Chrysler 75hp 3cyl 2stroke problem :(

[pspryu101]

Hello fellow boaters! I am new to the forum and it is great to be here to learn as a newcomer in the boating world. Now off to my question. I just recently purchased a 74 glastron open bow in imacculate condition. I mean the boat itself is very clean and looks really nice but my problem is the outboard it came with. The guy said that the motor has been good to him until recently he has to spray starter fluid through the intake or carb cylinders to give it a boost and sure enough it would start. He showed me that it starts also so i was very confident that i can do it myself but unfortunately that wasnt the case. I took it out today in the water hoping that I can also get it to turn on but I was out there for 3 hours trying to turn on the thing and it just keeps cranking. When I push the key in the choke opens and when i crank it the starter would engage with the fly wheel and it would move it but in one rotation at a time, not constant. it seems like the starter is not giving enough kick to start the engine. So i replaced the old battery with a brand new one and still won't start. If i keep cranking it, it causes my starter to get soo hot and the + - cables start to smoke because the heat is melting away the plastic cover of the wires. Im not sure if its the starter thats gone bad... Its just frustrating how the previous owner got it to start right away and i couldnt... Please help on where to start on troubleshooting this motor and what suggestions i can do to fix the problem. Thanks guys!

here is a video of the engine problem i'm having. http://www.youtube.com/watch?v=cdkBdL6_NU4&feature=youtu.be

 

[jerryjerry05]

Re: Chrysler 75hp 3cyl 2stroke problem

First remove the starter and clean it.
Easy to take apart and clean.
Then a compression test.
Remove all plugs to do this.

ANY time you need starting fluid to help start an outboard there is something seriously WRONG!!!

You should have had a mechanic look at it and do a comp test.

The old, it ran GREAT for me is usually a big fib!!

 

[emoney]

Re: Chrysler 75hp 3cyl 2stroke problem

Plus, if it won't start after a few minutes, you can only make things worse by trying to crank on it for hours.:facepalm:

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

First remove the starter and clean it.
Easy to take apart and clean.
Then a compression test.
Remove all plugs to do this.

ANY time you need starting fluid to help start an outboard there is something seriously WRONG!!!

You should have had a mechanic look at it and do a comp test.

The old, it ran GREAT for me is usually a big fib!!

Here's what the starter looks like. How do I clean this and which areas should I focus on cleaning? Do i just use electric parts cleaner or a special cleaner for these things? From the looks of the starter, the strong burnt smell that I can smell and the chuck full of debris when i opened this thing up, i'm not sure if this thing is worth salvaging.. Although on another thread here http://forums.iboats.com/showthread.php?t=574532 eazzy said that ebay starters are pieces of junk and that it's not worth getting and better off rebuilding the starter. If i was to rebuild where do I start? what are the key components of the starter that needs replacement? What do you guys think? On a side note, just out curiosity, does an automotive starter for cars will work on these motor?

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

Any other suggestion guys? I mean should I just get a new starter? Are these motor reliable and worth saving?

 

[jerryjerry05]

Re: Chrysler 75hp 3cyl 2stroke problem

Automotive won't fit.
Yes the factory original is worth rebuilding.
Use an OEM rebuilding kit.Again factory is best.
Probably $15-16 Mercury dealer.
I use a 220grit sandpaper on the armature.
The base I take apart and use soap and water and a small wire brush.
The two screw holding it in are easy to remove.
Those brushes are pretty well shot.
Pull the armature out of the starter body and wash in soap and water,blow dry asap.
Then make sure the magnets inside the body are still glued in.
Use finger pressure only,a screw driver can loosen them and the starter is ruined.
If they are loose then buy a new starter.

 

[Frank Acampora]

Re: Chrysler 75hp 3cyl 2stroke problem

If your battery cables are hot and smoking, then there is a good chance that the armature has a short circuit. Replacement of the starter morot is the only sure cure.

While you are waiting, the engine can be rope started. In your case, if it is a distributor engine, it must have a fully charged battery because the ignition is NOT self energising.

Turn the key on, wind a rope around the flywheel, block the choke closed, brace your foot on the splashwell, and yank the rope.

For starting, the control handle must be in the fast idle/warm-up position as shown in one photo. With the handle upright, pull out the silver knob then advance the handle as far as it will go.This disables the shift. Once the engine starts, return the control handle to upright and push in the silver knob. Shift will now function correctly.

And change the plugs--Champion L20V or L76V. NGK BUHW

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

Automotive won't fit.
Yes the factory original is worth rebuilding.
Use an OEM rebuilding kit.Again factory is best.
Probably $15-16 Mercury dealer.
I use a 220grit sandpaper on the armature.
The base I take apart and use soap and water and a small wire brush.
The two screw holding it in are easy to remove.
Those brushes are pretty well shot.
Pull the armature out of the starter body and wash in soap and water,blow dry asap.
Then make sure the magnets inside the body are still glued in.
Use finger pressure only,a screw driver can loosen them and the starter is ruined.
If they are loose then buy a new starter.

