Technical > Matt Shaff's Engine Shop
Gear drive harmonics
George:
No problems until the gear drive was installed. A call to Dononvan tomorrow might help us get squared away on the backlash. It's not in their installation information.
dreracecar:
Donovan are fixed gear and the backlash is what it is, no adjustment.
Paul New:
you can adjust the backlash I remember doing this years ago. I just did a little Google action and found some Milodon gear drive instructions.
http://www.milodon.com/instructions/gear-drive-13600-thru-14600.pdf
George:
--- Quote from: Paul New on August 03, 2015, 09:10:42 PM ---you can adjust the backlash I remember doing this years ago. I just did a little Google action and found some Milodon gear drive instructions.
http://www.milodon.com/instructions/gear-drive-13600-thru-14600.pdf
--- End quote ---
Thanks Paul. Appreciate the help. George
dreracecar:
Paul-- its not a Milodon, it is a Donovan and the idler is fixed (thats what needs to be moved to adjust backlash) the cam gear is fixed and the crank gear is fixed so there is no adjustment one can do unless they move the timing cover itself or make +1 or -1 cam/crank gears.
Friends with everybody over at Donovans and worked there awhile ago, never a fan of their geardrives unless it was for a 392/417. always ran a Summers geardrive on my Chevy because it was a little more user friendly and every sprintcar in the country uses them.
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