IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

Rebuilt Calipers - Pins, What's the issue? 30648017

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

User avatar
oragex
Posts: 4394
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 89 times
Been thanked: 206 times
Contact:
Canada
oragex

Re: Rebuilt Calipers - Pins, What's the issue?

Post by oragex » Wed Feb 03, 2016 2:48 pm

I did use silicone grease but noticed that on winter days the grease was getting thicker and sticky. On several forums there are discussions about silicone grease brands with some negative feedback. The SIL-GLYDE one seems to cause the least issues (Napa sells it under it's brand). I'm about to clean the grease off the pins and drive with no grease at all.

When replacing the pins, it's a good practice to remove the rubber boot where the pin sits, and sand all rust inside the metal hole where the rubber is inserted. Then use some silicone grease inside the hole before putting back the rubber boot. This rust pushes on the boot and causes the pin to be too tight when it slides.



benpineapple
Posts: 292
Joined: Tue Nov 03, 2015 1:01 pm
Year and Model: 06 V50 T5
Location: MI
Has thanked: 2 times
Been thanked: 1 time
United States of America
benpineapple

Re: Rebuilt Calipers - Pins, What's the issue?

Post by benpineapple » Thu Feb 04, 2016 12:44 pm

Unless you used the wrong hex head and stripped the pin, there's truly no need to get rid of them or replace them. Very easy to resurface. Mine were a little rusty towards the outside. I sanded them down nice and clean, cleaned them with mineral spirits, lubed, replaced. This was 9mo ago, they still look good as new.


2006 V50 T5
2001 V70 X/C AWD

1998 V70 AWD [RIP at 249,255M]
1990 240 [SOLD at 220xxxM]

User avatar
theWIFES_S70
Posts: 1141
Joined: Fri Jul 24, 2015 10:34 pm
Year and Model: 1998 S70 base
Location: Queens, New York
Has thanked: 32 times
Been thanked: 25 times
Peru
theWIFES_S70

Re: Rebuilt Calipers - Pins, What's the issue?

Post by theWIFES_S70 » Mon Feb 15, 2016 10:58 am

Meant to upload these a while back. I stuck with the OEM pins because the hex heads seemed to be in better shape than the torx heads. Here they are side-by-side. I didn't notice any real difference in their weight. They were exactly the same length too. I just felt too much play in the Torx heads to warrant keeping them, whereas the hex heads still felt great. These were out of remanufactured Cardone calipers.
caliper-heads.jpg
caliper_pins.jpg
You do not have the required permissions to view the files attached to this post.


1998 Volvo S70, N/A, 5-speed, 183K
2007 Volvo S40, 2.4i, 5-speed, 97K

User avatar
abscate
MVS Moderator
Posts: 18971
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 224 times
Been thanked: 740 times
Trinidad & Tobago
abscate

Re: Rebuilt Calipers - Pins, What's the issue?

Post by abscate » Tue Sep 17, 2019 2:38 am

Bump, added part number To thread


Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

User avatar
abscate
MVS Moderator
Posts: 18971
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 224 times
Been thanked: 740 times
Trinidad & Tobago
abscate

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by abscate » Sun Sep 29, 2019 7:30 pm

Update SEP 2019

If you search the part number, you will find that the pin quality of the rebuilds basically is sub par. My S70 lockedup both calipersdue to corroded aftermarket pins, which are poor quality stainless steel

One of the reasons the rebuilds are so cheap are the cheap pins.

Save your OEM pins

Compare the rebuilt caliper price after adding in real pins to the Volvo caliper, not the pin to caliper price.
These users thanked the author abscate for the post:
PeteB


Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

User avatar
FireFox31
Posts: 171
Joined: Mon Aug 14, 2006 10:32 am
Year and Model: 2000 V70 manual
Location: New Hampshire
Has thanked: 5 times
Been thanked: 5 times
United States of America
FireFox31

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by FireFox31 » Wed Oct 02, 2019 8:59 am

Maybe this is why all of my rebuilt calipers keep failing, but my one original caliper does not. I'm about to tear all the calipers apart and inspect them once and for all. Thanks for this tip.


-
FireFox31
2000 V70 manual, reborn

User avatar
abscate
MVS Moderator
Posts: 18971
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 224 times
Been thanked: 740 times
Trinidad & Tobago
abscate

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by abscate » Wed Oct 02, 2019 9:03 am

erik and jreed were the guys who first exposed this, kudos to them.

Important note - as you follow these threads, back in 2014, the rebuilders used good pins. In the never ending chase to the lowest price, at some point, they started using cheap crappy magnetic steel which corrodes and also has lousy six point hardware fittings - if you compare chinesium to OEM you can see the difference in workmanship.

I have no desire to spend an afternoon drilling out (a) stripped caliper pin(s)

The junky pins can be cleaned up and heavily lubed and will work, just add them to your annual inspection list (and even cheapskate me will replace them with the real thing rather than remove my calipers every year.)


Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

User avatar
erikv11
Posts: 9322
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 69 times
Been thanked: 219 times
United States of America
erikv11

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by erikv11 » Thu Oct 03, 2019 9:41 am

When an OEM caliper gets stuck/sticky, it is either due to dry pins (which can also get gunky but will clean right up with a brush and solvent) or a frozen piston.

The factory pins are basically never bad it seems - what abscate said, save those OEM caliper pins!


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

User avatar
FireFox31
Posts: 171
Joined: Mon Aug 14, 2006 10:32 am
Year and Model: 2000 V70 manual
Location: New Hampshire
Has thanked: 5 times
Been thanked: 5 times
United States of America
FireFox31

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by FireFox31 » Thu Oct 03, 2019 3:36 pm

OEM pins might be Torx as well, so don't immediately toss them. In April 2014, I had a Volvo dealership install front right caliper part 8111102. This is a rebuilt caliper. I assume it came with new pins which they used. While working on it last night, I noticed that the hex socket corners were rounded, though not as much as the one theWIFES_S70 posted. I used a Torx T45 bit to remove them.

Regarding the debate to lube the pins or not, my pins had barely any grease on them. They slid smoothly yet firmly out of the caliper boots. I will only use a tiny amount of Sil-Glyde on them in the future.


-
FireFox31
2000 V70 manual, reborn

User avatar
erikv11
Posts: 9322
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 69 times
Been thanked: 219 times
United States of America
erikv11

Re: Rebuilt Calipers - Pins, What's the issue? 30648017

Post by erikv11 » Thu Oct 03, 2019 3:38 pm

There is a debate whether or not to lube the pins??? I've seen a few dry ones that would barely move, then moved freely once lubed with Sil-glide, enough to convince me there is no debate.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

Post Reply