Calling all Merc Mechanics
- Thread starter randlemanboater
- Start date
Skools Out
God
run it first without any see if it fix's the problem like MJ said. then replace if it runs good with none. that was the location you posted in those pics i had an old V4 140 that ran hot all the time with t-stats but ran fine without so you can guess it i took them out never had the first problem.
Skools Out
God
run it first without any see if it fix's the problem like MJ said. then replace if it runs good with none. that was the location you posted in those pics i had an old V4 140 that ran hot all the time with t-stats but ran fine without so you can guess it i took them out never had the first problem.
THEFERMANATOR
God
I do know that MERCURY set there overheat alarm at a very low temp. A friend had a 90 HP and 2 little pieces of grass on the pickup would set the hot horn off.
THEFERMANATOR
God
I do know that MERCURY set there overheat alarm at a very low temp. A friend had a 90 HP and 2 little pieces of grass on the pickup would set the hot horn off.
Kajun
Senior Member
yea that was me with the sand issue...still havent figured it out...i have changed thermostats,heat sensor switches...pulled and flushed heads/powerhead, new waterpump and impeller...still overheats.....i bought a laser thermometer and was able to figure out which cylinder was over heating.....i then pulled the thermostats out and it runs 30 degrees cooler on that cyl on the hose, i havent been able to run it in the water yet.
sure hope yours is easier to find than mine has been.
sure hope yours is easier to find than mine has been.
Kajun
Senior Member
yea that was me with the sand issue...still havent figured it out...i have changed thermostats,heat sensor switches...pulled and flushed heads/powerhead, new waterpump and impeller...still overheats.....i bought a laser thermometer and was able to figure out which cylinder was over heating.....i then pulled the thermostats out and it runs 30 degrees cooler on that cyl on the hose, i havent been able to run it in the water yet.
sure hope yours is easier to find than mine has been.
sure hope yours is easier to find than mine has been.
randlemanboater
God
Well, I when to church this morning and prayed for patience, then I stuffed myself at Golden Coral.
Then I removed the thermostats. I doubt that they were slowing down much water.
Buttoned her back up, started and ran for about 3.5 minutes before the alarm came on.
AAAAAHHHHHHHHHHH!!!!!!!
Kajun has turned me onto a Merc. Mechanic who helps people online (thanks dude), guess I'll see what he suggests next.
You can see that it pees good at idle.
I did stop in Walmart after lunch and pick up a couple items. Some 5200, some silicone sealant, and a new winch strap (the hook is tied on to the old one).
But instead of doing anything else to the boat today I did what any good southern dad does on Sunday afternoon, I gathered up the kids for some shootin practice.
Then I removed the thermostats. I doubt that they were slowing down much water.
Buttoned her back up, started and ran for about 3.5 minutes before the alarm came on.
AAAAAHHHHHHHHHHH!!!!!!!
Kajun has turned me onto a Merc. Mechanic who helps people online (thanks dude), guess I'll see what he suggests next.
You can see that it pees good at idle.
I did stop in Walmart after lunch and pick up a couple items. Some 5200, some silicone sealant, and a new winch strap (the hook is tied on to the old one).
But instead of doing anything else to the boat today I did what any good southern dad does on Sunday afternoon, I gathered up the kids for some shootin practice.
randlemanboater
God
Well, I when to church this morning and prayed for patience, then I stuffed myself at Golden Coral.
Then I removed the thermostats. I doubt that they were slowing down much water.
Buttoned her back up, started and ran for about 3.5 minutes before the alarm came on.
AAAAAHHHHHHHHHHH!!!!!!!
Kajun has turned me onto a Merc. Mechanic who helps people online (thanks dude), guess I'll see what he suggests next.
You can see that it pees good at idle.
I did stop in Walmart after lunch and pick up a couple items. Some 5200, some silicone sealant, and a new winch strap (the hook is tied on to the old one).
But instead of doing anything else to the boat today I did what any good southern dad does on Sunday afternoon, I gathered up the kids for some shootin practice.
Then I removed the thermostats. I doubt that they were slowing down much water.
Buttoned her back up, started and ran for about 3.5 minutes before the alarm came on.
AAAAAHHHHHHHHHHH!!!!!!!
Kajun has turned me onto a Merc. Mechanic who helps people online (thanks dude), guess I'll see what he suggests next.
You can see that it pees good at idle.
I did stop in Walmart after lunch and pick up a couple items. Some 5200, some silicone sealant, and a new winch strap (the hook is tied on to the old one).
But instead of doing anything else to the boat today I did what any good southern dad does on Sunday afternoon, I gathered up the kids for some shootin practice.
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