1967 Glaspar won't trim out flat

[Valley Boater]

This is a difficult question to pigeon hole as it is both a boat and motor issue so I hope this is the proper place to post my question.

My son purchased a 1967 Glaspar with a 2001 Honda 40 hp with power tilt. The boat is rated for 90 hp max. We've had the boat on the water a few times and I don't think the boat is trimming out correctly. With the motor trimmed out as much as possible tight against the transom the boat is still riding high in the bow even with over 500 lbs of adults in the front seats. Under full power the water is breaking 2-3 feet behind front seats and we're looking "downhill". There is no pins in the motor bracket restricting the full power tilt.

I suspect that the problem is weight distribution as I believe the boat originally had a forward fuel tank as there is a chrome fuel access "port" on the bow along with the forward and reverse vents on the bow (the vents are also on the stern). This vessel now has a removable plastic 10 gallon fuel tank in the stern along with the 12 v battery and nothing under the bow except extra life vests. Yesterday we were only carrying 6 gallons of fuel to cut down on weight. My son was wondering if he would add to forward ballast to help trim the boat. There must be a better way than adding weight...

Any suggestions?

 

[ezmobee]

Re: 1967 Glaspar won't trim out flat

This is confusing. If the motor is "tight against the transom" that's trimmed IN. Also, like Bubba is questioning, if you're riding bow-high then how are you looking down hill?

My initial thought is you're underpowered and not enough weight in the front.

 

[greenbush future]

Re: 1967 Glaspar won't trim out flat

Need more pictures of the back of your rig please. Get one of the entire back of the boat showing the outboard in the down position. Down is all the way to the transom. You could have weight issues, soaked flotation foam, under powered outboard, the wrong prop. Get the pictures up and you should get some sound advice.

 

[Valley Boater]

Re: 1967 Glaspar won't trim out flat

Sorry for confusing downhill statement. The bow is riding high and to see the water below you are looking "down". The bow is pointed probably 20 - 30 degrees up from the surface of the water trimmed all the way in.

The soaked flotation got me thinking. The boat seemed dry except for a small puddle in the drain well while in the driveway before launching. However, after about an hour's boating (in the "bow up" position) I noticed that we had several gallons of water pooling in the stern. The new bilge pump wasn't wired up yet so we boated for a couple of hours without bailing. His boat sits outside uncovered (as per the previous owner) so wet flotation and shifting water between the floor and bottom could be part of the problem. I've hinted that he might want to consider putting the Honda on a newer hull! I'll get my son to send me some photos of the stern photos as requested as I live 3 hours away from his boat. Thanks for your input.

 

[ezmobee]

Re: 1967 Glaspar won't trim out flat

Finding an aluminum hull for that nice Honda sounds like a great plan

 

[southkogs]

Re: 1967 Glaspar won't trim out flat

My initial thought is you're underpowered and not enough weight in the front.

Ditto. You're boat needs another 20HP best guess. You're cuttin' along a few miles per hour short of planing speed. Will she plane out and level off with just one person on board?

 

[Valley Boater]

Re: 1967 Glaspar won't trim out flat

By my smart phone GPS, the boat was moving along at 22 mph at wide open (5400 rpm) on the Honda 40 hp. Here's a photo of the wake at full power.

My son is going to take a side photo of motor and we'll update.

 

[blackhawk180]

Re: 1967 Glaspar won't trim out flat

Looks like you're running heavy or need more ponies. I would be checking that floatation foam and run solo as mentioned. I would not recommend adding ballast to what appears an underpowered boat. Side pictures will help.

 

[BicBuck]

Re: 1967 Glaspar won't trim out flat

Guys, my Dad is the OP. Take a look at the attached photos. I was hoping pics out of the water would suffice? I can get some water shots this weekend, weather permitting. The boat is rated to up to a 95 HP motor, but thats a 1967 95 HP. I think a modern engine of that size would likely send us into orbit.

Assuming for the sake of conversation we are just a hair (or 20 horses) under powered, I should either get a new motor or hull. The motor is a 2001, running well and a gas sipper. The boat is pretty cool, but its been kept outside a long time and is starting to show the early signs of floor rot. What would be a suitable/desirable hull for a Honda BF40? We mainly just weekend cruise on local rivers, with some fishing and hopefully some skiing down the road. Is there a relatively inexpensive boat I should be on the lookout for? I'm assuming something lighter than what I presently have would do the trick?

https://www.dropbox.com/s/2ell8y9cgnknwd9/IMG_20130416_173103.jpg

https://www.dropbox.com/s/lcbarc814l4315k/IMG_20130416_173111.jpg

https://www.dropbox.com/s/9i7oqj69zexakfl/IMG_20130416_173119.jpg

https://www.dropbox.com/s/nj4xianow42b9s9/IMG_20130416_173144.jpg

 

[smokeonthewater]

Re: 1967 Glaspar won't trim out flat

mu GUT says that if you are getting 22 mph you MAY not actually HAVE a problem.... lets see a pic from the side taken from shore as you do a 'fly by'.....

Another thought is that if it IS actually running with the bow too high you MAY lave a long shaft motor on a short transom.

 

[ezmobee]

Re: 1967 Glaspar won't trim out flat

Another thought is that if it IS actually running with the bow too high you MAY lave a long shaft motor on a short transom.

I think we can rule that out based on the pics.

 

[smokeonthewater]

Re: 1967 Glaspar won't trim out flat

I think we can rule that out based on the pics.

AGREED! I hadn't noticed the links there :doh:

 

[southkogs]

Re: 1967 Glaspar won't trim out flat

...The boat is rated to up to a 95 HP motor, but thats a 1967 95 HP. I think a modern engine of that size would likely send us into orbit.

Probably not as bad as that, but what is more likely is that the bigger HP motor might over stress the transom if it's showing signs of rot or age.

Assuming for the sake of conversation we are just a hair (or 20 horses) under powered, I should either get a new motor or hull. The motor is a 2001, running well and a gas sipper. The boat is pretty cool, but its been kept outside a long time and is starting to show the early signs of floor rot. What would be a suitable/desirable hull for a Honda BF40? We mainly just weekend cruise on local rivers, with some fishing and hopefully some skiing down the road. Is there a relatively inexpensive boat I should be on the lookout for? I'm assuming something lighter than what I presently have would do the trick?

Fishin' and cruisin' - that 40HP on a nice aluminum hull would be a real winner. 40's tough for water skiing though. You can do it (I have), but you'll be workin' to get outta' the water. Lowest I like to ski behind is around 100HP (maybe 70).

Over in the Williamsburg area you should have all sorts of stuff to choose from though.

Welcome aboard!

 

[BicBuck]

Re: 1967 Glaspar won't trim out flat

Guys - been shopping around for a hull replacement option. Found a guy locally who has a 13" 1975 Boston Whaler that seems to be in good shape and is on the low side of what I'd expect price wise. Would that Honda be too heavy/too much engine for that boat?