Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-07-2023, 03:09 PM   #1
Ensign
 
Join Date: Aug 2023
Posts: 5
Default !998 4100 scr

I've set my sights on a 1998 4100 with Cummins 6TBA's @ 1050 hrs. after passing on a 3700 scr that needed new stringers, cabin floor, and motors. I will be getting the 4100 surveyed and will have a diesel mechanic look at the engines. Is there anything that i should be looking out for on these boats? any idea what the fuel burn is at cruise? I have a long ride home if i purchase it.
Upon initial inspection the only issues I noticed were:
- no drain plug for bilge
- rear cabin has hatch in floor (to access shower sump). the screws/nails that
attach one side of the lip around the opening to support the hatch came loose. did not feel or see any wood rot underneath.
- generator runs but does not produce any power (not too concerned with this).
__________________

wendellbee is offline   Reply With Quote
Old 09-07-2023, 03:12 PM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Essex, Maryland
Posts: 10,324
Default

Best wishes and let us know if you get it.
__________________

__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2

Mike
mmwjr is offline   Reply With Quote
Old 09-07-2023, 09:14 PM   #3
Moderator

 
shrew's Avatar
 
Join Date: Apr 2008
Posts: 5,624
Default

Maxum made the cleats for those sole hatches by screwing from the top. So when you step on the hatch, you're entire weight is suspended form the screw threads. It's a poor (lazy) design. What I did is remove one screw, drill through both the sole and the cleat, then through bolt with 316SS bolts, washers, lock nuts and a counter-sunk flat head bolt. 8 total (2 for each side).

A drain plug can be installed. I'd hog out some of the transom wood, and back fill it with thickened epoxy before installing the through hull.

Marine generators are all problematic.

fuel burn...LOL!!! Well, there's always golf
shrew is offline   Reply With Quote
Old 09-08-2023, 07:39 PM   #4
Ensign
 
Join Date: Aug 2023
Posts: 5
Default

i know fuel burn is a joke. just want to estimate how far i'll get when heading home before needing to refuel. good idea of putting bots thru the floor. definitely will do that as one of the fall projects if it passes the survey. thx
wendellbee is offline   Reply With Quote
Old 09-09-2023, 02:37 PM   #5
Lt. JG
 
Join Date: Jan 2021
Location: Seal Beach
Posts: 42
Default

Stolen from Cummins site:
FUEL CONSUMPTION - PROP CURVE
RPM Litres/hr Gal/hr
3000 75.8 (20.0)
2800 59.6 (15.8)
2400 37.9 (10.0)
2000 24.5 (6.5)
1800 18.7 (4.9)
1600 13.6 (3.6)
1400 10.2 (2.7)
1000 5.1 (1.4)
800 3.4 (0.9)
600 2.2 (0.6)
Jorgeinseal is offline   Reply With Quote
Old 09-09-2023, 09:14 PM   #6
Ensign
 
Join Date: Aug 2023
Posts: 5
Default

Thanks for the chart. Not a sipper but way better than the 460’s I had in my Chris craft crown 340. Until I’m confidant with what the fuel gauges show, I’ll use worse case numbers on the maiden voyage
__________________

wendellbee is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 06:04 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.