Dle 30cc overheat
09-04-2019, 01:25 PM
#1
Thread Starter
Join Date: Nov 2017
Posts: 36
Likes: 0
Received 0 Likes
on
0 Posts
Dle 30cc overheat
Hi i have a new dle 30 cc engine in H9 30cc stick..
Have set the idle rich and after 2 minuts of fligth my engine quits and i feel that is overheating..
It start easy..
I already check fuel tank, ignition.
Any advice of what to do?
The engine has 5 fligths and every fligth it quits in the air and in the groud.
Have set the idle rich and after 2 minuts of fligth my engine quits and i feel that is overheating..
It start easy..
I already check fuel tank, ignition.
Any advice of what to do?
The engine has 5 fligths and every fligth it quits in the air and in the groud.
09-04-2019, 11:00 PM
#2
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
Posts: 500
Likes: 0
Received 2 Likes
on
2 Posts
Its the High Speed needle you need to run richer than what it is. Without any other contributing factors/unknown variables, it sounds like your engine is getting to hot, and quitting as a result.
09-05-2019, 04:09 AM
#3
My Feedback: (2)
The Stick leaves the engine wide open to cooling air, no? I doubt it's over heating. I'm wondering about the battery you have powering the ign. If it's low, it might act like that. When checking the battery voltage, it needs to have a load on it. Without a load it may show fine, only to drop down below minimum as soon as you place a load on it.
09-09-2019, 10:48 PM
#4
Thread Starter
Join Date: Nov 2017
Posts: 36
Likes: 0
Received 0 Likes
on
0 Posts
I will put the engine in a stan this week and try the baterry and making the higth and low more recher..
but at the field i alredy set it very rich.. so reach that the engine did not gave full power and and quit on me exackly 3 minutes after starter.
i was wondiring how much the compretion should be for this engine?
but at the field i alredy set it very rich.. so reach that the engine did not gave full power and and quit on me exackly 3 minutes after starter.
i was wondiring how much the compretion should be for this engine?
09-10-2019, 12:45 AM
#5
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
Posts: 500
Likes: 0
Received 2 Likes
on
2 Posts
The Stick leaves the engine wide open to cooling air, no? I doubt it's over heating. I'm wondering about the battery you have powering the ign. If it's low, it might act like that. When checking the battery voltage, it needs to have a load on it. Without a load it may show fine, only to drop down below minimum as soon as you place a load on it.
OP, how do you know it is running richer than what is deemed normal?
09-13-2019, 03:04 PM
#6
There really is not enough information here to really have any idea of what is going on. The OP needs to go down a checklist of things.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
09-15-2019, 03:57 AM
#7
My Feedback: (2)
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
08-28-2022, 09:15 AM
#9
Dle 30
Originally Posted by [email protected]
Hi i have a new dle 30 cc engine in H9 30cc stick..
Have set the idle rich and after 2 minuts of fligth my engine quits and i feel that is overheating..
It start easy..
I already check fuel tank, ignition.
Any advice of what to do?
The engine has 5 fligths and every fligth it quits in the air and in the groud.
Have set the idle rich and after 2 minuts of fligth my engine quits and i feel that is overheating..
It start easy..
I already check fuel tank, ignition.
Any advice of what to do?
The engine has 5 fligths and every fligth it quits in the air and in the groud.
08-28-2022, 10:57 AM
#10
Join Date: Jan 2004
Location: lake in the Hills,
IL
Posts: 977
Likes: 0
Received 14 Likes
on
14 Posts
There really is not enough information here to really have any idea of what is going on. The OP needs to go down a checklist of things.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
I think as I read this post I am struck by how many fail to see the importance of ducting even completely exposed engines. Clearly not understanding the meaning of "path of least resistance".
There was a long running joke at my field about a guy who kept talking about laminar flow, what a bunch of teasers we have there.
08-28-2022, 01:47 PM
#11
The OP never came back with any more info, without info all we can do is guess.
I think as I read this post I am struck by how many fail to see the importance of ducting even completely exposed engines. Clearly not understanding the meaning of "path of least resistance".
There was a long running joke at my field about a guy who kept talking about laminar flow, what a bunch of teasers we have there.
