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Author Topic: Tach not working at Idle but works above 1200 RPMs  (Read 1051 times)

August 21, 2013, 09:24:02 AM
Reply #15

Capt. Bob

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #15 on: August 21, 2013, 09:24:02 AM »
Good deal Bruce (except for the cost). :|

If memory serves, loose magnets were a known issue on the later 90s Jonnyrudes.
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Capt. Bob
1991 210 Walkaround
2018 Yamaha 150 4 Stroke
"Reef or Madness IV"

August 26, 2013, 02:08:25 PM
Reply #16

Bergertime

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #16 on: August 26, 2013, 02:08:25 PM »
Thanks.. Broke down on the water (sheared Woodruff Key) yesterday 100 yds from my fav. watering hole (Hula Bay).   Not sure if my prior flywheel service was a contributor but my mechanic fixed it at no cost this morning after I dropped it off to him.  

Thanks to a couple guys in a Donzi with Merc twins that happened upon me and my GF right after I shut the motor down the incident was fairly painless.  They offered a tow to the Gandy boat ramp which made it easy to retrieve my boat.  I can't remember their names (distracted with the thought very ugly noise coming from my motor) but both guys were very nice and the owner of the boat was Coast Guard Auxiliary. Anyway, with my craft towed by attachment to the port side he docked me on the outside dock with extreme precision..  I am very grateful for their help.  Pay it forward my friends..

B
98 245 Osprey / Johnson 225

August 26, 2013, 04:52:48 PM
Reply #17

seabob4

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #17 on: August 26, 2013, 04:52:48 PM »
Hula Bay?  High and Dry on Tyson?  Know it well.  You can hit Fernando's house (and his 19-6) with a rock from there...but don't, he'd be pissed.  Besides, his boat's at my house... :lol:


Corner of 520 and A1A...

August 27, 2013, 09:04:45 AM
Reply #18

Bergertime

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #18 on: August 27, 2013, 09:04:45 AM »
That's funny!..  The un-godly noise that my motor was making had me fearing a rebuild or re-power so I could have used a drink or two or three.  I was so close to Hula Bay I considered taking a swim for it after I dropped my anchor!  My GF didn't like that plan so the tow was the end of our day on the water..  Went out last night (testing her out) and ran into Tampa for dinner.  Run's like a top now (fingers crossed).

I did not know that Fernando lived that close... We all should get together on the water or at Hula Bay.  Love that place on Sunday!

B
98 245 Osprey / Johnson 225

August 27, 2013, 11:48:33 AM
Reply #19

seabob4

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #19 on: August 27, 2013, 11:48:33 AM »
Yeah, he lives off Westshore, couple blocks N of Tyson...


Corner of 520 and A1A...

August 27, 2013, 12:07:46 PM
Reply #20

Georgie

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #20 on: August 27, 2013, 12:07:46 PM »
B-

Just curious, but who re-installed the flywheel after the magnet issue.  Those keys are really not supposed to shear if the flywheel mortise is properly torqued down onto the tapered crankshaft .   :scratch:  If under-torqued, you'll shear every one though. Glad the mechanic didn't charge you if it was his torque job, but that would honestly worry me a bit for future service.

That said, Glad to hear the immediate troubles are behind you.  Happy boating!  :cheers:
Ryan

1979 246 CCC

1987 Wellcraft 18 Fisherman

August 29, 2013, 01:46:42 PM
Reply #21

Bergertime

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Re: Tach not working at Idle but works above 1200 RPMs
« Reply #21 on: August 29, 2013, 01:46:42 PM »
Ryan,

When I spoke to the mechanic after the key issue was resolved he said that it's a semi common problem for Jonnyrudes but also said that it could have been a result of shop error.  He fixed it free of charge and had her running good 45 min after I dropped her off.  Bad ending to a day on water but it could have been worse.  A tow back to where I was parked would have taken over two hours.

B
98 245 Osprey / Johnson 225

 


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