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cleaning block tips (HG repair)
by
rubadubdub
on 09 Mar, 2008 16:58
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Any tips on cleaning the block when doing HG repair?
I searched previously and found suggestions to use a stanley knife blade, which i did.
Problem is although it feels smooth (blade does not catch at all when running across the surface) there are clearly still marks visible on the surface from the previous gasket. A passer-by who stopped to talk to me said i should definately use some 1000 grit wet and dry on it to remove them.
Is it a good idea to clean the block with wet and dry? Or am i worrying about nothing as you would you expect to still see gasket marks even after cleaning?
Also, any tips on removing the bell housing viewer without a massive hexagon bit?
Thanks
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#1
by
burn_your_money
on 09 Mar, 2008 20:10
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A wire wheel works fine, just stuff rags into the bores. Sandpaper works fine too but takes longer. Don't use a wire wheel on the head though... just in case that's not obvious
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#2
by
Vincent Waldon
on 09 Mar, 2008 20:20
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I use 800 or 1000 grit sandpaper on a very firm sanding block and oil it down.
I also don't get carried away. IMHO you want really smooth... which is different from "brand new metal everywhere, no trace of the original gasket".
The gasket is reasonably forgiving !
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#3
by
rubadubdub
on 10 Mar, 2008 14:39
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cheers guys. Dont have a wire wheel so 1000 grit and elbow grease it is. The head has been milled flat so i wont be going anywhere near it.
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#4
by
somolovitch3
on 11 Mar, 2008 04:21
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Find bolt with correct size head, or use cir-clip pliers spread to catch the corrners, long nose pliers? :twisted:
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#5
by
the caveman
on 11 Mar, 2008 04:28
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i use a medium pair of waterpump or channel lock pliers. I also think the wheel bolt/ generator socket tool that came with air-cooled beetles fit.
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#6
by
Turbinepowered
on 08 Apr, 2008 00:20
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I use 800 or 1000 grit sandpaper on a very firm sanding block and oil it down.
I also don't get carried away. IMHO you want really smooth... which is different from "brand new metal everywhere, no trace of the original gasket".
The gasket is reasonably forgiving !
Would 660 grit still work? I already have the 660, I'd have to go buy anything finer...
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#7
by
Vincent Waldon
on 08 Apr, 2008 09:29
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I use 800 or 1000 grit sandpaper on a very firm sanding block and oil it down.
I also don't get carried away. IMHO you want really smooth... which is different from "brand new metal everywhere, no trace of the original gasket".
The gasket is reasonably forgiving !
Would 660 grit still work? I already have the 660, I'd have to go buy anything finer...
I'd think so... not that much different between that and the 800 I have lying around... the trick, imho, is to not get carried away and dig in grooves.
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#8
by
oldskool rich
on 08 Apr, 2008 16:19
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thort you put the head back on mate.
i hav a wire wheel if you want to borrow it.
dont suppose your cumin to spring festival this weekend?
im dragging the caddy :lol:
what hav you got left to do to yours?
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#9
by
myke_w
on 08 Apr, 2008 21:52
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I use a green scotchbrite wheel on a 90 degree die grinder and that works great, cleans it up in a hell of a hurry -> takes about a minute. (ditto, don't get near the head with it)
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#10
by
Turbinepowered
on 09 Apr, 2008 11:26
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And to clean the head? A light oiling and a gentle light dash with the fine-grit paper?
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#11
by
burn_your_money
on 09 Apr, 2008 11:34
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I use WD40 and 1000 grit sandpaper on a smooth, flat wooden block. Cam removed is preferred. You have to let the head drain upright for a while because the precups fill with all the removed carbon and crap.
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#12
by
Turbinepowered
on 09 Apr, 2008 12:15
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I use WD40 and 1000 grit sandpaper on a smooth, flat wooden block. Cam removed is preferred. You have to let the head drain upright for a while because the precups fill with all the removed carbon and crap.
Cool deal. What kind of shop are you getting 1k grit paper from? Most of the local places are woodworking oriented, and only carry grits up to 660. Even 660 is a bit hard to find at times.
Automotive paint supply shops?
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#13
by
Baselyne
on 09 Apr, 2008 12:55
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get the wet sand stuff... they carry up to 2000 at canadian tire, I beleave it's black
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#14
by
Possum79
on 09 Apr, 2008 13:30
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I got 2k grit from like Kmart or Walmart. Its pretty much all over the place. Usually it automotive and not paint areas though.