85 Crestliner 16 Rebuild

[eboat85]

85 Crestliner 16 Project

85 Crestliner 16 Project

JB,

I gave it a try and it looks like it only has an effect on the current post and not the entire thread. I changed the first post and that too only changed that one. It might however reflect on any responses to the posts. In the mean time I am going to keep using this title ^^^^^.

Thanks for trying!

 

[jigngrub]

Re: 85 Crestliner 16 Rebuild

Hey EB, that corrosion was caused by trapped water believe it or not. It's called galvanic corrosion and happens to tinny transoms with just plain wood too. Once the water is gone and the transom is dried out you don't have to worry about it.

Painting the inside of your transom is the best thing to do to keep this from happening again.


Don't worry about the title of this thread, almost every boat we see on here turns out to be more work than originally intended.

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Thanks Jig, I think it will be good to try to clean all the dried stuff out of the pits before becoming a JB Weld mudding master but is good to know that the corrosion is done. By the time I am done the aluminum will be separated from the wood by jb weld , etching primer, rustoleum spray enamel, epoxy and sweat & frustration. That should give it a fair amount of insulation!

I have found that every step in this project has led to another plus I have added some changes to the layout. I have decided to remove the floor tank and create a floor storage compartment along with adding a ski pylon. With the floor apart I should be able to build a solid base for it.

I have a bunch of questions going through my mind in how to create the storage area but I better finish a transom first!

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

The transom wall is all filled and etch primed and waiting for final paint.

I took some drawings to a local shop to get a 1/4" alum. motor mount plate made to give better support to the engine and spread the load. While I was there I spent some time with a welder and came up with some ideas to improve the gussets that support the entire transom surface. The torque of the engine on the weak, rotten transom broke all the welds to the lower hull and allow the the engine to flex the lower engine mounts inward. When we are done this thing should be rock solid.

Making progress!

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Picked up a 1/4" aluminum transom mounting plate today from a machine shop. Should give the engine a nice mounting surface.

Also, for anyone following this thread and using US Composites epoxy, 9oz of epoxy and 3 oz of hardener covered a 60"x10" surface, four 2" wide edges and an some extra odd and ends with no problem.

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Quick question, I am not planning on painting over the epoxy on the transom since it will not see the light of day. However, I also epoxy coated some 1/2" panels that will be in the bilge floor and side walls. What is a good paint to use over the epoxy, or does it matter?

Been on hold other than the epoxy waiting for the temps to get out of the 40s so I can finish painting the inside surface of the aluminum transom wall. Winter is coming too quick!

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

A few pictures just to update the progress. I have assembled everything without the 5200 or rivets. I am waiting on some hardware to finish adding a swivel-eze ski pylon that I am adding that will mount to the inside face of the transom wall.

I have learned to appreciate the small scope of this job after watching what a lot of you guys have been working on.

I hope to have this part of it buttoned up before the snow comes...

 

[jbcurt00]

Re: 85 Crestliner 16 Rebuild

Epoxy covered side panels can be painted w/ whatever paint you choose. Prep work is almost more important then the actual paint application or what brand paint. At least as equally important....

Sprayed Rusto Pro, Ace Hardware's self-branded Rusto line, Tractor Supplies Majic Tractor & Implement paint are all lower cost options that can also be used an added enamel hardener. The hardener raises the scratch resistance & increases the gloss level. If you spray w/ it you MUST be wearing a respirator rated for isocyanates.

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Transom is installed and bolted into place. The splashpan is re-riveted into position and the cables are routed. All I need to do is schedule a time with the local welding shop to get the original braces under the splashpan repaired and reinforced and it will be time to put the engine back on.

I have a couple of pics that shows the rough plywood construction of the bench. The original pad is in tough shape so I am going to put in this assembly once it is smoothed, epoxied and then will cover with an alum skin and then add some anti slip tape.

One step at a time!

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Here is a dumb question. In my old 71 Starcraft SS I used to run a couple of the metal 6 gal gas cans. Carried a spare hose and no problems. Now that I am removing the inboard tank and getting ready to buy portables again I have seen notes that they require a fuel demand valve. I understand the principal of restricting pressurized flow but is it really necessary? Out of habit I always disconnected the line from the engine when not in use either mooring or on the trailer.

Ps, boats heading to the welder in the morning.

 

[jbcurt00]

Re: 85 Crestliner 16 Rebuild

What motor are you putting back on this? It doesn't have a fuel pump, so no need for a pressurized tank, nor the fuel demand valve a pressurized tank requires?

