Dont make this mistake when you grease you caliper sliding pins | typical mechanic TIP

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[MadMonk]

I've done brakes both professionally and on my own vehicles for over 30 years and I was taught to wipe off the tips of the pins so it acts as a reservoir for grease once the pads start to wear. I never questioned it, but just did it as habit. Your explanation makes more sense to me. Different reason, but same result.

[thomasinnis]

That's why there's flat spots on the sides of the pins. Also, there's no seals along the pin and it's not an interference fit so there's clearance for grease to escape. Good concern but invalid. Pump it in with your hands a few times to ensure it's bottoming out.

[metalhalide]

There seems to be enough clearance between the pin and the bore for excess grease to get out under pressure otherwise the pins would not go into the bore with the bushing, also, the bushings have groves which is probably by design to prevent hydrolocking..

[justinsmith]

When you pull out the pins, there’s always grease on the end. It’s typically cleaner than the grease on the sides. I call shenanigans on this entire video. Diagonal wear is caused by binding, not have grease on the end of the pin.

[leexxxa]

just here to confess that after 3 infuriating bracket rebuilds, failures & then replacements due to seized pins giving me major issues - i stumbled upon your video & have been forced to come to terms with the harsh reality that the issue was never the caliper, pins, etc. the issue is me. i’m the issue. & the ungodly & horrifically wrong globs of grease that i swore had to be applied in order for the pins to work.

( ps i am currently mid brake job #3 (go figure) & almost threw the wheels back on … changed my plans & now have all 4 brackets back on the bench lmao )

thanks for the video & saving myself hopefully another brake job . i learned something

[sunilcherianpullockaran]

I know it is too late for a response being a 1-year-old thread, but for future DIY freaks, here is an insight. I had a confounding problem with my Chevy Cruze Diesel for more than 6 months when the calipers would not release after lifting the foot off the brake pedal once it got to high temperatures. The brake assembly used to be serviced the usual way at the authorized service centre by greasing the slide pins with appropriate grease from many different brands, but to no avail. The mechanic then felt it was the synthetic brake cylinder seal, but that too was not the culprit. I then decided to do a DIY of the problem and found out that the caliper pins were not the problem at all and neither was the piston rubber seal. The actual issue was with the front disc brake alloy pistons of the brake caliper assembly. Do not ask me why but the composition of the piston used in the Cruze Diesel in Bhaarath (India) was suspect as it enlarged minutely over time (it was not the brake cylinder rusting); I sanded it down and then cleaned it thoroughly and put back the assembly, and it has been a smooth ride ever since. Fuel efficiency too has gone up from 9kmpl to 14kmpl as there was severe drag from the brakes. Acceleration too has gone up by leaps and bounds. In my particular case, the piston was the culprit and not the sliding caliper pins, brake cylinder or the brake cylinder synthetic seal.

[slipperyjohnson]

I learned this a long time ago and it's a good tip. You should always check the pins and lube them. Also, before starting the brake job you should buy a boot kit and have it on hand in case you need it. Sometimes the boots are cracked or "swollen" and they need to be replaced. If water gets in, that's gonna wash out the grease and cause the caliper to stick.

[valichesu]

You can put as many grease as you want, the excess will be trown out when you first put the pin into the caliper, there is enough clearance. Actually the most important thing is to clean the pin and the bore from the old grease before puting new one. Especially for older cars where a wrong grease might be used.

[ballhawk]

Good tip (literally). One thing I always do is move the pin in and out fully while putting it all back together.

[drwisdom]

Side issue. My wife's brakes have little rubber booties to protect against brake dust entering the caliper pin channel. But one wasn't installed properly at the factory. By the time I discovered it the brake dust had entered and it had been jammed for a while causing uneven brake wear. It was fixable but very hard to yank out. So make sure if you have rubber bootie protectors that they are reinstalled correctly.

[TunerZen]

Grease on the tip doesnt matter. It will get push to the side anyways and push back out. Its important to clean them and grease them but it doesnt matter if its on the tip.

[pontiacgto]

Always use the silicone grease as shown. They dont dry out like the standard grease.

[tjmusa]

great tip, all the years of changing brakes, never thought about the grease build up and the travel distance. thanks again

[joesc]

I'm a retired mechanic and have been doing brakes for a very long time. I never had a problem by putting a little grease on the tip of the pin. Do you really think the manufacturer designed the pins to bottom out inside the caliper bore? There is clearance inside the bores for a little grease. 40+ years of experience.

[Mika_N_DJTonyTorres]

I have that problem with the break pin stuck wont move who ever did the greasing did it wrong how do i get the pin out to clean that grease thats in there stopping the pin from going all the way in and from moving. .?

[daniellam]

Good day all the expert mechanics,
As a lic.mechanic by trade myself,
The brake pins serve few things
#1. By allowing the caliper slide
Sideways freely without holding
Or dragging when braking.
#2. The O-ring on the pin is to absorb the pulsation, noise making while braking.some O-ring does has grove which allow excessive lubricant to pass through.ofcourse
we don't lube the end pin with tons
Of lubricant. right.
#3. Some late model Ford build vehicles or trucks has a rubber
damper built-in sliding pin on rear brake calipers.It serve the same
purposes.

[NeutronX]

Great tip. Plus pulling out the pins will be harder because the grease makes a suction vacuum effect.

[Krty]

Perfect. Right to the point. You didn't take 10 minutes to tell us what you did in 2 and a half.

[ciphercode]

I've always maintained my own vehicles and although I dont use the amount of grease that you did there, I've never had any problems greasing the entire pin. We do drive in alot of snow, slush, ice, and rain too. Just a dab will do ya.

[todd]

I was thinking the whole time what can this guy teach me about brakes I don’t already know. The grease at the end prevents the caliper from sliding. Nice video👍