Boats For Sale:
Solenoid Burning Up |
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Hal A 
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Joined: August-18-2006 Location: United States Status: Offline Points: 3 |
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 Topic: Solenoid Burning UpPosted: August-18-2006 at 12:24pm |
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I have a buddy with an odd issue. His solenoid is sticking in the closed position so that once engaged it won't stop. He has replaced it several times and still has the problem. It does not happen every time but when it does, the only way to stop it is either let it burn up... not what he does... or disconnect it from the battery.
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79nautique
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Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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Posted: August-18-2006 at 12:32pm |
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well the battery needs check for CCA rating and the cables need to be inspected as well for corrosion and undersized cable or if an automotive cable was used on marine engine.
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: August-18-2006 at 1:36pm |
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Yup, and no Marine Deep Cycle battery, those are for fish motors.
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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cblars
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Joined: August-14-2006 Location: Oregon Status: Offline Points: 9 |
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Posted: August-18-2006 at 4:06pm |
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I have experienced the very same issue on my 1980 ski supreme. In fact, Gotta Ski gave me some very good tips to troubleshoot the problem - Gotta Ski, thank you. My problem was related to the blower motor and a poor connection at the dash. If I tried starting the engine with the blower on the solenoid would stick, keeping the starter engaged - tapping on the solenoid would free it up. I checked all the grounds - cleaned them up, etc. However, I found the connection at the dash for the blower motor was loose (on the fuse block). Not only was it affecting the starting, but the nav. lights would illuminate. After correcting the poor connection I have not had any problems. I guess the short version is, check for loose connections - grounds and otherwise.
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boat dr
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Joined: June-27-2004 Location: United States Status: Offline Points: 4245 |
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Posted: August-18-2006 at 9:29pm |
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79 what is the difference between an automotive cable vs. an automotive type. batteries,soleniods,cables and even the new perm. magnet starters are the same as those used in the automotive industry. the new starters don't even use the sealing plate around the armature ,the solenoid is different,but only in that it has two term. on swich the other to energize the electric fuel pump during cranking.i dont see any difference in the cables. sticking solenoids are often caused from excessive amperage,dragging starter,too small on the size of the cable,ground or positive,cheap battery(wally world or auto zone). also cheap chinese solenoids,buy the stuff that came on the boat,PCM motor PCM parts.... skidim,SE correct craft,buy good parts and the heaviest battery your wallet can afford
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JEFF KOSTIS
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Joined: April-19-2005 Location: United States Status: Offline Points: 817 |
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Posted: August-18-2006 at 9:44pm |
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Like mentioned, a cheap solenoid will give you trouble. Also make sure its a starter solenoid and not a continuous duty solenoid as you cant tell them apart from looking. Also make sure when installing a new one that you dont rotate the studs. Snugging up the jam nut against the solenoid body usually helps as they always seem to be loose from the factory on some. Generally if a hammer blow to it cures the problem, that means the contacts are stuck.
Jeff... |
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3363 |
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Posted: August-19-2006 at 7:05am |
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Yup, the contacts stick when they arc and weld together when the actuating voltage drops, holding force weakens due to the afformentioned reasons..battery type and capacity, small/inferior cables, dash connections/corrosion, corrosion in wire harness QD, etc
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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77stang
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Joined: May-19-2004 Location: United States Status: Offline Points: 342 |
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Posted: August-20-2006 at 3:55pm |
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primary difference between a good marine cable and an automotive cable is that the copper on a marine cable has been tinned. And as in all applications, gauge versus distance is critical.
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