Mrkim Report This Comment
Date: January 08, 2017 06:45PM
Though this is a somewhat cartoonish rendering of the valve train it does
reveal some cool stuff.
Note there are no lifters or rockers, the cams operate directly upon the valve
Secondly, though it's hard to make out with certainty if the cams are belt or
chain driven, another pic I found of the crank shows a sprocket machined onto
the crank, so yeah, it's a chain. Note how the chain is supported/guided on both
sides of the cams and if you look closely on the left side guide you'll see what
looks like a single hydraulic tensioner which is most likely applying a pre-load
to the chain for tensioning. Note the difference between the rt and lt side
outer chain guides as the rt guide is in a fixed position while the lt side
guide is allowed to pivot.
Then they've obviously again opted for simplicity (and compactness) in having
the exhaust cams being driven off the intake cams via a secondary chain which
looks to have a spreader to maintain proper tension.
Man this stuff really gets me goin
Edited 1 time(s). Last edit at 08/01/2017 06:52PM by Mrkim.