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View Full Version : JB Weld could be the fix


ahhudgins
08-08-2013, 04:49 PM
I knew that I had at least a half tank of gas in the boat last weekend. Put the boat in the water and the fuel gauge showed empty. First thought was that someone siphoned my gas, so when I got to the dock I put in 2 five gallons cans of case. Still no reading on the gauge. Got the voltmeter out and started checking. 12V on one side of the gauge, 8V on the other side. Went to the sending unit on the tank and had the 8V on one terminal and ground on the other. Jumped across the two terminals and the gauge went to full. Pulled the sending unit out and found the little magnet that is supposed to be attached to the float was no longer attached. The magnet closes the reed switches as the float goes up and down. The magnet is rather loose in the float so it needs to be glued back in. According to the JB Weld website:

"When fully cured, J-B Weld is completely resistant to water, gasoline, and about every other petroleum product or automotive chemical. For wet-surface or submerged water or gasoline repairs, try our SteelStik or WaterWeld."

thatsmrmastercraft
08-08-2013, 04:54 PM
It's worth a try.

mikeg205
08-08-2013, 04:57 PM
go fer it.

Dynamite Spike
08-08-2013, 05:04 PM
I did the same repair 2 years ago. I just used "regular" 2-part epoxy....haven't had any trouble since then. JB Weld should work fine

ahhudgins
08-08-2013, 05:09 PM
I did the same repair 2 years ago. I just used "regular" 2-part epoxy....haven't had any trouble since then. JB Weld should work fine

I just like the redneck aspect of the JB Weld. :D

Dynamite Spike
08-08-2013, 06:58 PM
I just like the redneck aspect of the JB Weld. :D

I guess you could say it's the "duct tape" of adhesives 😜

ricford
08-08-2013, 07:36 PM
I found a gasoline resistant epoxy at the hardware store. Others have used super glue.

SSMoose
08-08-2013, 10:19 PM
I guess you could say it's the "duct tape" of adhesives 😜

To most Southerners duct tape is essential to life!:D

Andyg
08-08-2013, 10:42 PM
I used JB weld on the same gas gauge in my 1997 PS190 back in 2000 and the gas gauge still works. Just went past 13 yrs since I fixed it and still holding. My buddy owns the boat now and he hasn't had a problem with the gauge.

thatsmrmastercraft
08-09-2013, 12:08 AM
To most Southerners duct tape is essential to life!:D

Plenty of us North of the Mason-Dixon Line appreciate duct tape as well.

mikeg205
08-09-2013, 12:10 AM
and now you kin git duck-t tape in differnt kullers... ;)

cruiser
08-09-2013, 08:44 AM
I was a machine repairman for many years and used jb-weld for many different things when new parts were not available. I have drilled and tapped it, machined it and submerged it in solvents, oils and machine coolants. This stuff is great.

Dynamite Spike
08-09-2013, 09:39 AM
and now you kin git duck-t tape in differnt kullers... ;)

Yep, it shur is purdy!

beef
08-09-2013, 10:23 AM
I did the same repair using JB Weld about 6 years ago and it's still working fine!

JimN
08-09-2013, 11:37 AM
To most Southerners duct tape is essential to life!:D

I thought you guys called it '200 MPH tape'.

thatsmrmastercraft
08-09-2013, 11:45 AM
I thought you guys called it '200 MPH tape'.

That's the good stuff. The crap you buy at wally world is only good for 20 mph.

ahhudgins
08-09-2013, 01:55 PM
That's the good stuff. The crap you buy at wally world is only good for 20 mph.

That explains why my windshield is leaking.:D

thatsmrmastercraft
08-09-2013, 01:56 PM
That explains why my windshield is leaking.:D

I always have a couple rolls of duct tape going. A good roll for when you need it, and a cheap roll for when it doesn't matter.

Keep on Tryin'
08-09-2013, 02:27 PM
Would you be able post a pic of where this is located, and how to remove?
My fuel gauge stopped reading accurately as well. Would be nice if it were an easy fix.
Mine is a 2001 Maristar 210.
Thanks!

mikeg205
08-09-2013, 02:28 PM
fun with 200 mph duct tape.. ;)

http://www.youtube.com/watch?v=yQPfEhqL34Y

ahhudgins
08-09-2013, 05:57 PM
Would you be able post a pic of where this is located, and how to remove?
My fuel gauge stopped reading accurately as well. Would be nice if it were an easy fix.
Mine is a 2001 Maristar 210.
Thanks!

Don't know if yours is the same as mine, 95 Maristar 200VRS. All I had to do was pull up my center cushion of the rear seat and the sending unit was directly under it. Mine is a 2 wire sending unit. Boat is at the lake and I will install it this weekend. Now that it is repaired it reads 250 ohms empty, 33 ohms full. If yours is the same, just turn your key to the "ON" position and put a jumper wire across the 2 posts with the wires...your gauge should go to full.

I removed the 2 wires and the 5 screws holding the unit on the tank. I had to take the 2 small screws out of the round, plastic, bottom piece. The circuit board and float come out the bottom of the unit, but first I had to remove the 2 spanner-type nuts that were still on the posts. I just used needle nose pliers to remove them and I replaced the nuts with standard type nuts.

cruiser
08-09-2013, 06:23 PM
I even have a roll of black, when not only does it have to hold it needs to look good too!

Keep on Tryin'
08-12-2013, 03:51 PM
Thanks ahhudgins for the details and pic of what to look for.
I'll take a look at mine this weekend. I'm guessing it's in the same spot.
Thanks!!!

ahhudgins
08-13-2013, 02:01 PM
Put sending unit back in this weekend and it worked fine. We'll see how many years I get out of the JB Weld.