Re: Jake's Challenger/Rust
[Re: jake71]
#519306
11/12/09 08:26 AM
11/12/09 08:26 AM
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Joined: Nov 2009
Posts: 61 Brighton, MI, USA
kb73rr
member
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member
Joined: Nov 2009
Posts: 61
Brighton, MI, USA
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Just a quick note. I sandblasted the heck out of most of the parts shown in my posts. The trick to not warping the part is to slow down the air speed. I did alot of experimenting with sand blasting due to the huge amount of posts claiming total destruction of panels from heat. It is not the heat! The speed at which the sand hits the metal has to be slowed to a point that ti does not "peen" it. Sand being thrown at metal at a high rate of speed has the same effect as a whole bunch of little dudes beating on the panel with little dude hammers! I saw first hand what happens with high velocity sand blasting on metal. It warps from the "hammer effect" not heat.Food for thought.
Good observation and totally correct. Sandblasting effectively peens the surface just like shot peening causing compressive stresses and that can cause bending and warping. The amount of bending is a function of the media type, blast pressure, impingement angle, and time. Specially made little pieces of metal called "Almen Strips" are used during commercial shot peening and abrasive blasting procedures as part of the process and quality control. You blast the Almen Strip just as you would the part your going to be working on and measure the amount of bending to verify the process is working correctly. The strip will bend in an arch up toward the surface that has been blasted.
We make jet engine parts where I work. Sometimes we do abrasive blasting to prepare the surface for dry film lube coating and we do this test every time. Incidently, if you flip the blasted strip over and blast the reverse side exactly the same, it will straighten back out. However, that's not likely to fix a warped body panel.
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Re: Jake's Challenger/Rust
[Re: jake71]
#519307
11/12/09 04:42 PM
11/12/09 04:42 PM
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Joined: Jan 2003
Posts: 1,756 London, England
Gavin
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,756
London, England
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The repop stuff is great when you don't have an option but if yours looks marginal, fix it.
Those are wise words indeed!!
+ another request for info on your grinding (I think you said it was a Roloc disc earlier??). Really nice clean up
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Re: Jake's Challenger/Rust
[Re: ridenlow12]
#519310
11/13/09 01:10 PM
11/13/09 01:10 PM
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Joined: May 2006
Posts: 1,414 Stow ,Ohio
demon440
pro stock
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pro stock
Joined: May 2006
Posts: 1,414
Stow ,Ohio
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I just noticed this thread. WoW... I hope you didn't pay anything for that car. Like I have said before,we have thrown away nicer cars than that. I would not waste my time or money on anything that far gone. Good Luck !
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Re: Jake's Challenger/Rust
[Re: demon440]
#519312
11/13/09 01:41 PM
11/13/09 01:41 PM
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Joined: Nov 2009
Posts: 290 Loveland Colorado
jake71
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Posts: 290
Loveland Colorado
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Quote:
I just noticed this thread. WoW... I hope you didn't pay anything for that car. Like I have said before,we have thrown away nicer cars than that. I would not waste my time or money on anything that far gone. Good Luck !
That hurt a little, but I'm OK. Thanks for lookin'.
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Re: Jake's Challenger/Rust
[Re: RUNCHARGER]
#519313
11/13/09 01:42 PM
11/13/09 01:42 PM
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Joined: Nov 2009
Posts: 290 Loveland Colorado
jake71
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Quote:
It's an R/T Challenger, I WOULD spend my time and money on something that far gone. At least when you build something with your hands you have a sense of acomplishment. A lot better than writing a cheque at some musclecar dealer for a bondo bucket someone else flipped.
Sheldon
Thank you. It's a big project but I'm having fun with it and don't have a time crunch to contend with. It gets done when it gets done.
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Re: Jake's Challenger/Rust
[Re: jake71]
#519314
11/13/09 03:09 PM
11/13/09 03:09 PM
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Joined: Jun 2006
Posts: 1,152 Colorado
CuriousYella70
super stock
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super stock
Joined: Jun 2006
Posts: 1,152
Colorado
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Quote:
Quote:
I just noticed this thread. WoW... I hope you didn't pay anything for that car. Like I have said before,we have thrown away nicer cars than that. I would not waste my time or money on anything that far gone. Good Luck !
That hurt a little, but I'm OK. Thanks for lookin'.
Yeah, that was a bit uncalled for. I salute you for taking a car that most people wouldnt even look at twice and restoring it! So the he** what if its rusted and needs a whole new back end? You're saving a piece of mopar history and I personally think you're doing a great thing and so far, a great job!! Keep it up! People will say the same thing when they see me start my thread on my 70 R/T Charger which needs a whole new back end but so what, all that matters is that you're having fun and enjoying every second of it and if you ever need any help, i'm a part of the Southern Colorado Mopars Club - we're always willing to help out another mopar guy!
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Re: Jake's Challenger/Rust
[Re: demon440]
#519316
11/14/09 09:39 AM
11/14/09 09:39 AM
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Joined: Nov 2009
Posts: 290 Loveland Colorado
jake71
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Quote:
I didn't say he was doing anything wrong. Just don't understand why you would want to start with such a rough car to begin with. As far as it being an R/T, so what. By the time he gets it finished, he will easily have twice as much invested in it than it is worth. There are still lot's of good deals out there, just need to look a little harder. Here is my $1500. Demon. Take care, sorry if I offended you.
No harm done. Everyone is entitled to their own opinion. I felt that what I paid for it might be a little high but it was the project I had been looking for. I paid in the range I had been seeing them go for in similar condition. As for the time and money I'll have in it, That's not really an issue as I'm planning to keep it. I tried fishing for many years and the money I put in that was only returned to me in fun value. One of my friends spends alot of money on sailing and he'll never get any of that money back but he's having fun. If I were in this for the money I'd be a fool but It's all about the pleasure of putting this one back on the road and knowing how it was done.
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Re: Jake's Challenger/Rust
[Re: jake71]
#519317
11/14/09 12:18 PM
11/14/09 12:18 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
I didn't say he was doing anything wrong. Just don't understand why you would want to start with such a rough car to begin with. As far as it being an R/T, so what. By the time he gets it finished, he will easily have twice as much invested in it than it is worth. There are still lot's of good deals out there, just need to look a little harder. Here is my $1500. Demon. Take care, sorry if I offended you.
No harm done. Everyone is entitled to their own opinion. I felt that what I paid for it might be a little high but it was the project I had been looking for. I paid in the range I had been seeing them go for in similar condition. As for the time and money I'll have in it, That's not really an issue as I'm planning to keep it. I tried fishing for many years and the money I put in that was only returned to me in fun value. One of my friends spends alot of money on sailing and he'll never get any of that money back but he's having fun. If I were in this for the money I'd be a fool but It's all about the pleasure of putting this one back on the road and knowing how it was done.
Well said and I second that
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Re: Jake's Challenger/Rust
[Re: demon440]
#519319
11/14/09 07:22 PM
11/14/09 07:22 PM
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Joined: Jan 2004
Posts: 9,066 Eugene, Oregon
minivan
master
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master
Joined: Jan 2004
Posts: 9,066
Eugene, Oregon
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Here is my $1500. Demon. Take care, sorry if I offended you.
Just to compare I can post a pic of my kids $700 olds cutlass.......
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Re: Jake's Challenger/Rust
[Re: Scott Carl]
#519321
11/16/09 01:21 AM
11/16/09 01:21 AM
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Joined: Nov 2009
Posts: 290 Loveland Colorado
jake71
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Loveland Colorado
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Looks like a great project, Jake. I thought I had a lot to do on mine but you have me beat However, if I had that much to do I would do it too. Its not about the time / money when you are doing it for the simple reason of enjoyment. Mine will never be worth what I have into it either but I don't care. I plan to make it nice and hopfully enjoy it for another 30 or so years. My grand kids can then repair my damages and mistakes if they so desire. If you want to take the time to look, here's my project: https://board.moparts.org/ubbthreads/show...e=0#Post4838122
I've been watching yours for a while now and it's projects like yours that keep me going! Thank you for stating your take on these projects. It's a hobby to me and obviously to you also. There's a lot of pride to be had in resurrecting one of these beauties and I hope more people will start taking it for face value. Great job so far and let me know if there's anything I can do to help. I don't have much experience but I do have pics!
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