1969 Chrysler doesnt idle right

Red9654

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i have a 1969 chrysler outboard, 45 hp, model 4545, and until yesturday everything worked fine. but wen i went out fishing yesturday on my way back wen i was going at slow speed or just idling the motor slowly shut off like it was running out of gas or something. it worked perfect wen u gave it more gas, just going slow it stopped working. any suggestions?
 

wickware

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Re: 1969 Chrysler doesnt idle right

Have you tried adjusting your idle adjustment screw?

1. I think it is the only adjustment screw on the top of carb.

2. I would suggest, mark the present location and tweak it in both direction about 1/8th turns to see if this makes a difference.

3. I have had dirty points that gave my 1970 35 hp Chrysler the same affect. But! The high speed was affecter also. Such as: Stumbling out of the hole with hard acceleration and not holding WOT consistently vs surging.
 

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  • 1970, 35 HP Chrysler's Magneto System 2.JPG
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    2010 Cleaning Since 1985, as needed Greasing (5).JPG
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Red9654

Petty Officer 2nd Class
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Messages
137
Re: 1969 Chrysler doesnt idle right

I have adjusted the idle screw but nothing seems to happen
 

wickware

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Re: 1969 Chrysler doesnt idle right

1. Is the top performance 100% or just better?

2. Do you run any chemicals as Stabil? Running longer distances with Stabil seemed to settle my idle issue once. The longer hard run blowing it out was probably the cure. We were trolling about 1/4th mi fishing and back but some longer trips made a difference.

3. When did you check your points last? Mine were getting dirty from too much oil on the point?s cam wicks. I only check mine when I c/n find other causes in a drop of performance.

4. A good question is how often should the wicks get a drop or two of oil vs wearing the point?s rubbing block???
 

Red9654

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Re: 1969 Chrysler doesnt idle right

top performance if 100%. usually i put in an ethanol treatment in the gas. im not sure what u mean in number 3 becuz im am just starting to learn outboard motors
 

wickware

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Re: 1969 Chrysler doesnt idle right

#3 ref is history of the eng. Have you ever checked the points? #4 ref is how often should the Magneto sys be checked/serviced (points condition, eye-ball inspection of sys and oil wicks)? You will see one on light brown cam?s wicks oiled to reduce wear on point?s rubbing blocks.

Have you had a good WOT 3-5 mi run since the idle issue?
 

Red9654

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Re: 1969 Chrysler doesnt idle right

i havent gone anywhere since the issue. i talked to my mom and she said wen she put the gas cans away last year she didnt put any stabil in the tanks. could it have gotten gummed up and that is whats causin the probem? i put stabil intoday so should i run it sometime for a long time and see if that fixes it?
 

wickware

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Re: 1969 Chrysler doesnt idle right

I hate wasting gas! If it w/n treated and sat, a fresh treated load is what is recommended. Damages to lines/Etc is what I get from the info. Hopeful you have two or less gals that was not treated. Otherwise I would be tempted to mix the gas with treated gas (unless someone with personal experience objects).
 

Red9654

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Re: 1969 Chrysler doesnt idle right

so do you think that the lines and carburetor should be taken apart and cleaned out and i should replace the lines or should i just run fresh gas threw the motor and hope that cleans it out? or should i get carb cleaner and run it threw
 

wickware

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Re: 1969 Chrysler doesnt idle right

so do you think that the lines and carburetor should be taken apart and cleaned out and i should replace the lines or should i just run fresh gas threw the motor and hope that cleans it out? or should i get carb cleaner and run it threw

1. Do you have a glass bowl on the fuel pump? Send a close pic if so. Check whatever type of bowl for any derbies etc.. Check the fuel pump?s diaphragm for stretching or tears. I doubt you will see any damage if you are running good above idle. Add a clear inline fuel filter just before the carb.

2 I?ll suggest running a fresh tank of treated fuel before getting too involved with the engine unless you have the skills and want to do some PM observations. You might post if Stabil is strong enough for cleaning a carb or should you use B-12 or etc..

3. Hopefully, one of the Experienced Pros Will Jump In and verify my suggestions or make others. I have done limited needed work only on my 1970 35hp Chrysler only since 1984. That has included a fair amount of engine PM about every 4-5 yrs. The Engine Is Tuff! I h/n changed points since 84 but I have cleaned them 2-3 times. I need to change my stretched fuel pump diaphragm just to see if any improvements are noticed. For my ?few fishing trips Only?, I have been more than satisfied with limited needs.
 

Red9654

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Re: 1969 Chrysler doesnt idle right

I will look into that later cuz i now have a bigger problem with the motor
 

wickware

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Re: 1969 Chrysler doesnt idle right

Post the new problems and Pics. They may not be that bad related to past experience. We Are Here To Help! I hope to fish tomorrow and will get back, "after cleaning my fish". LOL
 

Red9654

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Re: 1969 Chrysler doesnt idle right

the problem i stated last post was the motor brackets breakin off and the motor almost fallen to the bottom of lake erie but i can get that fixed this weekend. but today i took off the lower unit and found this green foam stuff. what is it? should it b there? and if not how do i get rid of it?IMAG0350.jpgIMAG0351.jpg
 

wickware

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Re: 1969 Chrysler doesnt idle right

The green foam is above my experience, possibly not others. I have two ideas:

1. Past history, was the boat stored and this was an additive added for Etc?
2. Additives added to the fuel and oil residue can find their way into the leg.
3. What was the Engine mount issue, do you have that pic?
4. My boat?s days are numbered, I d/n have the energy/time for the needed work or another boat.
 

Red9654

Petty Officer 2nd Class
Joined
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Messages
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Re: 1969 Chrysler doesnt idle right

I dont know anythin about its past history so im not sure if that is an additive or not. Should i clean all of that out? And me and my mom believe we hit somethin under the water yesturday but we will b able to fix it this weekend and make it good as new. Well as new as it can b
 

wickware

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Messages
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Re: 1969 Chrysler doesnt idle right

the problem i stated last post was the motor brackets breakin off and the motor almost fallen to the bottom of lake erie but i can get that fixed this weekend. but today i took off the lower unit and found this green foam stuff. what is it? should it b there? and if not how do i get rid of it?View attachment 194919View attachment 194920

Red9654,

Try posting a new thread with a new title. Showing the image and I feel you will get some responses.

My suggested title: ?What is the green foam in my 1969 45 hp Chrysler? lower unit?

Please show what failed on the engine mount causing you to almost drop your engine. I have been lucky to not receive any stump damage since we can not see stumps below water where we fished the last two weeks. I travel as slow as I can w/o leaving the motor in gear except to start moving.
 
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