One thing after another...

[KB_85_V20]

1986 johnson 200 (if you check my other posts you can probably see why i want to back this thing throught the jerk off's house that sold it to me)

So i did a cold compression test a few weeks ago just because i bought a tester and was fooling around, and i got mostly 90's and an 80. Well the thing has been running hot so i changed out the vernatherms because they were toast and i was trying to keep it cheap. When we water tested it, it still got hot and was shooting steam out the tell tale and it died. So I pulled out the thermoatat all together to get any water flow i could and waited 20 minutes for it to cool down(as if I had a coice!) and brought it back to the ramp. I decided to check out the impeller, and the silver cup had sheared the alignment peg and spun enough to cover half the hole.
Well i replaced the impeller and the cup and when i fired it up, it was only running on one bank. It sputters and won't run less than 1200 or 1300rpm or it will stall. I did another compression check and this time got 85,80,75 on the port bank and 70,75,70 on the starboard (non firing) bank. Could i have warped the heads on the last water test and that is the reason its not firing on one bank? I havent tried switching the power pack yet because i had to re-pull the LU. Turns out the guy that put it back together (me) used the wrong woodruff key and it spun it out. I need to get this thing figured out because I haven't had any fun yet as a boat owner, just lots and lots of disappointment.

 

[crxess]

Re: One thing after another...

Don't get ahead of yourself.

First confirm whether it is firing the plugs or not. If the plugs are firing then it is possible but unlikely the head is warped. Your per side numbers are to consistent.
Make sure you didn't knock any connections loose.

Step back and take a break. Double check your work as you go. You will get there.

 

[KB_85_V20]

Re: One thing after another...

I got the impeller replaced with the right key and will put it on in the morning. hopefully it is just a loose wire because the wife has cut me off on spending money on the boat.

 

[jonesg]

Re: One thing after another...

REading back over previous threads, did you ever fix that disconnected heat alarm system?

 

[KB_85_V20]

Re: One thing after another...

REading back over previous threads, did you ever fix that disconnected heat alarm system?

i hooked the wires back up because they were just cut about 3 inches from the switch, but i think there is something else thats disconnected or broke because it hasn't made any sounds even though its getting hot. the whole boat looks like a wiring nightmare so i need to strip it all and start from scratch. getting the thing running has been my priority of late. mostly im trying to fix it to sell it, its too much boat. I need a 15-17' CC w/ 60-90hp. Any body want to buy a MINT condition boat!!

 

[KB_85_V20]

Re: One thing after another...

So i got the LU back on and tried starting it and nothing. didnt even cough.. must be an ignition problem but its been misting all morning and maybe the packs got wet so ill try to work on it tomorrow.

 

[jonesg]

Re: One thing after another...

What sort of MINT are we talking here, peppermint or spearmint?

The alarm system is critical to keeping the engine in one peice, due to the complexity of the systems its like russian roulette unless the sensors all work as designed.

 

[KB_85_V20]

Re: One thing after another...

What sort of MINT are we talking here, peppermint or spearmint?

The alarm system is critical to keeping the engine in one peice, due to the complexity of the systems its like russian roulette unless the sensors all work as designed.

well i can throw in a bag of peppermints and maybe a spearmint christmas tree air freshener if the price is right!

I'll have to get into the manual and find a schematic for the temp warning, but thats just another thing on my to do list.

 

[KB_85_V20]

Re: One thing after another...

I went out today and was going to do some troubleshooting on the wires and step 1 was to disconnect the kill wires. I cranked it over, not thinking it would start and sure enough, it did. not only did it start but it ran pretty decent. on both banks. so, satisfied, i turned the key off and wouldn't you know it, it didnt stop. it left me a little confused for a second then realized the kill switches(i guess i didnt really think about what that meant...) weren't hooked up and thats probably why it wouldn't stop, so i ran back and hooked them up and voila! so i guess the whole ignition system just doesn't like moisture! so thats taken care of but still no water out the tell tale. i left it on long enough until i couldn't hold my hand on the head any longer and no water came out. Any suggestions?

 

[wilde1j]

Re: One thing after another...

Let's see, you could have missed the water pump outlet with the tube when re-assembling the LU, or you could have gotten the grommet in the pump outlet folded over (I usually put some grease on the inside of the grommet to allow the tube easy entry), the pump body to wear plate seal might not be good, blockage internally in the cooling system, etc. A lot a possibilities here and I may have missed a few.

 

[nymack66]

Re: One thing after another...

Did you install the impeller correctly ?

 

[KB_85_V20]

Re: One thing after another...

Yes everything is installed correctly, and i even put the muffs on it and turned it with a ratchet and water comes out of the top of the tube. when i had it all taken off i put the water hose up to where the thermostat goes and water came out of the bottom. i don't think there is any blockages because it would spit water out before i changed the impeller. the reason, i think, it was overheating is because the silver cup had slid and covered 2/3 of the outlet hole of the housing. i work nights so i will put it back on in the morning and check it out. the rubber grommets getting rolled is a pretty good posibility.

Thanks to all.

 

[KB_85_V20]

Re: One thing after another...

Update: put the LU back on. Went to start it to op-check it and nothing. same as before. This time I checked spark on all cyl's and the #2 would get one, some times 2 sparks at the beginning and thats it. All others were dead in the water. Is it possible for all 6 coils to go bad at the same time? or is this most likely a power pack problem? i followed some of the basic troubleshooting steps and ruled out the kill switches.

 

[jonesg]

Re: One thing after another...

6 coils all wearing out at the same instant in time, fat chance.

Look for the common denominators,
power pack is the most common but not exclusive source.
Timer base is another source of problems, often they are replaced in a pair.

A peak reading meter off ebay would show you which component is failing.
$62 is a very good price for these specialized meters. You can't just use any V meter.
http://cgi.ebay.com/ebaymotors/Mari...Z230353556405QQptZMotorsQ5fAutomotiveQ5fTools

 

[KB_85_V20]

Re: One thing after another...

In order to get a volt reading does the motor have to be running or do i do those checks while cranking the motor? I also checked the stator resistance and the book said it should be about 1000 ohms but I got something like 862 ohms. That seems pretty close to me so I can rule out the stator right? Keep in mind through all this that the last time the motor was running it got pretty hot. It was mostly idling time but it did get hot none the less and I know that heat is pretty damaging. Thats why I'm wondering if maybe I fried all the ignition parts at once, I just can't afford to start shot gunning parts. But I'll keep trucking with these tests.

 

[KB_85_V20]

Re: One thing after another...

new power packs are on order and will be here in a few days. hopefully those will fix it.

 

[KB_85_V20]

Re: One thing after another...

***UPDATE*** installed new power packs today and the same problem still exists. NO SPARK. I've checked all the connections and they are all tight and none of them seem corroded. Maybe the timer base is bad?

 

[Daviet]

Re: One thing after another...

It sounds like you have a gremlin somewhere. Do you have a factory manual for your engine? If not you might want to get one and start from the beginning and check out your complete electrical system.

 

[KB_85_V20]

Re: One thing after another...

I have a manual that i downloaded off the internet but I'm not sure what kind it is because it doesn't show the cover page. The thing was working 2 weeks ago and then it got hot and hasn't worked right since.

 

[Dhadley]

Re: One thing after another...

You've already pin pointed the problem. When you take the kill circuit out of the system the motor runs decent according to your earlier post. Therefore you already know the ignition system on the motor is fine. The problem lies in the wiring from the packs forward. Most likely the key switch is bad.