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Mercury outboard repair help
Posted on 7/25/15 at 3:45 pm
Posted on 7/25/15 at 3:45 pm
Does anyone have advice on a good Mercury outboard repair shop in the Slidell area? My 1988 175 mercury will run hard for about five minutes then sputter like it's not getting fuel. It will Idle and put around just fine. The ball is hard and I can't figure out If it's fuel or electrical.
Posted on 7/25/15 at 4:11 pm to cberni1
Have you changed furl filter?
Posted on 7/25/15 at 4:16 pm to Spankum
Not this trip but the previous trip, yes.
Posted on 7/27/15 at 7:51 am to cberni1
Sounds like your High Flow jet is clogged. Have you tried a sea foam treatment before bringing to the shop. That stuff works magic on older engines!
Had opposite problem with my yamaha in it wouldn't idle, after seafoam treatment thought I had a new motor!
Had opposite problem with my yamaha in it wouldn't idle, after seafoam treatment thought I had a new motor!
Posted on 7/27/15 at 8:17 am to Tbooux
I have not tried sea foam. The motor was brought to a shop once before and the CDI boxes were changed but that still doesn't seem to be fixing it. That's why I still have a feeling it something deeper than fuel and the reason its not going back to that shop. I was hoping there was a knowledgeable Mercury repair shop who can diagnose this properly.
Posted on 7/27/15 at 8:49 am to cberni1
Disassemble carburetor.
Place in giant tube of Pine Sol. Wait a couple of days.
Rinse with hot water. Reassemble. Carb will be like new.
Place in giant tube of Pine Sol. Wait a couple of days.
Rinse with hot water. Reassemble. Carb will be like new.
Posted on 7/27/15 at 3:24 pm to DeepSouthSportsman
quote:Next step, I promise!
uy Yamaha
Posted on 7/27/15 at 3:31 pm to cberni1
Posted on 7/27/15 at 7:17 pm to 007mag
Sounds like a carb problem or it's timing advancing is way off. Don't keep trying to run it in that condition. You can and will burn a piston. There is a guy I use in breaux bridge, right off I10. Freddy Breaux. He is outstanding and way cheaper then shops. He does all his work at his house. He has all the contracts for all the oil companys that run boats in the basin.
It's hard to find someone that can work on older outboards. All these shops do now is plug in to see code problems and then start throwing parts at the motor till they find the right part.
It's hard to find someone that can work on older outboards. All these shops do now is plug in to see code problems and then start throwing parts at the motor till they find the right part.
Posted on 7/27/15 at 8:50 pm to cberni1
Boat City or the Big Wheel Boats in Hammond
Posted on 7/27/15 at 8:53 pm to cberni1
The stator, trigger, switch boxes, ignition coils, and spark plugs are the only parts to an old school ignition system. There are several threads on thehulltruth.com and YouTube videos that walk you through the diagnostics of these systems. If you have a decent multimeter and are somewhat mechanically inclined, then this should be something you can handle yourself.
If not, Slidell Marine is who we would recommend in your area for Mercury service.
If not, Slidell Marine is who we would recommend in your area for Mercury service.
Posted on 7/27/15 at 9:00 pm to cberni1
You running it on muffs or under actual loaded? Is the tank properly vented?
Posted on 7/27/15 at 9:10 pm to cberni1
Have you tried changing your fuel bulb, does it act like its losing prime?
Posted on 7/28/15 at 9:59 am to fishfighter
quote:Thanks, I will look into this.
Freddy Breaux.
quote:My largest aggravation to this point. Too much electronics out there today but the best part of a carb motor is its simplicity.
It's hard to find someone that can work on older outboards
Posted on 7/28/15 at 10:06 am to davidwademarine
quote:My dad is helping me with this and has been a automotive mechanic for most of his life so we are investigating things like the stator, coils, and boxes. We changed the plugs and CDI boxes already so trying to rule that out, but he thinks its still electrical.
The stator, trigger, switch boxes, ignition coils, and spark plugs are the only parts to an old school ignition system. There are several threads on thehulltruth.com and YouTube videos that walk you through the diagnostics of these systems. If you have a decent multimeter and are somewhat mechanically inclined, then this should be something you can handle yourself.
I think its also worth noting that the inside of fuel line before and after the fuel filter by the motor was severely corroded, so we changed that but I'm wondering if the fuel line from the tank to the nipple at the back of the boat coming out the hull is also bad.
I spoke with a friend who is very savvy with outboards and he tells me that most of the outboard mechanics he knows make most of their money off changing collapsed/corroded fuel lines from someone running ethanol based fuel (we never have but someone before us could have) and vent tubes being clogged with mud divers or other bee nest.
So i'm going to run the boat again on an external tank and check the easiest issues first. The motor just iddles too well and runs great at lower RPM's which is the confusing thing.
Posted on 7/28/15 at 10:08 am to White Bear
quote:This issue only occurs wide open under load in the water. Can't replicate on the muffs. The tank is properly vented but i haven't checked for blockage from bee hive or something else.
You running it on muffs or under actual loaded? Is the tank properly vented?
Posted on 7/28/15 at 10:11 am to HeadBusta4LSU
quote:Bulb has been changed. When we ran it wide open and it would begin sputtering, i felt the bulb and started pumping it to see if it wasn't getting enough fuel. When I pumped, it would come back then sputter again. A friend thinks this is prime evidence of a possible corroded or collapsing fuel line from the tank which is under the floor that I haven't been able to check yet.
Have you tried changing your fuel bulb, does it act like its losing prime?
Posted on 7/28/15 at 1:50 pm to cberni1
Not to be a buzz kill, and I know motors aren't cheap.. But that motor is almost 30 years old... Ever think about replacing it before putting tons of money into it...
Got a buddy who's constantly putting his '82 Merc 50 in the shop.... We keep telling him to replace it..
Got a buddy who's constantly putting his '82 Merc 50 in the shop.... We keep telling him to replace it..
This post was edited on 7/28/15 at 2:01 pm
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