubs/track across the globe providing them the option to successfully resize (often brand new damaged engines) themselves, in a more time efficient manor. Point is, Although I am flattered to be considered by any one person the best in the resizing business, there will be someone with great innovated new creative resizing ideas that could possibly very well materialize some day. As for now, my resizing method (mild controlled aloy reconstruction)using internal and external control is what works best for me and other guys tooled by RayAracing. Good luck to those attempting their own individuality trying to shoehorn an accuracy demanding process. I mean that , I'm not here to dog anyone personaly.

Tomorrow in the garage working on my own stuff, in with close observation a new engine breakin.

Resizing tooling & service questions welcome by phone the remainder this week.

RayAracing

Ray, I have one or two mills I'd like to send in, one of them being a VSpec, but wanted to get your thoughts on resizing and how long it usually lasts (assuming I am not abusing my motor) before needing to touched up again and how many times can you resize a sleeve before it's shot?

After reading through this post I know where I will be sending my motors for a facelift. Thanks Ray for the information!

CM

Hi CM,

In consideration the VSpec engine model resized longevity , we're seeing anywhere from 3 gallons "medium tightness" reconditioned-resized results. Italian based engine models a tad more. Please note a "medium" tight resizing is with nowhere near the metal pinch as new, and should rebreakin much much faster. As for the number of resizings per engines life span, I prefer to use dimensional reconstruction factor as apposed to number of times, which is approx 0.0008" max total before geometrical fit becomes loose effecting engines performance becoming Flat. To elaborate here, the normal unabused piston + sleeve set is resized approx 0.0003" per one service here with me.With that said , your unabused piston + sleeve set can be reconditioned-resized (2) times, while another that sucked dirt will get "one". I hope you find these answers a little more specific to that of commonly have been generalized.

Hope you find my services addvantagous to your future racing needs. Thanks!

RayAracing

Ray I am pretty sure you are running the P5's in your buggies correct? Or maybe it was the + I forget. If you are, or if anyone else out there is, are you using the R7 Limited Edition Extra Strength Rod (NVR07009)? How are they holding up? I already purchased one, but I guess I would ask anyway...

R7 conrod
 

TraxxasJunky,
I ran a P5 a few years back. I just pulled a R7 conrod OEM from a Nova 21 plus 4 engine 3-4 gallons from new that looked as could have gone another gallon. Quality item. Concidering engine is allready briken in the replacement R7 should go twice the distance.

Speedrob,
Your Sirio Kani parts arrived and is serviced. Crankpin wearis with 0.0015" low and high measurement. Reasonably good shape yet. Conrod of course should be replaced. A nova conrod R7 I have on the table showed to be with identical wristpin size+ crank pin bushing size very close hard to read but within a half (give or take a few tenths)thousandth at worst, and length from centerline is concentric. Hope this helps.Will return ship tomorrow.

RayAracing

Had a good week...Thanks Guys!
 

Tooling orders pretty much completes next week in the shop...Thanks guys! Building (1) extra 20-21 die set for inventory.


Finished the week off today with "one" last P+S set serviced for Mark (Return ship Monday) and remainder day in shop workin on my own stuff. Working on these piston + sleeve sets has been great hand physical theropy....Realy...movement with my fingers has improved tremendously these last 10 days or so. All kidding aside. :nod:

Feel free to call after 3pm EST next week with any questions.

RayAracing