Chemically stripping engine block. Yea or nay?
In the next week or two I will be pulling apart my short block to prep it for the engine shop. The shop I am sending it to said that if I have them strip the block bare it will cause wear to the block which may require some extra machining processes.
For other non-engine projects friend of mine have used chemical stripping called "Alkaline electrolytic immersion" to strip all paint and corrosion. Here is the page from the website Redi-Strip Company | Paint Stripping and De-Rusting | Roselle, IL. Is there any reason I SHOULDN'T go that route with my block? Are there any items I should or should NOT have dipped? For example, should I have the windage tray dipped? How about squirters? Should the main caps be sent or could I just keep them at home since they are oil bathed constantly anyhow? I am also tempted to send my valve cover and oil pan while I am at it. From experience it comes back beautiful. Thanks! |
said that if I have them strip the block bare it will cause wear to the block which may require some extra machining processes. |
Normally when a engine is built the heads/block is taken apart fully and cleaned chemically.
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Yes, taken apart, cleaned, bored/honed, hot tanked. I've done many times.
I just don't understand what they mean by "if we strip it, it will cause wear, requiring machining" what wear? and if they're talking about bearings/cams, obviously you have to use assembly lube or oil when re-assembling it |
Originally Posted by Chiburbian
(Post 1331336)
I am also tempted to send my valve cover and oil pan while I am at it. From experience it comes back beautiful.
https://www.miataturbo.net/attachmen...ine=1454113561 |
Originally Posted by 18psi
(Post 1331340)
I'm simply not understanding this part
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I'm just trying to understand the process, not saying it's bad or something.
So they bead blast it? I've always just had mine cleaned/hot tanked, never bead blasted. You'll need to paint the block anyway or it will look poopy (literally) in a short time since it's cast iron. I wouldn't go any further than degreasing and hot tanking. Just my .02 |
I imagine it's something like that. Perhaps the hot tank system they use is less caustic than the kind that removes rust? Of course I plan on painting it, but I just want to make sure get all rust off before I start.
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