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View Full Version : MIrror Thumb Screw


bturner2
05-09-2013, 09:36 AM
I installed a PTM Edge mirror as part of my spring upgrades and noticed that the tower arm had some movement to it which caused the MCOCD to go nuts in me. I started to take the easy route and tried to tighten the thumb screw which did nothing to stabilize the arm. Moving on I decided to remove the thumb screw to see is something else had worm. What I ended up with was the thumbscrew button in my hand and the threaded portion still in the mirror bracket. This is the first time I've tried to removed the thumb screw and can't remember if the threaded portion should have came out with the button. I can't see a way to remove the mirror arm without that threaded rod coming out. Am I missing something here? Has anyone else experienced this?

My thought is that galling has taken place between the SS threaded rod and the aluminum bracket. If this is the case has anyone come up with a way to get that threaded rod out? If this is not the case how are you supposed to remove the arm?

I'm usually pretty good with this stuff but I may not be seeing the forest for the trees on this one and thought I'd see what others knew first before jumping in with vise grips and die grinders.......

MattsCraft
05-09-2013, 10:03 AM
Get 2 nuts, thread the first on, then the second, you can then wrench it out using the first nut. Common problem on those knobs including the tower. After you get it out, put some red lock-tight on the threaded knob end. Also, helps to lift a bit on the mirror arm, the length of it puts some stress on the threads.

MattsCraft
05-09-2013, 11:38 PM
Get 2 nuts, thread the first on, then the second, you can then wrench it out using the first nut. Common problem on those knobs including the tower. After you get it out, put some red lock-tight on the threaded knob end. Also, helps to lift a bit on the mirror arm, the length of it puts some stress on the threads.

Bump - did it work?

bturner2
05-10-2013, 08:53 AM
Haven't been able to get back to the boat yet. It'll probably be the weekend if I'm lucky. Between the rain and the Hallmark holiday I may even get shut out this weekend. Just knowing the treaded portion was supposed to come out with the knob will get me started in the right direction. Hopefully I'll have a couple nuts that will fit and I'll be able to get this done quickly.

I had about four items to repair from my first shake down. I got those all done the last time I was out. Now I just need to get this one done and I should be looking pretty good for the season.

JRW160
05-10-2013, 11:45 AM
I have some trouble with my ptm edge vibrating due to some play there the mirror arm disconnects from the tower mount. I put a couple of pieces of rubber shelf liner in there and it seemed to help for a little while, but the vibration is back. I need to find something to fix it.

bturner2
05-10-2013, 04:03 PM
Yep same here. I'm going to go with urethane windshield bedding in that joint as soon as I'm able to get the stud out. The stuff comes in rolls and is used between the windshield and the frame. I'm thinking it should dampen an vibrations while eliminating and play in that joint. I just need to make time to get to the boat and get to it.

Thrall
05-13-2013, 09:59 PM
Mine did the same.
I just loctited the thumb screw back on and removed it the following day.
It held for over a year but now I haven't had the mirror off in a cpl years.
Once you get it apart, loctite the pins in too. Those tend to fall out at in opportune times

bturner2
05-14-2013, 08:16 AM
Still haven't made it back to the boat. The weekend sucked. Temp fell off to the 30s at night and low 50s during the day with high winds and showers popping up. If the weather holds we're supposed to try again tomorrow. I'm going to try to get out there early and take a crack at it again. This has been a pretty lame spring for us so far.

davidstan
05-14-2013, 08:43 AM
Same thing happened to my knob. Will try the locktite route. Thought it was just me. :confused:

Ironhorse
05-14-2013, 09:07 AM
I took mine to a machine shop and had them drill from inside the clamp that mounts to the tower. They then threaded the arm portion and put in a large bolt that cannot be seen. This was the only way I could stop it from vibrating.

bturner2
05-16-2013, 01:44 PM
Got out to the boat yesterday and was lucky enough to have two nuts of the correct thread to use to pull the threaded rod out. Worked like a champ. Put anti seize on the thread going into the aluminum and red Loctite on the thread going into the knob. Tried shimming the pin but the mount still wiggles. The MCOCD is kicking in on this but I can't seem to see a resolution that doesn't involve eliminating that joint.

Well at least I got everything back together.

Sodar
05-16-2013, 02:10 PM
Does your mirror have the two plastic "sleeves" that go in the hole where the two unthreaded studs go? That takes all the slop out. Let me see if I can find a pic.

bturner2
05-16-2013, 10:10 PM
When I pulled it apart I only saw one stud. Didn't notice a sleeve. I'll look when I get back to the boat. Everything should come apart easy now.

Sodar
05-16-2013, 11:19 PM
I am missing one, but this is what I am talking about...

95092

95093

CantRepeat
05-17-2013, 10:14 AM
I lost one too. Order 6 from Lex and when I put them back in I mix a little epoxy and dabbed a dot on the flat part before I put the sleeves in. So far it has held and I've not lost anymore of them.

2010Prostar197
05-17-2013, 10:31 AM
What place is Lex???

I have been looking for a spare also.

I just use medical tape taped over the area while the mirror is off to keep them from falling out

CantRepeat
05-17-2013, 10:35 AM
What place is Lex???

I have been looking for a spare also.

I just use medical tape taped over the area while the mirror is off to keep them from falling out


Sorry, Lex @ Rambo marine.

bturner2
05-17-2013, 04:49 PM
Wow I need to look at my mirror again. I'll take some pictures. I only saw one pin and no collar. Should my 07 mirror look like yours? If so that explains a lot.

Sodar
05-17-2013, 05:40 PM
Mine is an '07.... it should look the same, but who knows.

davidstan
05-19-2013, 09:26 AM
Same thing happened to my knob. Will try the locktite route. Thought it was just me. :confused:

Tried the dab of locktite and it worked! Thx for the advice TT as usual a solution found on this site :D

bturner2
05-19-2013, 03:42 PM
Well that splains a lot.... Turns out I'm missing one of the pins and the collar. Are both of these something I can pick up at my dealer or am I about to start on a journey looking for parts or SS round bar to make my own pin with?

bturner2
05-19-2013, 03:54 PM
Opps, the second question I should have asked is if this isn't a dealer item (and maybe even if it is) does anyone have the diameter of the pin. It may be worth picking up a foot or two of some SS round bar and cut some pins up. I'm sure other will need them later too,

bturner2
05-21-2013, 08:36 AM
OK now that I've determined that the post is gone (most likely my fault although I think a pressed post should stay pressed if done correctly) I decided to try and track one down. At the suggestion of my dealer I called MasterCraft By Design to see if they could help me out as they make many of the billet parts on our boats. I know we've had mixed results with them on shirts and shipping charges but I have to say that I had a rather excellent experience with them yesterday.

I called using the service 800 number and quickly got a hold of Kevin in the service area. He said he might be able to help me out and requested a picture of what I was looking for. I sent him the picture and he called the plant where they make the parts while I waited on the other line. He then informed me that they would ship one out to me with the plastic sleeve for $13 including shipping. While that sounds like a lot for just that pin and sleeve I'm happy it was that easy to get and will be thrilled to have it for that kind of money. You can bet the replacement will be going in with red locktite this time.