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Old 05-23-2020, 09:01 AM #31
tyrenta tyrenta is offline
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Originally Posted by Thebeastlives View Post
I would have sold that thing and invested in something that requires less effort

Yeah well my DD gets 11mpg with 700hp and 12psi of boost and I own 6 boats so Iím not one to make practical decisions on Ďinvestmentsí
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Old 05-23-2020, 09:16 AM #32
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Originally Posted by tyrenta View Post
I'm going your method -- I have some eastwood internal coating so will spray that but I'm going to blast anything internal with FF also
It will slow down and basically stop the rust. Just keep an close eye on things for a while. Hammer rot test is always a good method to find rotted areas..


Just the Eastwood internal coating or the rust inhibiting coating Eastwood coating. As it will work the best if super clean the inside frame out then use the rust inhibitor first then the internal frame coating. As if just the black spray paint you may with to save your time. ;)


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Old 05-23-2020, 09:50 AM #33
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Sometimes life happens and some things get passed onto the back burner. I for one am glad to see you didn't give up after 5 years and decided to tackle it yourself.
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Old 05-23-2020, 12:30 PM #34
Thebeastlives Thebeastlives is online now
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Originally Posted by tyrenta View Post
Yeah well my DD gets 11mpg with 700hp and 12psi of boost and I own 6 boats so Iím not one to make practical decisions on Ďinvestmentsí
Lmaoooo I here you. If you look at the number of threads where members dump tons of money and time the 3rd gen is the section where people make the most impractical investment decisions on our old ass 4 runners. Most of us are not immune and that includes me as well. I've got 5 vehicles between my wife and I. I don't need 5 vehicles all modified...lol
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Old 05-23-2020, 05:38 PM #35
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I spent most of last summer grinding rust with a wire wheel on my 98. It was in better shape than that, but that is workable. I coated with POR-15 and Fluid Film after the paint cured.

Grinding rust is a tedious and filthy job, especially if you want to be rid of ALL of it. I got lazy toward the end of grinding and left some of the tight spots. I feel like if you coat well after rust busting, it will keep the rust you missed (crevices, hard to reach spots) in check.
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Old 05-23-2020, 09:01 PM #36
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Opinions on rust / frame condition

It rained and was miserable all day so didn't do much. I blasted the gas skid bolts with Kroil, coming off tomorrow one way or another. Tranny skid came off and is taking a swim in the tank just so I felt like I did something.




Skids are off And Iím working on a larger electrolysis tank that they can fit into. A wheel would work also but electricity, graphite rods and water is more fun. Then some welding work on the front skid for practice.









I can't really do much until I settle on a spray on converter that won't get sticky on good paint like the Eastwood does, Corroseal/Ospho/PickleX20/Other?? and also get some excapsulator/paint. I'm leaning towards the new Eastwood Platinum Encapsulator which looks like their POR15 answer, but less prep, then satin chassis paint. FF is going internal on everything.



Also need to wait on a 1" RB lift kit so I can get a bit more access to the frame.



Once I have those I'm debating dropping the tank when I do the rear axle swap and using that opportunity to cover the entire frame and body from the xfer case back.....I don't have a lift and part of the reason its taken 5 years is because I had a master plan to upgrade my garage, get a 2 post lift, etc etc but....3 kids......so no lift it will be uncomfortable.



In the mean time,



Question: the two removable frame cross members, one that supports the tranny/xfer case, can those be removed to refinish without any structural issues? How do you support the tranny with that particular one out / do you need to?
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Last edited by tyrenta; 05-23-2020 at 09:06 PM.
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Old 05-23-2020, 10:10 PM #37
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Quote:
Originally Posted by tyrenta View Post
It rained and was miserable all day so didn't do much. I blasted the gas skid bolts with Kroil, coming off tomorrow one way or another. Tranny skid came off and is taking a swim in the tank just so I felt like I did something.




Skids are off And Iím working on a larger electrolysis tank that they can fit into. A wheel would work also but electricity, graphite rods and water is more fun. Then some welding work on the front skid for practice.









I can't really do much until I settle on a spray on converter that won't get sticky on good paint like the Eastwood does, Corroseal/Ospho/PickleX20/Other?? and also get some excapsulator/paint. I'm leaning towards the new Eastwood Platinum Encapsulator which looks like their POR15 answer, but less prep, then satin chassis paint. FF is going internal on everything.



Also need to wait on a 1" RB lift kit so I can get a bit more access to the frame.



Once I have those I'm debating dropping the tank when I do the rear axle swap and using that opportunity to cover the entire frame and body from the xfer case back.....I don't have a lift and part of the reason its taken 5 years is because I had a master plan to upgrade my garage, get a 2 post lift, etc etc but....3 kids......so no lift it will be uncomfortable.



In the mean time,



Question: the two removable frame cross members, one that supports the tranny/xfer case, can those be removed to refinish without any structural issues? How do you support the tranny with that particular one out / do you need to?
A wood board on a Jack or a non harbor freight jack stand. You can but I would just put a good jack or Jack stand under the transfer case to keep the pressure of your engine mounts.

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2001 4X4 V6 Sport Green 4 Runner (01 Green Sport)
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Old 05-24-2020, 08:35 PM #38
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Opinions on rust / frame condition

The good news for today:



The battery clamps returned my tranny skid to an unrusted condition:







And the gas skid came off, albeit with a bit of a fight -- rear bolt by the tire snapped off with the dewalt impact, and the outside center bolt by the running board rounded off and needed 20 painful minutes with the dremel, and I still have to deal with the stud. Anyone need a 3rd gen gas skid??







The bad news -- a major set-back to the plans that I had missed. My hammer testing had led me to think the issues were contained mainly to the rear axel housing back. However, the usual spot by the muffler does indeed have a problem -- this will require a major patch and means I overestimated how many years I can get out of this frame, which right now has dropped to zero.







One step forward two steps back. I may now have a parter on my hands, which is a shame with 154k on the clock.....

As she sits
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Old 05-26-2020, 08:23 PM #39
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I have two questions on frame repair that I can't find an answer to, both are related to structural integrity, especially when under the truck:

1) When cutting out bad portions of the frame to rebuild them, how much can you cut out before you run the risk of a failure? Or at least enough bend so that you are welding a repair into a now bent/stressed frame? Or is that not an issue?

2) Is there a proper method to do these repairs? i.e. have jack stands supporting the frame on either side you are cutting out?

Just thinking things through.....I know rookie questions for doing welding but I'm trying to learn how it works.
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Old 05-27-2020, 10:01 AM #40
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Quote:
Originally Posted by tyrenta View Post
I have two questions on frame repair that I can't find an answer to, both are related to structural integrity, especially when under the truck:

1) When cutting out bad portions of the frame to rebuild them, how much can you cut out before you run the risk of a failure? Or at least enough bend so that you are welding a repair into a now bent/stressed frame? Or is that not an issue?
I try to leave 50% of the frame. I mostly cut the bottom out when I can then cut the welding windows in to weld the plates on the inside. You can also cut out the inside of the frame and accomplish the same thing. If you look closely. Our frames are thinker C Channels with a thinner inside plate welded in on factory. So you really have to look at how is rotted to make sure you weaken it to bend point. So basically 25% to 50% max. Try to never touch the top frame well if possible and leave as much as you can until you get it beefed up. :-)



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2) Is there a proper method to do these repairs? i.e. have jack stands supporting the frame on either side you are cutting out?
I never completely cut the frame out unless i have no choice. Like a section is completely gone...

Get the Rig as high as you safely can and verify no smell of gas etc. Most of the time. I remove the gas tank for safety. Especially if working on that side of the frame well. Using oversized good jack stands. For example my 5 speed is setting on 12 ton jack stands while a repair its frame.

What I did was put the stands under the rear axle and front A frame to give me as much height as possible




Quote:
Just thinking things through.....I know rookie questions for doing welding but I'm trying to learn how it works.

Its how we all learn. Also you cant really weld with gas outside. Good thing your is flux core.. :-)

With what you have as a welder, you going to have to work to get the plates welded properly as the 110 welders sometimes have a harder time with 1/8 plate. You have to slow the welding wire speed down and make sure the area is super clean with a pass or 3 to get it welded.. :-)
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1997 4X4 V6 Red limited 4 Runner (97 Limited)
1998 4X4 V6 Sr5 Red 4 Runner (98 Tetanus1 )
1998 4X4 V6 Sr5 Silver 4 Runner (98 Tetanus2)
2001 4X4 V6 Sport Green 4 Runner (01 Green Sport)
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