Dan
I suggest checking with the instrument manufacturer to see which resistance sender you need. This can normally be done online using the instrument number. Then pull the sender and drive on over to the nearest auto-parts store. He can probably match the threads and resistance with a generic automotive sender. Chances are the threads are a standard 3/8 pipe-thread. I don’t have a W58, so I’m not sure.

Regards
Rich

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Looking at the W58 Parts list:http://drop.io/DeepPlaya/asset/westerbeke58-partscatalog

I see that as PN 23571 Sender Water Temperature 1/8NPT
According to Torreson that PN is now 35109 which they sell for $76.56.
http://shop.torresen.com/marine_diesel_direct/Westerbeke/index.php?p=details&mfc=Westerbeke&sku=35109&sectionid=5161

I have no idea if that is a good price.

-p

On Wed, Mar 10, 2010 at 9:37 AM, kalinowski < ([email][/email])> wrote:

The temp gage on our W 58 has given up the ghost (the gage pegs at 300 when the engine starts). Are these standard screw in units? Suggestions?

Dan Kalinowski
Lady leanne II (#135)
Honolulu

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Its good for them but not so good for you. Their asking $76 for a $20 part. Check for a loose connection at the top of the sensor. That would cause the needle to peg if its open. A little PB-blaster on the connection might help.

Rich

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I've replaced both my oil low pressure switch and sender unit and gauge with standard units from Stewart Warner – go to an autoparts store and get a new unit for $20 or less.  I think the original Westerbeke gauges are VDO.  That means the senders are also.  But they are so standard that you'll have no problem getting a replacement.  Even if you have to replace the gauge, it's only another $30.  So for all that, it's less than Torrensen.

Bob

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Bob Fine
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Pearson 424 Hull #8
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There were two temp “senders” on my W58. One is for the idiot horn and the other for the temperature gauge. I replaced my gauges with trusty and good looking VDO “cockpit series gauges” and made a new plastic panel. The whole panel with senders and the tach will go up for sale in a few weeks when my new panel comes with the new Beta Marine engine. ( I don’t want to leave a big hole in the boat in the meantime… I have a big enough hole in the sole where I am building the new fuel tank. I’ll take a picture of it this weekend.

Pete

On 3/10/2010 10:37 AM, kalinowski wrote:

The temp gage on our W 58 has given up the ghost (the gage pegs at 300 when the engine starts). Are these standard screw in units? Suggestions?

Dan Kalinowski
Lady leanne II (#135)
Honolulu

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maillist mailing list
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Most likely wiring. Check your connections, especially at the guage.
Quent