Diesel q's

[juliemac57 at hotmail.com (Julie Macfarlane)]

Thanks Drew.



Julie Macfarlane
1981 MKI 2L 16v w 2Y
Amsterdam NY
http://www.menloparkrandd.com/scirocco
http://www.menloparkrandd.com/my_rocc





>From: Drew MacPherson <drew@scirocco.cs.uoguelph.ca>
>To: Julie Macfarlane <juliemac57@hotmail.com>
>CC: scirocco-l@scirocco.org
>Subject: Re: Diesel q's
>Date: Sun, 30 May 2004 10:33:13 -0400 (EDT)
>
>On Sun, 30 May 2004, Julie Macfarlane wrote:
>
> > It seems I made your day Drew  :) Now that I have had coffee, the 
>concept
> > remains the same.
> > The idea is to keep the lower block and replace everything else. the 
>head,
> > injectors and fuel pressure system etc.
>
>No... That's not the idea.  The bottom end of the 9A is not built for the
>stresses of diesel operation, and the pistons are definitely not up to the
>chore.  Diesels are always strokers - the fuel is slow burning, so there's
>no point in building a square or undersquare engine, or it will make no
>power at all.
>
> > Is there a head that will fit the 9A? Or is the block just too "soft" to
> > take the bigger and harder injectors?
>
>The injectors go into the head.  You could mount a 1.6 hydraulic head or a
>1.9 head onto the 9A if you were so inclined.  Depending on piston
>projection on the 9A, you may even have the right compression ratio to
>make it work (around 23:1)  If you can accomodate the injection pump and
>drive belt (the intermediate shaft on the 1.6/1.9 IDI diesel turns the
>opposite direction and is run off the back of the timing belt) then you
>may even get the engine to start and run.
>
>But once you load it up, you're going to bust something (ring lands,
>rings...)
>
>Save yourself the grief and get a 1.9.
>
>Drew
>
>--
>
>84 Wolfsburg Ed. Scirocco GTD     http://scirocco.cs.uoguelph.ca/gtd
>89 Audi 200 Turbo Quattro Avant
>94 A3 Golf GL TurboDiesel, 99 A3 Jetta GL TDI
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