SoCal Jet Boats

Discussion => The No Wake Zone => Topic started by: YaDude on August 20, 2014, 05:43:52 AM

Title: Building an engine hatch
Post by: YaDude on August 20, 2014, 05:43:52 AM
Hi guys. I'm looking to build an engine hatch and put a bench seat in the back of my boat. I've searched the forum and only found a little bit of stuff. Anyone have any tips. Like with framing, hinges, and how to set up the actuator.
Thank you
Here's a picture of my Hallett. And a picture of what I would like to do




Sent from my iPhone using SoCal Jet Boats
Title: Re: Building an engine hatch
Post by: Your Mom on August 20, 2014, 07:59:35 AM
If everything else is manual on your boat make it like the lower pic with gas shocks an pin locks. Find the right hinge by doing some research. I built a wall in front of engine that slides into a track connected to seats and held in by pin locks with a speaker box. The hatch I built mimics the curve/angle of hull.  Made with plywood an laddered with 1x3 between outside/inside pieces and a 1x4 trimmed to inside hull curves...
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fym950_zps0e8c0e69.jpg&hash=bd05bb40395bc86607fdf88bb6e1022e92e538e1)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fjet%2520boat%2Fyourmomhatch1.jpg&hash=c8f0c58455b63688e5eb3ce5e996a3a188d6ebb5)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fym951_zps1f111498.jpg&hash=23125ddd8039e5b5b753f49f7a43afb3e7e13d95)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fym947_zpse41110c9.jpg&hash=0697e805d31476e026618fedf641f14e7d95847a)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fym949_zps8a06623b.jpg&hash=4c7e5dd7a89aa32a53af8f769578173e7446359c)
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fym953_zps425041c1.jpg&hash=fad5d27b42583c25c62c5615558a755839a3773e)
This last one is an older pic but the hatch and interior are the same.
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fi897.photobucket.com%2Falbums%2Fac178%2F2ndlight%2Fjet%2520boat%2Fyourmom6.jpg&hash=82e4808e4ae8c69bb3e59a639ba0cadbef2de832)
Title: Re: Building an engine hatch
Post by: YaDude on August 20, 2014, 09:24:12 AM
I saw some pictures of your boat on an old post.  Your work came out awesome. 
It looks like your's opens up similar to a tonneau cover on a truck.
I like that idea, it makes things easier than installing an actuator.
Did you put fiberglass on the top?  My fiberglass skills consist of trying it only one time before.
I was thinking of putting a small pad and upholstery so that it is comfortable to lay on.
Title: Re: Building an engine hatch
Post by: ka0tyk on August 20, 2014, 10:42:28 AM
build frame. u can use plywood, the 2x4 in mine is a little overkill.

(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xpf1/t1.0-9/10401866_10152293270539833_8636692832891187671_n.jpg)

skin frame with plywood.  if you have curves do layers and put a layer of glass and resin inbetween them.

(https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/10463878_10152293985209833_2311655986133882057_n.jpg?oh=f45e88b7261bffeeece4f6377cab9b57&oe=5479D06F&__gda__=1415674378_e2b02848b89d0ba22e0af3f7032b8c4b)

all the pieces

(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xap1/v/t1.0-9/q84/p417x417/1525013_10152315885289833_6759358496407031893_n.jpg?oh=209e383cd6c08e6af266469787b46618&oe=546A9A0A&__gda__=1417469215_8262f57e9fdc40732e06567c8f57830e)

fiberglassing together

(https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-xfp1/v/t1.0-9/10407985_10152315885199833_2119359750970871947_n.jpg?oh=712239004b91e3a0305548a1da88355f&oe=547DB406&__gda__=1417735267_f905e942916a71e343fbe5b805a3be63)

