I just picked up a 1984 C-30 with a 14 hp universal diesel engine. The PO used to shut it down by pulling the decompression lever. I read in the owners manual that this is bad for the exhaust valves and will damage them if the engine is stopped in this manner. When I follow the manufacturer recommended process of backing down the throttle, and holding it till the engine dies, it will not quit.... So I have left the engine running, boat in slip, until I can get an answer from y'all, just kidding..... How does the masses shut down their diesel. If all I need to do is make an adjustment, do I do so on throttle cable or isw there more to it?
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Adjust the throttle...
Mark, I have read all over that shutting down with the throttle is the proper way to do it. My engine dies in about 3 or 4 seconds after the throttle is put all the way to slow. Maybe just a throttle adjustment is needed. Chris
Mark, I have read all over that shutting down with the throttle is the proper way to do it. My engine dies in about 3 or 4 seconds after the throttle is put all the way to slow. Maybe just a throttle adjustment is needed. Chris
Decompression lever?
Depending on what type throttle you have makes a difference. Some have a detent on the lever, when pulled back shuts off fuel. Most common fuel shutoff is a T-handle in the cockpit at the instrument panel. The decompression lever is on the back of the engine valve cover and normally should be left alone. Sounds like the PO didn't know the difference.
Depending on what type throttle you have makes a difference. Some have a detent on the lever, when pulled back shuts off fuel. Most common fuel shutoff is a T-handle in the cockpit at the instrument panel. The decompression lever is on the back of the engine valve cover and normally should be left alone. Sounds like the PO didn't know the difference.
Fuel Shutoff
I agree with Don, the 'T' handle at the control panel shuts off the fuel to the diesel.
I agree with Don, the 'T' handle at the control panel shuts off the fuel to the diesel.
Diesel shutdown
Mark; If your engine is the small Universal like the 5411, pushing the throttle forward shuts off fuel at the high pressure pump and the engine stops. There is no T-handle on that engine.
Mark; If your engine is the small Universal like the 5411, pushing the throttle forward shuts off fuel at the high pressure pump and the engine stops. There is no T-handle on that engine.
No other controls
True, the 5411 has no other control like "t-handle". You must use the throttle to shut down.
True, the 5411 has no other control like "t-handle". You must use the throttle to shut down.
shut down
Mark I have a Cat 30 with a 5411 diesel. If you follow the throttle cable to the engine you will find a place to adjust it. There should be a threaded rod with a little square fitting on it. You should see a small cotter pin that when removed will allow you to move this fitting to adjust the "throw" of the cable. It sounds like an adjustment problem to me. When I installed this engine I had to play with this adjustment untill the engine shut off properly. You should be able to push the throttle lever all the way forward hold it there and have a shutdown in 5 seconds or so. Good Luck Gary
Mark I have a Cat 30 with a 5411 diesel. If you follow the throttle cable to the engine you will find a place to adjust it. There should be a threaded rod with a little square fitting on it. You should see a small cotter pin that when removed will allow you to move this fitting to adjust the "throw" of the cable. It sounds like an adjustment problem to me. When I installed this engine I had to play with this adjustment untill the engine shut off properly. You should be able to push the throttle lever all the way forward hold it there and have a shutdown in 5 seconds or so. Good Luck Gary
Throttle back
5411 Folks, I have been following this thread, since my 1982 C27 also has this engine. When I bought it this spring, the first time I ran it I could not find a way to shut it off, as there was no fuel cut-off as I had expected. But a little experimentation yielded a détente (if that is the right word) in the throttle back position. If I go past the détente, it starts to accelerate again! Anyone else have this arrangement? Seems to work fine, but I am surprised that it seems unique. Another question on the 5411: it turns out I have a thermostat housing sans thermostat. Should I get one installed? I needed to have the raw water system (the nonly cooling water) cleaned out half way through the summer, which is when I found this out! Thanks for all the helpful info!
5411 Folks, I have been following this thread, since my 1982 C27 also has this engine. When I bought it this spring, the first time I ran it I could not find a way to shut it off, as there was no fuel cut-off as I had expected. But a little experimentation yielded a détente (if that is the right word) in the throttle back position. If I go past the détente, it starts to accelerate again! Anyone else have this arrangement? Seems to work fine, but I am surprised that it seems unique. Another question on the 5411: it turns out I have a thermostat housing sans thermostat. Should I get one installed? I needed to have the raw water system (the nonly cooling water) cleaned out half way through the summer, which is when I found this out! Thanks for all the helpful info!
5411 or M-18??
Your engine is a 14 hp - is it the Universal M-18 (that is what I replaced my 1979 5411 with) It is a mid-1980's 14 hp. It has a shut off T-handle in the cockpit. My old 5411 shut down by throttling back and holding it for 5 seconds or so. If its the M-18, the parts and owners manual shows the shut-down arrangement.
Your engine is a 14 hp - is it the Universal M-18 (that is what I replaced my 1979 5411 with) It is a mid-1980's 14 hp. It has a shut off T-handle in the cockpit. My old 5411 shut down by throttling back and holding it for 5 seconds or so. If its the M-18, the parts and owners manual shows the shut-down arrangement.
Seen that movie!!
I had a 34' o'day with the 3 cyl universal (23HP) On the valve (rocker) cover, there was a lever, that actuated a shaft that had adjustable balls on it. the balls would contact the exhaust valves, not allowing them to seat and thusly, the engine to lose compression. This is an emergency kill (in the event the engine is running away) it also can be used to start the engine if the battery is failing, the engine turns over WAY faster with the lever actuated. The lever on my boat was not connected to any cable, but it would have been very easy to do so. The reason universal frowns on using the lever for run of the mill shut down is because prolonged use of the decomp. can cause exhaust valve failure. When i got my boat, i noticed the throttle shaft had a spring in it, keeping it just forward, The spring was junk and the throttle shaft (from inj. pump to governor assy) was damaged. I got a piece of 1/4' stainless rod and threaded both ends and used snap fittings on the ends that would accomodate the balls on the pump and the govornor assy, complete with jamnuts. Ideally i would have threaded one side left hand so it could be easier to adjust. I adjusted it to acheive wide open throttle, while still being able to shut completely off. this kills the fuel supply. Without the spring in place, there is no detent to push against so the engine will not idle where it rests, in fact, it will not rest at all. thanks for reading this killer long posting, hopefully it clears up some items. John
I had a 34' o'day with the 3 cyl universal (23HP) On the valve (rocker) cover, there was a lever, that actuated a shaft that had adjustable balls on it. the balls would contact the exhaust valves, not allowing them to seat and thusly, the engine to lose compression. This is an emergency kill (in the event the engine is running away) it also can be used to start the engine if the battery is failing, the engine turns over WAY faster with the lever actuated. The lever on my boat was not connected to any cable, but it would have been very easy to do so. The reason universal frowns on using the lever for run of the mill shut down is because prolonged use of the decomp. can cause exhaust valve failure. When i got my boat, i noticed the throttle shaft had a spring in it, keeping it just forward, The spring was junk and the throttle shaft (from inj. pump to governor assy) was damaged. I got a piece of 1/4' stainless rod and threaded both ends and used snap fittings on the ends that would accomodate the balls on the pump and the govornor assy, complete with jamnuts. Ideally i would have threaded one side left hand so it could be easier to adjust. I adjusted it to acheive wide open throttle, while still being able to shut completely off. this kills the fuel supply. Without the spring in place, there is no detent to push against so the engine will not idle where it rests, in fact, it will not rest at all. thanks for reading this killer long posting, hopefully it clears up some items. John
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