Engine Block, Epoxy…. or Etch?
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I’m weighing my options right now, the block isn’t prepped, I’m going over it with wax and grease remover and red scotch brite right now. I’m worried I won’t have enough bite in the steel which is why I’m considering etch. What do you guys think is the best way to prep this and should I use etch or epoxy?
hmmmm … tough call :unsure: :huh: both :rock
could you soda blast it or something like that to help with abrasion?
Personally, I would just go straight epoxy.
Is the engine disassembled or in pieces? If it is pieces, could you have a machine shop dip it?
[quote=”Ben” post=14911]could you soda blast it or something like that to help with abrasion?
Personally, I would just go straight epoxy.
Is the engine disassembled or in pieces? If it is pieces, could you have a machine shop dip it?[/quote]
It’s mostly assembled, The top end is missing, waterpump is attached, took the the distributor off. From what I understand the owner wants the waterpump pained too, bolts and all. I’m leery of blasting the block because I don’t want media in any orifices, from what I understand, the engine has already been rebuilt. Can anyone say @$$ backwards :cens
Tough call. I would say you can’t go wrong with epoxy, but I have never had etch fail on me and it’s been over a decade.
Have you ever over hardened clear on engine parts?
did one about 6 years ago epoxy’d it and then single staged it and it still holding out..:compsmash
I have done quite a few engine blocks on moth car and motorcycle. I always epoxy then ss on them. Never had one fail
[quote=”painter123″ post=14915]did one about 6 years ago epoxy’d it and then single staged it and it still holding out..:compsmash[/quote]
[quote=”jim c” post=14916]I have done quite a few engine blocks on moth car and motorcycle. I always epoxy then ss on them. Never had one fail[/quote]
How did you guys prep them? The only thing that has me leaning towards etch is media blasting them isn’t really an option and I don’t trust scotch brite. I would rather epoxy them I’m just worried I might not have bit into the block enough and might want some self etching attributes..
[quote=”ryanbrown999″ post=14914]Tough call. I would say you can’t go wrong with epoxy, but I have never had etch fail on me and it’s been over a decade.
Have you ever over hardened clear on engine parts?[/quote]
can’t say that I have, Probably not going to use BC/CC, rep is looking into some products for me
if you’re worried just etch it then epoxy :kofee
Epoxy then single stage :cheer:
epoxy then SS.
ideally sandblast them after a hot tanking, before machining.
now, I think a good rough scotchbriteing, and possibly a wire brush in the nooks and crannies, then rely on epoxy’s incredible adhesion. I love the stuff.
Good post, I was about to ask the same thing. Didn’t even have to use the search button! LOL
Just wondering, you guys keep saying SS??? Does the BB/CC not hold up on the high heat of the engine?
Another question, do you need special paint for the engine?
Jinx,I epoxy bc/cc many times, motors and trans seems to hold-up good some have been done for years.
You don’t need special paint.Use same paint to match car.[IMG]http://i784.photobucket.com/albums/yy127/jonent/53%20stude/Pics%20for%20site/Browns30modelahotrod007.jpg[/IMG]
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