www.iFourWinns.com

Hi all im a anew boat owner ...i just picked up a 88 200 horizon 4.3 omc cobra....it is i great shape except for two things , the trim gauge doesnt work and neither does the speedo! Any suggestions as to how i can fix these?
thanks in advance

First, welcome!

You may have an easy fix or you may need to replace your cluster. I would check and double check all of the connectors on the guages and all of your ground wires. If not the connections, if you have the VDO cluster, you may need to do a swap. Search VDO on this forum and enjoy all of the horror stories.

Good Luck and let us know what you find.

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2001 Horizon 260 - 7.4 Volvo GSI DP

No VDO cluster on these oldies, they have reliable separate gauges, but the trim sender corrodes inside and then it does not work. If you can find the wires where they come into the engine harness (both are brown I think) through the transom, if you disconnect them at the terminals, and then hook up an ohmmeter while someone cycles the trim up and down, the reading should go from 0-200 ohms if the sender is good. If not then you have to replace it. It's mounted on the right side of the pivot housing, a plastic disc, with an arm coming off of it, 2 bolts hold it on. The OE ones are no longer available, but Sierra makes one that works fine....

Take a look at this parts diagram, the sender is part # 86

http://www.dougrussell.com/partscatalog ... 09,507,508


Like I said, Sierra makes one, you can find it on iboats for less...

The speedo, could be a gauge issue or the plastic hose that goes to the speed pick up on the transom may be disconnected....

As you can see I have the same boat right down to the engine, 4.3 4bbl Rochester Quadrajet, it's a good running boat and very stable handling.

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88 Four Winns 200 Horizon
4.3 OMC Cobra-4bbl
2002 Walker Bay 10/2012 Suzuki 2.5
2008 Walker Bay 8

1998 Jeep Grand Cherokee 4.0/Selectrac
2007 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

thanks for your response ..i will check those things today....i will let you guys know what i find!

your pitot tube may be stopped up on the speedo....it;s a hole in the small plastic arm that hangs just below the hull at the transem....newer model volvo drives have this built in to the lower unit....take a thin metal wire and insert into hole to make sure not plugged.....also, my money is on the sending unit or corroded connections on the tilt/trim meter.

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http://i1339.photobucket.com/albums/o71 ... wqm355.jpg


08' H210SS
VP 5.7Gi

The trim sensor wires sometimes break near the sensor, you may be able to splice them back together and seal them good if this is the case. The correct thing would be to replace the sensor, but just possibly giving a different option. This is what happed to mine and 1/2 hr. later it's fixed, and a year later it still functions correctly.

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'90 Horizon 220 5.8

So what did you find ? Did you get it fixed and working ?

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One of 4 Previous (Sold) Boats:
2000 Four Winns 268 Vista

Current Boat: 2004 Chaparral 235 ssi cuddy

Is this the boat you just posted for sale in the Sale Forum?

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Current Boat:
2004 Sea Ray 320 Sundancer "Nauti Luvin'"

Previous Boats:
1999 298 Vista "Seas The Day"
2008 H200SS "Nauti Luv"
2006 Tahoe Q4