Buzz68 Posted January 15, 2022 Share Posted January 15, 2022 Can anyone tell me the rotation and what side the time adjust arm be on Thanks Link to comment Share on other sites More sharing options...
edinmass Posted January 15, 2022 Share Posted January 15, 2022 You need to look at the points to determine rotation, and it’s easily reversed. Link to comment Share on other sites More sharing options...
Buzz68 Posted January 15, 2022 Author Share Posted January 15, 2022 Yes but don't have the car home yet And know it's going to need a mag And since took several months get a mag rebuilt just thought I get that started Link to comment Share on other sites More sharing options...
edinmass Posted January 15, 2022 Share Posted January 15, 2022 (edited) I guess I would ask for photos and info of someone who has an identical Buick. It’s gonna be faster and easier to just buy one off the shelf from the rebuilders........most of them are six months out or longer on service. Since you need the most common magneto in the world...........it’s really just a matter of writing the check. Working used units may appear as a good value.......but unrestored units often develop condenser issues when they get hot for the first time in fifty years. Since most units are well over 80 years old........the true value is buying one rebuilt already and concentrate on other parts of the car. Rudy at Rebuiltmags.com has a fast turn around service for 45 dollars more. He overhauled my bad DU4 and got it back to me in less than 12 days. I requested he NOT do a cosmetic restoration because my car was a preservation class vehicle. Worked out great. He has a nice web page. The other two guys in the northeast also have excellent reputations.......Maine and Connecticut shops. I used Rudy because I was in a hurry. Give Rudy a call.....he probably has a good core on the shelf available for sale. Edited January 15, 2022 by edinmass (see edit history) 1 Link to comment Share on other sites More sharing options...
Brian_Heil Posted January 15, 2022 Share Posted January 15, 2022 (edited) Three gears inside the engine front cover From standing in front of car Engine rotates clockwise so Cam gear then runs counter clockwise and then Waterpump shaft and mag drive gear run clockwise So looking at the input shaft of the mag it rotates clockwise. But looking from the back where the points are it would be counter clockwise Correction. The Model 10 has 4 gears. See comments below. Edited January 16, 2022 by Brian_Heil (see edit history) 1 Link to comment Share on other sites More sharing options...
Layden B Posted January 15, 2022 Share Posted January 15, 2022 Link to comment Share on other sites More sharing options...
trimacar Posted January 15, 2022 Share Posted January 15, 2022 (edited) That sounds correct, clockwise if three gears on the Model 10. The Model 16 and 17 has four gears, so uses a counter clockwise rotation. Yes, easy to change rotation on a Bosch mag, IF you have the parts to do it. By the way, the Buick accessory catalog used by dealers for parts in 1910 offered the Bosch magneto as a replacement for the Remy system, so some people didn’t like the Remy to start with! Edited January 15, 2022 by trimacar (see edit history) 1 Link to comment Share on other sites More sharing options...
Buzz68 Posted January 16, 2022 Author Share Posted January 16, 2022 Count 4 gears Crank gear cam gear ( missing) some kind of idler gear and the mag gear 1 Link to comment Share on other sites More sharing options...
edinmass Posted January 16, 2022 Share Posted January 16, 2022 Looks like we will have to wait a few weeks for a ride.........👍👍 1 Link to comment Share on other sites More sharing options...
trimacar Posted January 16, 2022 Share Posted January 16, 2022 7 hours ago, Buzz68 said: Count 4 gears That's going to mean a counterclockwise magneto, a little trickier to find, but any mag repair guy can change it... Link to comment Share on other sites More sharing options...
Brian_Heil Posted January 16, 2022 Share Posted January 16, 2022 Agree. But you understand the geometry lesson now. Link to comment Share on other sites More sharing options...
Buzz68 Posted January 16, 2022 Author Share Posted January 16, 2022 Just received that picture showing the front gears car not home yet I had read some engines mag drove though 4 gears and some with 3 Link to comment Share on other sites More sharing options...
Brian_Heil Posted January 17, 2022 Share Posted January 17, 2022 I have a 1911 Model 33 with the 165 cu in engine and it has 3 gears. Link to comment Share on other sites More sharing options...
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