Wildguzzi.com
General Category => General Discussion => Topic started by: YellowDuck on May 31, 2025, 11:39:43 AM
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Just did my first valve adjustment on my 23 V7 (too easy!). Looking at the layout, I was thinking that there was no reason why it couldn't be a 4-V design - you'd just have to move the tappet adjusters to the tops of the valve stems instead of the tops of the pushrods.
In the only 4-V Guzzi head I've read about so far (V11), they did exactly that, but they also moved the camshaft up into the head (so, two of them) and used little tiny pushrods. Which of course then necessitated timing belts and such.
What do you think was the reason for that? More accurate timing with shorter pushrods? Simpler to adjust timing with belts and pullies?
Was there ever a 4-V Guzzi with the camshaft in the normal spot? Has there ever been a true OHC Guzzi motor?
Just curious. Really enjoying learning about these lovely motors.
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Cost
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The v11 never had a 4v, your thinking of the second gen Griso and Norge mills.
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The v11 never had a 4v, your thinking of the second gen Griso and Norge mills.
Oops - thanks for the correction. Learning has occurred.
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Like the LS Chevies and Mopar Hemis the cam was moved higher up in the blocks for shorter push rods allowing higher rpm. That resulted in the Chevy and Hemi tick from inadequate oiling from extended idling, cop cars etc. The 6
4 Hemis have higher flow oil pumps solving the problem, hope so as we have one. :laugh:
kk