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Dr Gonzo
Posted: Saturday, January 30, 2010 10:26:03 PM
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Oh one more thing ...you cant use automotive cams in marine engines and they have to be machined on a 112 degree center. Anthing less and you will suck water back into the combustion chambers thru reversion when you shut the engines off ...and for god sakes dont use hollys. Stay with the carter A.F.B's and If your smart you will change out the perko fuel strainers and replace them with MerCruiser water seperating fuel filters. Their much safer and easyer to change.

Dr Gonzo
NightMoves
Posted: Sunday, January 31, 2010 3:34:14 AM

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AMEN on the spin on filters

Mike
Fastjeff
Posted: Sunday, January 31, 2010 5:41:24 AM

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..."The one thing I found out real quick about marinettes as compared to other boats i've run of the same size is that they are like kites. A good strong wind while docking will blow you around like a paper airplane. "

Well said!

Don't know why you're going through all that trouble and expense of having your motor blueprinted when you can buy a rebuilt long block, drop it in (with your accessories added) and run it for far less money. Moreover, a new long block from a reputable firm (such as Vesuvio) is more reliable; they dyno test and run in every motor before shipping it--no cam break in period required. Can't beat that.

Finally, there's no need of a high volume oil pump in most engines, especially in a marine cruising application. That will only wear the distributor/ oil pump gears out sooner for no advantage. Old, worn engines that can't maintain oil pressure can benefit from one, along with all out race engines (in some cases), but not a new, properly built engine.

Jeff

"There is another class of coloured people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs -- partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs." Booker T. Washington
Dr Gonzo
Posted: Sunday, January 31, 2010 3:40:16 PM
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Jeff...yea I thought of the long block idea but the shipping charges for 2 long blocks plus the core return shipping charges doesnt really save me any money in the long run and its a pain to crate cores back up and ship them back out . I'm getting a deal at 7000.00 for both engines complete with all the extras. I cant beat that deal and I know Greg's work is top notch. Greg has been getting a lot of chrysler 440-M engines in for rebuild over the last 2 years from different marinas and marine mechanics in both michigan and northern ohio. Whats nice is that we can carry the long blocks in thru the side window and install them in the engine bay and then he will finish the top end after that. As far as the oil pump goes ...he is using one that he feels will do the best job for the engines duty.

Besides ...my baby is worth it ...I love this boat with a passion and it make me feel good inside knowing that I took a neglected 37 that sat unused for 13 years in a covered well and brought her back from the dead.

Dr Gonzo
Fastjeff
Posted: Monday, February 01, 2010 4:37:41 AM

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Through the side windows! Yikes.


Just don't allow Gregg to put those high volume oil pumps in. That's a mistake.

Jeff

"There is another class of coloured people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs -- partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs." Booker T. Washington
Dr Gonzo
Posted: Monday, February 01, 2010 5:31:50 AM
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Jeff...Have you or anyone else installed a remote oil filter system on a boat ? I want to install one for each engine on the bulkhead between both motors. Changing the filter on a 440 sucks due to the fact that it sits sideways and I cannot stand oil spillage in the bilge. Ill try and take pic's of the project today or tomorrow when I get the chance.

Dr Gonzo
Roger2
Posted: Monday, February 01, 2010 8:05:03 AM

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One way to avoid oil spillage when removing oil filter is to slip a large zip loc bag up over the filter then unscrew. Break the filter loose first.

Roger

The trouble with getting old, There is a lot of info in memory, I either can't find it or don't trust it if I do!
jralbert
Posted: Monday, February 01, 2010 10:59:29 AM
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Dr Gonzo wrote:
Jeff...Have you or anyone else installed a remote oil filter system on a boat ? Dr Gonzo
I installed a remote filter on starbd engine where the regular filter was a major pain to access (needed to remove couch to get at the filter). I let the yard decide where to put it (a mistake) and it wound up on fwd bulkhead. Slightly inconvenient but still reachable. I still keep a pan under it in case it leaks.
Installer was lazy and didn't support the heavy hoses so that after sevl years, there was so much strain where the fitting met the filter, it leaked and I was lucky to catch it just as it cut loose. So, new fittings were made and the line is now supported in two places by heavy duty cable ties. No more strain.

