R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Thread Tools Search this Thread
Old 02-01-2009, 05:14 PM   #1
Tech Fanatic
mfrosty's Avatar
Join Date: Jan 2009
Location: Baltimore
Posts: 920
Trader Rating: 14 (89%+)
Default Hingepin reconditioning

So I was in the middle of a teardown/rebuild of a used RC8 that I just picked up and I noticed how much crud had built up on the hingepin, so much that I could barely get them out of the arms. It was almost fused to it and a rag wasn't cutting it. Low and behold what do I see? Some 800 grit sandpaper and my 18v drill hmmmmmmmm.........................

I secured the hingepin in the drill (wrap the end in the drill with something to protect it from damage) and wrapped the 800 grit (available in the automotive section of WalMart)around the pin and pulled the trigger working the sand paper up and down while it's rotating. After about 5 seconds it was smoother than new. Take it out flip it over and get the rest that was in the drill. Works great!

After that I took some Mobile 1 Synthetic grease and put a light coat inside the hingpin holes in the arms (after cleaning with a pipe cleaner) and now the arms are SUPER smooth with absolutely NO play.

And that Mobile 1 grease is $8.99 for a lb at Pepboys, I use it in the gearboxes, on shock seals, diff o-rings, hingepins and CVD's a little bit goes a LONG way, this lb will probably last me longer than I'll probably be racing. Beats the hell out of paying that much for a few cc's of grease. I highly recommend it!
mfrosty is offline   Reply With Quote
Old 02-01-2009, 10:16 PM   #2
Tech Master
jkas10's Avatar
R/C Tech Elite Subscriber
Join Date: Nov 2006
Location: Living in Paradise! Not really...
Posts: 1,226
Trader Rating: 121 (100%+)

I agree with what was said above, fine sandpaper. Mobil 1 grease is great for diffs and shocks, etc., but I wouldn't use the Mobil 1 on this exposed part unless you have no, or little, dust. You'll have the same issue of caked on dirt in no time. I use a very light bushing oil in small amounts.

If you really want to get carried away, polish the freshly cleaned pin with Mothers alum polish. A little on a rag and spin up in a drill. Learned that from tuning brushed motors for electric racing. Not a secret with elec guys, just thought I'd share with the nitro crowd.
Jeremy Kasten - Cole's Pitman! (Dad); Kasten Racing: www.facebook.com/kastenracing
THANK YOU Sponsors: Mugen Seiki; REDS; AKA; Leadfinger Racing; NitroPro Fuel; Futaba; RC Addiction Products; Dialed-RC Hobbies; Ben Brocato Designs (BDB); PT RC Racing Oils; CowRC
jkas10 is offline   Reply With Quote
Old 02-02-2009, 08:10 AM   #3
Tech Lord
Integra's Avatar
Join Date: Dec 2006
Posts: 12,484
Trader Rating: 8 (100%+)
Send a message via MSN to Integra

I just use my bench top buffer with some compound and it take's em back to Shiny new.
TNS Driver - Radio Post - Blue Groove Apparel - Team Panther - Hitec - Losi - W.E.D. Paint - Clockwork Fuel - Competition Heat - SUMO Racing - Tekin - Team Terribles - M2C Racing - Matrix Concepts - Kal Gard - BuKu Power - DE Racing -
Integra is offline   Reply With Quote
Old 02-02-2009, 10:40 PM   #4
Tech Addict
sugs's Avatar
Join Date: Nov 2008
Location: Escondido, CA
Posts: 566
Trader Rating: 3 (100%+)

I use automotive brake cleaner on my hingepins, then spray them with a coat of Dry Graphite film lube from Napa. Wait for them to dry maybe 5 minutes and then reinstall. Never have any buildup doing it this way.
- Associated B4.1 Worlds -
- Associated SC10 FT -
- Associated SC10 4x4 -
- Mugen MBX6 Alpha F850 -
- Nomadio Sensor - Hitec servos - Panther tires - DE Racing -
sugs is offline   Reply With Quote
Old 02-03-2009, 02:11 AM   #5
Tech Elite
Join Date: Sep 2001
Posts: 3,022
Trader Rating: 36 (100%+)

When first building a kit...
1) Use a reamer or appropriate drill bit to very, very slightly debur hinge pin holes.
2) Use fine metal polish to clean all hinge pins (shock shafts too).
3) Squirt a little White Lightning bicycle chain lube inside hinge pin holes, assemble as usual.
NitroOB4You is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 04:02 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net