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Damaged 1974 Mustang 17 |
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8122pbrainard 
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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 Posted: June-11-2019 at 9:36pm |
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Yes, the prop end was cut 1" bringing the length down to 5" as mentioned. I pressed the cutlass in after the cut. I used a traditional 4" long brass/rubber cutlass.
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Joe Calcagno
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Joined: November-11-2007 Location: United States Status: Offline Points: 38 |
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Posted: June-11-2019 at 9:40pm |
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Great advice. I'll probably do the same as soon as I get tired of looking for a 6A.
Thank you again, Joe |
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MrMcD
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Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3778 |
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Posted: June-11-2019 at 10:03pm |
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Having the prop shaft look straight is not the same as being straight.
To check you mount the shaft in V blocks and rotate it while checking with a dial indicator to verify straight. Pete can give you exact numbers but I think it has to be within .003 of straight to avoid issues. Your eye will not see a shaft that has a .015 bend but the V blocks and a dial indiator will find it. I have a thin cut off blade for my 4" angle grinder. It makes short work cutting through things like the strut you may need to modify. I have cut thick steel with it so a brass strut should be no problem. |
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Joe Calcagno
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Joined: November-11-2007 Location: United States Status: Offline Points: 38 |
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Posted: June-11-2019 at 10:07pm |
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Thank you, "V" blocks it is.
I'll set it up and measure the runout. Thanks again, Joe |
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21198 |
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Posted: June-11-2019 at 10:53pm |
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I may have a 6a... give me a few days and I’ll try to put my hands on it.
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Joe Calcagno
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Joined: November-11-2007 Location: United States Status: Offline Points: 38 |
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Posted: June-11-2019 at 11:01pm |
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That sounds interesting. I'm told that my strut is damaged beyond repair, so I will need another.
Let me know as soon as you can. Thanks, Joe |
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: June-11-2019 at 11:21pm |
Joe, Mark is correct with the .003". But, besides the middle of the shaft, get a reading aft of the strut. It's a common place for shafts to bend. Set the shaft in the V blocks one up around the coupling and the other were the cutlass runs. Then dial the aft end of the taper looking for the max of .003. |
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Joe Calcagno
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Joined: November-11-2007 Location: United States Status: Offline Points: 38 |
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Posted: June-12-2019 at 1:26am |
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Great idea, I'll do it.
Thanks, Joe |
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zwoobah
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Joined: September-13-2018 Location: Providence RI Status: Offline Points: 308 |
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Posted: June-19-2019 at 9:15pm |
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Joe - was browsing Bring a Trailer today and came across your name. This '62 looks beautiful. Hope you're making good progress with the boat
https://bringatrailer.com/listing/1962-chevrolet-corvette-29/ |
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1968 Mustang 16 - 351W powered
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MrMcD wrote: