fuel inlet nuts stuck

[140bb]

every time i try to get the fuel inlet nuts loose at the carb. they don't want to break loose. brass nut that leads into carb nut that houses the small fuel filter in the carb. the last time i tried , i ended up twisting the steel fuel line until it broke . any help would be apprieciated.
1982- 140 mercruiser

 

[Bondo]

Re: fuel inlet nuts stuck

Ayuh,...

Use 2 wrenches that fit Properly,...
Hold with the big wrench,+ turn the little wrench....
Tubing wrenches are a big plus...

It also doesn't hurt to put a dab of grease between the brass nut,+ the line when assembling...
And,...
Don't over-tighten them in the 1st place....

 

[Fishermark]

Re: fuel inlet nuts stuck

Ayuh,...
....
Tubing wrenches are a big plus...

The only change I would make to what Bondo said, (except for the Ayuh of course ), is that tubing or flare nut wrenches are mandatory. You just can't loosen a fitting like that with your typical open end wrench.

Of course if the one you are working on now is the one where you twisted the metal line off... then it is easier - you just use a big box end wrench and socket. Then, as mentioned, add a little lubrication when reinstalling.

 

[140bb]

Re: fuel inlet nuts stuck

thanks,
i will have to invest in the proper wrenches, a little greae between the tube and brass should help alot also.