Problem with OS .61RF-ABC-P
04-13-2002 | 10:32 PM
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From: Springvale SouthVictoria, AUSTRALIA
Problem with OS .61RF-ABC-P
I have a problem with 2 OS .61RF-ABC-P engines, basically they both stop dead at about 3/4 throttle, both are in different models (F3A with OS Pipes) and both have been re-plumbed.
The engines have also been run in a test stand with it's own fuel tank and plumbing, same problem...
Glow plugs have been changes at least twice in each engine.
My fuel consists of 20% Oil (Powermaster) 20% Nitro and the remainder methanol.
These engines have been stored in a well lubricated state for the last five years and immediately prior to that both pumps and carbys were returned to the factory in Japan for checking and calibration.
I hope you are able to throw some light on this problem, my experience with models and engines I hate to admit goes back to when I was a kid in 1950.... and I normally don't have any problems with engines.
The engines have also been run in a test stand with it's own fuel tank and plumbing, same problem...
Glow plugs have been changes at least twice in each engine.
My fuel consists of 20% Oil (Powermaster) 20% Nitro and the remainder methanol.
These engines have been stored in a well lubricated state for the last five years and immediately prior to that both pumps and carbys were returned to the factory in Japan for checking and calibration.
I hope you are able to throw some light on this problem, my experience with models and engines I hate to admit goes back to when I was a kid in 1950.... and I normally don't have any problems with engines.
04-15-2002 | 11:02 AM
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From: Tuscola,
IL
Problem with OS .61RF-ABC-P
Mike,
It sure sounds to me like a sticky regulator from sitting so long. It just can't let enough fuel through at those volume levels. Please send at least one of them in and let hte service teams find the problem for you.
Sincerely,
Mrs. AnnMarie Cross
Senior Manager, Proprietary Services and Support
Great Planes Model Distributors
[email protected]
www.greatplanes.com
www.bestrc.com
NO AUTORESPONDER
It sure sounds to me like a sticky regulator from sitting so long. It just can't let enough fuel through at those volume levels. Please send at least one of them in and let hte service teams find the problem for you.
Sincerely,
Mrs. AnnMarie Cross
Senior Manager, Proprietary Services and Support
Great Planes Model Distributors
[email protected]
www.greatplanes.com
www.bestrc.com
NO AUTORESPONDER
02-01-2003 | 03:07 PM
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From: Melbourne, AUSTRALIA
O.S. 61rf-p
Dear Mike,
I have problems with my engine as well, I just got this engine with an os tune pipe and am having problems getting it to run properly. I'm running a 12-11 apc prop and have no idea what the pipe length should be and dont even know where to measure the size. If you worked out your problems could you please help me out.
Regards Michael Pocock.
I have problems with my engine as well, I just got this engine with an os tune pipe and am having problems getting it to run properly. I'm running a 12-11 apc prop and have no idea what the pipe length should be and dont even know where to measure the size. If you worked out your problems could you please help me out.
Regards Michael Pocock.
02-03-2003 | 01:32 AM
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From: Springvale SouthVictoria, AUSTRALIA
Problem with OS .61RF-ABC-P
Hi Michael,
Whilst we have spoken about this problem, I felt an answer here would help anybody else that may have had an interest in this problem.
My problem turned out to be old fuel that ran fine in four strokes but caused problems in two of these OS .61 RF ABC-P's, I found the problem by running a brand new engine still in the box and it exhibited the same symptoms and fuel was the only common denominator. New fuel cured all problems....
I have been turning APC 13 x 9 props to slow things down a bit and improve down hill braking and the pipe length fro the Glo plug to the first baffle is 484mm (19.01")
Hope that helps
Mike Chipchase
Whilst we have spoken about this problem, I felt an answer here would help anybody else that may have had an interest in this problem.
My problem turned out to be old fuel that ran fine in four strokes but caused problems in two of these OS .61 RF ABC-P's, I found the problem by running a brand new engine still in the box and it exhibited the same symptoms and fuel was the only common denominator. New fuel cured all problems....
I have been turning APC 13 x 9 props to slow things down a bit and improve down hill braking and the pipe length fro the Glo plug to the first baffle is 484mm (19.01")
Hope that helps
Mike Chipchase
