[Public-List] Mounting surface under the head

Carla hazlegrove at aol.com
Tue Jul 16 13:57:38 PDT 2019


I replaced my head last Spring and found the mounting surface took four stainless lag bolts very well.  The new holes didn't line up with what was previously there so I drilled a size or two smaller for the new bolts.  I’m not sure what may have been under the liner if anything at all but the fiberglass was relatively thick and the bolts quite secure. For what’s it worth,  the larger size Jabsco bowl did fit within the space behind the folded door and the slow close seat and lid stay up fine even though they are a little more vertical than the instructions suggest. 
Richard Hazlegrove 
Quest 433
Mob jack Bay, VA. 

Sent from my iPad

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> Today's Topics:
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>   1. Head mounting liner boat (David A. Bardsley)
>   2. Re: Head mounting liner boat (George Dinwiddie)
>   3. Re: Head mounting liner boat (David A. Bardsley)
>   4. Re: Head mounting liner boat (Kris Coward)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 15 Jul 2019 13:48:46 -0300
> From: "David A. Bardsley" <davebardsley at eastlink.ca>
> To: public-list at lists.alberg30.org
> Subject: [Public-List] Head mounting liner boat
> Message-ID: <beee12e6-5f8a-4946-9465-1c7661ec33e6 at email.android.com>
> Content-Type: text/plain; charset="utf-8"
> 
>   Folks,
>   What is the head mounted to underneath the cabin liner?
>   I'm about to install a replacement head, jabsco compact 29090-3000, and
>   am wondering what material I'm about to bolt into.
>   Dave
>   #574 Ginseng
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Mon, 15 Jul 2019 13:26:21 -0400
> From: George Dinwiddie <gdinwiddie at alberg30.org>
> To: public-list at lists.alberg30.org
> Subject: Re: [Public-List] Head mounting liner boat
> Message-ID: <70cdd9ec-76f9-4806-0ea8-71dd8a63c19a at alberg30.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Dave
> 
>> On 7/15/19 12:48 PM, David A. Bardsley via Public-List wrote:
>>    Folks,
>>    What is the head mounted to underneath the cabin liner?
>>    I'm about to install a replacement head, jabsco compact 29090-3000, and
>>    am wondering what material I'm about to bolt into.
>>    Dave
>>    #574 Ginseng
> 
> I suspect it's just mounted to the liner itself.
> 
>  - George
> 
> -- 
>  ----------------------------------------------------------------------
>   When I remember bygone days                         George Dinwiddie
>   I think how evening follows morn;            gdinwiddie at alberg30.org
>   So many I loved were not yet dead,           http://www.Alberg30.org
>   So many I love were not yet born.                          also see:
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> 
> 
> 
> ------------------------------
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> Message: 3
> Date: Mon, 15 Jul 2019 14:41:16 -0300
> From: "David A. Bardsley" <davebardsley at eastlink.ca>
> To: Alberg 30 Public List -- open to all
>    <public-list at lists.alberg30.org>
> Subject: Re: [Public-List] Head mounting liner boat
> Message-ID: <75dc10c9-5eaf-49fb-8e99-97b787a334b0 at email.android.com>
> Content-Type: text/plain; charset="utf-8"
> 
>   I removed the original head over the weekend and the four square headed
>   SS bolts have an aggressive self-tapping thread.  My instincts say
>   there is a large block of wood or GRP filling the void between the
>   liner and hull, but without performing unwanted exploratory surgery I
>   cannot say for sure.
>   Dave
>   #574 Ginseng
> 
> 
> ------------------------------
> 
> Message: 4
> Date: Mon, 15 Jul 2019 15:11:05 -0400
> From: Kris Coward <kris at melon.org>
> To: "David A. Bardsley via Public-List"
>    <public-list at lists.alberg30.org>
> Subject: Re: [Public-List] Head mounting liner boat
> Message-ID: <20190715191105.dhhyhymle3parsru at melon.org>
> Content-Type: text/plain; charset=us-ascii
> 
> 
> When I switched to a composting head on Candy Cane (#583), there didn't
> seem to be anything filling that void. I also failed to hit any backing
> material when pulling battery cables for the repower to electric. The
> aggressive self-tapping thread is probably to be able to cut a thread
> into the FRP itself (since glass is harder than tool steel, the decision
> for aggressive self-tapping may have been made to make sure that enough
> thread got cut in the FRP by the bolt, instead of too much thread
> getting cut off the bolt by the FRP).
> 
> -Kris
> 
>> On Mon, Jul 15, 2019 at 02:41:16PM -0300, David A. Bardsley via Public-List wrote:
>>   I removed the original head over the weekend and the four square headed
>>   SS bolts have an aggressive self-tapping thread.  My instincts say
>>   there is a large block of wood or GRP filling the void between the
>>   liner and hull, but without performing unwanted exploratory surgery I
>>   cannot say for sure.
>>   Dave
>>   #574 Ginseng
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> -- 
> Kris Coward                    http://unripe.melon.org/
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