Matt16

I've cross-threaded a brake line. I think my chances of finding an NPT tap (Toy brake lines are NPT right? EDIT: nope, no brakes appear to be NPT) are slim near where I live. My plan at the moment is to file the cross-threaded threads off and try and get it in straight next time.

Suggestions?

wyoming9

iTrader: (1)

Just what connection did you cross thread??

If it is a short nut you maybe able to swap to a long nut and get it to seal

Which gets me to thinking it would not be a bad idea to have a tap in that size

Matt16

Ok, here's what I learned- brakes fittings are not NPT, they're regular metric thread (don't know the thread pitch though). What I did was buy the last Japanese brake fitting from the parts store, and borrow a double flare brake line kit. I slipped the fitting over the hard line, and flared the end of the line. It worked out luckily.

bend

iTrader: (1)

Same thing just happened to me. My brake line fitting is a M10-1. It took me awhile but I found a dye to chase the threads with. It worked out for me.

scuba

Did you thread the fitting on the brake line or the fitting in the drum / caliper ?
If its on a rear drum I think toy makes the fittings back there (the one in the drum) so that that the line strips not the thing in the drum. Good luck with replacing whatever.

Matt16

Its a solid front axle, so its between the hardline that runs along the axle and the softline that joins with the caliper.

Matt16

Yeah, thought of that, but I didn't want to hunt around parts store and deal with justifiably clueless parts people in a search for a obscure tool. Its rare to be able to find anything metric in th parts store, let alone a tap and die for metric brake fittings.

wyoming9

iTrader: (1)

I am glad you were able to get it fixed

bend

iTrader: (1)

Yea I had to buy a 35 dollar tap and dye set at harbor freight to get the SOB. I'm returning it monday though. My other option was to buy a new hard line from advanced but it was about 9 inches longer than stock. That would have been a pain to bend and fit.

Matt16

I don't know if you can borrow a double flare kit, but its not too tough a job. you could chop off that 9" and reflare the line.

Also, its die, not dye, I keep thinking you're talking about a colouring pigment haha

bend

iTrader: (1)

Hah duly noted