'79 Aquasport 170 Rebuild

[cduck870]

I just aquired a '79 170 and have started the rebuild.  I am on day 5 and have the transom out, deck is out and all of the foam on the outside of the stringers has been removed (all soaked, of course).  Top coming off the Stringers tomorrow and will then start that removal process as it is all also soaked thru and thru.  My main question at the moment is how to remove the soaked foam between the inner liner and the hull.  It appears it is wet at least 6-8" up.  I have been a member since 2015 and have a 222 flat back ('69) but have decided the 170 will be a better size for me and my girlfriend to handle since I am 72 and not getting any younger.  Any help or suggestions will be greatly appreciated.   Thanks to Capt. Bob and RickK for the welcome.  I will start posting some pictures tomorrow. 

[RickK]

Are you referring to the hullside liner? Or maybe under the casting deck? I will have to see a pic of what you're referring to as I've never heard of foam going above the height of the stringers.

[wingnut]

My ‘86 170 had foam squirted in through the gunwale. Every couple feet along the gunwale (below the rubrail) there was a 1” diameter hole where they injected the foam. The foam ran down and filled the cavity between the hullside and liner and then filled the area outboard of the stringers.

If you do not have plans to remove the liner, you’ll have a choice to make - if you can scrape it out as well as possible from the bottom and get most of the wet foam, that may be good enough for you. It’s not going to get any wetter, and may dry out some on its own since you’re removing the soggy reservoir below it. That water weight is pretty minimal, and there is nothing for it to rot out... main thing is whether it’s worth it for you.

[RickK]

Well I learned something new today then.

[cduck870]

Thanks for the info. Am seriously considering removing the liner. My 222 doesn’t have one. Just wonder about the hull strength.  Read in another post someone did that and then put a couple extra layers of glass on the inside. Any opinions on that would Be appreciated?  Love the hull design but am not necessarily a purist on restoration ideas. Thanks

[wingnut]

I'd say it depends a lot on 1) how much time/money you have for your rebuild, and 2) your intended use for the boat.

If you have plenty of time and need a project, I'd say go for it... extra strength is always a bonus. Though I imagine it would at least double and maybe triple your time investment vs. sole replacement with liner staying in. Tooting Rick's horn a bit, he has an awesome build thread along these lines.

If your boat is well put together and you're not doing anything crazy with it, it may not be worth the extra time/cost. My hull is stock, floor and transom are new, and stringers are well tabbed, and I've never had issues or felt any unhealthy flex in some pretty gnarly stuff. They're not built like a Contender, but they're not flimsy by any stretch.

All of that said - if I still have the boat in 20 years (and I plan to!) when it needs a new floor again, I will probably completely gut it and strengthen it for the ages.

[RickK]

I have not been in a newer 170 but have always wondered how they created the fishing rod cut out and if there is some kind of liner inside the rod holder area to keep water from getting into the bilge from that area. It looks open from the pictures in a catalog. What are your observations on this. Where does water go, like rain, if it gets into that area?

[wingnut]

There is a liner in this area, but it doesn't do its job well... It's caulked along the interior side, but is very difficult to clean and reseal. Photo is looking aft on port side.



I get a decent amount of water intrusion when it rains... not a huge issue when the boat is sitting in the yard, but I will have to try to reseal it more if I ever get a mooring.

I have wondered if the foam in the hullside was intended to hold this extra rod holder liner in place to some degree.

Rick - here is a photo showing the foam injection ports, prior to reinstalling the rubrail. If you zoom in you can see 5 holes on the face of the gunwale where the rubrail goes.



cduck, if you do remove the liner, it's an excellent chance to give your hull to deck joint some love! Mine was broken free for about 1/3 of the total length when I got it.

[BradC]

What is this “box” .... doesn’t show in the main advert picture? Tia


https://classicaquasport.com/gallery/showphoto.php?photo=21000&title=55af24aa-2f10-41ee-87a6-58bcaff79e8e&cat=500%5D%5Bimg%5Dhttps://classicaquasport.com/gallery/data/500/55AF24AA-2F10-41EE-87A6-58BCAFF79E8E.jpeg%5B/img%5D%5B/url%5D

[Capt. Bob]

What is this “box” .... doesn’t show in the main advert picture? Tia
https://classicaquasport.com/gallery/showphoto.php?photo=21000&title=55af24aa-2f10-41ee-87a6-58bcaff79e8e&cat=500%5D%5Bimg%5Dhttps://classicaquasport.com/gallery/data/500/55AF24AA-2F10-41EE-87A6-58BCAFF79E8E.jpeg%5B/img%5D%5B/url%5D

Optional Factory live well.

[cduck870]

Need some help please. I uploaded some pictures in the Gallery section and now don’t know how to find them again.  HAHAHA

[cduck870]

With regards to wet foam in the sides, the Liner is coming out. Also can I just post pictures here?

[RickK]

Need some help please. I uploaded some pictures in the Gallery section and now don’t know how to find them again.  HAHAHA

Here are your pics, in your member gallery. On a side note you uploaded multiples with the same name. I tried to delete one of the dupes but it deleted 2 because of the duplicate name. It was the pic of you blocking up the boat to get it on the trailer. You can upload that one again.
https://classicaquasport.com/gallery/showgallery.php?cat=500&ppuser=126990

[RickK]

With regards to wet foam in the sides, the Liner is coming out. Also can I just post pictures here?

Yes, you can post pics here, you've done the hard part already - uploading them to your gallery. Now follow from step 8 and beyond in the following link, to post the pic into your topic.
https://classicaquasport.com/smf/index.php?topic=12725.0

[wingnut]

With regards to wet foam in the sides, the Liner is coming out. ?

Are you going to reinstall the liner, or scrap it and start from scratch with a blank slate?