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  #1  
Old 06-29-2013
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Replacing head on PSC 37

A quick peek shows the current toilet installed with lag bolts.

I'll be installing a Raritan with a far different bolt pattern, wondering what kind of backing is under the fiberglass under the toilet.

I had assumed (I know) that the head was thru bolted and I would have access to the area under the toilet.

Anyone with experience replacing the head?
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Pacific Seacraft "Crealock" 37 #312

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Old 06-30-2013
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Re: Replacing head on PSC 37

Mine is lag bolted in also. When I removed it to rebuild the innards I noticed that the surface it is lagged to is quite sturdy but I can't see any way to thru bolt it, or really any need to.
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Old 07-01-2013
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Re: Replacing head on PSC 37

Oh good grief.

The Raritan doesn't fit. Figured out I have a Groco K, gonna return the Raritan and rebuild the Groco.
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Old 07-01-2013
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Re: Replacing head on PSC 37

Dale:
Here's an older thread on how Jay installed a new head, w/thru bolts, by building an access door in the front of the platform.
Lavac Head Install Pictures
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  #5  
Old 07-02-2013
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Re: Replacing head on PSC 37

I pulled the original toilet (Groco K) on Crazy Fish a few times to rebuild it while cruising, replaced it with a Lavac and replaced the Lavac with an electric unit with a macerator at the based of the toilet.

I installed a bronze screw in circular access port on the vertical surface in front of the shelf that that the toilet mounts too. Pacific Seacraft installed a similiar one to provide access to the fuel gauge mounted directly on the fuel tank. I can just fit my hand thru the port to attach nuts to the bolts and hold a wrench on the nut.

Another approach that will provide better access is to remove the drawer cabinet under the main berth. You will be able to see and access the lag bolts or whatever was used to mount the toilet.

Quite a bit of unused space back behind that cabinet. I built a shelf aft of the cabinet and mounted an electronic compass for WH autopilot a number of years ago. A couple of days ago I installed a Newmar semi water tight box and terminated the new wires recently installed in the mast and the wires running from the electrical panel as well as a NMEA 2000 tee to link the new B&G Triton mast head wind indicator and the Depth/Speed/Temp sensor to the cable that runs back to the Nav station. The teak bungs that cover the screws for the cabinet were replaced once. I find I pull the cabinet frequently enough to not install the bungs.

Marc Hall
Crazy Fish - Maintaining, Upgrading and Sailing a Crealock 37

Last edited by MarcHall; 07-07-2013 at 03:00 AM.
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Old 07-03-2013
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Re: Replacing head on PSC 37

Once I got the Groco K apart is was obvious it needs more than a service kit. Cylinder is badly scored, rings shot, foot pedal shaft badly pitted. I could send it back to Groco for a rebuild but that's going to eat into our already short season, bit the bullet and ordered a new Groco, Defender will have it here first of the week.
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Old 07-04-2013
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Thumbs up Re: Replacing head on PSC 37

Quote:
Originally Posted by sailak View Post
Once I got the Groco K apart is was obvious it needs more than a service kit. Cylinder is badly scored, rings shot, foot pedal shaft badly pitted. I could send it back to Groco for a rebuild but that's going to eat into our already short season, bit the bullet and ordered a new Groco, Defender will have it here first of the week.
Dale:
I've been there. Hard to put a price on time on the water, esp. in a part of the world as majestic as yours - was admiring your 2013 pics on your site - really breathtaking. Thanks for sharing the pictures.
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Old 07-04-2013
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Re: Replacing head on PSC 37

Dale --

If it's not too late, save the china bowl from your Groco K until after you have the new one installed. The newer model Ks have bowls fabricated overseas and there have been fit/seal problems. Your old bowl may come in handy if you encounter the same problems we did.

Two years ago, we replaced the model K onboard JUNO and the new bowl was so uneven at the base that even with the thick (1/4"?) gasket, we couldn't get it to stop leaking at the base no matter how far we tightened down the bolts. We spent several extra days tied up to a transient slip in Rhode Island waiting for a replacement bowl from Groco -- who were very nice, acknowledged that a problem had arisen with outsourced bowls, and sent us a new one, but nonetheless, living aboard with no head is no fun.

The new one worked/works like a charm.

Fair winds,

Roger
S/V JUNO
PSC 40 -- #46
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Old 07-04-2013
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Re: Replacing head on PSC 37

Saving all the parts, you just never know.
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Old 07-08-2013
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Re: Replacing head on PSC 37

Dale,
I haven't replace my 1988 Groko on my 34 yet but that is on my list to do.
However from reading many posts, mostly on this forum I've come to believe that rebuilding the Groco does not have reliable results. Primarily for reasons you have mentioned. Cylinder scoring. IMHO the only reliable method is going to be to purchase new from Groco. Hate spending the bucks but I figure if the previous Groco made it 25 years than a new one is worth while. I used the same reasoning with my Adler-Barbour refrigeration compressor. Besides it'll only hurt for a week or so.
U don't want it to hurt again a year from now when you have to rebuild your rebuilt.

Keith
PSC 34
S/V Charity Rose

Last edited by mondofromredondo; 07-08-2013 at 08:12 PM.
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