Question for BlaBla

#11

Timing belts can last over 100,000 miles, if the manufacturer chooses to
use a high quality belt. When I changed mine at 117,000 miles it was
still in good condition and not showing any signs of cracking or
splitting. I do not believe that timing chains should be trusted past
150,000 miles. Timing belts are far easier to change than chains and
gears, and they permit the use of adjustable timing gears for those that
want to upgrade their cams and fine tune their engines. Obviously I'm
talking about an OHC engine and not a push rod motor. The timing belt
for a push rod motor would be very short! :O

Gyz

marx404 wrote:

Quote:

I hope it isn't THAT ecotec engine! Saturn says it is a "new" engine for
them, could they mean this 1.8 or a new chain driven one?

To answer Hypercube's question, put simply: Most engines yrs ago were belt
driven. Saturn's claim to fame was polymer panels and chains. Belts do have
their benefits though they must be changed at 50K intervals. Belt driven
engines tend to run quieter than most chain driven engines. That's what I
got from Googling and found many engines use belts, even Lexus for quiet
operation and of course manufacturing cost. The only failure I know of with
chains are oil lubrication issues.

Hmm, maybe I'll give another thought into a remaining '07 ION.

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Question for BlaBla

Saturn cars All about Saturn cars, fans and company. (rec.autos.makers.saturn)

Re: Question for BlaBla - 06-05-2007 , 05:33 PM