The other filter is at the usual nearly 45 degree angle. I forestall serious leaks by holding a dedicated frying pan under the filter as it unscrews.

Useful when changing a filter, in addition to ziplock, are the sleeves used for home-delivering your newspaper. They are also useful as hand and arm protectors for messy jobs including painting.

I got the remote at West Marine - it was so long ago, I don't remember model but I think it was packaged for a Ford engine which is really weird. In my 32, there isn't much mounting room aft of the engines or even between them but the 'tween engine location would be nice if you can route the hose properly.

Joel Albert, Potomac MD
"Charlie B" - 32' FBS
docked Deale, MD
Fastjeff
Posted: Monday, February 01, 2010 11:39:00 AM

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Nothing wrong with a remote filter, but keep these things in mind:

1. You need to take ii easy on start up since it takes longer for the oil to build pressure thanks to the longer route it has to travel.

2. The hoses need to be the right kind for hot oil, and at least 1/2 inch ID.

3. The hoses need to be properly supported so they don't rub on anything sharp.

Any good hot rod supplier (Jegs or Summit Racing on-line) sell the appropriate adapters.

Jeff

"There is another class of coloured people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs -- partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs." Booker T. Washington
CaptWayne
Posted: Monday, February 01, 2010 3:13:37 PM
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On my 37' with the old 360's I had remote filters on each engine and a oil pump out Reverso system also. It was great and I could change oil in 30 minutes with filters and new oil ready to go. On the 37 I mounted the oil filters above the transmission and slightly behind and the on the frame behind the access doors. A heavy fish bag and both filters were in it and it was taken home and burnt out in the shop stove. When I put the new 454's in the oil filters were in the same place. Hi to everyone, Capt Wayne
Docsnow
Posted: Monday, February 01, 2010 4:28:45 PM

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Capt. Wayne,

Where Have U been long time since you’ve posted anything. All is well I hope. Great to see U back on the site Applause

Norm,

Big BigMs Live On Applause


Keep your hooks wet & your Butts dry also make sure your whistle stays wet
Fastjeff
Posted: Tuesday, February 02, 2010 6:22:35 AM

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Great to hear from you again, buddy! How's the airboat?

Jeff

"There is another class of coloured people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs -- partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs." Booker T. Washington
Dr Gonzo
Posted: Tuesday, February 02, 2010 9:25:24 AM
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In looking on the net, I found that Amsoil makes a remote system for marine use but its rather pricey. Hambuger racing makes what looks to be a nice billit aluminum adapter and remote filter mount however the hoses and fittings are not supplyed. I want to mount both of them in front of the genset on the bulkhead. A single filter system is all I need and it will allow me to run the 1 1/2 quart truck filters. If anyone else knows of a better remote adapter system please let me know.

Thanks for the input

Dr Gonzo
CaptWayne
Posted: Wednesday, February 03, 2010 10:38:33 AM
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Hi guys. Feeling better now. Just got back on line. Between the flood we had here a couple years ago and my health it has been interesting. Had to give up the Captain's license because the doc didn't think I needed to be taking people for a ride on the airboat and to make the wife happy I sold it d'oh! But anyway I think you are on the right track with using larger filters, it always helps to keep the oil a little cooler and great for engines.
Roper
Posted: Monday, February 08, 2010 7:40:18 AM
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Dr Gonzo,

From one of your posts on the previous page: "A marinette is a displacement hull...."

Marinettes aren't displacement hulls; they're all planing hulls. That's why they have V-8s and go 20+ mph. That's one reason the quest for better fuel economy is best kept modest; they are light for their length, but they don't have a hull form that's efficient at displacement speeds.

Best of luck with the project; sounds like fun will be had Applause
ComputerJoe
Posted: Monday, February 08, 2010 8:26:19 AM

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Technically your right BUT our hulls are not built to break any speed records being wide abeam. They are much more at home being slow and stable than planning through a serious chop. Much like someone who teaches is not necessarily a Teacher.

"When THE PEOPLE fear their Goverment, there is tyranny.
When the Goverment fears THE PEOPLE, there is liberty." Thomas Jefferson
Dr Gonzo
Posted: Tuesday, February 09, 2010 12:55:59 AM
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Sorry I should have used the term semi-displacement hull. While the marinette is a very light boat, the hull isnt really made to plane out...it was made to cruise hence the term cruiser. Yes...you can run the the hell out of it and make it get way up out of the water but after a certain point your not going to go really any faster.

