1965 Johnson Tri-Hull restore!

[SKOOTCH]

Re: 1965 Johnson Tri-Hull restore!

Did you make that little stand that your outboard is sitting on?

 

[Woodonglass]

Re: 1965 Johnson Tri-Hull restore!

If all you have is 4" biax tape the yes use it first. If you have bigger pieces of biax then NO use the woven first and the biax last.

I'm just sayin...

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

Did you make that little stand that your outboard is sitting on?

No I did not, although it wouldn't be very hard to. It was too cheap so instead of making one I just bought it used for $35.

If all you have is 4" biax tape the yes use it first. If you have bigger pieces of biax then NO use the woven first and the biax last.

I'm just sayin...

Ok, thanks. All I picked up is 4" tape, though I could get bigger stuff, but I'd rather use what I have, I bought a pile of woven and matt, not knowing at the time about Biax.

 

[Yacht Dr.]

Re: 1965 Johnson Tri-Hull restore!

Okies Parris..

Your transom build is way to shiny..grind the resin before you glass..

4" 1708 is basically worthless IMO..

Use your mat and woven...

Mat mat..woven,mat,woven,mat,woven, mat mat..

Prep everything..

YD.

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

Okies Parris..

Your transom build is way to shiny..grind the resin before you glass..

4" 1708 is basically worthless IMO..

Use your mat and woven...

Mat mat..woven,mat,woven,mat,woven, mat mat..

Prep everything..

YD.

Ok, shiny eh? That's just a coat of resin to soak in the wood, I'll sand er down though before hand.

Mat mat..woven,mat,woven,mat,woven, mat mat..

Not actually that many layers though? That would make it pretty thick!

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

Well I got the transom glassed in today. First did a layer of Matt with a 4" overlap/tab, then let it tack off till it was kinda sticky, then put a layer of woven with a 8" overlap/tab. Now do you guys think that is enough? Its already heaps more then it was factory, I just don't want to make the transom any thicker then it already is.

Also about little air bubbles? There are the odd air bubble in there, they are small, but I just couldn't work them out in time before it started to set.

Here is a couple of pics. In the first pic it looks like dry spots but it looks ok in person, I think its just the way the sun is reflecting on it.

 

[fstorm08]

Re: 1965 Johnson Tri-Hull restore!

WOW! Looking real good Parrisw!

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

WOW! Looking real good Parrisw!

Thanks!!! Glad I made some good progress today, the sun was out so I took advantage of that. I have to do all my work outside, since my garage is attached to my house. If I fiberglass in the garage it stinks up the house, then the wife ain't too happy!!

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

Ok, I'll ask this again. Do you guys think that's enough glass on the transom? Or should I do 1 more layer of Matt?

Thanks

 

[Woodonglass]

Re: 1965 Johnson Tri-Hull restore!

Sorry, it took awhile to get back atcha, parrisw.
I think you are good to go, I would sand out the bubbles, and patch in those areas with some glass strands and resin. That Transom will Hold any Motor you put on there, WELL, with in reason that is..


I'm just sayin...

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

Sorry, it took awhile to get back atcha, parrisw.
I think you are good to go, I would sand out the bubbles, and patch in those areas with some glass strands and resin. That Transom will Hold any Motor you put on there, WELL, with in reason that is..


I'm just sayin...

That's ok, thanks though. Ya the bubbles kinda pissed me off, I just couldn't get them out, it took a while to get the resin to soak in. Man I really don't want to do anymore grinding

How critical is it? The bubbles are pretty small.

Thanks for the reply.

 

[ezmobee]

Re: 1965 Johnson Tri-Hull restore!

I wouldn't mess with it further.

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

I wouldn't mess with it further.

Thanks, that's what I was hoping for. I think it would just make a mess of my nice looking transom. Sorry Wood, but I don't think I can bring myself to grind on my new transom.

 

[Yacht Dr.]

Re: 1965 Johnson Tri-Hull restore!

Well I got the transom glassed in today. First did a layer of Matt with a 4" overlap/tab, then let it tack off till it was kinda sticky, then put a layer of woven with a 8" overlap/tab. Now do you guys think that is enough? Its already heaps more then it was factory, I just don't want to make the transom any thicker then it already is.

