New brakes doesn’t fit (now fits)

2123 Views 18 Replies 7 Participants Last post by Limshady88, 6 mo ago

Limshady88

Discussion Starter · Sep 25, 2021

Front Brakes. I bought TRQ Cross drill/slotted fronts and HAWKS HPS brake pads. Tried installing them today but unable to get 14mm bolts back on. The holes won’t line up, seems like the rotors and/pads are too thick. Is that possible? I compressed the piston all the way back in and it just fits over the pads with zero wiggle room. Both sides are the same issue. Any advice? Going to Autozone and check the thickness of their pads and rotors vs TRQ/Hawks.

I also threw out the old pads so I can’t even check to see if the thinner/old pads would fit with the new rotor 😩

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Limshady88

Discussion Starter · #2 · Sep 25, 2021

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Limshady88

Discussion Starter · #3 · Sep 25, 2021

Quick update. Made it to Autozone and the Duralast Max pads are the same thickness so I didn’t bother getting it. Sat back down by the Driver side brakes and began playing with the slide pin and to my surprise it moves in and out (more to come), so I pulled them up, cleaned them up and greased them. All fits nicely on the driver side.

Now, I did passenger side earlier and this was problem, I tried turning the slide pin (didn’t realize at the time it slides out completely until after the I revisited the drivers side) and top and bottom didn’t budge. Well, it all starts to make sense now. Couple weeks ago I was having grinding noise when I applied the brakes. Parked it, jacked it up and removed the old pads while I waited on the new Hawks pads to arrive. The passenger inside pads were worn all the down to the plate (hence the grinding I guess) and I bet the frozen slide pins was the culprit. Next step is get a new caliper bracket with slide pins.

NameofUser

· #4 · Sep 26, 2021 (Edited)

Limshady88 said:
... began playing with the slide pin and to my surprise it moves in and out (more to come), so I pulled them up, cleaned them up and greased them. All fits nicely on the driver side.

... passenger side ... didn’t realize ... it slides out completely until after the I revisited the drivers side...

That is scary you are servicing a critical automotive function, and you didn't know what you were doing from the start.

Get a repair manual, so you have a knowledgeable guide to walk you through repairs. You can get the Toyota factory service manual from Toyota's TIS (Technical Information System), or Haynes/Chilton (which are not nearly as good as the factory service manual). If you can't afford either, your local library may have a Haynes/Chilton on the shelf, or you might be able to gain access online to Haynes/Chilton via your library's website. NOT a good practice to attempt a critical repair blindly.

YouTube is NOT a reliable source for automotive repairs either. Some info is correct, some entertaining, some are scarry/horrible.

Reactions: 2

Limshady88

Discussion Starter · #5 · Sep 26, 2021

Thanks for the advise. Will invest in a repair manual 👍

meeder

· #6 · Sep 26, 2021

Cleaning and lubricating slide pins is a standard procedure when doing a brake job.

Reactions: 2

Bigphil555

· #7 · Sep 26, 2021

Heads up, you said "greased" the slide pins. Just make sure you use a rubber safe silicone lube, otherwise the boots will rot away quickly.

Also, clean the pins until they are shiny, and also get a brush inside the pin guide and clean it out properly (use some brake parts cleaner too)

Reactions: 1

Limshady88

Discussion Starter · #8 · Sep 26, 2021

Will do, thanks

05RAV

· #9 · Sep 27, 2021 (Edited)

meeder said:
Cleaning and lubricating slide pins is a standard procedure when doing a brake job.

This is some of the most underrated advice in regards to disc brake maintenance.

Brake dust is made mostly of iron particles. Iron is reactive to oxygen, creating hydrous iron oxide (rust). Now water is usually categorized as neutrally based, but the world we live in today produces precipitation with a pH of about 5 (acid rain), or for some of you among higher density populations, a pH of 4.

Splashing through acidic rainfall (or salted winter roads) and dusting our brake components with iron particles is the mother load of bad ideas on planet bad idea. But what can we do? We wash our cars, but our brake systems seldom see the care our RAV's body gets. Semi-Metallic and Ceramic brake pads have helped reduce dust over the years, but our RAV4.2s still bear the torture of iron collection and acid treatment over decades.

