Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
11-21-2021, 07:09 PM | #1 |
Registered User
Join Date: Oct 2007
Location: Nampa Idaho
Posts: 7,554
|
Well, I got more questions
What business is there out there that does sand blasting or what ever it takes to clean up the undercarriage of my truck.. it is dirty and rusted looking all over underneath .. I want to have a sprayed on undercoating when cleaned up. and then put the new cat and muffler and tail pipes on
Do places like muffler hut sand blast also ? I can think of brake lines and all the open places under the motor that sandblasting wouldn't be good in those areas . What are other things that should not be hit with a sandblaster
__________________
When you learn a thing a day you store up smart. |
11-21-2021, 08:08 PM | #2 |
Registered User
Join Date: Jul 2014
Location: North-central Virginia
Posts: 1,104
|
Re: Well, I got more questions
Personally, I would go ahead and install the new exhaust now.
Once the truck is assembled, put it on a lift(ideally outdoors!) and powerwash the bottom side thoroughly. Use the most vicious turbo nozzle you can, and you'll dislodge a lot of the rust. Try to avoid hitting the wiring and any seals(oil-pan, etc) with the powerwasher at close range. Once that's done, and the truck has dried out, spray it down with fluid film. Repeat the fluid film treatment every November. The fluid film is a wax/oil mixture that forms a gummy oily layer over everything. It's not permanent, and can be washed off if you need to service something. Fluid film does fine over light surface rust. It doesn't trap moisture in that rust like some other products do. Do not use a rubberized undercoat! Those trap moisture and salt against the metal, and can frequently make the rusting issue worse. Rubber undercoating can theoretically work on perfectly clean metal, but the chances of getting your frame and components that clean are nil.
__________________
1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome! |
11-21-2021, 08:39 PM | #3 | |
Just here to tinker
Join Date: Jun 2008
Location: Holland, MI
Posts: 3,697
|
Re: Well, I got more questions
Quote:
__________________
78 C10 SWB Diesel #1 (wrecked)http://67-72chevytrucks.com/vboard/s...1978+silverado 78 C10 SWB Diesel #2 (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=650751 60 GMC Suburban (sold)http://67-72chevytrucks.com/vboard/s...d.php?t=445526 60 GMC 1000 (sold)http://67-72chevytrucks.com/vboard/showthread.php?t=298235 67 GMC 1500 (sold) http://67-72chevytrucks.com/vboard/s...d.php?t=803695 73 Chevy C20(Daily)http://67-72chevytrucks.com/vboard/s...d.php?t=852767 86 Suburban(summer unit) http://67-72chevytrucks.com/vboard/s...d.php?t=810697 88 Suburban 4x4(sold) |
|
11-23-2021, 03:47 PM | #4 |
Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,626
|
Re: Well, I got more questions
I agree. Pressure wash in lieu of sandblasting. You can get a mild acid wash from Napa, meant for cleaning big rigs and that will take off most surface rust, but you will want to spend some quality time again with the pressure washer to make sure to get all of the acid washed away. After that, your truck is nice enough that spending a couple of afternoons under there with some Rust-Oleum paint would be worthwhile. The only places I would put rubberized undercoating are in the wheel wells and the sheet metal bottom of the cab. But you need to have them clean and dry and have the rust treated first. There are a few different rust neutralizers that act as a primer when cured. Rust Mort is one of them.
|
11-23-2021, 04:31 PM | #5 | ||
Registered User
Join Date: Oct 2007
Location: Nampa Idaho
Posts: 7,554
|
Re: Well, I got more questions
Quote:
Quote:
__________________
When you learn a thing a day you store up smart. |
||
11-23-2021, 04:57 PM | #6 |
Registered User
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 3,051
|
Re: Well, I got more questions
Get yourself a Tyvek suit if you're going to pressure wash, that stuff goes everywhere.
https://www.amazon.com/Disposable-Du...15012405&psc=1 Used to steam clean machines and these were a lifesaver from getting soaked and then trying to get grease and oil out of clothes. Just toss it when you're done. They work great for sandblasting too, with tall boots so that the leg cuff is below the top of the boot.
__________________
'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
11-25-2021, 01:07 PM | #7 |
Robert Olson Transport
Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,310
|
Re: Well, I got more questions
i dont know if you have an Eastwood store near you but i bought a sandblaster from there and media for about $200 . I removed the brake and fuel lines and did it all myself If you are replacing the exhaust, cut it off and throw some rags in the pipes to avoid stuff backflowing in.. When i did my truck i bought a new brake line kit from inline tube, made my own steel fuel line blasted everything and POR 15ed everything
You will however need a good compressor it all depends on what equipment you have and how much to put into it.. otherwise look up sand or soda blasting in the yellow pages there are services but youll probably spend 4-5 hundred dollars on the service
__________________
Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
11-25-2021, 03:46 PM | #8 |
Moderator
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
|
Re: Well, I got more questions
Northern tool or Harbor Freight.
If you take a look at the pressure pot blasters and you have a welder you can fab one out of a 20 lb propane tank in a few hours. https://www.northerntool.com/shop/to...duct_200693483 This is how to fix the clogging.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. Last edited by hatzie; 11-25-2021 at 03:51 PM. |
11-25-2021, 03:50 PM | #9 | |
Registered User
Join Date: Oct 2007
Location: Nampa Idaho
Posts: 7,554
|
Re: Well, I got more questions
Quote:
__________________
When you learn a thing a day you store up smart. |
|
11-25-2021, 10:27 PM | #10 |
Registered User
Join Date: Jan 2007
Location: vernon b.c.
Posts: 3,022
|
Re: Well, I got more questions
I like sandblasters but that sand gets everywhere.
|
11-26-2021, 01:42 PM | #11 |
Moderator
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
|
Re: Well, I got more questions
Sure does. I wear a hood with lead shot sewed into the extended collar and a set of Tyvek PJs.
You want some kind of positive filtered airflow into the hood so the face mask doesn't fog over and you aren't breathing the dust. A clean shop vac with a diverter valve to bleed off some of the pressure would do. The other way to do it would be an additional hose from the air compressor. Compressor air tastes funny tho.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
Bookmarks |
|
|