Aerospace Cycling

All answers for Motorcycle



Quick Answer: How To Seal Motorcycle Brake Fitings

How do you seal brake line fittings?

How to Seal Flare Fitting Connections Unscrew the brake line from the fitting. Clamp the appropriate-sized collet around the line. Connect it to the Surseat lapping tool. Spray some lubricant to the lapping head before using it. Rotate the lapping head back and forth about 6-10 times. Clean and inspect the flare.

Can you use Teflon tape on brake fittings?

You cannot safely, nor should you attempt to use Teflon tape on brake lines. A brake system should not rely on anything to stop a leak. The system relies on pushing a solvent under high pressure in a closed system for safe operation, and Teflon tape will threaten the integrity of that system.

Do brake line fittings need sealant?

A brake system needs no lubricants or sealers if assembled correctly. If you find a need for any of those products, you have a bad flare, bad fittings, or the fitting is still too loose. If you do want to lube the fittings, use only clean brake fluid.

What sealant is brake fluid resistant?

Gas and oil resistant leak sealer Like other adhesives, Seal-All can be used on metals, glass, wood and leather, but it is the only household product I have ever used that will withstand constant exposure to gasoline and/or brake fluid (DOT3 and DOT4).

Can you over tighten brake line fittings?

Do not distort the brake line by over-tightening it in the cutter. File the ends to ensure it’s square and remove burrs from the inside and outside edges.

Do you use thread sealant on flare fittings?

Do not use Teflon ® tape or pipe sealant on any flare ends because you will not obtain a leak-free seal. Keep flare end of fitting free of grease, oil and thread sealant. Use a wrench only on the hex surfaces of the fittings. tighten more if a leak is detected.

Can you use thread sealer on brake fittings?

It’s best to stay away from Teflon tape on any brake/fuel system. Just use any good pipe thread sealant (paste) with Teflon or PTFE, and only on pipe fittings.

What dissolves Teflon tape?

To get rid of old Teflon tape so you can reconnect pipes and use them again, you’ll need a petroleum-based solvent to dissolve the material. Gasoline works quickly and efficiently when proper safety precautions are followed. Pour enough gasoline in a metal pan outdoors to submerge the parts wrapped in Teflon tape.

Is Teflon tape brake fluid resistant?

What they said. Brake fluid dissolves teflon tape. Sealing the thread won’t help because that is not where the seal is. It is the flare.

Can you use JB Weld on brake line?

Sorry, but the ONLY safe thing to do is replace the brake line. JB weld is great stuff, but not on the most important part of controlling your car. Don’t even use a compression fitting on your brake system.

Do you use Loctite on brake lines?

You never use any type of sealant on brake lines, also the only lubricant you should use during assembly of the brake threads is brake fluid itself. If the flare/cone seal of the brake fittings doesn’t provide a seal then the parts must be changed, there are no safe ways to fix them.

What to use to seal hydraulic fittings?

Most hydraulic fittings seal mechanically (metal face to face) or with an O-ring, but Loctite 545 acts as an added sealant by filling in scratches and minor surface imperfections and prevent the fitting from loosening off from vibration.

Will brake fluid eat through silicone?

brake fluid will eat right through that stuff. plus, you do not want any of that residue getting in your brake system and contaminating your fluid! ditto.

Is Gorilla Glue resistant to brake fluid?

Chemical Resistance Gorilla Glue will not dissolve insolvents, however can be softened by brake fluid, gasoline and acetone.

Will seal all stick to rubber?

Use it on practically anything: wood, steel, aluminum and copper; most plastics and rubber; porcelain, glass and china; vinyl, fiberglass, canvas and leather; cardboard, paper and much more! Fast- drying and clear, SEAL-ALL® can withstand changes in climate, insulating and toughening with age.

What actually seals the connection in a flare connection?

Design: The 37° flare AN seal is used for sealing tubing to end connections. It requires the end of the tube to have a nut slipped onto it and then flared out using a special tool. To seal properly, the nut is threaded into a flare fitting which clamps the flared tube in between the nut and flare fitting.

Why do flare fittings leak?

Bad flare, burrs on the pipe, wrong size flare, can all cause a flare fitting to leak. The most common reason they leak is because of us overtightening them. I once had a tech tighten one to the point that it blow off during pressure testing.

What is better flare or compression fittings?

Generally speaking, compression outlets are used for water and compressed air lines, where slight leakage isn’t going to cause too much of a problem. Flared outlets are used for gas and high-pressure lines, where even a little leakage can cause major problems if left unattended.

Can you use compression fittings on steel brake lines?

Compression fittings can splice pieces or sections of steel brake line together to create a seal between the two sections. The pressure running through brake lines is extremely high. Compression fittings typically are not capable of withstanding this high amount of pressure.

How tight should a brake line fitting be?

Just snug them up, till you feel resistance, then maybe 1/8 turn. You just need good pressure between the flared faces. If you go too far you will cause more work, so take them to this point, then bleed the brakes. Check all fittings and if you find a leak give it another 1/8 turn or so.