Glad to know. Okay I will work on the cleaning ASAP. I know this might be a dumb question but what is the armature? Also if I was to buy a new starter (hopefully not). Where and what brand should I get for a decent price?

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

View attachment 165643View attachment 165644If your battery cables are hot and smoking, then there is a good chance that the armature has a short circuit. Replacement of the starter morot is the only sure cure.

While you are waiting, the engine can be rope started. In your case, if it is a distributor engine, it must have a fully charged battery because the ignition is NOT self energising.

Turn the key on, wind a rope around the flywheel, block the choke closed, brace your foot on the splashwell, and yank the rope.

For starting, the control handle must be in the fast idle/warm-up position as shown in one photo. With the handle upright, pull out the silver knob then advance the handle as far as it will go.This disables the shift. Once the engine starts, return the control handle to upright and push in the silver knob. Shift will now function correctly.

And change the plugs--Champion L20V or L76V. NGK BUHW

Wow I didn't know that that is even possible... Is there some kind of that rope that are made specifically for that purpose? What I mean is I know you can purchase replacments for pull start outboards but what I mean is ones that are made specifically to start non pull starts?

 

[jerryjerry05]

Re: Chrysler 75hp 3cyl 2stroke problem


This pic was from a supposedly GOOD starter.This is the armature.One of the commutators(hope that's the right terminology) was welded to a brush.
The one you buy to start your smaller outboard or lawnmower will work.
The armature is the thing sticking out of your starter in the first pic.
There is no damage there so it's probably good.
Get an OHM meter and test continuity from the 16 sections of the end to the sides of the armature.
After cleaning it.
A 220grit or finer will clean up the end.Even scotchbrite will work.

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

Thanks for you guys' help! I finally got her running again! although there one little thing. I took her out today in the delta and everything was good until i turned off the motor and when it was time to leave. It was having a hard time starting... It wasn't the same problem as when it was before. this time it would start but it will only stay on for a good 3 seconds and shut off and when it decides to stay on longer with gas lever down and neutral button out, once i push neutral button in and i bring back throttle to neutral it turns off? It seems like its not getting enough gas is what I came up with because when the engine decided to stay on i primed the gas bulb a few times to give it some gas and it stayed on fine. Also the gas tank cap has a small screw on cap to release pressure, does this has to be open while operating the engine? or it does not matter? I was thinking maybe the motor was not getting enough gas because of the pressure?

 

[jerryjerry05]

Re: Chrysler 75hp 3cyl 2stroke problem

Probably the fuel pump??

Take it apart and check the diaphram.

 

[emoney]

Re: Chrysler 75hp 3cyl 2stroke problem

That screw on the gas tank cap needs to be open as that's the vent. Is your bulb staying firm? I only ask because that in-line fuel connector in the video is an area that's prone for "leakage". How long did you let the motor run in "warm-up" before trying to get it down to idle speed? Like Jerry said about the fuel pump, might also be time to clean the carbs. There's still something amiss if the previous owner had to spray start-up fluid into the intake. That particular event wasn't starter related.

 

[pspryu101]

Re: Chrysler 75hp 3cyl 2stroke problem

Probably the fuel pump??

Take it apart and check the diaphram.

Hmm good idea. Where would the fuel pump be located at? Since we are talking about cleaning. This engine seems to be still in good shape and I was wondering what else I can clean, replace little things such as gaskets, cables, tubes, etc. something like that but not truly rebuilding the whole engine and spending money on parts and parts but just using its own parts but cleaning and making it close to a rebuilt engine?

That screw on the gas tank cap needs to be open as that's the vent. Is your bulb staying firm? I only ask because that in-line fuel connector in the video is an area that's prone for "leakage". How long did you let the motor run in "warm-up" before trying to get it down to idle speed? Like Jerry said about the fuel pump, might also be time to clean the carbs. There's still something amiss if the previous owner had to spray start-up fluid into the intake. That particular event wasn't starter related.

I did tighten that clear filter area that shows the gas passing through because it was giving a bit of a leak i am not sure if that affected the flow of the gas as far as restraining the flow and not giving enough gas into the motor. I warmed it up for at least 10min and by that you meant having the throttle in about 1/4 of the way for warm up right before bringing it back to neutral? Although I opened the fuel filter and it seemed to be spotless.

 

[jerryjerry05]

Re: Chrysler 75hp 3cyl 2stroke problem

http://www.**********/parts/search/Merc/parts.html
This is what your pump looks like.
If that won't open go to boats . net look up Force 1988 85hp and look for fuel pump.
The other parts show the pump this is an expanded pic.

Look for the diaphram.