345/348 - Head mounting plate

Print Page | Close Window

Head mounting plate

Printed From: myHanse.com
Category: Hints & Tips
Forum Name: 345/348
Forum Description: 345/348 Hints, Tips and News
URL: https://www.myhanse.com/forum_posts.asp?TID=15487
Printed Date: 27 March 2026 at 03:29
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com

Topic: Head mounting plate

Posted By: BNASailing
Subject: Head mounting plate
Date Posted: 05 January 2026 at 07:07

I’m upgrading from the original (2014) all things head - including hoses, tank, and the head, itself.

Two of the four mounting bolts are broken for the head.

Q: is there an aluminum plate sandwiched into the mounting surface of the fiberglass for the head, or an alternate means of mechanical attachment for these bolts?

I need to drill out or extract these broken bolts, and I’m trying the visualize what I’m dealing with….

-------------
RM

Replies:

Posted By: BNASailing
Date Posted: 24 January 2026 at 17:00

I can confirm that there is an aluminum plate imbedded in the fiberglass for mounting the head in a 2014 345. I was able to drill out broken/ seized bolts, drill and tap for replacements.

-------------
RM

Posted By: Mark_J1
Date Posted: 24 January 2026 at 20:38

I had a similar issue on my 400. There is an aluminium plate in the moulding However, drilling out the existing broken bolts is tough. I found it easier to cut them level and slightly reposition the bowl, then drill and tap fresh holes. This also had the advantage of giving a little more space to open the locker beside the bowl.

Mark

-------------
Hanse 400e "Grey Goose" Hull #31

Posted By: BNASailing
Date Posted: 25 January 2026 at 03:14

Ok. That’s a great suggestion. I assumed that the former placement was optimal, but that is an assumption worth testing. Converting to a fresh water head…

-------------
RM