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fixing moulded plastic fuel tank

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Dale Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 11 Sep 2009 Location: Ontario Points: 372	Post Options Post Reply Quote Dale Report Post Thanks(0) Quote Reply Topic: fixing moulded plastic fuel tank Posted: 29 Nov 2009 at 8:01pm
	Its a jacobsen-so its mostly orange. Fuel tank (diesel) is a moulded plastic of some sort. Has three moulded-in female threaded inserts to take instrument panel. Of course, smart engineering has guaranteed bolt to seize into the inserts. New tank is an arm and a leg. Dug them out (tank is still not pierced)-any ideas of the type of glue (or other technique) to basically refit new inserts in the gouged out holes. Any help or ideas appreciated.

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Coke-in-MN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Afton MN Points: 41217	Post Options Post Reply Quote Coke-in-MN Report Post Thanks(0) Quote Reply Posted: 29 Nov 2009 at 10:07pm
	Many of the tanks are polypropylene material and there is only one glue out there but it will only join poly to poly and then I would not trust it to much . The only other thing is a weld with poly rod and air torch to direct the heat to base metal and rod to fill in holes , then trying to weld inside a hole is another problem. This is all if it is poly, which I think it is. I did a lot of welding on both poly and PVC and it makes a surprisingly strong weld if done right.
	Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful."

Rawleigh Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 14 Sep 2009 Location: White Stone, VA Points: 421	Post Options Post Reply Quote Rawleigh Report Post Thanks(0) Quote Reply Posted: 09 Dec 2009 at 10:27am
	How about a helicoil or threaded insert with the locking fingers you drive down after screwing them in. Mcmaster Carr has them.

ac crazy Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 19 Oct 2009 Points: 245	Post Options Post Reply Quote ac crazy Report Post Thanks(0) Quote Reply Posted: 09 Dec 2009 at 10:58pm
	i my self would take it to your local body shop and have epoxy put in it it is strong enough to hold entire body panels on when set it will hold your inserts....our shop guys use it a lot on bumpers and panels...we tested it with two steel plates and two chains pulling on the and you would not believe how much force it takes to separate it... 3m makes it....just fyi
	If i can't fix it i won't.

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