Kent Gittings wrote: > Yeah but gears have higher losses > than belts so more HP is lost in gears > that chains and even still more than belts.
That's true > One thing you don't mention is that > racing engines use gears mainly for the > timing precision but they have lower > longevity than belts generally. I mentioned timing accuracy. > Street engines that may go 200K miles before > service get belts both for cost issues, less HP > drain, and longer replacement intervals. Sorry ... Many cars with belt-driven cam shafts require that the belts be replaced at 60,000 miles, or 100,000 miles. The chain on my Mercedes needs replacing at about 100,000 miles. I agree that belts are used for cost issues and because they are lighter and use less power. But those are incidental to the discussion about longevity and overall durability. > Reason Harley went from chain to belt drive > was zero maintenance and less losses. But the belt still has to be replaced at regular intervals. -- Shel Belinkoff mailto:[EMAIL PROTECTED] - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
