Date: Sun, 11 Feb 2001 15:38:10 +0000 From: Johannes H Andersen <johsnopsamsafish.com> Subject: Re: Saab Mechanics: A Hypothetical Question
John & Margaret Strowe wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > I have a hypothetical question regarding the servicing of the new > variable compression ratio engine. > > I grant that the cylinders on a Saab 4 cylinder engine are very hard > and wear very slowly. However, how often do you mechanics have to use > a ridge cutter to remove a piston from a four cylinder engine? > > It seems to me that the one piece head and block of the variable > compression engine would effectively prohibit the use of a ridge > cutter should it be necessary. The wear ridge at the bottom of the > cylinder is generally less sharp than that at the top of the > cylinder, but can you slide a piston out the bottom without damaging > it? > > I'm just wondering if the Saab engineers are creating a mechanical > marval as well as a mechanic's nightmare. > > John > Sine the whole engine blocks is "loose", you might be able to undo the attachment(s) and pull it up vertically, leaving the pistons behind? However, putting the block back on again could be tricky. Heard that the main problem at the moment is noise, I wonder if they have solved it? Johannes
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