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73-87 Chevy _ GMC Trucks => Body, Glass & Paint => Topic started by: the_legend_1981 on February 03, 2008, 08:49:59 am

Title: new doors
Post by: the_legend_1981 on February 03, 2008, 08:49:59 am
whats a good strategy you guys use to prevent rust on rust free set of doors?
Title: Re: new doors
Post by: Blazin on February 03, 2008, 11:51:38 am
Used motor oil mixed 75/25 with bar & chain oil sprayed inside them.
Title: Re: new doors
Post by: 77c15 on February 03, 2008, 11:57:13 am
Ask your painter to paint inside the doors if possible. Also, if you want to do this yourself, just spray some rustoleum inside there and make sure you use good felts and rubbers to keep the water out of the inside.
Title: Re: new doors
Post by: VileZambonie on February 03, 2008, 11:57:55 am
That ought to smell pretty good!  :P
Title: Re: new doors
Post by: werewolfx13 on February 04, 2008, 07:18:29 pm
Used motor oil mixed 75/25 with bar & chain oil sprayed inside them.

I use a similar mixture of used motor oil and marvel mystery oil, mainly to thin it. I also spray it down in the cab corners once a year.
Title: Re: new doors
Post by: loudnlow87 on February 04, 2008, 11:01:09 pm
(http://www.crestauto.com/products/Crest%20Mich%20E-Cat%20v1.5/HTMLCAT/images/michiganmasteracro-catv1.5_25_p1.jpg)

honey coat; all youll ever need. it never really dries tho, its supposed to be like that. great stuff.
Title: Re: new doors
Post by: the_legend_1981 on February 05, 2008, 06:26:24 am
where do you get that? wouldnt oil just was off of the cab corners?
Title: Re: new doors
Post by: werewolfx13 on February 05, 2008, 02:24:30 pm
If you wash your truck in that spot, it will, but I only wash that area thoroughly once a year..I had a pencil sized rust hole in my drivers cab corner, and a little bit of "softness" around it when I bought it in late summer/early fall 2006, and it hasn't gotten worse..I spray it from the inside of the cab as well as from under the truck, I don't do the inside of the doors though. I spray the backside of the rockers as best I can, down in the cab corners, and the "tailpan" on the back of the bed just below the tailgate and behind the bumper, I also spray the backside of the rear bumper, and up in those little drain slots on the outter fenders of the bed. Everything else is undercoated, and/or gets sprayed by the oil and transmission fluid that my truck flings all over the place..
Title: Re: new doors
Post by: loudnlow87 on February 05, 2008, 05:10:27 pm
 most autobody supply places should have it. its made by crest.
Title: Re: new doors
Post by: Blazin on February 05, 2008, 06:12:55 pm
I use bar & chain oil because it is suposed to be designed to cling to metal! Who knows.
Title: Re: new doors
Post by: werewolfx13 on February 06, 2008, 12:21:40 pm
I learned about the used motor oil + marvel oil from a Swedish guy..Evidently, thats their biggest method of rust prevention..They spray the whole underbody, and all the nooks and crannys..The best time is in the dead middle of summer when its hottest, because the heat causes the oil to "spread" over the metal and protect areas that you cant get an undercoater in to cover.
The bar and chain oil makes sense though, EXCEPT only certain brands of bar and chain oil actually cling to the metal. Stihl and husqvarna winter formula does, and theres some oil that is blue that does as well, though I don't remember what brand..
Poulan oil in the green jugs makes about 75% of all the bar and chain oil you see..most generic store brands are the same stuff. Its good bar and chain oil, but it doesn't cling to the metal the same. Our Stihl 660 with a 5 foot bar demands winter formula oil all year round, or it blues the tip of the bar from the bearings getting way too hot, since stihl doesn't use grease ports for their bar tip bearings anymore..bah.
Title: Re: new doors
Post by: the_legend_1981 on February 06, 2008, 02:49:52 pm
so are you saying that its a good idea to clean the truck up and then spray the whole underneath with a mix of engine oil and marvel?
Title: Re: new doors
Post by: SUX2BU99 on February 06, 2008, 03:08:44 pm
Not the whole underside, that gets exposed to dust, dirt and water. That'll just make a huge mess underneath your truck when everything sticks to it. The point of using oils is in hard to reach places that can potentially collect moisture and water when you don't know it.

I use a Canadian-made project called Rust Check. They make a thin viscosity product and a thicker gel-like product (Coat & Protect), both in spray cans. I try once a year to get to places like werewolfx13 said. I was under there the other day and it's still there in all of the locations that don't see heavy water spray. I haven't done it in at least 1.5 years. Anywhere you can get the long thin discharge tube into is a good place to use it. What I want to do is try heat-bending the tube into a 90 degree elbow so I can stick it into the screw holes from the sill plate into the rockers and get the inside of them really hosed down. I've also used their Rust Killer as a primer for when I repainted the inside of my wiper cowl area, where the paint was starting to peel.

http://www.rustcheck.com/products.asp
Title: Re: new doors
Post by: VileZambonie on February 06, 2008, 04:02:09 pm
What's wrong with some good undercoating? I'd prefer that over oil and dirt stuck to the bottom of my truck
Title: Re: new doors
Post by: loudnlow87 on February 06, 2008, 07:51:39 pm
What's wrong with some good undercoating? I'd prefer that over oil and dirt stuck to the bottom of my truck

thank you.
Title: Re: new doors
Post by: Blazin on February 06, 2008, 10:46:10 pm
I spray in the nooks and crannies, & all over the bottom of my rigs. Then I drive down dusty dirt road so its not so drippy. My trucks are work trucks so I could care less if they have oil all over the bottom side. If I have to work on them I presure wash them first.
Title: Re: new doors
Post by: VileZambonie on February 07, 2008, 06:35:59 am
Everyone does that up there ha Blazin? My friend came from up there and said they used to spray gear oil all over the undercarriage of the trucks. If walked within 10 feet of the truck it smelled like the connecticut river lol
Title: Re: new doors
Post by: werewolfx13 on February 08, 2008, 05:46:40 pm
Undercoater misses a lot of small areas, like seams if you don't pay close attention to get them..not to mention screw/bolt/drain holes..I've never had a problem with the smell from the oil, except when it would get on the exhaust..My truck isn't a show truck, so a bit of dirt and oil underneith isn't a big deal.
Title: Re: new doors
Post by: the_legend_1981 on February 08, 2008, 06:08:00 pm
i drive mine everday so i don't care about dirt underneath...so where are the common areas where you guys spray oil, how often, and what kind of oil do you actually use
Title: Re: new doors
Post by: werewolfx13 on February 08, 2008, 09:19:53 pm
75% used conventional motor oil, 25% marvel mystery oil in a spray bottle..you might have to do a little work to find one that will spray it, maybe add a little mineral spirits to thin it down a little bit. From inside the cab, spray down in the cab corners..from outside, spray behind the rockers as best you can, every little screw, bolt, and drain hole you can find underneith, the drain slots between the inner and outer bedsides at the fenderwells, all the seams where the bed supports touch the bed..There are more, I just can't think of them or how to explain them..I usually do it once every 1-2 years..I dont usually thoroughly wash the undercarriage, so it doesn't demand treatment more than once a year..Also, any spot that is actually starting to scale, if you scrape the loose scale off and spray it, it wont get any worse as long as there is a film of oil on there. Though, some areas scale and rust from both sides, and somtimes the back is really hard to get to...Its best to spray it when its very warm outside, preferably 80* or hotter..heat makes the oil spread to all the little tiny nooks and crannies..