I PULLED THIS OFF THE NET

A planing hull boat is basically a displacement hull boat at slow speeds, but at higher speeds these boats use their power to ride over their own bow waves - and propel forward instead of pushing water out of the way. Planing hull vessels often have "V" or flat hull designs. Finally, "semi-displacement" hull boats do not reach a plane like planing boats, but do transform from a displacement mode to climb their own bow wave. Larger boats, including trawlers or cruising yachts, often have semi-displacement hulls.

On a boat the size of a marinette you could double the horsepower and only increase the speed by 5-7 miles per hour.
Fastjeff
Posted: Tuesday, February 09, 2010 5:34:13 AM

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..."On a boat the size of a marinette you could double the horsepower and only increase the speed by 5-7 miles per hour."

True, but would that sucker launch!

What the good doctor said about doubling the hp and gaining very little speed is true. Before I wised up, we had a 28 foot Bayliner with a single SB Chevy. It was a high performance (315 hp) replacement for the standard, 260 hp Volvo Penta (also a SB CHevy), but the boat went no faster. The hull design was fine up to 25 mph, but it had massive hull drag above that. In fact, a guy across the river from us dropped a 454 BB Chevy in his similar Bayliner without a significant speed increase. Later hull designs of 28 ' Bayliners easily hit high 30s with a SB Chevy. They "look" similar (I did a photographic comparison) but they perform much diferently.


The bottom line: Proper marine hull design is a complex undertaking!

Jeff

"There is another class of coloured people who make a business of keeping the troubles, the wrongs, and the hardships of the Negro race before the public. Having learned that they are able to make a living out of their troubles, they have grown into the settled habit of advertising their wrongs -- partly because they want sympathy and partly because it pays. Some of these people do not want the Negro to lose his grievances, because they do not want to lose their jobs." Booker T. Washington
Doug Doty
Posted: Tuesday, February 09, 2010 11:42:34 AM

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I guess I disagree as well, I believe the Marinette hulls are planing hull boats. Based on the defination above, I think this supports planing more than semi displacment. Calling them displacment is way off.

I have seen many marinettes completely on plane, laying flat and flying, not climbing thier own bow wave.

Based on that any boat running slow enough to not break over is running in displacment mode but that does not mean they can not plane. My 2 cents




466 Bertram FDMY, " Easy Rider " Docked at Pier 99 in Warsaw Ky.
39 Marinette sedan " Forever 39" Docked at Pier 99 in Warsaw Ky.
2008 Sea Doo 150 Speedster... For sale.


Doug Doty
Posted: Tuesday, February 09, 2010 4:20:10 PM

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I have been reading on this and am more informed than opinioniated now than I was a while ago. Notice I did not use the word smart !!!

I am convienced our boats are planing hulls by defination. It is a little subjective because the definations are not short and sweet so it is ever so slightly argueable. but I will re-cap the points I took away below that make me feel as I do.

A planing hull on plane will have the water that has been displaced, knit back together rearward of the transom, Check yes !!

A planing hull boat will actually require less propulsion once it actually goes up on plane and begins to slide across the water. " not necessairly more fuel efficienciey " and these boats do in fact plane on top and once there can be powered down below what it took to get them on top and stay there so once again this supports the planing hull.

Another thing I read on the engineering site was that Semi Displacment hulls rarely would go more than 16 to 18 knots. I assumed this to be under a typical horsepower to weight ratio. I believe every Marinette ever built would exceed that and go faster easily with more power.

If your particullar boat wont achieve this there might be something wrong with either the power plant not producing the needed power or you might have too much from marine growth holding it back but either way the hulls on these boats certainly are of planing hull design.

A good example is my 466 Bertram, when I haul it out for work and re-do the bottom it will always give me 25.9 on the GPS and is on plane. If I let it sit too much through the summer it will pull down around 21.5 mph.



466 Bertram FDMY, " Easy Rider " Docked at Pier 99 in Warsaw Ky.
39 Marinette sedan " Forever 39" Docked at Pier 99 in Warsaw Ky.
2008 Sea Doo 150 Speedster... For sale.


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