[C38] stop switch
Max Soto
maxsoto at gmail.com
Tue Feb 28 10:38:44 EST 2012
Julian,
While installing a single lever control, I noticed that there is no way to
shut down the 5424 without pulling hard the throttle lever.
There are only two levers on the 5424, a throttle and a decompression
lever. There is no stop lever on the 5424, The throttle lever is the one
that shuts the engine down. The is a linkage on starboard side of the
engine that looks like a lever, but is just a linkage.
The system is easy to adjust. At the beginning, at was afraid to pull the
throttle lever on the pedestal too hard, but after checking the system, I
noticed that there is a heavy spring that needs to be pulled hard.
I recommend you to disconnect the lever and linkage at the engine and try
it manually. Is easy to accelerate and shut it down. That way, you'll be
able to adjust it so it works ok for you.
So, While I install the new engine (which has a shut down solenoid), The
single lever is disconnected.
I have three levers on the pedestal and only two are functional.
Hope this helps.
Max Soto
Estancia
2012/2/28 Julian Adams <julian at umich.edu>
> Thanks Don. Well you anticipated my query. I know that other boats have
> a stop lever, but mine (I have Universal 5424 engine) does not. I had
> always thought that that second stop lever was for compression release.
> Every so often I cannot stop the engine by pressing down on the throttle
> lever so that’s when I go down below open up the engine compartment and
> lift the compression release lever. So what is the stop lever connected
> to if it is not the compression release?
> Julian****
>
> ** **
>
> ** **
>
> ** **
>
> **[image: Description: seal2]**
> ****************************************************************************
> Julian Adams
> Professor of Molecular, Cellular and
> Developmental Biology, and of
> Ecology and Evolutionary Biology, University of
> Michigan
> 830 N. University, Ann Arbor MI 48109-1048
> Tel. (734)-763-3431; Fax (734)-647-0884;
> E-mail julian at umich.edu
>
> ****************************************************************************
> ****
>
> ** **
>
> *From:* Don Strong [mailto:drstrong at ucdavis.edu]
> *Sent:* Monday, February 27, 2012 4:03 PM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] stop switch****
>
> ** **
>
> Dear Julian: My Yanmar has two levers on the bow end, starboard side of
> the engine. One is the throttle, and the other is what Yanmar calls the
> "stop lever."
> Both are connected by cables to the cockpit. Pill on the cable for the
> stop in the cockpit, and the engine stops instantly. If the cockpit cable
> freezes up, as it did before I replaced the cable, the engine can be
> stopped by pushing on the stop lever on front of the engine.
> The compression release is used for just what Chuck suggests. I also
> used it once when the manifold bolts broke, which resulted in exhaust water
> shooting into the exhaust ports. I killed the engine, opened the
> compression releases, squirted diesel into each cylinder, and turned the
> engine over with the battery. No harm resulted to the engine from this
> potential disaster. We replaced the bolts and running again in two hours.
> If it had been a gas engine, I would have had to remove the spark plugs to
> clear any water from the cylinders.
>
> Don
>
> On 2/27/12 12:49 PM, Chuck Finn wrote: ****
>
> We stop our engines by starving them of fuel. The reason diesel engines
> don't have spark plugs is cylinder compression is high enough to cause the
> fuel to begin and sustain combustion. The decompression lever simply
> lowers the compression pressure in the cylinders and is generally used to
> help turn over our engines when it is very cold or the battery is low. It
> can be used in an emergency to shut down the diesel, but this leaves fuel
> in the cylinders (not good) and causes hot gases to blow by the partially
> opened valves. While this probably does not hurt once in a while, I
> believe it would hurt your valve seats, guides, etc. in the long run.
> Besides the fact you are mucking up your engine!
>
> If you are having trouble starving the engine, you need to adjust your
> throttle linkage.
>
> Hope this helps!
> Chuck Finn
> Mighty Quinn #114
> Great Lakes
>
> On 2/27/2012 12:06 PM, Julian Adams wrote: ****
>
> I note the Service manual says that you must not use the decompression
> lever to stop the engine – saying it causes serious damage to the exhaust
> valves. I’ve used it many times – is this really a problem. What does
> it do to the Exhaust valves? (and what is it for anyway?)
> Julian Adams****
>
> ****
>
> *From:* Steve Smolinske [mailto:SSmolinske at rainierrubber.com<SSmolinske at rainierrubber.com>]
>
> *Sent:* Sunday, February 26, 2012 5:59 PM
> *To:* Catalina 38 Listserve
> *Subject:* Re: [C38] head gasket****
>
> ****
>
>
> http://www.marinedieseldirect.com/universal/200157/universal-owners-manual-caution-statements.html
> ****
>
> ****
>
> Universal engine manuals online****
>
> ****
>
> Steve****
>
> ****
>
> *From:* listserve-bounces at catalina38.org
> [mailto:listserve-bounces at catalina38.org] *On Behalf Of *PAUL NOTTE
> *Sent:* Sunday, February 26, 2012 11:36 AM
> *To:* listserve at catalina38.org
> *Subject:* [C38] head gasket****
>
> ****
>
> I need to change the head gasket on Impulse and I'm looking for a free
> repair manual , has anyone found one on the net ?****
>
> ****
>
> Paul ****
>
> Impulse ****
>
> ****
>
>
>
>
> ****
>
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> ****
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> -- ****
>
> Donald R. Strong****
>
> Professor****
>
> Dept. of Evolution and Ecology****
>
> University of California, Davis 95616****
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--
Max Soto
C38 #198 ESTANCIA
Puntarenas, Costa Rica
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