[C320-list] Throttle issue

[Michael Rauh]

When you are in neutral the engine revs to proper speed.  When you put it in forward gear you don't get proper rpm.

Just a guess:
I'd have the transmission checked.  If something inside of it is putting a heavy load on the engine (worn bearings or gears) then it could cause a problem of lower speeds.

Mike
On Your Mark
#408  1997

Sent from my iPhone

> On Jul 4, 2017, at 18:45, Steve Turbis <sturbis at gmail.com> wrote:
> 
> When I had this problem it was a plugged exhaust-plugged with carbon.
> 
> Steve Turbis
> 34911 Calle Fortuna
> Capo Beach, CA. 92624
> 
> On Tue, Jul 4, 2017 at 12:55 PM, Utility Email <kswanson123 at comcast.net>
> wrote:
> 
>> Is the propellor clean?  I would magi g you could have significantly
>> reduced RPM with a fouled propellor or even a barnacle encrusted propellor.
>> 
>> David B. Swanson, P.E., S.E.
>> Principal, LEED AP, F. SEI
>> Director, Structural Engineering
>> 
>> Reid Middleton, Inc.
>> (425) 741-3800 office
>> (425) 741-5011 direct
>> (425) 508-7971 mobile
>> 
>> www.reidmiddleton.com
>> 
>> Washington | California | Hawaii | Alaska
>> 
>> 
>>> On Jul 4, 2017, at 12:38 PM, Jbrown5093 <jbrown5093 at gmail.com> wrote:
>>> 
>>> Fouled prop (growth, etc.).
>>> Jim Brown. 973
>>> 
>>> Sent from my iPad
>>> 
>>>> On Jul 3, 2017, at 5:43 PM, Onat Dogruer <onat_s at yahoo.com> wrote:
>>>> 
>>>> Hello all,
>>>> We have the Yanmar 3GM30F(EU) on our 1998 and this weekend I noticed a
>> problem with throttle. There is no RPM pick up once I pass 2200 and then
>> when I push the trottle all the way, it only pushes out 2860 rpm. I first
>> thought the cable was slipping so I checked both the helm arm and on
>> governor arm side connections. It looks normal. I then tried it in neutral
>> and noticed that I can get full 3660 rpm on neutral (checked with a laser
>> tachometer) Went out for a short cruise and again noticed that I can't get
>> more than 2800 in Forward.
>>>> Also fuel looks clean. I am going to change the fuel filter regardless.
>> The issue seem to be only when we are on forward which doesn't make any
>> sense.
>>>> What am I missing here? Any thoughts?
>>>> 
>>>> 
>>>> Sent from my T-Mobile 4G LTE Device
>> 
>>