engine keeps failing plugs. got any advice?
#1
engine keeps failing plugs. got any advice?
in three days iv blown thrue three glow plugs and I never have glow plugs go bad before a gallon. the engine actually runs really good maybe a bit ritch on top and lean on bottom but runs 230 250 between mid day and before the sun goes down. im running orion 5 plug and its normally dry humidity 75 degrees mid day. so any ideas?
#2
Tech Adept
If your engine is going through glow plugs that fast I would take the engine apart and inspect the internals and make sure there's no damage. How is the pinch/compression on it? Any leaks? If all is good reset your needles to factory setting and try again.
#3
What mill and fuel? Not that that really matters, just curious.
One thign I would suggest is to look at your pipe. Has it been damaged recently? I had a mill last year, towards the end of the season it started blowing plugs left and right. Never could figure it out. Eventually, I pulled it and in doing so, found the bottom of the pipe was almost totally flat. Due to crappy weather, I havn't yet had a chance to test it with a new pipe...but hopefully soon.
One thign I would suggest is to look at your pipe. Has it been damaged recently? I had a mill last year, towards the end of the season it started blowing plugs left and right. Never could figure it out. Eventually, I pulled it and in doing so, found the bottom of the pipe was almost totally flat. Due to crappy weather, I havn't yet had a chance to test it with a new pipe...but hopefully soon.
#5
Tech Adept
Change the rod and check your head shims are all there...
#7
Tech Regular
I had the same problem before I got through my first gallon on one of my engines. My engine was the same way. Lean on bottom and richer on top. I was blowing them every half a tank to full tank.
I would try and richen out the bottom end a little if your running it lean and lean our your top end.
That fixed my problem and I have been able to hold glow plugs to half a gallon or more if I really choose too in that engine.
Just to be safe I would inspect your internals on the Mill and if all is ok try the needle settings I suggested.
I would try and richen out the bottom end a little if your running it lean and lean our your top end.
That fixed my problem and I have been able to hold glow plugs to half a gallon or more if I really choose too in that engine.
Just to be safe I would inspect your internals on the Mill and if all is ok try the needle settings I suggested.
#8
its the orion crf .21 the engine doesnt have more then 2 gallons thrue it but its been just sitting in my bag for 8 months because i was sent the new us spec orion engine and it was running so good i didnt want to wear it out so i put the us spec carb on the older crf and tuned her and like i said 3 or 4 tanks and the glow plug wont keep burning when i gas it hard and turns off. ed from eb said its my exhoust because i keep tearing fuel lines at the nipple of the exhoust and nipple of the hight speed needle. im completly lost tho.
#9
jeff, normally constantly blown plugs are due to bad rear bearing, send that thing to joe and I'll go through it for you
#11
Tech Addict
in three days iv blown thrue three glow plugs and I never have glow plugs go bad before a gallon. the engine actually runs really good maybe a bit ritch on top and lean on bottom but runs 230 250 between mid day and before the sun goes down. im running orion 5 plug and its normally dry humidity 75 degrees mid day. so any ideas?
#12
number 800's little bro?
#14