will not start

[cmeadows02]

I have a 1983 mercruiser sea sprite with a 140 hp inline 4 was running yesterday then died . tryed starting back up and would try to start but never did. i checked fuel its there checked plugs. cleaned them tryed again nothing. then pulled coil wire and turned it over has spark but it was a lite orange does this mean its not putting out what it should be

 

[Don S]

Re: will not start

Probably has glazed over points from age. Give it a full tuneup and be it runs fine.

 

[fat fanny]

Re: will not start

It could be condensation on all the contacts in the distributor. I have that issue a couple times a season I keep a small can of Water Displacement formulation #40 on board (WD40). But if you have'nt already done so what The Don mentioned is probably the best remeady.

 

[JustJason]

Re: will not start

Water Displacement formulation #40

Hahaha...... Wow... Haven't heard anybody say that in a while.

I'm still trying to figure out what the PB mean in PB Blaster.

I think it means Pretty Ballsy

 

[chiefalen]

Re: will not start

Showing your age when you say water displacement # 40 hah.

I keep sand paper on the boat also, sand the points and look in the cap, rotor making good contact? Sand all the contacts a little adjust the points maybe they wore a little and see if that fixes it.

Make sure all the plugs are in good also.

One trick i do every year before i go on the water is start the boat with water going to the drive in pitch black darkness, and look at the motor running to see if there is a lightning storm. That will tell you if you need a new set of wires.

It's what i do and should not be done if your afraid of the dark, keep a good flashlight in your pocket. You don't want the buggeyman to get ya.

Good luck !

 

[fat fanny]

Re: will not start

I was justing waiting for the opportunity to use that wd phrase. I read in a mag last week but the trick does work after everything is cleaned from corrosion to eliminate condensation on electrical.I'm glad it got a laugh!. PB I think it means peanut butter because that what it turns into after about a day or two when exposed to air.

 

[Fishermark]

Re: will not start

It could be condensation on all the contacts in the distributor. I have that issue a couple times a season I keep a small can of Water Displacement formulation #40 on board (WD40).

No offense, but I can't imagine having to spray inside your distributor a couple of times a season to eliminate condensation. Have you tried a new cap, etc?

 

[cmeadows02]

Re: will not start

Well.. I did what don had said to do a tune up. did the tune up kit plus cap ,plugs ,wires and coil and the motor started right up still run a little rough tho may need a carb adjustment i guess any ideas on that

 

[Don S]

Re: will not start

Is the dwell of the points set to spec? Is the timing to spec? Once those are set, you can adjust the idle mixture.
You did do a compression test to make sure it was ok didn't you?

 

[cmeadows02]

Re: will not start

i didn't do a compression test will do tomorrow the points were done by someone who knows how to set them so i guess they are right he hooked it up to a meter.. one last thing when i run with muffs hooked up it starts to run hot the guy i bought it from said it had no thermostat. would that make it run hot or what. i will also check the timing tomorrow to see if that is it i adjusted the valves but still hear one make a noise is it better to run it and adjust them.

 

[Don S]

Re: will not start

Sounds like you have a lot more problems than you bargined for.
First thing to check in any marine overheat is the impeller and the raw water pump. In your boat, it's between the upper and lower unit of the outdrive.
With the thermostat out, it should run colder, not hotter. But there are a lot of things that could cause an overheat. Start with the impeller and we can go from there.

 

[cmeadows02]

Re: will not start

where would the raw pump be at in this pic sorry for the picture beening so big also i have the receipts for the new impeller installed on 6/5/08.. and was only ran three times

 

[JustJason]

Re: will not start

It would be not in that pic. Its in the middle of the outdrive hanging off the back of the boat.

 

[cmeadows02]

Re: will not start

duh i read what don wrote wrong ok i will replace that tomorrow to and go from there

 

[Don S]

Re: will not start

Was the engine ever run with out water to the outdrive? That's all it would take to destroy the impeller and pump.

 

[cmeadows02]

Re: will not start

not that i know i have allway ran water on it don't know about befor would think not

 

[cmeadows02]

Re: will not start

well i just went and took the srew out if the side where the water goes in and moved the cover and out fell rubber pieces what the mean is the impeller rubber???

 

[Don S]

Re: will not start

Head up to the Adults Only Sticky at the top of the forum. Download service manual #6 and start doing some reading. Section 3C covers the pump repair.

 

[cmeadows02]

Re: will not start

Well put new impeller in and low and behold it don't run hot any more and water comes out unlike befor the install just wanted to say thanks to all those who helped boat is up and running good for now.