Can anyone help me get a part

imported_rusty

Petty Officer 2nd Class
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Jun 27, 2005
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186
I am looking for a part for my 1989 85Hp Force motor. The part number is 89-803629T. <br />I have called around for the part but am having no luck getting it. Any ideas?
 

roscoe

Supreme Mariner
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Oct 30, 2002
Messages
21,752
Re: Can anyone help me get a part

No longer available from Mercury.<br /><br />What is the part?<br />Oh, a choke solenoid.<br /><br />Can't seem to find an aftermarket supplier either.<br /><br />Original part number was F654924 before it was replaced with 89-803629T<br /><br />I would suggest twincityoutboards.com or ebay<br /><br />Or possible rig up a cable so you can manually choke the motor without removing the hood.
 

luvsfishing

Cadet
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Jul 11, 2005
Messages
18
Re: Can anyone help me get a part

Try Doug Russell Marine at dougrussell.com. I have seen just about everything for a Force motor there, at least my 1987 50 HP, and he has diagrams there too!
 

imported_rusty

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Re: Can anyone help me get a part

will try them both thanks the trouble i am having is most times it chokes every now and them it wont i replaced the ignition switch already so i figure for 20 bucks i put in a new choke. my service manual says i can do a check on the solenoid with an ohmes meter i have a meter but dont understand how to do it. anybody?
 

t.martin

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Apr 27, 2005
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Re: Can anyone help me get a part

I can help you out with parts if you give me your email address.
 

eurolarva

Rear Admiral
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Jun 24, 2003
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Re: Can anyone help me get a part

I dont know if this is any help. Chrysler starter solinoids have a plunger in them that engages and disengages the choke butterfly. If your force is similar you should be able to fix it by removing the solinoid plunger and cleaning it and the hole it is in with WD 40 and Qtips. If this is a solid state relay then this is of no help. I looked at the parts breakdown for it however the picture is so low res it is hard to see.
 

imported_rusty

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Re: Can anyone help me get a part

i do have the plunger type do you think theres crud in the hole? it seems to operate by a magnet type pull down i am getting 12 volts up to the choke solenoid wire so thats good i did do an ohms check after i read my multi meter tester i think i did it right and it shows the solenoid is bad.
 

ljohns5582

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Oct 22, 2004
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Re: Can anyone help me get a part

When doing an resistance check (ohms check), you first set your meter to the lowest resistance scale to verify that your battery is good in your meter.Touch your meter leads together. You will read some very low number if battery is ok.(if you are using an analog meter then you will have to zero the reading with the adjustment knob.) This is the resistance in your meter plus leads. If no reading, replace battery.<br /> The next step is to measure the resistance of the solenoid. Attach the leads of the meter to the solenoid but do not hold them in your hands.You should read some higher number than your first check. If no reading on the lowest scale then move up to a higher scale to see if you get a reading. If you get a reading then the solenoid is probably good. Hope this helps. lj
 

eurolarva

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Re: Can anyone help me get a part

Crud in the plunger hole will deter the solinoid from working correctly. Spay a shot of WD 40 into the hole and clean it out with Q tips till it is clean. Take a rag and clean the plunger out the same way.<br /><br />By the way you can test the solinoid with a battery charger set to 12 volts. Disconnect the wire going to the solinoid and connect the red lead of the charger to the solinoid. Connect the black lead to ground or a metal part of your motor. Should work on a 2 amp trickle charger if that is all you have. That solinoid probably has a body ground to it. I would take it off the motor and clean up the parts that come in contact with the mounting screws and any part that comes in contact with the motor. Also make sure the wire going to the starter is tight and free of corrosion. Would not hurt to file or sand the contact clean. With an ohm meter you are probably going to read only about 0.6 ohms.
 

imported_rusty

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Re: Can anyone help me get a part

larryj i have a digital meter it has on the ohms scale 20m 2000k 200k 20k 2000 symbol underneath it and 200 and another symbol to the right so what is the lowest resistance scale? the service manual says if solenoid fall between 0.5-1.35 ok below or above must be replace. it said to set my meter at x1 ohm scale so what do i set my meter on for this test? as i am looking in the book i beleive they are showing an analog meter it has a picture showing x1 x10 x100 and so on.
 

imported_rusty

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Re: Can anyone help me get a part

eurolarva i have an extra choke that came with the boat when i hit that with the battery charger 12 volts no problem but when i installed it on the motor i think the choke is bad and only is reading about 7 volts thats why i think the choke solenoid is bad it not allowing full 12volts thru to activate the plunger.
 

eurolarva

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Re: Can anyone help me get a part

If the battery charger has enough juice to fire the solinoid your battery should have enough power. See if the wire going to the solinoid goes to the terminal strip on your motor where your wiring harness is hooked up to the motor. On my chrysler this is a green wire, If it goes there disconnect the wire from the terminal strip and try it there with the battery charger. If the charger will fire it to work from there connect the red lead of your meter on DC volts to the wire coming from the wiring harness and connect the black lead of the meter to ground. have someone push the key in and see what voltage you are reading at the terminal block with the solinoid disconnected. You should see about 12.5 volts. (this is with the boat battery connected.)<br /><br />When testing you choke solinoid your ohm meter needs to be set to 200 ohms setting. That is the lowest your meter will read. I doubt the solinoid reads higher then an ohm.
 

ljohns5582

Seaman
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Oct 22, 2004
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Re: Can anyone help me get a part

