ZDZ 60 Blueline Idling Problem  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> ZDZ & RCS Support >> ZDZ 60 Blueline Idling Problem
Page: [1]

Login
Message << Older Topic   Newer Topic >>
ZDZ 60 Blueline Idling Problem - 6/25/2007 4:36:23 PM   
Minch


 

Posts: 128
Joined: 10/6/2002
From: Haverfordwest, UNITED KINGDOM
Status: offline

I have a ZDZ 60 blueline which has developed idling problems, it won't idle below 2000rpm. I have had a few problems with it recently and am hoping someone can help. I was flying it a few weeks back and the headbolts came loose in flight and the engine stopped, I re-tightened the bolts but couldn't then get her to idle properly, I noticed that fuel seemed to be leaking out of the cylinder gasket and I thought that air may be getting in aswell. I purchased a new cylinder gasket last week which I have changed and engine is now leak free, I also fitted a new spark plug which had the gap checked and adjusted. I spent about 3 hrs sunday afternoon trying to get her to idle but no luck, she will peak out at full throttle, about 6400 rpm (24x8 prop and a JMB muffler) and the throttling from 2000 rpm to max is excellent. I have tried resetting carb low and high to factory and re-tuning but she still won't idle below 2000 rpm, she just peters out and stops.
When she stops she will not restart immediately, but if the plug is removed, then replaced untouched she will then restart.

I have also done a bit of research on the internet and a common idle problem seems to be that the throttle butterfly can be fitted backwards or if the carb is removed the butterfly can be incorrectly refitted, I checked on my engine and the butterfly appears to be working in the correct direction, the carb has never been removed. The engine has had aproaching 5 gallons of fuel throught it now and until recently it was running and idling ok.

Can anybody give me any ideas of something else to try??

Also tried:

New Fuel
New Ignition Battery
Re Timing engine - But sensor was in correct place.
New Plug.

Thanks In Advance

Nick

       Post #: 1

RE: ZDZ 60 Blueline Idling Problem - 6/25/2007 4:40:59 PM   
Mike Dooley/RCS


 

Posts: 514
Joined: 7/24/2002
From: MD
Status: offline 		Nick,
Do not run it anymore! You have an airleak causing it to run lean. That is bad.
Box it up and send it in for us to fix properly for you.
Thanks,

_____________________________

Mike Dooley
RC Showcase

(in reply to Minch)
       Post #: 2

RE: ZDZ 60 Blueline Idling Problem - 6/25/2007 5:30:49 PM   
Minch


 

Posts: 128
Joined: 10/6/2002
From: Haverfordwest, UNITED KINGDOM
Status: offline 		Mike,

Thanks for you reply, as I am in the UK and if you think its that serious I will get in touch with the UK ZDZ dealer where I purchased the engine. I think the engine is still be under warranty as I bought it in Jan 2005 and according to ZDZ's website they have a 42 month warranty.

Thanks

Nick

(in reply to Mike Dooley/RCS)
       Post #: 3

Page:   [1]
All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Manufacturers Direct Support Forum >> ZDZ & RCS Support >> ZDZ 60 Blueline Idling Problem
Page: [1]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.453RCU5