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

What motor are you putting back on this? It doesn't have a fuel pump, so no need for a pressurized tank, nor the fuel demand valve a pressurized tank requires?

JB, I am putting on the original Johnson 90 VRO-less. I have removed the original VRO pump and put on a standard OMC 2-cycle pump.

 

[jbcurt00]

Re: 85 Crestliner 16 Rebuild

I'm not sure I understand the need for the valve. But I am all for safety & improved protection for you, the boat & the environment, so maybe I need to look into the valve too. I'm converting TO a fuel pump from a pressurized tank on 1 motor (no work on that at all yet) and I think the Duracraft's Fat50 has already had the conversion, it was running a single fuel line to a bow mounted tank, non-pressurized.

Hmm, not tonight, but I'll have to check into that reg...

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

I'm not sure I understand the need for the valve. But I am all for safety & improved protection for you, the boat & the environment, so maybe I need to look into the valve too. I'm converting TO a fuel pump from a pressurized tank on 1 motor (no work on that at all yet) and I think the Duracraft's Fat50 has already had the conversion, it was running a single fuel line to a bow mounted tank, non-pressurized.

Hmm, not tonight, but I'll have to check into that reg...

I would be interested to know what you find. I get the thought that pressure building in the tank would force fuel through the prime bulb and into the engine but I figured that it wouldn't cause any issue since the pump would stop the flow until it is functioning while running. Unless the pump works differently than I think?

Like you said .... For another night.

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Ok, I couldn't keep from surfing. I found this link from West Marine that shows what I have been thinking about.

Attwood Fuel Demand Valve - YouTube

 

[jbcurt00]

Re: 85 Crestliner 16 Rebuild

I'm not 100% but based on that video, it sounds like the tank is becoming pressurized by heat, hence the comment about holding BACK 5lbs of pressure (IMHO that's not a lot of pressure but is above the recommended 3psi recommended for checking a tank for leaks) and his use of the words FORCING FUEL into the carb above what the carb is 'asking' for.

W/ my single line portable fuel tanks, there's an operable vent in the top of the tank, not sure how there every be any pressure in the tank forcing fuel into the motor, since the vent has to be OPEN to allow air to back fill the tank as fuel is removed, preventing a vacuum that would starve the motor of fuel.

W/ my permanent tank, there's an overflow vent, so doesn't that also allow air to back fill the tank as the fuel is removed?

Correct ^^^? ???

I still don't understand the 'need' on modern fuel systems....

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

I'm not 100% but based on that video, it sounds like the tank is becoming pressurized by heat, hence the comment about holding BACK 5lbs of pressure (IMHO that's not a lot of pressure but is above the recommended 3psi recommended for checking a tank for leaks) and his use of the words FORCING FUEL into the carb above what the carb is 'asking' for.

W/ my single line portable fuel tanks, there's an operable vent in the top of the tank, not sure how there every be any pressure in the tank forcing fuel into the motor, since the vent has to be OPEN to allow air to back fill the tank as fuel is removed, preventing a vacuum that would starve the motor of fuel.

W/ my permanent tank, there's an overflow vent, so doesn't that also allow air to back fill the tank as the fuel is removed?

Correct ^^^? ???

I still don't understand the 'need' on modern fuel systems....

In using older portable components or the original vented permanent tank, you are correct JB.

In looking at the new Attwood tank specs, it looks like the manual vent has been eliminated and now has a new integrated vacuum valve that will allow air in as the engine draws fuel. My guess is that the design was made to encase vapors and the tank was designed to hold the higher pressure. The drawback is that the pressure can also go up the fuel line so the demand valve was created as a way to restrict that.

Looks the the standards for the tanks were changed about two years ago.

On the flip side, if the hose is disconnected when not in use and the cap was loosened to relieve pressure each time the hose is connected it might negate the need for the valve..... but it seems that the valve would be easier to just install and forget.

That's all I can figure for tonight. It's getting too late for this guy.

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

Does anyone know what type of wood Crestliner used for trim on the boats in the 80s? I have three strips on the bow and both gunwales that are steps and a few pieces on the swim ladder. I would like to refinish these while everything is packed away for the winter.

 

[jbcurt00]

Re: 85 Crestliner 16 Rebuild

The wood in these bolsters:

Looks like teak to me

 

[eboat85]

Re: 85 Crestliner 16 Rebuild

The wood in these bolsters:

Looks like teak to me

That was my first thought to JB, the only thing that made me question it is that they appear to be varnished or sealed with something and all the teak I have dealt with in the past was oiled. The ones on top of the gunwales and in the cushion bolsters appear to be the same.