The 200 ohm scale is the lowest. This means that you can read a maximum of 2oo ohms on this scale ie 0-200. Turn your meter to the 200 ohm scale and touch your meter leads together making sure that you get a good connection and then read your meter. This is the resistance of your meter and leads. Then test the solenoid. Subtract the difference and this will be the resistance of the solenoid. The solenoid resistance should be very low.If no reading then solenoid is bad(open). <br /> Try cleaning as eurolarva suggested and check for mechanical linkage probs if this doesn't help then put a dc amp (current meter) on one one of the wires.(apply power)This will tell you if you have a broken wire on the inside of the solenoid. But your last post saying that you only have 7 volts on the solenoid when energized could mean two things. Either there is a loose connection maybe a ground wire to the frame(clean ends of wires) or there is a short circuit(wires inside of solenoid touching each other)either way your voltage should not be that low.Battery voltage should be around 14.5v before you try the solenoid and drop to around 12v. lj
 

imported_rusty

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Re: Can anyone help me get a part

hello larry thanks for the help first of all, second the choke solenoid has wires inside? yesterday i was getting 12v at the choke solenoid i put in an extra one that came with the boat when i bought it. 12v all over . old solenoid reading 0 tonight put that one back in the shed. i went out there just for double checking and the reading i got at the choke solenoid while the wife was in the boat doing the push key thing i read 7 volts again!! what the hell anyway i did a reading on the battery it read only 7 volts also so now maybe the battery was shorting out also off and on? just ran the boat all day on the water saturday and it started fine not sluggish at all anyway i called sears gave them the code they said the battery is from 6-98 so i guess its time for a new one which i will get tomorrow and give everthing another reading tomorrow with a fresh battery. can a battery shorten out like that intermitten? and can it play funny things when i take a 12v reading? thanks everyone will post again after i put in new battery tomorrow.
 

ljohns5582

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Oct 22, 2004
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Re: Can anyone help me get a part

Rusty,<br /> Glad to hear that you are making some progress with your solenoid. :)> Yea most solenoids have very fine wire which act as a magnet when energized. <br />A battery will sometimes breakdown under load- meaning that once you turn the key and put power on the solenoid and it tries to pull the plunger,the voltage will drop and the battery will not perform properly even though it read 12v before. <br /> I'm concerned about the ignition switch wiring.Why would a battery not work on a small solenoid but would work on a large starter? You said that the battery worked fine when you used it to start your boat but is intermittent when using the choke? Check the battery voltage with the switch off and again with the choke energized and let me know what it reads.<br /> Take the choke off and wire the neg wire to battery and just touch the pos lead. It should snap the plunger closed. It should also act this way when wired to the engine. lj
 

imported_rusty

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Re: Can anyone help me get a part

hi larry i mean the boat starts everytime just the solenoid was intermitted .sometimes it didnt want to work i am hoping the other solenoid is fine the one i just put in last night and just that the battery shorted out last night to give me the low reading that iam getting tonight . once i install the new battery hopefylly it will solve this problem. rusty
 

imported_rusty

Petty Officer 2nd Class
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Jun 27, 2005
Messages
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Re: Can anyone help me get a part

ok new battery in (i left the radio on from last week thats why the battery was dead) anyway i put in a new battery i alredy bought it .12volts all around until i connect the choke wire to the choke solenoid then when i check it at the choke sonenoid stud i get around 8 to 8 and a half volts. is the solenoid suppose to only draw around 8 volts? it still pulls the plunger down no problem . or is my second choke solenoid showing resistance? going bad? thanks for the replys.
 

eurolarva

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Jun 24, 2003
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Re: Can anyone help me get a part

I tested mine on my boat and this is what I got.<br /><br />With battery connected and choke in off position I read zero volts.<br /><br />With battery hooked up and meter on choke solinoid with key depressed I was reading 10.5 volts on the choke solinoid even though I was reading 12.45 volts on the battery. Here is my guess what is happening. If the coil inside the choke solinoid has a resistance of 0.6 ohms and you apply 12 volts the current draw would be about 20 amps. My guess it the small guage wire and the battery will not pull that kind of amps so it is limiting the amout of voltage. The wiring diagram shows that the 12 volts is being added through the key switch and there are no resistors to step down the voltage. YOurs is probably lower resistance then mine which is why the voltage you are reading on the choke solinoid is lower then mine.<br /><br />also on a fully charged battery you should be pulling around 12.75 volts instead of 12 volts. 12 volts read on a battery is about 1/4 charged.
 

ljohns5582

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Oct 22, 2004
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Re: Can anyone help me get a part

Rusty,<br /> Use the ohm meter to find the resistance of the solenoid. Once you know the resistance of the solenoid then you can determine the amount of current that it will draw. Just like eurolarva determined his current by dividing the resistance .6 ohms into the battery voltage of 12volts gave him 20 amps, you can do the same when you know both the voltage and the resistance.It sounds like eurolarva's numbers are a lot closer to what you should be getting than yours. Imho your battery should NOT be going to 8 volts.<br /> Eurolarva, if you will, measure the resistance of your solenoid and we will compare it with Rustyl's. It seems that we either have the wrong solenoid or a wiring problem. I don't believe that there is enough of a mechanical problem on this small solenoid to drop the battery from 12 to 8 volts. Does the wiring diagram show the resistance of the solenoid?
 
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