Need recommendation for a Fuel Resistant glue or caulking?

oioioi

oioioi

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Does anyone have any experience with any Fuel Resistant glue or caulking?

When I pulled the snowblower out of the shed a few months ago to prepare it for the winter, I discovered that the gas tank had a crack in it.
The crack is so small that I didn't see it and only realized when I smelled fuel in the garage. More than from some minor spill when filling it up.

The gas tank is made of black ABS and the crack is like a hair line fracuture but.
It's at about the half point mark of the tank, so currently I can only have about half a tank of gas in it.

Looked into getting a new tank but it costs more than I want to spend (close to $100).
I'm thinking that a bead of caulking on the outside should do the trick.

I googled it and whole bunch of different results came up.
I prefer to get something that is recommended by someone that has some experince with it.
 
Contact the Canadian distributor. A leaky fuel tank should be a warranty issue regardless of age. I had the fuel tank of my 17yr old Toro lawnmower replaced last year.$0.00.
 
It is a Craftsman sold by Sears. Purchased 7 or so years ago. :cry:
 
Purchased new but from the Outlet store in Rexdale.

I really don't think I could get this covered by Sears warranty.
Their warranties were good but now with Sears being no more, I think I'm SOL.
 
You can use epoxy to seal it BUT your success is entirely dependent on how well you can clean the area.
 
Interesting. May consider it.

I feel like he didn't clean that as well as he said to.
 
bitzz said:
You can use epoxy to seal it BUT your success is entirely dependent on how well you can clean the area.
Click to expand...

The machine is only about 7 years old with not too much use so it is fairly clean.
 
IIRC methyl methacrylate + some spare chunks of ABS make abs glue. The MM evaporates and leaves you with a strong repair. Not sure where to buy MM these days. Wear gloves, do it in a well-ventilated area. It quickly makes the world spin.
 
Thank you ^^^^^

I just looked up the part numbers.
It is a Craftsman Branded snowblower but with a Briggs & Stratton engine.

The parts number I need is 799863.
Price online hovers around $80-$100 CAN.
Amazon Warehouse has a "used with cosmetic damage" for around $40.

I will try what @Wingboy suggested.
I will contact B&S customer support line and see if they can cover it first, if not I may try the soldering iron method to start with.
Seeing that they tank is clean on the outside, it should bond well.
If that fails than I will try other methods.
 
GreyGhost said:
IIRC methyl methacrylate + some spare chunks of ABS make abs glue. The MM evaporates and leaves you with a strong repair. Not sure where to buy MM these days. Wear gloves, do it in a well-ventilated area. It quickly makes the world spin.
Click to expand...
Acetone works fine too.
  1. In a small glass jar add about an ounce of Acetone and some acrap ABS. It can be a lego block, or clean scrap ABS drain pipe. Let it sit overnight. In the morning you should have a nice slurry. Mix you're looking for the consistency of peanut If it's too runny, leave the cap off for 15 minutes, stir again. Repeat until you get the PB consistency.
  2. Thoroughly clean the crack area with acetone.
  3. Drill a 18" hole at each end of the crack. This will stop the crack from running.
  4. Using a small paint brush, paint acetone into the crack area about 1/4" wide. Do this until the surface gets tacky.
  5. Spread the ABS slurry into the crack (if you can slightly spread the crack with a knife blade, even better) , overlap on the outside by 1/2" each side.
 
oioioi said:
Thank you ^^^^^

I just looked up the part numbers.
It is a Craftsman Branded snowblower but with a Briggs & Stratton engine.

The parts number I need is 799863.
Price online hovers around $80-$100 CAN.
Amazon Warehouse has a "used with cosmetic damage" for around $40.

I will try what @Wingboy suggested.
I will contact B&S customer support line and see if they can cover it first, if not I may try the soldering iron method to start with.
Seeing that they tank is clean on the outside, it should bond well.
If that fails than I will try other methods.
Click to expand...
Buy the new one and save a lot of headaches?

Sent from my moto g(7) plus using Tapatalk
 
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Every city has at least 1 guy on kijiji that does small engine repairs. Most of them have a boneyard. The tank you need should be available.
Or.
Similar to the soldering gun method.
I use a torch to heat a (modified) butter knife. Same method....clean or sand the area, and have at it with the hot knife.
Seldom is there a need to add 'foreign' plastic/abs.
 
You can fix a small crack with an electric solder tool or "plastic welder', however if you had a plastic welder you wouldn't be here.
Make sure ALL the fuel is out of the tank and its been well vented. You have a 50/50 shot it wont weep.

better choice is epoxy, lepage or anybodys toothpaste 2 part works, sand the area with 150/180 grit so the epoxy has something to mechanically bite into, clean with vinegar or rubbing alcohol, use some thin fiberglass cloth if you have it or window screen works and trowel the expoxy over the crack. let dry 24hrs, even the 5 minute stuff.

none of the silicones or RTV caulks will work long term, they dont take continal wetting.
 
JB plastic weld
 
Scuba Steve said:
Buy the new one and save a lot of headaches?

Sent from my moto g(7) plus using Tapatalk
Click to expand...

No a terrible idea.
But I am of the mentallity that if I can fix it, why not. Call me old school or what ever, maybe its personal satisfaction.

This does not mean that I don't buy new parts to repair things.
Of course if I cannot repair or reproduce the parts than I get a replacement.

I just didnt think that a ABS moulded tank would cost around $100.
The snowblower cost me $699. Yes, replaceemnt parts are never as cheap as you think they would be, althrough I have been positivly surprised at times.
 
oioioi said:
No a terrible idea.
But I am of the mentallity that if I can fix it, why not. Call me old school or what ever, maybe its personal satisfaction.

This does not mean that I don't buy new parts to repair things.
Of course if I cannot repair or reproduce the parts than I get a replacement.

I just didnt think that a ABS moulded tank would cost around $100.
The snowblower cost me $699. Yes, replaceemnt parts are never as cheap as you think they would be, althrough I have been positivly surprised at times.
Click to expand...

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Maybe make a universal tank work.

Sent from my moto g(7) plus using Tapatalk
 
I like the patch idea
need to determine exactly the material
obtain a small amount of same - trim to fit
get the proper plastic welding cement
buff the area with dremel and wire wheel
clean thoroughly with brake clean to remove gas/oil/dirt
stick your patch on
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