View Full Version : Cat 3126
03-12-2012, 08:26 AM
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
2" Stainless Shaft
03-12-2012, 10:21 AM
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.
03-12-2012, 06:04 PM
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!
03-13-2012, 02:58 AM
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.
03-14-2012, 08:08 AM
Hours are just under 6K...seems a bit high..but Ive heard theyll go over 10K if properly Maintaned...
what do you think?
vBulletin® v3.8.7, Copyright ©2000-2013, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO