1984 VRO evinrude turning over slow HELP PLEASE

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

and one more bit of info ( keep in mind head gaskets, deflectors in the head, and the water pump is all new) compression is 90,90,90 & 80.

And hopefully fitted correctly !!!!
This thread is getting closer to my response to your PM a few days ago now eh !!! Remember my "internal issue" comment ???

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

I have not seen any water on the on the spark plugs. This bombadier engie tuner, how does this stuff work? And can some describe what I should be looking for when I pull off the blocking plates to inspect the piston rings?
I appreciate all the help, seems like I'm getting somewhere just hopefully won't have to spend a ton more money for a rebuild or another motor.

 

[emdsapmgr]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

When you pull off a couple of those side covers, you will be able to see the pistons. Rotate the flywheel by hand till you can see the rings. Check for burned, black carbon on the piston skirt, just under and around the rings. You should be able to see the rings move just slightly in the piston ring grooves when you move the flywheel slightly. This is normal. If the rings don't move, they may be severly carboned up (stuck.) That's what is the problem. The can of Bombarier Engine tuner has the directions on how to use the product. Follow them and you should be successful. It's not a bad thingto repeat this one or more times if you keep getting carbon out of the prop.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

well fellas its not any of the pistons swelling. the fella i got this thing from wasnt lying when he said the power head was new. they look perfect, no carbon, no blow by, no scarring, no blueing. the rings move freely as was described in a previous post. i dont get it! and it still after doubling the oil in the gas after it runs for a bit, draggs when starting. i didnt let it get hot enough to seize i would let it run for a few mins shut it down and restart it until it started to drag. took about 10 to 15 minutes of running. is thier any way that the stator could be swelling and making contact where it shouldnt be? has anyone ever heard of this happeneing? i mean the rotating assembly looks good from what i can see via the block off plates. plus no noise coming from the motor that would indicate a catastrophic motor failure in the makings.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

after the motor is warm, and begins to be hard to turn over, turning the flywheel by hand it seems to be binding up. After a Lil more effort it becomes free and I can turn it by hand. It stays consistant to where it is tight in the same place. This is what has me thinking it might be the stator making contact w the fly wheel. But at the same time I have never heard of that happening to anyone else. Any suggestions? Comments?

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Do you have an infra red thermometer ??? Check the temp of the motor as it runs.

 

[Big flop]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

It could be flywheel dragging on something or bad
internal bearing.
Sounds like something on top of piston hitting head?

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

cant find my infa red im going to look again. once it starts to drag after running i can still put my hand on the motor any where and not move it with out burning me. no piston damage, no noises, no knock, no pinging, no nothing. when it is running it sounds great. i dont know............how hard is it to pull the fly wheel and put it back on???? i have a puller its the putting back on im worried about.

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

cant find my infa red im going to look again. once it starts to drag after running i can still put my hand on the motor any where and not move it with out burning me. no piston damage, no noises, no knock, no pinging, no nothing. when it is running it sounds great. i dont know............how hard is it to pull the fly wheel and put it back on????

Not that hard with the right equipment. I think there is a good thread on it in the "Top Secret Files" at the top of page #1

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

well looks like during this week after work ill be pulling the power head off and looking at crank bearings. the fly wheel and stator were clean. thanks for the direction on getting it off, actually went quite smooth. wish it wasnt internal but it is. any suggestions or things i should look for?

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

well looks like during this week after work ill be pulling the power head off and looking at crank bearings. the fly wheel and stator were clean. thanks for the direction on getting it off, actually went quite smooth. wish it wasnt internal but it is. any suggestions or things i should look for?

No chance of taking it back to the guys that did the original work ?????

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

well i would but ive already paid this guy a good sum of money and know i have an internal bearing problem. if i bring it back i he is gonna want to charge me again to diagnose and the fix the problem. i trusted him once when he said its good to go aint gonna do it again. goes back to if you want something done right do it your self. i am mechanically able to do it built a few race cars and have raced dirt bikes and built/repaired everything myself. this is my first outboard the principals are the same just a lil different in some areas then what i am used to. im learing a tremendous amount with this and i appreciate everyones help. im going to keep posting as i go..

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Good Luck with everything. If you do it yourself you know it wil be done correctly.
Suggest getting an OEM manual though.
Looking forward to the progress posts.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

ah ha, found the culprit. its the upper crank bearing that has been failing. looks like who ever installed it may have not pressed it in all the way. their is play in between the inner and outer bearing inside of the upper crank housing. the bottom bearing is blue and feels ruff to turn while the upper bearing is nice and shiny and turns smooth. also, i can see were the lower bearing has been wearing on the crank. luckily the crank escaped unharmed. no blueing, scars, or notches. know for the fun part, finding a replacement without spending 300+. any suggestions? change the whole assembly or just the bearings?

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Glad you found it. Good job. Any chance of some photos of the issue ??? I would check the dimensions of everything as well as the condition before deciding what to replace.