 Disasembling tacho
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Joined: Mar 2007
Posts: 144
Adjunct
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OP
Adjunct
Joined: Mar 2007
Posts: 144 |
The tacho on my 2003 Speedmaster has accumulated some moisture inside it which has left a film on the inside of the lens. Has anybody pulled one of these apart or are they a sealed unit. I would like to clean it. 
Phil C
If you dont believe there's a price for this sweet paradise
Remind me to show you the scars...
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Re: Disasembling tacho
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Joined: Feb 2007
Posts: 23,220 Likes: 61
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,220 Likes: 61 |
If I remember correctly they are sealed.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Disasembling tacho
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Joined: Sep 2006
Posts: 99
Member
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Member
Joined: Sep 2006
Posts: 99 |
sometimes using a hair dryer or a heat gun will evaporate the moisture, its worth a try----cliff
red and black 2003 speedmaster, AI removed, unifilter, airbox mod, khromewerks pipes, 18t, 135 mains
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Re: Disasembling tacho
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Joined: Jan 2005
Posts: 3,611 Likes: 1
Loquacious
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Loquacious
Joined: Jan 2005
Posts: 3,611 Likes: 1 |
Mine has had a haze since it got it with 1000mi, I just live with it, never gets any better or worse. Let us know if you come up with something.
Stewart
.......
"It's outside your field of expertise."
"Poppycock normally is."
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Re: Disasembling tacho
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
If you can find a friend with a convection oven (the table top kind) you can set the thermostat at 140 degrees and bake it for 3 or 4 hours. If you'll let it cool for the same amount of time still in the oven that ought to do it. You will probably have to use a candy thermometer to get the temp correct because 140 degress will still be in the "low" range prior to the inaccurate silk screen markings on the temp dial.
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Disasembling tacho
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Joined: Apr 2007
Posts: 495
Adjunct
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Adjunct
Joined: Apr 2007
Posts: 495 |
And then you can invite us over for coffee and tachometer!
Pedal Till You Puke
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Re: Disasembling tacho
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Joined: Mar 2007
Posts: 144
Adjunct
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OP
Adjunct
Joined: Mar 2007
Posts: 144 |
I`d love to but there is a lot of ocean between me and you. CHEERS! 
Phil C
If you dont believe there's a price for this sweet paradise
Remind me to show you the scars...
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Re: Disasembling tacho
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Joined: Jan 2005
Posts: 2,416
Oil Expert
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Oil Expert
Joined: Jan 2005
Posts: 2,416 |
Quote:
And then you can invite us over for coffee and tachometer!
"Wise men speak because they have something to say, fools because they have to say something."
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Re: Disasembling tacho
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Joined: Jan 2005
Posts: 1,204
Learned Hand
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Learned Hand
Joined: Jan 2005
Posts: 1,204 |
you can remove a plate in the back. Then use a hair dryer to evaporate the moisture......ANGELIS
1200CC BIG BORE, W/WISECO PISTONS,.250 STROKED CRANK, PORTED/POLISHED HEADS AND LARGER VALVES, CUSTOM WELDED EXHUAST, DUAL 42MM MIKUNI CARBS.
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Re: Disasembling tacho
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Joined: May 2007
Posts: 6,432 Likes: 1
Worn Saddle
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Worn Saddle
Joined: May 2007
Posts: 6,432 Likes: 1 |
Or, if you're want to have a real go at it you can do this: tach repair
A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort. Herm Albright (1876 - 1944)
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Re: Disasembling tacho
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Joined: Apr 2007
Posts: 3,063 Likes: 8
Loquacious
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Loquacious
Joined: Apr 2007
Posts: 3,063 Likes: 8 |
If the tach is sealed, you will somehow have to open it up,(backplate removed like Angelis suggested) in order to rid yourself of the moisture, other wise heating it up will evaporate it, then it will condense again when it cools down. If you can open the tach up, then heat then try to fill the tach with nitrogen you might completely fix your problem. I have removed moisture from headlight bezels on cars this way, then filled the bezel with nitrogen and the moisture doesn't usually return. If you don't have access to nitrogen locally, purchase a whip cream maker that uses nitrogen cartriges as a propellant, pressurize the empty dispenser and fill your item with nitrogen.
12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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Re: Disasembling tacho
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Joined: May 2007
Posts: 5,068 Likes: 1
Saddle Sore
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Saddle Sore
Joined: May 2007
Posts: 5,068 Likes: 1 |
Wonder if you could pop a little dessicant pack in there ? 
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Re: Disasembling tacho
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Joined: Jan 2005
Posts: 7,630 Likes: 7
Monkey Butt
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Monkey Butt
Joined: Jan 2005
Posts: 7,630 Likes: 7 |
There is a hole in the back for the light. I've not had problems with condensation but if I did the first thing I'd try would be to remove the tach, pull the light out and set the tach in the sun upside down. The nitrogen idea sounds good too.
We all like to think of ourselves as rugged individualists. But when push comes to shove most of us are sheep who do what we are told. Worst of all, a lot of us become unpaid agents of whoever is controlling the agenda by enforcing the current dogma on the few rugged individualists who actually exist.
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Re: Disasembling tacho
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Joined: Dec 2006
Posts: 220
Adjunct
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Adjunct
Joined: Dec 2006
Posts: 220 |
Mine has a slight smudge inside on the glass. Would love to clean it up.
Gerry
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