fitting lube - AC Auto Repair Help Forum


	Auto Repair Home	SEARCH POSTS	WHO'S ONLINE	LOG IN

Automotive Repair

Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:
  Login
  Sign up here!

Latest Forum Post

1989 toyota pickup 3.0 crank no start

I have a 1989 toyota pickup 3.0 crank no...

Strut spring orientation and strut mount tension nut

2017 Nissan rogue awd 2.5 L Put in Monro...

Transmission stuck in part, I have tried everything

So I'm working on my elderly fathers 201...

2017 dodge journey LED headlights on/off randomly

Year of vehicle 2017 Make of vehicle dod...

Kia Soul starter replacement issues!

Okay so my car is a 2010 Kia soul 2.0 en...

Please Help - Knock sound & engine fail

Hi all, Hoping to get some insight and ...

multiple warning lights

2013 GMC Terrain 130,000 miles 4 cylinde...

03 alero no low speed blower

Good day everyone, I have a 2003 Olds a...

04 Chevy 2500hd tail light issues

Help!!! I have changed my combo switch...

1999 Grand Caravan Sport not starting.

Hi. I'm new here. I hope someone can hel...

fitting lube

Sign up here!

Search for (search options)

Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum

jjrbus
User

Jun 27, 2015, 3:00 PM

Post #1 of 5 (1965 views)

fitting lube

I was surprised at how easily my old AC threaded fittings came apart. When installing new parts is there a lubricant/sealer used on the aluminum threads? 134A if that makes any difference.

Jim

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 27, 2015, 3:28 PM

Post #2 of 5 (1960 views)

Re: fitting lube

Threaded alone parts I like silicone grease and some have used the aluminum colored anti-seize, brush in cap stuff. Nylog, and or mineral oil for rubber most popular. Avoid PAG refrigerant oils for a lube for these things,

T

jjrbus
User

Jun 27, 2015, 4:30 PM

Post #3 of 5 (1952 views)

Re: fitting lube

Thanks Tom. Now that I think about it, would be difficult to use one thing on O ring and not contaminate it with something else used on threads??

I have mineral oil dripping out of my old evaporator, could I use that for lubing O rings and threads??

When are you coming to Ft Myers to visit? Jim

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jun 28, 2015, 4:04 AM

Post #4 of 5 (1931 views)

Re: fitting lube

Lube exactly what you intend with exactly what you want to use. IDK, used real mineral oil really should be fine. Heard of some using baby oil if marked as mineral oil for "O" rings. I still like silicone grease for any of those the alloy threaded things too. Those in particular you said came apart well? Either had been treated before or might have fooled you and look hard if threads just gave out transferring metal such that they aren't really threaded well enough to work again at all?
Keep assorted products OUT of where if can get into refrigerant. The rest is assorted plumbing and sealing methods.

Again - note PAG oils that seem like and are a lube are also able to absorb moisture and change characteristics you don't want so plain don't use that as lube for other than called for inside a system,

T

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Aug 8, 2015, 3:02 PM

Post #5 of 5 (1863 views)

Re: fitting lube

Thread closed as continues and resolves on this page:

http://autoforums.carjunky.com/...s_F8/Update_P173855/

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

Search for (options) Privacy Sitemap