Also about little air bubbles? There are the odd air bubble in there, they are small, but I just couldn't work them out in time before it started to set.

Here is a couple of pics. In the first pic it looks like dry spots but it looks ok in person, I think its just the way the sun is reflecting on it.

One layer of mat and one layer of woving IMHO wont cut it..

If your just sealing the trans okies..kinda marginal to me..but for Tabbing you should grind and Tab more lams.

You should ALWAYS have Mat before your Woven.. you cant mat 4 and woven 8 .. It would be inversed .. mat 8 and woven 4 IF anything..

But.. I allready suggested your mat mat.. woving mat woving..etc.. Kinda too late to ask without having some grinding disks and itch arms ready for the answer..again...

Now I know your going to bring your stringers up..and grind/glass some more.. I assume.. So again.. DRY fit .. prep..cut your glass.. have it All ready to go..then glass.

I dont just say using mat for the first layer for kicks ..nor the last layer being mat to cost you $$.. its for your next step bonding.. if you have to grind/scuff or add your glass for your next step...

The best way to glass is using mat First..then your schedule glass ( being 1708 after 1708 OR ..mat woven mat woven mat..etc..

YD.

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

One layer of mat and one layer of woving IMHO wont cut it..

If your just sealing the trans okies..kinda marginal to me..but for Tabbing you should grind and Tab more lams.

You should ALWAYS have Mat before your Woven.. you cant mat 4 and woven 8 .. It would be inversed .. mat 8 and woven 4 IF anything..

But.. I allready suggested your mat mat.. woving mat woving..etc.. Kinda too late to ask without having some grinding disks and itch arms ready for the answer..again...

Now I know your going to bring your stringers up..and grind/glass some more.. I assume.. So again.. DRY fit .. prep..cut your glass.. have it All ready to go..then glass.

I dont just say using mat for the first layer for kicks ..nor the last layer being mat to cost you $$.. its for your next step bonding.. if you have to grind/scuff or add your glass for your next step...

The best way to glass is using mat First..then your schedule glass ( being 1708 after 1708 OR ..mat woven mat woven mat..etc..

YD.

Ok thanks, I asked to clarify last time you posted but never heard back, I wasn't sure. So far there is a layer of Matt then a layer of Woven. So far the transom in significantly thicker then stock. So your saying 8 layers of matt and 4 of woven? Man that is allot. Don't you think that's kinda overkill? I've always thought and been told not to go overkill, otherwise I can adversely change the handling/weight dist of the boat.

Lets put it this way, its already leaps and bounds stronger then stock, before it was only 1 1/4 thick finished, there was no fiberglass at all on either side of the transom, it only had 1 4" tab of woven on it, the rest of the inside of the transom was bare.

Now the wood thickness is 1.5" plus a layer of matt inbetween the skin and wood core, then a layer of matt then a layer of woven, so I'm probably at 1.75" now.

If you think I need to do a few more tabs then I'm all for it. I'd rather not make the transom any thicker then it is now though?

Thoughts?

 

[ezmobee]

Re: 1965 Johnson Tri-Hull restore!

so far the transom in significantly thicker then stock.

Lets put it this way, its already leaps and bounds stronger then stock

thoughts?

this

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

this

ha ha ha. Thanks for the help!!

 

[tallcanadian]

Re: 1965 Johnson Tri-Hull restore!

I don't think you have any worries of your transom breaking anytime soon. Looks great. Nice work.

 

[parrisw]

Re: 1965 Johnson Tri-Hull restore!

I don't think you have any worries of your transom breaking anytime soon. Looks great. Nice work.

Thanks!

Also got the stringers all filled with foam on Monday, now need to sand them down a bit, then fiberglass over them. Then onto the floor!

 

[tallcanadian]

Re: 1965 Johnson Tri-Hull restore!

Thanks!

Also got the stringers all filled with foam on Monday, now need to sand them down a bit, then fiberglass over them. Then onto the floor!

Your on the upside now. It's fun to be able to make this ''yours'' and do what you want. Would love to see more pics, especially of the foam stringers.