[V8] Engine rebuild options

[Scott DeWitt]

The 40 valvers are alusil also.


---- P Cole <pcolegrps at comcast.net> wrote: 
> On Mon, 25 Aug 2008 19:09:32 +0200 (CEST), Bastian Preindl wrote:
> 
> >4,2 cylinder bores are NiKaSil coated
> 
> AH- NO.  at least for the 32valve engines I'm aware of.
> 
> The information from  the folks that actually cast the blocks( Kolbenschmidt-Pierburg) indicates that ALL 32 valve  
> V8 castings were Alumisil ( alloy AlSi17Cu4Mg ) 
> Links-
>  http://www.kspg-ag.de/index.php?fid=866&lang=3
> 
> Motor-Service home http://www.ms-motor-service.com/content_kataloge.asp?area=hauptmenue&site=katalog&cls=02
> Catalog of KS technical manuals  http://www.ms-motor-service.com/content2.asp?area=hauptmenue&site=technischebroschueren&cls=02
> 
> PDF link on reconditioning ALL alumisil KS blocks
> http://www.ms-motor-service.com/download/prospekte/KS_50003804-02_WEB.pdf
> 
> news article here http://findarticles.com/p/articles/mi_m3012/is_10_183/ai_109505538
> 
> 
> Basically if you have access to a machine shop that has the RIGHT equipment (Sunnen VC-20 for example) refinishing ( even after boring)
> these engines isn't an issue.
> I've rebuilt 2 Porsche 928 engines that use the same ( basically) material- no problems.
> 
> >3,6 cylinder bores are sulfid etched
> >
> >Rebuilding by drilling a PT is no problem, but on a 4,2 you have to recoat
> >(with NiKaSil or whatever).
> >
> >Bastian
> >
> >> Both the 3.6 and the 4.2 cylinder bores are bare aluminium/silicon, and
> >> rebuilding them is not a problem.
> >
> >
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