The undercarriage of my 1999 jeep wrangler has quite a bit of surface rust. Had it checked out by a mechanic who said frame is fine. I want to try to stop the rust from getting worse. I heard spraying with wd 40 will help. Should I use a rust converter or inhibitor first. Sorry if I am using the wrong terminology. Advice appreciated.
How can I stop rust from getting worse?
- Thread starter KarenLee
- Start date
If you don't have anyplace that's warm enough to paint until spring your best bet would be to scrape off whatever's loose and spray everything with Fluid Film. It works much better than WD40.
You'll also want to spray that stuff inside the frame no matter what you do to the outside if it.
You'll also want to spray that stuff inside the frame no matter what you do to the outside if it.
Yes fluid film will help. Spray it all over the undercarriage liberally. It won’t stop rust entirely but applies a nice oily film that will last through winter and keep a lot of crap (road salt) off your frame. I would take a good look inside your frame again and see if you can feel any metal chunks inside.
Rust proof your frame:
Pressure wash (use a high pressure washer not the car wash ) the under side knocking off all of the dirt and loose rust.
Hit all the holes in the frame to try a get the inner frame cleaned out.
Let it dry for a couple of days.
List of stuff needed.
Siphon air gun, here is one (there are plenty out there to buy) the main thing is being able to adjust the spray to a fog pattern.
https://www.mscdirect.com/product/details/42098285
Get a Tyvek coveralls, rubber glove and face shield.
Two gallons of Ospho.
https://www.ospho.com/directions.ht...e paint and,hours, then apply whatever paint.
Waxoyl
https://www.roversnorth.com/parts/rnw-diy-4_waxoyl_aerosol_diy_kit_for_large_chassis&type=4
Ten pounds of Baking Soda.
Plastic tarps
Garden Hose with spray nozzle.
Jack Stands and pads to raise the jeep up.
After having let the jeep dry, Raise the jeep up as high a possible giving maximum room to work underneath.
Hook spray gun to compressor using water adjust the spray to a fine fog mist the sprays out about 2 feet this will allow you to get the Ospho up inside the frame with maximum coverage.
Once you have got the spay pattern dry the nozzle by spraying air thru.
With coveralls face mask and gloves on your spray water on the driveway to keep the Opsho from staining the driveway.
Start spraying the inside of the frame just apply so that it is fully coated and dripping out from the frame, once you have the inside done hit the outer frame make sure to get the top of the frame.
Once done spread the baking soda on the ground and use the hose to rinse the drive way off.
After a couple of days you are ready to apply the Waxoyl it is the same process as the Ospho.
Put the tarps down (to keep the driveway clean) then have at with Waxoyl you want it to be dipping out of the inside frame then do the outside.
Give it a day to dry the repeat until you have used all the Waxoyl.
This is not cheap but it will rust proof your frame.
Pressure wash (use a high pressure washer not the car wash ) the under side knocking off all of the dirt and loose rust.
Hit all the holes in the frame to try a get the inner frame cleaned out.
Let it dry for a couple of days.
List of stuff needed.
Siphon air gun, here is one (there are plenty out there to buy) the main thing is being able to adjust the spray to a fog pattern.
https://www.mscdirect.com/product/details/42098285
Get a Tyvek coveralls, rubber glove and face shield.
Two gallons of Ospho.
https://www.ospho.com/directions.ht...e paint and,hours, then apply whatever paint.
Waxoyl
https://www.roversnorth.com/parts/rnw-diy-4_waxoyl_aerosol_diy_kit_for_large_chassis&type=4
Ten pounds of Baking Soda.
Plastic tarps
Garden Hose with spray nozzle.
Jack Stands and pads to raise the jeep up.
After having let the jeep dry, Raise the jeep up as high a possible giving maximum room to work underneath.
Hook spray gun to compressor using water adjust the spray to a fine fog mist the sprays out about 2 feet this will allow you to get the Ospho up inside the frame with maximum coverage.
Once you have got the spay pattern dry the nozzle by spraying air thru.
With coveralls face mask and gloves on your spray water on the driveway to keep the Opsho from staining the driveway.
Start spraying the inside of the frame just apply so that it is fully coated and dripping out from the frame, once you have the inside done hit the outer frame make sure to get the top of the frame.
Once done spread the baking soda on the ground and use the hose to rinse the drive way off.
After a couple of days you are ready to apply the Waxoyl it is the same process as the Ospho.
Put the tarps down (to keep the driveway clean) then have at with Waxoyl you want it to be dipping out of the inside frame then do the outside.
Give it a day to dry the repeat until you have used all the Waxoyl.
This is not cheap but it will rust proof your frame.
Similar threads
