1984 VRO evinrude turning over slow HELP PLEASE

[bystlouisbourgeois]

I have just gotten this thing out of the shop with new head gaskets, defectors, water pump, readjusted carbs, and fresh gear oil. It started fairly easily and idelled great and only ran on the top end choked out. as i backed the throttle off i forgot to release the choke, flooded and killed the motor. upon restart it would bearly turn over, so got towed in went home swapped batteries with a brand new fully charged one, cleaned all connections, even swapped the soleniod and starter off of another known to be functioning motor and still the same lazy barely turn over the motor start. I pulled the plugs and spun the motor, witch it spun fine with out the load on it, put the pugs back in and it spun better for a moment and the went back to barely turning over. I havent a clue and already have a good money invested, any help would greatly be appreciated.

Robert

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Welcome to iboats.
Could be a bad cable. Try a pair of good jumper cables on it and see if there is a difference.
Sounds like you have a fuel or air intrusion issue if you have to choke it to get it to perform at top end. need to solve that one immediately as well.
Good luck and post any questions you have.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

ok, still on the starting issue, i used jumper cables from the bat directly to the starter, still dragging (with a good charged 100% bat). i jumped it to the soleniod still same thing, i hooked the cables to my truck with it running as well as the bat was hooked to the boat motor and it spun up ok twice and then back to dragging. im at a loss, i tried to emilinate witch cable could be potentially failing with using the jumper cables in its place every situtation yeilded the same results. - the jumper cables were brand new just bought them at advanced 6 gauge set - i slow charged the brand new bat over night (2amp trickle).

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

When you are talking about getting it out of the shop, are you telling us that you have just paid to have this motor repaired ????

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Yes I just got it out of the repair shop. They changed the defkectors and the head gaskets on both sides of the motor. Also changed the water pump the gear oil in the foot and adjusted the carberator linkages. Compression is 90 psi in each cylinder plus or minus one or two psi. I can't see where anything could be internal beings I can spend the motor over by hand and when it is running their is no knock or noise and it revs fine and sounds great. Didn't have starting issues until after it went to the shop.

 

[boobie]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

If you just paid a shop to repair this mtr I'd take it back to them. Is it an authorized dlr or some fly by night or worse yet a shade tree type? Did they give it a good water test when they completed their work ?? I've been in the marine business for 45 yrs and it just pisses me off when I hear of probs like yours.

 

[emdsapmgr]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Possible it's the starter. The brushes in them do go bad with age. They may not be making good contact with the commutator on the armature. Bombardier sells replacement brush kits. If you pull it down, clean all the carbon out and relube the bushings before reassembly.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

im sure its not the starter, my paw in law has a 90 rude same starter that cranks his just fine, took his starter and soleniod off of his and put on mine and still the same problem.

today i noticed the main plug (red plug) looked backed out a lil bit so i plugged it all the way in and it spun over fine cranked up ran good shut it off cranked it again and it was fine shut it down a third time hit the key and back to the same thing dragging.

 

[kenmyfam]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Any chance of a video with sound showing the issue ??

 

[DJ]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

1. Un hook the battery.

2. Remove the negative (black) battery cable from the engine block.

3. Clean thoroughly.

4. Re-install

You probably cooked the Rectifier too. A simple parts swap. Parts here on iboats.

 

[emdsapmgr]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Is the spark advance rod still connected between the timer base and the spark advance lever? If that arm gets disconnected and the timer base advances significantly, the engine start timing will be off. It is very hard to crank over under that condition.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

ok changed both positive and negative bat cables, spun over fine cranked and ran. shut the motor down and fired it back up a few times everything still ok, let it sit and idle for a while the motor slowed down and shut off, upon trying to restart it it was dragging again. i grabbed the fly wheel and it felt like the motor had seized but with a lil more effort it began to spin easier. tried to restarted it, spun over and popped off (didnt have water one so imediatly shut the key off). turned the water on and tried it again and dragging still. put the cover back on and walked away. the motor sounded great revved fine and all. is it seizing? is thier anything else that cause what i am expierincing?

 

[Will Bark]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Are you sure that VRO is pumping enough oil into engine? Sounds like it may be trying to seize as it warms up.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

alright to add to the dilema, its been a lil while since i posted the last post about what was going on about an hour or so, was curious so i hit the key it spun over and tried to crank, didnt have it choked and didnt want it to run in fear of tearing something up worse then it is...........any i deals guys?

 

[emdsapmgr]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

This may seem like an odd question: Does the starter only drag after the engine has been running (has warmed up to normal temp?) Any chance the engine is overheating internally and approaching a complete lockup? One cylinder can overheat internally and not set off a hot horn. That cylinder can get so hot, the piston will swell and can eventually lock up the engine. Once cooled, the engine will seem to turn over fine. Don't ask me how I know this...

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

yeah basically that is what is going on, i had some problems with turning over period warm or cold. seems that the new bat cables have remedied that problem. know its after the motor is warm. I have heard these motors will run hot running on the hose in the yard, is that true? And what would cause one cylinder to get hot and not the rest?

 

[bystlouisbourgeois]

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.

 

[bystlouisbourgeois]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

I missed one of yalls posts. the VRO has been eliminated and went with the early style stand alone vacuum driven fuel pump. fuel is mixed 50:1 with lucas 2 cycle oil and to answer the question about the timing arm it is all in place and functioning properly.

 

[Big flop]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

When you had the spark plugs did you notice
any water on them? Does this only happen in the water
or with flusher hooked up?
Was your compression test from after this started?
If the repairs were after a bad overheat it could have
a warped head or blown exhaust gasket dumping water in motor

 

[emdsapmgr]

Re: 1984 VRO evinrude turning over slow HELP PLEASE

Pull a couple of the bypass covers off. Inspect the sides of the pistons, esp around the ringsets. Not unusual to see carbon buildup around the rings with today's fuels esp on the crossflow. Too much carbon accumulation can prevent the cooling fuel/oil mixture from getting to the rings to lube them and keep them cool. When this happens, the top-sides of the pistons can expand from the heat. As the piston grows from the heat, the clearances reduce, causing more friction. The pistons can actually stick in the cylinder. After cool-down, it will restart and appear to run normally. You will never get an overheat warning with this scenario. The solution is to run a couple of cans of Bombarier Engine Tuner cans through the powerhead. If the engine gets hot enough to actually stick the piston, it is very possible that some of the port bridges will crack -then toss the block. A symptom of an engine with coked rings is hard starting.