I think as I read this post I am struck by how many fail to see the importance of ducting even completely exposed engines. Clearly not understanding the meaning of "path of least resistance".
There was a long running joke at my field about a guy who kept talking about laminar flow, what a bunch of teasers we have there.
08-28-2022, 02:58 PM
#12
Join Date: Jan 2004
Location: lake in the Hills,
IL
Posts: 977
Likes: 0
Received 14 Likes
on
14 Posts
There are other useful bits you could include:
What are and how did you set your High and Low speed needles?
Did this just occur on new engine or did this engine run trouble free and then start acting up 30-300 flights down the road?
How much experience do you have with 2 cycle gas engines?
I checked out the OP's 34 posts and found that most were questions about marketplace ads for Jets for sale and would you sell without turbine.
So cough up some info and let us find your problem.
08-28-2022, 03:12 PM
#13
Perhaps unlike the OP you could answer all the questions pointed out!
There are other useful bits you could include:
What are and how did you set your High and Low speed needles?
Did this just occur on new engine or did this engine run trouble free and then start acting up 30-300 flights down the road?
How much experience do you have with 2 cycle gas engines?
I checked out the OP's 34 posts and found that most were questions about marketplace ads for Jets for sale and would you sell without turbine.
So cough up some info and let us find your problem.
There are other useful bits you could include:
What are and how did you set your High and Low speed needles?
Did this just occur on new engine or did this engine run trouble free and then start acting up 30-300 flights down the road?
How much experience do you have with 2 cycle gas engines?
I checked out the OP's 34 posts and found that most were questions about marketplace ads for Jets for sale and would you sell without turbine.
So cough up some info and let us find your problem.
08-28-2022, 03:59 PM
#14
Join Date: Jan 2004
Location: lake in the Hills,
IL
Posts: 977
Likes: 0
Received 14 Likes
on
14 Posts
There really is not enough information here to really have any idea of what is going on. The OP needs to go down a checklist of things.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
Oil ratio and type
prop size
power source for ignition
DLE or NGK plug
how is the fuel being filtered
One thing I will comment on. Being a non cowled installation has very little bearing on operating temp provided the cowl has been cut correctly. A well baffled cowl can actually reduce running temps. Air will always take the path of least resistance, this means that unless the cylinder is baffled the air will flow around the cylinder fins instead of through them.
I hate typing! With out good info tho, remote trouble shooting is near impossible. Yes DLE spark plugs have been problems in the past.
Data, data and more data is what the process is.
08-28-2022, 10:11 PM
#15
Look at these questions. Please answer them all. Beside prop size I like to know construction, wood type, manufacturer, composite, balanced.......? DLE has been selling these for years, I have one new in the box that voltage for ignition is 4.8 - 6.0 volts what does yours require? Todays require 6v -8.4v
I hate typing! With out good info tho, remote trouble shooting is near impossible. Yes DLE spark plugs have been problems in the past.
Data, data and more data is what the process is.
I hate typing! With out good info tho, remote trouble shooting is near impossible. Yes DLE spark plugs have been problems in the past.
Data, data and more data is what the process is.
08-31-2022, 06:15 AM
#16
Join Date: Jan 2004
Location: lake in the Hills,
IL
Posts: 977
Likes: 0
Received 14 Likes
on
14 Posts
Thanks for the depth of info.
First:
If the plug is DLE replace it with one that says NGK period, gap to .20.
Use a tach or a really good ear to reset both needles. Do the high speed first. plane restrained throttle full open. Tune for peak rpm then richen 1/8 turn.
This engine sounds too new for a perfect idle, so go for 2000 rpm and able to not die with a steady advance to full.
Don't make so many changes at once that what works is still a guess.
IMHO
First:
If the plug is DLE replace it with one that says NGK period, gap to .20.
Use a tach or a really good ear to reset both needles. Do the high speed first. plane restrained throttle full open. Tune for peak rpm then richen 1/8 turn.
This engine sounds too new for a perfect idle, so go for 2000 rpm and able to not die with a steady advance to full.
Don't make so many changes at once that what works is still a guess.
IMHO
Last edited by kmeyers; 08-31-2022 at 12:40 PM.
