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  #1  
Old 04-06-2003, 10:29 PM
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is this right?

after tearing apart my head from the block on my b16, the pistons, valves and combustion chamber are as black as night, should all this damn carbon be on this motor from a said 35,000 average use engine from hmotors?

im rebuilding the whole shit anyway, but if i didnt, this cant be good for anything?


PS - anyone know of a good cleaner to make this all shiney again?

ill post pics soon.
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  #2  
Old 04-06-2003, 10:33 PM
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Thousands of explosions have gone off inside it, what do you expect.
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  #3  
Old 04-06-2003, 10:35 PM
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i pulled a motor apart with only 35,000 miles on it, and the insides where really black. i used this thing called oil eaters, it got it pretty clean, like the aluminum got clean but the bottom of the valves and the piston got alittle cleaner but not all like shiny or anything, it was still like a brown color after. i guess it was like burnt on there or something.

well its natural for it to turn that color, so taht just how it comes out after
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Old 04-06-2003, 10:36 PM
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a cheap way to clean it is to soak it in diesel fuel. an expensive way is to get it glassbeaded
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Old 04-06-2003, 10:37 PM
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Yes totally normal for it to look that way.
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  #6  
Old 04-06-2003, 10:45 PM
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ok just making sure, cuz even when i pulled apart those 100K engines at my school none of em looked like this, im changing all the parts anyway, so i really just wanna get that head cleaned up, so no preignition or detonation might occur.

thanks guys, where can i get that oil eaters shit from?
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Old 04-06-2003, 10:46 PM
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i got that from costco
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Old 04-06-2003, 10:48 PM
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Clean the pistons up on a wire wheel grinder.....send the head to a machine shop tp get it pressure checked and degreased....ring it and all new gaskets and you should be ok.......


gunnmen01
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Old 04-07-2003, 11:01 AM
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A can of brake cleaner works pretty good too for cleaning that stuff up....a nice soft wire wheel that won't scratch the finish is prolly the best...that is what we used to get all the deposits off the valves/stems and shit..
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Old 04-07-2003, 01:51 PM
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Dont believe any shops that says the engines have 35,000 miles on it. When i got my b16 they said 35-50,ooo miles on it but i think it has more.
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Old 04-07-2003, 02:12 PM
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dont clean the carbon off the tops of the pistons....more compression
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  #12  
Old 04-07-2003, 07:42 PM
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Quote:
Originally posted by Fishcat37
dont clean the carbon off the tops of the pistons....more compression
i figured the 12.5-13:1 compression was already too high.

i took some castrol super clean to, and it started coming off with some scrubing.
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1991 Honda CRX
1990 Oldsmobile Cutlass Supreme
2003 Honda Accord
1998 Chrysler Concorde
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1995 Saturn SC2
1996 Ford Taurus
1991 GMC Sierra
2002 Daewoo Leganza
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  #13  
Old 04-07-2003, 08:34 PM
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Anyone know how much a shop usually charges for a valve job and a general disassembly and cleanup. I just pulled my GSRs head with about 120k on it. I have the valve jobs, but I'm wondering how much this gonna cost me.

-Tim
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  #14  
Old 04-07-2003, 09:05 PM
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prolly a grand for everything
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Stable Of Cars I have Owned:
1991 Honda CRX
1990 Oldsmobile Cutlass Supreme
2003 Honda Accord
1998 Chrysler Concorde
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1997 Toyota Camry
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1996 Ford Taurus
1991 GMC Sierra
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