Trojan Boat Forum

Does any one know if parts or rebuild kits are available for this Valve. Groco SV 1500

It is old but I want to freshen it up and try to dry my bilges, I am not sure if this is the source or something else.

Should I replace the valve completely or continue to use it, the boat is a 1985


Does the Majority of F36 owners have a lot of water in the forward hold?

I have the SV1500 valves which are in good shape, and recently replaced the rubber cores. I don't know why mine shouldn't last for another 20 years.

I considered putting in ball valves, but all the new valves have a three bolt flange and my SVs have a two bolt flange. I didn't see where the benefits outway the effort.

where did you get the rubber cores? That is what I am looking for?


Are yours bolted down to the backing board? My forward one was not.. How is it attached, just to the backing board? any pictures Mine are two bolt also..

cuppa,

I called Groco looking for plugs and to my surprise an actual person answered the phone right away and steered me to a gentleman who explains that he went to work there in 1958 - making plugs. He told me the entire history of the valve. Anyway they don't make the plugs anymore, but do have an inventory still on hand. Give them a call. They love to help out. They'll sell them direct to you.

I got my cores direct from Groco also. My valves have plywood backing plates. The carriage bolts go through the bottom, through the backing plates, and through the flanges on the valves. The nuts sit on the flanges.

If you make backing plates and the bottom is fairly flat, use 3/4" Starboard for the backing plate- it will never rot.

Assuming these thru hulls have seen most of their 24 years of service in salt water, I would be concerned about how much bronze has been leached out of them by electrolysis. I changed all of them in my 1980 F-36 right after I bought it 5 years ago and they needed it. Some of the bolts twisted off easily...were holding nothing, and the housings were red almost copper in color and were close to failure. The old bolt holes can be easily filled with epoxy. Yes, all the bilge water in my F-36 runs forward to just aft of the v-berth and is pumped out from there.

Posted: Thu Dec 31, 2009 5:48 am Post subject:

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I got my cores direct from Groco also. My valves have plywood backing plates. The carriage bolts go through the bottom, through the backing plates, and through the flanges on the valves. The nuts sit on the flanges.

If you make backing plates and the bottom is fairly flat, use 3/4" Starboard for the backing plate- it will never rot.

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I was advised NOT to use starboard on my refit, as no sealing compound will "stick" to it well over time.

RWS

Good point, Starboard is great polymer board for rot-free installations, but 5200 (and anything else I have found) will not stick to it.

Here is King's FAQ on the subject:

What sealants and adhesives are recommended for King StarBoard?

BoatLIFE® LifeCaulk® works well to replace old or worn caulking. Before caulking, the surface should be prepared by abrading it with medium-grit sandpaper, then cleaning it with acetone, toluene or alcohol.

King StarBoard can be welded using special rods. Contact Plastic Welding Technolgies (http://www.pwtworld.com) for details.

Adhesives have been used with some success, however King Plastic Corporation recommends using mechanical fasteners to ensure reliability.

http://www.kingstarboard.com/InfoCenter/FAQ.aspx

Hello I tried GROCO and they no longer have this part in stock.. Just recently ran out does any one have a New plug for the 1500 they would be willing to part with?

Let me know..

ANy one have any back room contacts at Groco?