On road rc engine break in

[@billymanilli]

That's a beautiful track! Nothing like that around me... :(

[@letzvisit1661]

I have an old buggy I recently got which I was told was stored for 10 plus years but I don’t believe it was ever finished running in. What would be the best method for breaking it in to be on safe side?

[@sonicstep]

That track appears to be on an inline, which must make it quite challenging on the decents entering corners.

[@OnroadRC_and_OffroadRC_Finland]

Thank you for your comments. I have been thinking to remove this video because I don't really know whether there is any point in this. At the time I was just so happy to have my first good engine. Sorry I actually don't know what the inline means here :(. Last summer I did a bit better but still need training with tuning an engine. I think I broke one engine at the very last track day of this years summer :(. When it comes to summer 2023 I have kind of mixed feelings. On the other hand I feel frustrated because of not being as good with the engines than what I hoped after summer 2022 because I tried to learn quite a lot. With this summer (2022) I had my best moments with O.S. engine. Then I changed the conrod on that and during that process I decided to run a Max engine because I bought one of those (a used one). Don't know whether anybody is interested in this text but will continue anyway :). Well, I have two Max engines. One is a used one with all new inner parts and another one was said to be driven 8l with a new conrod that was already done with the break-in. I selected the used one because wanted just to drive. I had some strange issues with suddenly lean and I thought am I crazy. Then I noticed the HSN went lean by itself (!!) when driving on the track. I have a witness on this so it is not just me. The needle changed it position by itself. So maybe new gaskets for the needle will cure it. But when I had the another max engine I just switched the carbs. But I kept having odd troubles, something what I did not run into with the O.S. engine. I am not saying O.S. is better than Max or anything but still there seemed to be something too hard to figure out by myself. When trying to lean the LSN I came to a point where the engine did not hesitate in anyway when letting the engine idle for a while and going full throttle after that. But, when leaning a bit more the LSN the engine started to hesitate for a short while before the revs got to the max. And when I tried to richen the LSN to get the hesitation away I had to richen it much much more than what my last leaning of the LSN was before the hesitation came. Doesn't it sound there is a problem? Glow plug was ok, that was checked and tried new one, more than one. So next summer I am trying the O.S. again and see that can I do the tuning ok with that and see that does it behave the situations like I think it should behave.

[@stevedorsey4234]

We are looking to build a similar track layout. If you don't mind sharing, what are the track dimensions and specifications? Thank you.

[@OnroadRC_and_OffroadRC_Finland]

Hello. Sorry for the delay in replying. I am so sorry, I am just a guy with this hobby and I don't know anything specific about this track of our club :(. One thing that came to my mind now is that this track is quite harsh for the engines. Very flowing yes but even in many of the cornes engine is quite loaded because there is many tilted corners with lots of grip. Just a thought.

[@tomward7479]

Nice track where is it

[@OnroadRC_and_OffroadRC_Finland]

Hello there! Yes this feels nice. A quite new layout. Wasn't there when the older layout was on but everybody has said this is much better. This is located in Helsinki, Finland. Aipworks Circuit its name is, visible in Google maps. If name Teemu Leino rings a bell this is kind of his hometrack.

[@tomward7479]

@@OnroadRC_and_OffroadRC_Finland cool, bit far from ireland where i am though lol

[@OnroadRC_and_OffroadRC_Finland]

@@tomward7479 :)

[@michaelliu7404]

Better send your mechanics to check the temperature every few laps and reduce the number of "wet" laps.

[@OnroadRC_and_OffroadRC_Finland]

Sorry have to ask: with the wet laps you mean the laps when engine is running way too rich and perhaps even loosing temperature totally? Yes, I figured it out afterwards that should have gotten more rapidly closer to the right settings so that at least the temps would have been almost there. Now they weren't.

[@michaelliu7404]

@@OnroadRC_and_OffroadRC_Finland Suppose that there is a narrow range of optimal temperature that the mechanical condition of the engine is the best, we should run the engine at that temperature as soon as possible because at the other temperatures the tear and wear and also the tightness of the cylinder and piston are not the same. For example if the engine temperature drops after two rich laps, we can reduce the fuel and the engine temperature should go up again. We can repeat this process two or three times until there is just a small trace of smoke at top rpm while the temperature is not exceeding the plug temperature. Then you finished your break in. Just my sense. Enjoy.

[@allaspectsrc4178]

what engine u running

[@OnroadRC_and_OffroadRC_Finland]

This was my very first engine , over a year ago. It was a NOVA ROSSI ENGINE FLASH .21R-PTA, bought it here www.future-rc.fi/product_details.php?p=67900 I managed to drive it too lean. Still hoping to get it running, it was a nice engine. But I think I made some beginner's mistakes with it :( Now I have one O.S. R21 eurospec and one Max RP9.S. I don't yet know to which brand I am going to focus in the future. I think it would make sense to use only one brand only.

[@grandpaluke9160]

Pista molto bella ,la guida è buona, ma migliorabile, il motore, che comunque rimane acceso, non è carburato bene. Bel video,saluti dall'Italia!

[@OnroadRC_and_OffroadRC_Finland]

Yes thank you for your message. Yes, the engine was very new and so it was the break in process was going on and that is why it was so rich. Now I have a different car (Shepherd) but the same engine still in use :).