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Yamaha 70 Short Shaft Parts http://hpbc.ca/viewtopic.php?f=19&t=3672 |
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Author: | Hounddog [ May 26th, 2018, 12:24 pm ] |
Post subject: | Re: Yamaha 70 Short Shaft Parts |
mattmak wrote: I managed to find a real 6J2 driveshaft. It is longer than the short 663 driveshaft pictured above by approx 18 to 20mm. Matt, first off I want to thank you for posting the yamaha parts on this thread and for helping me locate a motor base plate for my twin cylinder yamaha. I have been trying to put together a twin short shaft for years after I purchased a NOS power head. I didn't know at that time there were several versions of that power head and my power head was only produced for a year or two. Parts were almost impossible to locate let alone purchase. THE DRIVE SHAFT ISSUE I never had a 15 inch twin drive shaft or complete lower unit. I only had complete 6J2 lower units. Two years ago I was ready to mount the motor. It would not mount! Drive shaft was too long. The 6J2 drive shaft will only work on the 70 hp. The two cylinder drive shaft will work on both. There is enough spline on the twin for the 70 hp. I got a new twin cylinder drive shaft from a Canadian dealer using the part number you posted. I now have a complete twin 15 inch lower unit. As for the difference between a 6J2 gear case casting and the twin. Only a minor difference. You can make the alteration very easy. |
Author: | mattmak [ January 21st, 2019, 5:31 pm ] |
Post subject: | Re: Yamaha 70 Short Shaft Parts |
Related to this short shaft project, I cut a couple 22.5" driveshafts down to 15" for the 2Cyl. Got them back today from True Gear today who cut the splines. The slightly longer fresh one here is a factory 6J2 (70CES) shaft. |
Author: | Hounddog [ December 21st, 2019, 2:56 pm ] |
Post subject: | Re: Yamaha 70 Short Shaft Parts |
JUST AN UPDATE ON THE 70 HP SHORT SHAFT PARTS AVAILABILITY . ALL OF THE 70B CANADIAN MODEL SHORT SHAFT PARTS ARE STILL AVAILABLE . https://www.megazip.net/zapchasti-dlya- ... g-13522521 NOT MANY 70 6J2 PARTS are AVAILABLE https://www.crowleymarine.com/yp/I1HPDM ... -70ce-1990 |
Author: | mattmak [ December 21st, 2019, 4:10 pm ] |
Post subject: | Re: Yamaha 70 Short Shaft Parts |
Has anyone every tried a HydroTec cylinder head? For the 70hp, or for any of the Yamaha 3cyls? |
Author: | Roflhat [ January 8th, 2020, 8:33 am ] |
Post subject: | Re: Yamaha 70 Short Shaft Parts |
mattmak wrote: Has anyone every tried a HydroTec cylinder head? For the 70hp, or for any of the Yamaha 3cyls? Seemingly it's just a copy of the 2 piece 70ces head. There's a couple of billet heads available too, a company in the states makes one and also TSR in Australia, tried the TSR one and it didn't work well |
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