3 layers of 1/8" plywood with 3 layers of fiberglass

(https://fbcdn-sphotos-e-a.akamaihd.net/hphotos-ak-xfa1/t1.0-9/1902798_10152319987339833_5186534555222526359_n.jpg)

strong enough to stand on now

(https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-xpf1/t1.0-9/10551001_10152337254029833_8299494597825725813_n.jpg)

outside done, ill eventually cover it with foam and vinyl

(https://scontent-b-lax.xx.fbcdn.net/hphotos-xfp1/t1.0-9/10431566_10152337257994833_7641783555800881599_n.jpg)

inside carpeted

(https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-xpa1/t1.0-9/10556416_10152355340439833_4784650394987456054_n.jpg)

just gotta get some gas struts to hold it up.  the hinges are just regular hatch hinges from hardin marine/cpperformance.

http://www.cpperformance.com/p-13764-polished-stainless-steel-long-reach-hinges.aspx (http://www.cpperformance.com/p-13764-polished-stainless-steel-long-reach-hinges.aspx)
Title: Re: Building an engine hatch
Post by: Your Mom on August 20, 2014, 10:58:53 AM
Just on the inside on a few structural areas... Doing the whole thing is pointless. Used 3/8 marine foam on top then vinyl. The scoop is made like a custom speaker box out of a t-shirt an fiberglass then covered in vinyl. Wood was sealed before covering and is strong enough for me (240lbs) to jump on
Title: Re: Building an engine hatch
Post by: chriscab on August 20, 2014, 11:44:25 AM
That's goona look killer


Sent from my iPhone using SoCal Jet Boats
Title: Re: Building an engine hatch
Post by: YaDude on August 20, 2014, 02:43:26 PM
Thanks guys that really helps a lot.  Now i'm able to plan out the process.  Doesn't seem too hard.
Title: Re: Building an engine hatch
Post by: steves86ta on August 22, 2014, 01:22:21 PM
thanks to Kayotk's pics, i built one for the Bahner and i practically copied his design haha!

I used 3/8" plywood, 2X6 for the front panel, and 2x4 for the rest for the framing. Then resin coated and did a couple sheets of glass. Im pretty sure its fairly bulletproof.

Then had it covered by a guy here in highland for 250!

heres a couple pics
(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2FIMG_20140804_181006_358_zpsxlzdvbqf.jpg&hash=f2ae388aa2d3108483f07e407ce35dff95d838a9) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/IMG_20140804_181006_358_zpsxlzdvbqf.jpg.html)

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2FIMG95201408189518370995505_zpssvj6d50s.jpg&hash=a094013ac9de2db7169299618bbe3a7fbb084c5d) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/IMG95201408189518370995505_zpssvj6d50s.jpg.html)

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2FIMG_20140818_184316_066_zpssr7or7sf.jpg&hash=5cfb057620f0c8c0300c418abd19cab57c9082bf) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/IMG_20140818_184316_066_zpssr7or7sf.jpg.html)

(https://www.socaljetboats.com/proxy.php?request=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv643%2Fsteves86ta%2FMobile%2520Uploads%2FIMG_20140818_191805_364_zpsbyhfyrx3.jpg&hash=3ccd2ec23bcc74e2ef9d30030177d961d6637c32) (http://smg.photobucket.com/user/steves86ta/media/Mobile%20Uploads/IMG_20140818_191805_364_zpsbyhfyrx3.jpg.html)
Title: Re: Building an engine hatch
Post by: Your Mom on August 22, 2014, 02:48:36 PM
Personally...I like the sides and back to sit inside the hull making it more flush.
Title: Re: Building an engine hatch
Post by: ka0tyk on August 22, 2014, 02:58:09 PM
Personally...I like the sides and back to sit inside the hull making it more flush.

yeah it took a LOT of time and measuring to make mine sit flush.  as you already know, nothing on a boat is straight.  its all curves, slanted, angled, etc.  and completely different on each side.  my hand planer got a LOT of work trimming it to fit properly. 
SMFPacks CMS 1.0.3 © 2026