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CTdeathfrombelow
MMT Member
Joined: Sun Jun 12, 2011 1:55 pm Posts: 24 Location: Connecticut
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 Shaft alignment
just finished putting the shaft on my 27GDLT 6ft. I am now trying to install my prop. However the shaft does not line up in the lower seal hub, even though its centered in the shaft housing. I ran it for a few secs and saw smoke and coming out of the end. What could be the problem if there is one and how do I fix it? Any and all info greatly appreciated!
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Mon Dec 05, 2011 7:45 pm |
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swamprat26
MMT F.E.
Joined: Fri Jul 31, 2009 5:01 pm Posts: 757
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 Shaft alignment
Is the tube bent?
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Mon Dec 05, 2011 8:02 pm |
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CTdeathfrombelow
MMT Member
Joined: Sun Jun 12, 2011 1:55 pm Posts: 24 Location: Connecticut
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 Re: Shaft alignment
I'm pretty sure it's not seeing as the shaft is centered in the tube, not the seal housing
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Mon Dec 05, 2011 8:09 pm |
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brianb
MMT Addict
Joined: Mon Nov 29, 2010 6:02 pm Posts: 534 Location: louisiana
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 Re: Shaft alignment
May sound stupid , but do you have bushings in the tube, didn't look like it from the picture, but I was viewing it on my phone, also when you ran it and it and saw smoke did you have grease in the tube
_________________ gtr35 gt 1854 / w gatorglide 12 ft 11hp longtail 14 ft 10 hp longtail Merc 225hp TR20
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Mon Dec 05, 2011 10:00 pm |
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CTdeathfrombelow
MMT Member
Joined: Sun Jun 12, 2011 1:55 pm Posts: 24 Location: Connecticut
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 Re: Shaft alignment
All seals and bushings are in (not loose either) and shaft is fully greased
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Mon Dec 05, 2011 10:19 pm |
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bayoumonster
MMT Member
Joined: Mon Oct 31, 2011 8:26 pm Posts: 27
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 Re: Shaft alignment
I'm no expert but thought I might have an idea. If your hub is threaded onto the tube, it may be crossthreaded or otherwise misaligned (bent as stated?). There's no other explanation if it's centered in the tube and not the hub. It has to be a hub that's been been/stripped, or a crossthreaded hub. Just my guess, JBJ
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Tue Dec 06, 2011 9:44 am |
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swamprat26
MMT F.E.
Joined: Fri Jul 31, 2009 5:01 pm Posts: 757
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 Shaft alignment
Put a straight edge on the tube and rule that out.
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Tue Dec 06, 2011 12:13 pm |
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garjacker
MMT Pro Member
Joined: Sat Oct 17, 2009 3:39 pm Posts: 321 Location: greensboro n.c.
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 Re: Shaft alignment
get some .003 -.005" shim stock and run it around the shaft inside the bushing and see where its touching. did you move your motor or the cranside yoke? if you run an old school top bushing i'd say out of alignment. if bearings on the top then bent tube. ive had to put mine on the pipe bender a few times. gd has picture of this procedure in the online manual.
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Tue Dec 06, 2011 4:37 pm |
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indawoods
MMT Pro Member
Joined: Fri Sep 23, 2011 3:32 am Posts: 287
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 Re: Shaft alignment
is your shaft bent? rotate it a few times and see if it wobbles around.
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Tue Dec 06, 2011 10:08 pm |
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mozambiquer
MMT Member
Joined: Wed Nov 23, 2011 8:22 am Posts: 4 Location: CT
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 Re: Shaft alignment
not to confuse the post...let me state that I'm also working on the boat with CTdeathfrombelow...the shaft is brand new. the seal housing isn't sitting right on the shaft housing. aside from replacing the whole shaft housing what other options are there. the only one I've come up with is to bore the the hole in the housing cap. is it possible to rethread the shaft housing while its still attached...forgive the rambling but I'm trying to brainstorm. thanks in advance.
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Wed Dec 07, 2011 9:47 am |
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kibb
MMT 1000 Club
Joined: Wed Jan 14, 2009 8:58 pm Posts: 2731 Location: Lafayette, LA
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 Shaft alignment
Cut everything an inch or so shorter, retread, move cav plate up, and hope everything works out.
_________________ 1644 WeldCraft / 27 GDLT Ranger R71 / 125 Merc
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Wed Dec 07, 2011 12:01 pm |
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garjacker
MMT Pro Member
Joined: Sat Oct 17, 2009 3:39 pm Posts: 321 Location: greensboro n.c.
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 Re: Shaft alignment
you might bet able to get a die on there not sure. is it the left handed thread model or the older model? if its older then get a 1'' npt pipe coupler and try to get it started straight. Then do 1/4 turns and tap the coupler with a 2lb hammer as you are twisting. should get you back right. as for the end cap, just get another one if its ate up. hope this helps..
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Wed Dec 07, 2011 4:36 pm |
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