Major Engine Problem
#1
Major Engine Problem
Engine has some tiny copper pieces in it and ground up of some of the piston. Engine wouldnt rev up very high at all.
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
#2
Engine has some tiny copper pieces in it and ground up of some of the piston. Engine wouldnt rev up very high at all.
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
basically got to check everything:
Bearings
Crankpin
Sleeve
Conrod
#3
Wow. Is that due to just wear and tear? or is it from putting a hot glow plug in instead of a medium.
(Its a .21 BB, dont ask why we did that hahahah)
(Its a .21 BB, dont ask why we did that hahahah)
#4
Tech Addict
it depends what engine it is - the OS VZB uses the OS P3 plug, and thats the hottest plug available.
Some like it colder, others dont.
But from what you said, it does sound like the bushing in the rod gave out.
Give the engine a look through, maybe the piston and sleeve are still fine and all you need is a new rod.
Some like it colder, others dont.
But from what you said, it does sound like the bushing in the rod gave out.
Give the engine a look through, maybe the piston and sleeve are still fine and all you need is a new rod.
#5
Tech Fanatic
iTrader: (16)
clean
Engine has some tiny copper pieces in it and ground up of some of the piston. Engine wouldnt rev up very high at all.
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
#6
which bearing?
#7
the rear bearing is crusial to be checked. i have seen several motor damages
from a rear bearing going bad and bearing balls going walks inside the engine...
So i would suggest check if all bearing balls are inside the bearing and also check if it can spin freely. It would be good to remove it and check it precisely.
from a rear bearing going bad and bearing balls going walks inside the engine...
So i would suggest check if all bearing balls are inside the bearing and also check if it can spin freely. It would be good to remove it and check it precisely.
#8
Tech Rookie
Enigne Tear down
Engine has some tiny copper pieces in it and ground up of some of the piston. Engine wouldnt rev up very high at all.
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
For sure i know i need to replace teh piston, what about the rest of the engine components?
What else do you think i need to replace?
And do i need to break in the new piston and sleeve too?
Is O'donnell RACING fuel too low in oil content to break it in?
Thanks in advance...
i rebuild engines for $40.00 + parts, i break them in I also do engine mods, polish, porting, balancing,etc.
Adam
AMJA R/C Racing Inc.
#9
Tech Champion
iTrader: (44)
Your fuel and plug is not the problem but your needle settings for your air fuel mixture when breaking in is most likely the cause. You probably had it too lean which is why the engine didn't get enough lubrication.
Anytime you rebuild a motor with new parts you have to break in all over again. In your case, you're replacing a piston, sleeve and rod. Thats practically a whole new engine.
Anytime you rebuild a motor with new parts you have to break in all over again. In your case, you're replacing a piston, sleeve and rod. Thats practically a whole new engine.