Not been started in over 30 years...

[Jho928]

Re: Not been started in over 30 years...

QUESTION FOR LARK2004.Hi is that your project motor?If so what year 2ring pistons did you use in her?Pins?Rod Etc??? Thanks Jim.Sorry this is off topic.

 

[lark2004]

Re: Not been started in over 30 years...

Yes, Thats one of my project motors (it was the first, but I've done a few in the meantime). I've finished just about everything with it, I just need to start her up, unfortunatly, I also now have to replace the impeller, as it has sat like that for nearly 12 months, waiting for me to get a gas tank.....<br /><br /><br />The donor motor was a 1975 . Same rods and pins. I also stole the inlet covers from the later motor.

 

[josh6780]

Re: Not been started in over 30 years...

Well, I opened it up today to change the impeller and ther was absolutly nothing wrong with it. I changed it anyway. I sure hope I did not screw up any kinda of alignment. Could someone explane to me how that works and how I will know if I did? Oh and I put more oil in the lower unit. So now things should be ready to go.<br /><br />Now I have to get this other one working (the one that has not been started in 30 years) Someone said something about rubber getting in there from it being so old. Could someone explane this to me? I thought the only rubber thing was the impeller in this engine.

 

[josh6780]

Re: Not been started in over 30 years...

ok , I have a problem. I cannot get my engine to tilt either way up or down. The lever is on release. So what Am I doing wrong here. Very frustrated...

 

[josh6780]

Re: Not been started in over 30 years...

ok, My 25 horse is weighing my boat to a little much I think. I don't want to sink when the waves come so I guess I better start working on the 18. (the one that has been outside for 30 years) I am going to do a compresion check first. what is the compression supposed to be? And if that goes well. how do I clean out the carb?

 

[josh6780]

Re: Not been started in over 30 years...

Well I over heated my engine today. it was sizzling hot. I was only getting a mist of water coming out of the exhaust, Brand new impeller, and took the thermostat out. So I called the man. He acted like since it was a 64 year model, those didn't spray as much. So I didn't worry about it. Well, should have went with my gut. So I brought it home and did a compression test on it. The bottom cylinder is 90 and the top one is 60. What should I do next? What is the compression suppose to be for a 18hp 64 year model?

I don't understand why im not getting any water to the head. I know its getting up there cause I can see it seeping through where the thermostat goes. Everything is correct as far has the lower unit goes.

 

[eavega]

Re: Not been started in over 30 years...

The bottom cylinder is 90 and the top one is 60. What should I do next? What is the compression suppose to be for a 18hp 64 year model?

Compression should be within 10% of each other. Since compression testers can vary, the measurement is not as important as the difference between the cylinders. I've had motors that measured 60# with my compression tester, and it still ran just fine.

I don't understand why im not getting any water to the head. I know its getting up there cause I can see it seeping through where the thermostat goes.

Have you checked the thermostat itself for proper function? If it doesn't open, then the water jacket gets no circulation. Put your t-stat in a pot of water, and heat the water slowly, it should pop open at about 143 degrees. If it doesn't, then get a new one in there. Just for a test, you could try to run the motor without a t-stat installed. that will work to make sure the motor is cooling. If that works, then replace the t-stat and you are good.

-E

 

[josh6780]

Re: Not been started in over 30 years...

Thats what I was saying. I am already running the engine without a thermostat in there. I took it out.

 

[josh6780]

Re: Not been started in over 30 years...

top

 

[josh6780]

Re: Not been started in over 30 years...

does know one have any other suggestions as to what my problem would be? I am completely lost.

 

[crb478]

Re: Not been started in over 30 years...

If your motor got that hot when it overheated it is time to pull the heads and see what kind of damage has been done. If you are very lucky an new head gasket will bring the compression up. You also need to figure out why it overheated in the first place. Make sure that your new pump is acutally pumping and make sure that your water passages are not blocked. Put the thermastat back in, its there for a reason. When you get the head pulled look for damage to the pistons or cylinders. What you find will let you know what direction you need to go in to fix it.

 

[josh6780]

Re: Not been started in over 30 years...

yeah i understand all that my question is what is the proper way to make sure my cooling system is working correctly. i have done everything i know to do. how can i flush it to make sure nothing is cloged? do i need to replace head gaskets? i have the impeller in the housing clockwise. again all i am getting is a really fine spray. is water suppose to come out other places than the pee spray? i have a smaller engine and water also comes out the bottom of the head and a few other holes. its also an evinrude. i also have a 25 horse that has water coming out the two small back holes behind the pee spout as well. its a 64 18hp evinrude.

 

[josh6780]

Re: Not been started in over 30 years...

top

 

[Whoopbass]

Re: Not been started in over 30 years...

Drop the lower unit and stick a hose with a jet nozzle in the water pick up tube and blow it out. It doesn't matter how the impeller fins are lined up since they right themselves on the first revolution. Make sure you get the water pickup tube to line up and go back in the hole in the housing.

The head is where the sparks plug screw into and pulling it is simple. The hardest part is scraping the old gasket off.

When you get everything back together run it in a barrel and hold your hand on the head. If it gets to hot to touch for a couple seconds and the temp is still climbing shut it down.