YS DZ200cdi
03-24-2018, 04:12 PM
#101
Join Date: Jan 2009
Location: NEWCASTLE, AUSTRALIA
Posts: 342
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Hey Claude,
I only use the Hatori #178 O ring. I've found this one lasts much longer than other brands I've tried.
I have 119 flights on mine now and it's running great. I have had one problem that has reoccured twice, but hopefully I've got that sorted now.
Have you any idea what area the oil is coming from? Like which part of the engine has oil on it?
Scott
I only use the Hatori #178 O ring. I've found this one lasts much longer than other brands I've tried.
I have 119 flights on mine now and it's running great. I have had one problem that has reoccured twice, but hopefully I've got that sorted now.
Have you any idea what area the oil is coming from? Like which part of the engine has oil on it?
Scott
You must have the muffler at the same height as the Header and they have to be parallel to each other otherwise you will create a stress point on the O ring and over time with the movement of the engine the O ring will deteriorate at the stress point and oil leakage will occur
Hope this helps
03-24-2018, 04:40 PM
#102
I use the HATORI O ring as well but what I found is that the positioning of the muffler onto the Header is very important.
You must have the muffler at the same height as the Header and they have to be parallel to each other otherwise you will create a stress point on the O ring and over time with the movement of the engine the O ring will deteriorate at the stress point and oil leakage will occur
Hope this helps
You must have the muffler at the same height as the Header and they have to be parallel to each other otherwise you will create a stress point on the O ring and over time with the movement of the engine the O ring will deteriorate at the stress point and oil leakage will occur
Hope this helps
04-14-2018, 09:34 AM
#104
I have a new DZ200 CDi and I cannot get fuel flow through the injector. I also have a DZ185 replacement head assembly with this new type of injector in it, and that won't allow fuel to flow through it either. Has anyone else experienced this or am I missing something?
Thanks
Keith
Thanks
Keith
04-30-2018, 04:05 AM
#105
I have a new DZ200 CDi and I cannot get fuel flow through the injector. I also have a DZ185 replacement head assembly with this new type of injector in it, and that won't allow fuel to flow through it either. Has anyone else experienced this or am I missing something?
Thanks
Keith
Thanks
Keith
05-01-2018, 01:20 PM
#107
Hi All,
Thanks for your replies. My Yamada sorted it out in an email. In fact if I'd read the instruction manual for the 200 CDi, it would have told me.
When I replaced the head on my 185, it came with the new injector. However when I set it all up to run I used the original thick walled silicone from needle valve to injector. The new one way valve relies on the fuel tube flexing under pump pressure, thereby allowing fuel to flow between the inside of the fuel tube and the outside of the nipple before reaching the small hole that's drilled across the diameter of the nipple a few mm back. That's why the "normal" orifice to the nipple is blocked. The solution is to do as YS say and use thin walled silicone which allows enough flex at the nipple to allow the fuel to flow in this manner. And it says this in the manual as well!
I didn't run the 200 after seeing the issue with the 185 head, thinking the new injector valve was somehow faulty... how did I check this.... I took a long length of thick walled tube and connected to the injector and found I couldn't blow through it!
Both engines running great now.
Thanks
Keith
Thanks for your replies. My Yamada sorted it out in an email. In fact if I'd read the instruction manual for the 200 CDi, it would have told me.
When I replaced the head on my 185, it came with the new injector. However when I set it all up to run I used the original thick walled silicone from needle valve to injector. The new one way valve relies on the fuel tube flexing under pump pressure, thereby allowing fuel to flow between the inside of the fuel tube and the outside of the nipple before reaching the small hole that's drilled across the diameter of the nipple a few mm back. That's why the "normal" orifice to the nipple is blocked. The solution is to do as YS say and use thin walled silicone which allows enough flex at the nipple to allow the fuel to flow in this manner. And it says this in the manual as well!
I didn't run the 200 after seeing the issue with the 185 head, thinking the new injector valve was somehow faulty... how did I check this.... I took a long length of thick walled tube and connected to the injector and found I couldn't blow through it!
Both engines running great now.
Thanks
Keith
05-01-2018, 01:34 PM
#108
Hi All,
Thanks for your replies. My Yamada sorted it out in an email. In fact if I'd read the instruction manual for the 200 CDi, it would have told me.
When I replaced the head on my 185, it came with the new injector. However when I set it all up to run I used the original thick walled silicone from needle valve to injector. The new one way valve relies on the fuel tube flexing under pump pressure, thereby allowing fuel to flow between the inside of the fuel tube and the outside of the nipple before reaching the small hole that's drilled across the diameter of the nipple a few mm back. That's why the "normal" orifice to the nipple is blocked. The solution is to do as YS say and use thin walled silicone which allows enough flex at the nipple to allow the fuel to flow in this manner. And it says this in the manual as well!
