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Official 1980's Weekender/Sundancer 300 thread

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#1,042 ·
Tritone said:
"If you changed the cap and saw an improvement, than it sort of leans towards ignition."

This is what I was thinking. I did get a new set of wires and thought I should just change the plugs while I'm down there. It doesn't easy to get in there though. I am not sure if I can even get my head down there.

I tried to get a pick up but he didn't have one in stock. I definitely think it should be changed after see corrosion. I will probably have to buy a new rotor now since it is so tight I will likely end up breaking it to get it off again.
Click to expand...
If your bilge is like mine you're not going to look at the plugs to get them out. You'll have to do it by feel. They aren't really as hard to get to as they seem.
Check the plugs over and make sure you don't have a cylinder that is misfiring. If you do, it may be time for a compression check.
Hopefully it is a simple problem with the pick up, cap, or rotor. But it could be a bad cylinder if it isn't making enough power. The compression check will tell you if something more serious is wrong.
 
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#1,043 ·
Tritone said:
Put the set of wires on and the same thing. I did get up to 26 knots before it kicked in though. Now I guess the plugs and the pick up. After that I don't know where to go.
Click to expand...
Im going to the boat tomorrow, may I show this thread to my slip neighbor and engine guy? I still think it's a timing issue, but you changed the coil and switched the ICM. That leaves the pickup and I would have sworn it was the ICM
 
#1,044 ·
Well i was going to take the boat out today for her first cruise of the summer,but,when i started the engines i got a small backfire from each one.So i rechecked the bilge,i am not used to having mufflers so its a lot quieter this year,good thing i did as the port outlet hose(fiberglass long thing with elbow that goes to the side exhaust port) popped out of the 5" hose attachet to the muffler and was letting the water into the bilge.I was worried about this when i assembled the project and now need to re engineer it a bit.I am thinking bellows adhesive will hold the coupling adapter in place along withh the hose clamps or i could order a couple of 5" to 4" bellows hoses to replace what i now have.Any thoughts on this would be appreciated.Also ,why do my engines backfire on start up,they dont do it after warm up.Could it be the gas from last year,it ran fine bringing it down river two weeks ago? I dont know if it did it before because without mufflers it was to loud to hear it as it isnt a big backfire like a car has.The carbs were rebuilt 3 years ago or about 100 hrs of use and i store with startron that i add before the 30 minute ride to the winter storage facility.Any help on these issues guys?Thanks Glen
 
#1,045 ·
Oh the joys of boating!
My wife and kids picked up trays of Sushi, a cake, and we went to the boat to enjoy an adult beverage or two and celebrate my B'Day last night. After we ate at the dock we looked at what a beautiful night it was and decided to go for a cruise. Shortly after we shoved off I lost the port motor. It was getting dark and it sort of ruined the whole mood. Limped back to the dock on one motor, hosed her down, closed it up, and went home in a bad mood.
Early this morning I woke my 13 year old son up and told him we were going to go fix the boat, or at least try to find the problem.
Got there in the daylight and found that the carb wasn't getting any gas. Dropped the filters and they looked good, but changed them anyway. Still no fuel. Pulled the Garmin GFS 10 fuel sender off line and replaced it with a brass nipple I put together. Problem solved!
Got to give Garmin a call this week and ask them how, or if, I can clear the thing. I have a filter right outside the tank inline before the sender so I don't know how it could have gotten clogged.
I do love have the fuel senders and being able to see fuel flow in real time on my GPS screen, but now I'm a little nervous about having these things inline if they can fail like this. I am also a little skeptical about their plastic bodies. While winterizing last fall I noticed a hairline crack in the one on the starboard motor, called Garmin, and although it was out of warranty they replaced it at a decent price.
Thinking now that I should have gone for the Flo Scans. Not sure if the quality of their senders are all that much better, but at least they are metal.
 
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#1,046 ·
dwna1a said:
Im going to the boat tomorrow, may I show this thread to my slip neighbor and engine guy? I still think it's a timing issue, but you changed the coil and switched the ICM. That leaves the pickup and I would have sworn it was the ICM
Click to expand...
Sure, I'd be grateful if you asked. Thanks,
J
 
#1,047 ·
JVM225 said:
If your bilge is like mine you're not going to look at the plugs to get them out. You'll have to do it by feel. They aren't really as hard to get to as they seem.
Check the plugs over and make sure you don't have a cylinder that is misfiring. If you do, it may be time for a compression check.
Hopefully it is a simple problem with the pick up, cap, or rotor. But it could be a bad cylinder if it isn't making enough power. The compression check will tell you if something more serious is wrong.
Click to expand...
Yes, it's those plugs on the side of the tank that are the toughest. I hope that I'll be able to able to feel my way around and get the new ones in.
 
#1,048 ·
Here are a few pics...

Image


Image


It's all done!! I love the way it came out. I also installed a new Kenwood head unit with helm remote and 4 speakers. I put component speakers in the cockpit. The subs are in the original spots and the tweeters are up near the front seats. It ROCKS! No amp or subwoofer yet. It's amazing how they fill the cockpit with sound. Now I'm onto installing a new 3 bank 20 amp charger and putting the pulpit back on with the new windlass.


Sent from my iPad using Tapatalk
 
#1,050 ·
Not sure what the round trim is called. It attaches to the wood for the curtains with staples. I just reused it, it was all in good shape. The grey carpet in the forward berth is marine rubber backed carpet, and yes I installed it.

I was really nervous about attempting this on my own, it's actually very easy to do. Just time consuming.


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#1,053 ·
Did you do the carpet on the sole too? Regarding the headliner, how did you deal with the endings that come up to the vinyl boxes around the side windows?

I'm glad to hear you found it not too difficult. My headliner is in near perfect condition but it sure does dress it up a bit to not have the monkey's ass type headliner.
 
#1,054 ·
Do you have a photo Bucket account or something similar we can attach to? That way we can see when you upload new photos. Excellent work, by the way! I am working on my 88 300DA right now, but my 88 300WE is next! I am planning on using your interior shots to help put mine back together. I bought as someone's abandoned project.
 
#1,056 ·
The carpet on the sole I didn't touch, it's in great shape and just needed a good cleaning. I removed all of the window boxes and closet so I could get everything.


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