Some engines I've had took a gallon or so to become a stable engine. By stable, I mean good power, consistent temps, holds a tune... generally running well.
I have an axial 28 1S that I bought over a year ago. I ran about 3/4 - 1 gallon or so through it of trinity MHP 20%, then sold the truck it was in. Then a few months ago, I figured I'd throw it in my aftershock and it ran like crap. I pickled it with ARO prior to storing it. I completely tore it down and resealed it with RTV, replaced the front bearing, put it back into the aftershock and it still ran like crap. I ran a couple 150cc tanks through it and just couldn't get it right.
So, I talk to the LHS guy and he says bring it in and he would send it to axial to figure it out. That was 3 or 4 weeks ago, I got it back a week ago, axial said the front bearing was leaking a very little bit but otherwise the engine was in immaculate condition. The replaced the bearing and I'm guessing they ran it in something. The carb was twisted around opposite the way I sent it and it was tightened down.
I installed the engine back in the aftershock last night and go out to run it today. The only difference from now and last time is that now I'm running 25% nitro. It seemed to run much better, but likes to run overly rich. It's so rich that if I let it sit for more than 10 seconds, it loads up so bad that it takes 25-30 yards of WOT before it clears it's throat enough to shift into second. It seems to have much better power than it did before I sent it in, but it's still not even close to the power output of my LRP28. It's running around 210F.
If I lean either the HSN or LSN even so much as 1/16 of a turn, it gets that weird hollow sound and revs up an insane amount, then almost stalls when I try to give it gas. If I go over 1/2 throttle, the engine just cuts out. If I let up quickly, it comes back then idles way too high. I richen the HSN 1/16 turn and then I can run WOT. Leaning the LSN has similar results, but then idles very badly and the idle adjustment has almost no impact.
I have to be over a gallon now. I ran 3 150cc tanks through it today, then busted my exhaust wire and had to end the bash session.
Any thoughts on the tune or general issues that can be tuned out of this thing?
Seems like an awful lot of trouble for a $100 engine... but I would like to have it run as good as it can. I've read so many people having good luck with this engine and I can't figure out why I can't. This isn't my first engine... if it was, I may have given up!
Thanks.
I have an axial 28 1S that I bought over a year ago. I ran about 3/4 - 1 gallon or so through it of trinity MHP 20%, then sold the truck it was in. Then a few months ago, I figured I'd throw it in my aftershock and it ran like crap. I pickled it with ARO prior to storing it. I completely tore it down and resealed it with RTV, replaced the front bearing, put it back into the aftershock and it still ran like crap. I ran a couple 150cc tanks through it and just couldn't get it right.
So, I talk to the LHS guy and he says bring it in and he would send it to axial to figure it out. That was 3 or 4 weeks ago, I got it back a week ago, axial said the front bearing was leaking a very little bit but otherwise the engine was in immaculate condition. The replaced the bearing and I'm guessing they ran it in something. The carb was twisted around opposite the way I sent it and it was tightened down.
I installed the engine back in the aftershock last night and go out to run it today. The only difference from now and last time is that now I'm running 25% nitro. It seemed to run much better, but likes to run overly rich. It's so rich that if I let it sit for more than 10 seconds, it loads up so bad that it takes 25-30 yards of WOT before it clears it's throat enough to shift into second. It seems to have much better power than it did before I sent it in, but it's still not even close to the power output of my LRP28. It's running around 210F.
If I lean either the HSN or LSN even so much as 1/16 of a turn, it gets that weird hollow sound and revs up an insane amount, then almost stalls when I try to give it gas. If I go over 1/2 throttle, the engine just cuts out. If I let up quickly, it comes back then idles way too high. I richen the HSN 1/16 turn and then I can run WOT. Leaning the LSN has similar results, but then idles very badly and the idle adjustment has almost no impact.
I have to be over a gallon now. I ran 3 150cc tanks through it today, then busted my exhaust wire and had to end the bash session.
Any thoughts on the tune or general issues that can be tuned out of this thing?
Seems like an awful lot of trouble for a $100 engine... but I would like to have it run as good as it can. I've read so many people having good luck with this engine and I can't figure out why I can't. This isn't my first engine... if it was, I may have given up!
Thanks.
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