I placed my brake pins in containers of pure white vinegar for days at a time to completely remove the oxides. If the pins were badly pitted, I would recommend replacing with new. Then I polished the pins to remove surface blemishes and applied silicone grease. Avoid petroleum greases. I use a high temp Permatex product.

www.permatex.com

Permatex® Silicone Ceramic Extreme Brake Parts Lubricant

Permatex Silicone Ceramic Extreme Brake Parts Lubricant protect and lubricates every part of a brake assembly and prevents comebacks caused by irritating brake noise. -Formulated to reduce brake noise, vibrations and harshness -Dampens natural vibrating frequencies -Treated with the latest...

www.permatex.com

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Reactions: 2

Limshady88

Discussion Starter · #10 · Sep 28, 2021

New bracket, pins and boots arrive. Will pick up a bottle of the Permatex brake lubricant.

Reactions: 1

Limshady88

Discussion Starter · #11 · Oct 2, 2021

Finally completed the front brakes. Both sides slide pins greased and moving smoothly with the rubber boot on. Brakes was also bedded with 8-10 40/50mph to 10mph braking. Some smoke was coming from both front brakes but dissipated when I returned home. Brake feels GREAT 👍

Reactions: 2

Bigphil555

· #12 · Oct 2, 2021

Well done Bro, good job

Reactions: 1

Limshady88

Discussion Starter · #13 · Oct 2, 2021

Rear brakes are next

Reactions: 1

05RAV

· #14 · Oct 3, 2021

Limshady88 said:
Brakes was also bedded with 8-10 40/50mph to 10mph braking. Some smoke was coming from both front brakes but dissipated when I returned home. Brake feels GREAT 👍

9/10 owners don't know this is a thing. Great job!

I'll drag the breaks while I'm driving until they start smoking, then hammer the pedal to the floor. What you described was perfect, you don't want to come to a complete stop when conditioning new brakes.

Life hack: if you're getting feedback in your brake pedal (vibrations) or have noticed diminished brake performance, you can take your RAV for a drive and re-condition the pads and rotors using this technique.

Reactions: 2

Limshady88

Discussion Starter · #15 · Oct 7, 2021

Rear brakes complete. Much easier than Front, maybe because nothing was seized 😂. Replaced rotors too, adjusted hand brakes, and installed Powerstop pads. Didn’t see/read much about bedding the rear brakes but I did take it about and similar to the front brakes did a several 50-10mph. I can see the pad wear on the rotors similar to the front.

Bigphil555

· #16 · Oct 7, 2021

Well done, you are on a roll

Adfhjudchij

· #17 · 6 mo ago

Limshady88 said:
Quick update. Made it to Autozone and the Duralast Max pads are the same thickness so I didn’t bother getting it. Sat back down by the Driver side brakes and began playing with the slide pin and to my surprise it moves in and out (more to come), so I pulled them up, cleaned them up and greased them. All fits nicely on the driver side. Now, I did passenger side earlier and this was problem, I tried turning the slide pin (didn’t realize at the time it slides out completely until after the I revisited the drivers side) and top and bottom didn’t budge. Well, it all starts to make sense now. Couple weeks ago I was having grinding noise when I applied the brakes. Parked it, jacked it up and removed the old pads while I waited on the new Hawks pads to arrive. The passenger inside pads were worn all the down to the plate (hence the grinding I guess) and I bet the frozen slide pins was the culprit. Next step is get a new caliper bracket with slide pins.

What a dumbass toxic response. Also YouTube has plenty of great advice

Reactions: 1

NoMoreDomestic

· #18 · 6 mo ago

Adfhjudchij said:
What a dumbass toxic response. Also YouTube has plenty of great advice

Note:
Joining a forum to come into a thread that has been silent for over a year to post what you did isn't always necessary. Some might even say it is a dumbass response.

Reactions: 1

Limshady88

Discussion Starter · #19 · 6 mo ago

Adfhjudchij said:
What a dumbass toxic response. Also YouTube has plenty of great advice

Ahhh a Newbie, let me be the first to welcome you to this forum. I hope you have more to offer this forum than just,” Youtube has plenty of great advice.” FYI, Youtube also has plenty of dumbass advice too….. be careful 👍

Reactions: 1

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