I didn't run the 200 after seeing the issue with the 185 head, thinking the new injector valve was somehow faulty... how did I check this.... I took a long length of thick walled tube and connected to the injector and found I couldn't blow through it!
Both engines running great now.
Thanks
Keith
Thanks for your replies. My Yamada sorted it out in an email. In fact if I'd read the instruction manual for the 200 CDi, it would have told me.
When I replaced the head on my 185, it came with the new injector. However when I set it all up to run I used the original thick walled silicone from needle valve to injector. The new one way valve relies on the fuel tube flexing under pump pressure, thereby allowing fuel to flow between the inside of the fuel tube and the outside of the nipple before reaching the small hole that's drilled across the diameter of the nipple a few mm back. That's why the "normal" orifice to the nipple is blocked. The solution is to do as YS say and use thin walled silicone which allows enough flex at the nipple to allow the fuel to flow in this manner. And it says this in the manual as well!
I didn't run the 200 after seeing the issue with the 185 head, thinking the new injector valve was somehow faulty... how did I check this.... I took a long length of thick walled tube and connected to the injector and found I couldn't blow through it!
Both engines running great now.
Thanks
Keith
If all else fails, read the instructions Lol.
I ordered some stuff from Yamada, so I got some of the injector fuel tube at the same time.
06-24-2018, 04:46 AM
#115
Update on my 200cdi.
The engine has done 183 flights. So with the rear bearing copping a lot now and prior bearing failures at 120 - 150 flights, it was time for a rebuild.
Surprisingly, the rear bearing wasn't too bad. There was no roughness when turning it and it still looked pretty good. The only thing I can think of for the lack of wear, is the Rapicon fuel I'm now using. Must be good oil in it. The front bearing is usually in good condition, but this one was a little rough though.
The plug is the original too. 183 flights, so pretty happy with that.
Front and rear bearings and all gaskets and O rings were replaced. I didn't replace the cam bearings. The ring was OK too, so left that in for another go. Even though the plug was still working fine, I replaced it as a matter of course.
It's back in the Xareltoo now, ready to go when the weather is favourable.
The engine has done 183 flights. So with the rear bearing copping a lot now and prior bearing failures at 120 - 150 flights, it was time for a rebuild.
Surprisingly, the rear bearing wasn't too bad. There was no roughness when turning it and it still looked pretty good. The only thing I can think of for the lack of wear, is the Rapicon fuel I'm now using. Must be good oil in it. The front bearing is usually in good condition, but this one was a little rough though.
The plug is the original too. 183 flights, so pretty happy with that.
Front and rear bearings and all gaskets and O rings were replaced. I didn't replace the cam bearings. The ring was OK too, so left that in for another go. Even though the plug was still working fine, I replaced it as a matter of course.
It's back in the Xareltoo now, ready to go when the weather is favourable.
06-27-2018, 05:43 AM
#121
Update on my 200cdi.
The engine has done 183 flights. So with the rear bearing copping a lot now and prior bearing failures at 120 - 150 flights, it was time for a rebuild.
Surprisingly, the rear bearing wasn't too bad. There was no roughness when turning it and it still looked pretty good. The only thing I can think of for the lack of wear, is the Rapicon fuel I'm now using. Must be good oil in it. The front bearing is usually in good condition, but this one was a little rough though.
The plug is the original too. 183 flights, so pretty happy with that.
Front and rear bearings and all gaskets and O rings were replaced. I didn't replace the cam bearings. The ring was OK too, so left that in for another go. Even though the plug was still working fine, I replaced it as a matter of course.
It's back in the Xareltoo now, ready to go when the weather is favourable.
The engine has done 183 flights. So with the rear bearing copping a lot now and prior bearing failures at 120 - 150 flights, it was time for a rebuild.
Surprisingly, the rear bearing wasn't too bad. There was no roughness when turning it and it still looked pretty good. The only thing I can think of for the lack of wear, is the Rapicon fuel I'm now using. Must be good oil in it. The front bearing is usually in good condition, but this one was a little rough though.
The plug is the original too. 183 flights, so pretty happy with that.
Front and rear bearings and all gaskets and O rings were replaced. I didn't replace the cam bearings. The ring was OK too, so left that in for another go. Even though the plug was still working fine, I replaced it as a matter of course.
It's back in the Xareltoo now, ready to go when the weather is favourable.
Hi Scott,
which Rapicon are you using?
regards
06-27-2018, 06:25 AM
#123
Oh, that explains, I am using 30% heli and it's ok but not that good compared to CoolPower.
I will have to contact the dealer in Spain I guess, but being the only one. How do you get it?
Best regards
I will have to contact the dealer in Spain I guess, but being the only one. How do you get it?
Best regards
06-30-2018, 10:11 AM
#125
