REPOWER UPDATE
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- prowlersfish
- 2025 Gold Support
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- Location: Lower Chesapeake Bay ,Va
Repower,
ran the boat last night for about an hour, I have a whine in the stb raw waterpump, not sure at this point if its an impeller or the bearings, these pumps came off of the 305's and are standard mercruiser pumps. the pump on the stb engine was new when I bought the boat a year and a half ago and it has less than 30 or so hours on it.
The port stuffing box got hot as well, thats an easier fix, I had really tightened the stuffing boxes when I pulled the motors to prevent any drips when I painted the bilge.
I ran her up to 1700 rpm last night and was reading 11 knots on the GPS.
, the stuffing box temp bugged me so we just cruised a bit and then brought her home.
It is awfully nice to be back on the water
OIL FILTERS
no problem on the subject in this thread, just seemed it was taking on its own life
ran the boat last night for about an hour, I have a whine in the stb raw waterpump, not sure at this point if its an impeller or the bearings, these pumps came off of the 305's and are standard mercruiser pumps. the pump on the stb engine was new when I bought the boat a year and a half ago and it has less than 30 or so hours on it.
The port stuffing box got hot as well, thats an easier fix, I had really tightened the stuffing boxes when I pulled the motors to prevent any drips when I painted the bilge.
I ran her up to 1700 rpm last night and was reading 11 knots on the GPS.

It is awfully nice to be back on the water
OIL FILTERS
no problem on the subject in this thread, just seemed it was taking on its own life
1984 Silverton 37C
Silver Lining
Scott
Silver Lining
Scott
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- Location: Ft Lauderdale Fl
Alright gettaway now you're killin' me, we are in the middle of a snow storm and are expected to get 6-10 inches. Beautiful pics though, now it's time to go and kill that bottle of Vodka !!!!!!!!!!
1973 F30 Clean Machine
' Goomar '
(Italian for 'my mistress')
"It's only an island if you look at it from the water" -- Chief Brody
' Goomar '
(Italian for 'my mistress')
"It's only an island if you look at it from the water" -- Chief Brody
- prowlersfish
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- Joined: Sat Nov 05, 2005 6:56 pm
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Congratulations on the successful installation of your new power. I love those in line six engines. I'm interested to know if they'll get you on plane and how hard you have to push them to get you there. Have you figured out the prop size for max rpm on plane or are you set up for displacement only?
Keep us posted.
Keep us posted.
Paul
"Cruise Control" 1978 F-26HT
"No Control" 2012 9' Grand RIB
"Cruise Control" 1978 F-26HT
"No Control" 2012 9' Grand RIB
Hi all,
well I spent the weekend at the boat, cleaning up the install mess and running her a bit more. Looks like I'll have to re prop in order to get full RPM, I think I'll also have to regauge, the Tach seems to be reading low, temp high and no oil pressure (need a dual gauge sending unit)
either way, she runs great, my thermal thermometer confirms cool running temps and I installed a temporary direct reading oil pressure gauge and I have good oil pressure.
GPS recorded 16 knots at full throttle.
here are a few photos





well I spent the weekend at the boat, cleaning up the install mess and running her a bit more. Looks like I'll have to re prop in order to get full RPM, I think I'll also have to regauge, the Tach seems to be reading low, temp high and no oil pressure (need a dual gauge sending unit)
either way, she runs great, my thermal thermometer confirms cool running temps and I installed a temporary direct reading oil pressure gauge and I have good oil pressure.
GPS recorded 16 knots at full throttle.
here are a few photos





1984 Silverton 37C
Silver Lining
Scott
Silver Lining
Scott
- Commissionpoint
- Active User
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- Location: Diamond Point on Lake George, NY
16 knots. Not bad at all. I wager you'll get close to 20 after you re-prop. Loving the looks of those engines and your install. Very nice.
1978 F-32 "Eclipse"
Merc 305 SBC's
1.52:1 Borg Warners
1983 Correct Craft
Commander 351 Ford (PCM)
1:1 Borg Warner
There are 350 different varieties of shark, not counting loan or pool.
Merc 305 SBC's
1.52:1 Borg Warners
1983 Correct Craft
Commander 351 Ford (PCM)
1:1 Borg Warner
There are 350 different varieties of shark, not counting loan or pool.
-
- Moderate User
- Posts: 737
- Joined: Tue Nov 17, 2009 10:52 pm
- Location: Ft Lauderdale Fl
- prowlersfish
- 2025 Gold Support
- Posts: 12725
- Joined: Sat Nov 05, 2005 6:56 pm
- Location: Lower Chesapeake Bay ,Va
I have no way of knowing fuel burn at this point, the tabs were set at nuetral. I dont have a bunch of stuff on the boat, the fuel is about 2/3 full and full water. empty holding tank and just me aboard. (about 170 lbs)
the boat tends to jump right up to full speed , I have heard the 165s have a good amount of torque compared to its HP. seems to be true, the engines barely lug when shifted into gear.
anyways, I cruised for a while at 10 11 knots and for me it seemed to be the sweet spot as far as feel and sound. We are getting rain today, but saturday was a beautiful day to run the boat.
I'll keep posting updates, there are some general house cleaning items to still attend to in the engine room, like those loose wires running every where, the new floor board I made for the engine room, they are actually upside down in the photos, I put them in that way so I wouldnt screw up the good side when I did the install.
and things like coolant overflow, relocating the fuel filters and battery charger.
Anyways I really appreciate all of ya'll interest and input in this project !
the boat tends to jump right up to full speed , I have heard the 165s have a good amount of torque compared to its HP. seems to be true, the engines barely lug when shifted into gear.
anyways, I cruised for a while at 10 11 knots and for me it seemed to be the sweet spot as far as feel and sound. We are getting rain today, but saturday was a beautiful day to run the boat.
I'll keep posting updates, there are some general house cleaning items to still attend to in the engine room, like those loose wires running every where, the new floor board I made for the engine room, they are actually upside down in the photos, I put them in that way so I wouldnt screw up the good side when I did the install.
and things like coolant overflow, relocating the fuel filters and battery charger.
Anyways I really appreciate all of ya'll interest and input in this project !
1984 Silverton 37C
Silver Lining
Scott
Silver Lining
Scott
oh, and that home insulation board on the bottom side of the hatches, will be gone very soon. When I had the stainless drip pans made, I had the sheet metal shop cut stainless panels to fit them hatches. I plan to put sound deading insulation and covering the bottome side with the stainless. However, I'll tell you the engines are surprisingly quiet now.
either way, they will look much better with the half a&& crap gone.
either way, they will look much better with the half a&& crap gone.
Last edited by gettaway on Tue Jan 24, 2012 12:47 pm, edited 1 time in total.
1984 Silverton 37C
Silver Lining
Scott
Silver Lining
Scott
- aaronbocknek
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