Cat 3126

joelucci33

Lieutenant Commander
Joined
Sep 1, 2011
Posts
205
Likes
25
Location
Merrimac Valley, MA
Website
www.nepoutdoors.com
Reviews or opinions on this set up...Ive heard some good and some bad about the 3126
boat is a 84 BHM 31

Engine : 2002 Cat 3126

Tran : Twin Disc 506-1

Reduction 2.5:1

Wheel 26"x25"

2" Stainless Shaft

thanks
 

Blitzen

Admiral
Joined
Sep 1, 2011
Posts
5,637
Likes
5,959
Location
Sumday Isle, RI
Boat Make
Flowers Boat Works 46 hull #1, Flowers Boat Works 36 hull #1, Wayne Beal 28 Hull #1, Repco 30 1968,
The 3116 in the higher hp range was a real problem child for Cat. The 3126 seemed to escape many of the problems. As with any engine it needs to be maintained and run properly. With these two engines valve lash and timing are important and require a special set of tools to do the job properly. Due to the cost of these tools many independant techs don't have the tools to do this job. If you can do a sea trial on the boat a few things to look for before you get a good Cat guy to look things over, make sure the engine turns up to rated RPM and take note of the amount of water, fuel and gear on the boat. Look for black smoke when running. Make sure the temperature stays fairly steady form cruise to WOT and does not rise above 200 degrees. Look at the exhaust water at start up and when up to normal temp for oil in the water. Try to find out where the engine was run for most of the hours, idle, cruise or both.
I know of a few lobster boats that have them and get 5 to 7K hours no problem.
 

captainlarry84

Rear Admiral
Joined
Sep 13, 2011
Posts
1,295
Likes
239
Location
Freeport NY
Boat Make
KristenFormer Charter Captain
Good Choice

All good

Engine : 2002 Cat 3126 GOOD POWER most likely a 350HP

Tran : Twin Disc 506-1 Excellent gear & plenty strong for that HP

Reduction 2.5:1 CORRECT Reduction Gear This is the Gear ratio that makes the 31 BHM run like it should

Wheel 26"x25" Excellent size correct diameter & pitch ratio

2" Stainless Shaft Again Correct.

Make him an offer if the rest of the boat was done as correctly as this it should be a diamond!
 

traditions

Rear Admiral
Joined
Oct 9, 2011
Posts
1,479
Likes
798
Location
mid coast maine, muscle ridge channel
Boat Make
38 Holland
That wheel sounds kind of small.31 bhm with 260 Cummins 2 1/2 to 1 gear turning a 26x 28 4 blade inside a cage.Maybe the size and weight of the 3126 compared to the small b series.Should be a good sea boat with that heavy engine in her bildge.
 
Top Bottom