Carb settings for ASP 32 engine

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andrew man - 22 Oct 2003 00:58 GMT

A friend of mine has aquired a Nexus 30 with the ASP 32 heli engine.The
problem is trying to get the engine to run right .It idles perfectly but
every time the engine comes onto the main needle it hesitates and dies after
about 5 seconds.We (other club members ) have tried leaning and richening
the main needle but this does'nt seem to help.Fuel is 10% CP and glow plug
OS no8 .Anyone had any experiences with this engine and what needle settings
are you using ? I have checked for all obvious faults ( blocked filters
,changed plug etc).

John

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Chris Dugan - 22 Oct 2003 23:46 GMT

If the engine is spluttering to a halt as the throttle opens it could be
that the mixture (inside the throttle barrell) is too far open and needs
screwing in a bit.

Other than that it could possibly be some mechanical problem such as
cylinder head/ backplate or carb loose or too much/little compression i.e.
missing or extra head shim... has the engine been torn down just before this
problem appeared and maybe been put back together improperly?

Chris

> A friend of mine has aquired a Nexus 30 with the ASP 32 heli engine.The
> problem is trying to get the engine to run right .It idles perfectly but
[quoted text clipped - 6 lines]
>
> John

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andrew man - 23 Oct 2003 00:20 GMT

Hi Chris,
The engine is new and is running in.Apart from taking the carb. off to check
for manufacturing swarf the engine has not been taken apart . I have tried
3,6,9 clicks either side if starting point with no noticeable difference.I
will take you advice and try to srew the needle in a bit more.

John

> If the engine is spluttering to a halt as the throttle opens it could be
> that the mixture (inside the throttle barrell) is too far open and needs
[quoted text clipped - 23 lines]
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.530 / Virus Database: 325 - Release Date: 22/10/2003

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Muso - 25 Oct 2003 02:42 GMT

Andrew,
I have the same motor still running in my Lion Helicat.
The needle setting is sooooo sensitive you can only adjust 1 click at a
time. It can go from too rich to too lean in 3 clicks.
Just adjust 1 click at a time.

T

> A friend of mine has aquired a Nexus 30 with the ASP 32 heli engine.The
> problem is trying to get the engine to run right .It idles perfectly but
[quoted text clipped - 6 lines]
>
> John

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Model Forum / Radio Controlled / Helicopters / October 2003

Carb settings for ASP 32 engine