What is the best way to clean off rust off the engines ?
pontorquer said
Nov 9, 2017
Since there is no more hot tanking and not too many machine shops around Winnipeg, if any that shot peen. What is the best way to clean off the rust on my rare 1971 455 HO and also a rustier 1967 Pontiac 400 engine block that I have in my precious collection ?
Is it at all painted? Rusting on a gasketing surface? Where you are going to paint?
pontorquer said
Nov 9, 2017
Thanks Carl, I'll make a trip to home depot ...
4SPEED427 said
Nov 9, 2017
Engine block in the house for the picture, I love it!
Pascal, why do you need it cleaned? Is it just so you can paint it?
pontorquer said
Nov 9, 2017
Carl,
I had to bring it in the house to check a cylinder that I thought was cracked, I tested it with penetrant and developer ( NDT procedure ) The good news it isn't cracked, just scratched. The block had to be room temperature warm to do it, my garage is not heated. Rust inside the engine/heads should be all removed and outside, it just doesn't look good.
4SPEED427 said
Nov 9, 2017
I've painted over worse than that and it lasted fine. However, the inside stuff is more of a worry, yes.
No heated garage? I thought you had built one a few years back for some reason.
Works wonders if you have the time to wait. Truck bed rails came out like new!! Plastic 45 gal drum and let soak,some heavy tie wire/chain and let sink to the bottom.
-- Edited by hawkeye5766 on Friday 10th of November 2017 12:47:33 AM
Taylor55 said
Nov 10, 2017
What is the NDT procedure ? I never heard about it.
Thanks Al
dcneric said
Nov 10, 2017
NDT, Non Destructive Testing . It is often a white powder on one side and a red die from the other. The red die is very invasive and it shows any pin hole or crack as a blood stain in the white. Often used in the nuclear industry. Some also call it die penetrate. My experience was on steam lines that could not be radiographed.
pontorquer said
Nov 10, 2017
Yup, I learned some of it along the NDT techs at work as they use it on our aircraft parts ... How it works : First you clean the area real good ( contact or brake cleaner works, spray it with the red dye penetrant in a can, let that sit on the suspected crack for 1/2 hour, wipe that off with a soaked lint free rag, then spray the white developer in a can so if there is a crack the red dye that penetrated the crack if there is one, will show it.
-- Edited by pontorquer on Friday 10th of November 2017 12:11:38 PM
dcneric said
Nov 10, 2017
Pascal, probably the best way I can think of dealing with the rust on those parts is to just give them to me and you won't have to worry about it.
pontorquer said
Nov 10, 2017
Meaning you'll cleaned them for me and give 'em back ? Oh gee thanks Eric !
dcneric said
Nov 10, 2017
Nothing but the best service for my friends. It may take a "few years" to get them back to you though..............
Since there is no more hot tanking and not too many machine shops around Winnipeg, if any that shot peen. W
hat is the best way to clean off the rust on my rare 1971 455 HO and also a rustier 1967 Pontiac 400 engine block that I have in my precious collection ?
Thanks Carl, I'll make a trip to home depot ...
Pascal, why do you need it cleaned? Is it just so you can paint it?
Carl,
I had to bring it in the house to check a cylinder that I thought was cracked, I tested it with penetrant and developer ( NDT procedure ) The good news it isn't cracked, just scratched. The block had to be room temperature warm to do it, my garage is not heated. Rust inside the engine/heads should be all removed and outside, it just doesn't look good.
No heated garage? I thought you had built one a few years back for some reason.
-- Edited by hawkeye5766 on Friday 10th of November 2017 12:47:33 AM
Thanks Al
Yup, I learned some of it along the NDT techs at work as they use it on our aircraft parts ... How it works : First you clean the area real good ( contact or brake cleaner works, spray it with the red dye penetrant in a can, let that sit on the suspected crack for 1/2 hour, wipe that off with a soaked lint free rag, then spray the white developer in a can so if there is a crack the red dye that penetrated the crack if there is one, will show it.
-- Edited by pontorquer on Friday 10th of November 2017 12:11:38 PM
Pascal, probably the best way I can think of dealing with the rust on those parts is to just give them to me and you won't have to worry about it.
Meaning you'll cleaned them for me and give 'em back ? Oh gee thanks Eric !