Rebuild Detroit 671's or re-power with Cummins?
Posted: Sat Dec 15, 2012 7:45 pm
This is what I am dealing with right now.
The detroits would be re-built by a professional who has been in the business a long time. He does all the work himself. He uses non-turbo injectors (forgot the number) but he says this will minimize most of the smoke and many owners are happy with the results. includes wiring and gauges.
He offers a full 2 year warranty on all work and would stay on the job until everything performes perfectly. He has references that have his rebuilds running 15 years later.
His price is in the 20k per motor range.
I also have a friend who works for the local Detroit dealer, mostly works on generators though, but he has young kids and doesn't have time. But his buddies would rebuild and use all factory Detroit parts in their spare time, a couple of guys coming and going doing here and there as their schedule allows.
Probably a little cheaper but I question warranty and just dealing with multiple people, but I also hear they do really good work, as they should working for Detroit.
What about the capital gears?
Multiple people told me they are junk.. They work fine for me, both sides have the same 1 or 2 second pause before engaging in either direction.
Rebuild em or replace with what or just re-install and wait for issues.
I actually like the sound of the detroits at all speeds, my boat before this was a 33 well craft coastal with 3116 turbo Cats, those turbos would whine under load with awesome torque, miss that one..
Cummins would be factory rebuilds 450 hp mechanicals, about 25k per motor, new harness and gauges, with 2 year warranty. New gears about 4k each, installation about 10k.
The cummins are 1500 lbs lighter and burn 30% less.
I love the boat and have put much $ into upgrades already.
But I would like to upgrade to a sport fish soon.
14 meter Trojan or a 50 post.
I basically live on the boat may through September and do a lot of entertaining so a bigger boat more room 2 heads would be nice.
I thought cummins would be better for resale?
The detroits would be re-built by a professional who has been in the business a long time. He does all the work himself. He uses non-turbo injectors (forgot the number) but he says this will minimize most of the smoke and many owners are happy with the results. includes wiring and gauges.
He offers a full 2 year warranty on all work and would stay on the job until everything performes perfectly. He has references that have his rebuilds running 15 years later.
His price is in the 20k per motor range.
I also have a friend who works for the local Detroit dealer, mostly works on generators though, but he has young kids and doesn't have time. But his buddies would rebuild and use all factory Detroit parts in their spare time, a couple of guys coming and going doing here and there as their schedule allows.
Probably a little cheaper but I question warranty and just dealing with multiple people, but I also hear they do really good work, as they should working for Detroit.
What about the capital gears?
Multiple people told me they are junk.. They work fine for me, both sides have the same 1 or 2 second pause before engaging in either direction.
Rebuild em or replace with what or just re-install and wait for issues.
I actually like the sound of the detroits at all speeds, my boat before this was a 33 well craft coastal with 3116 turbo Cats, those turbos would whine under load with awesome torque, miss that one..
Cummins would be factory rebuilds 450 hp mechanicals, about 25k per motor, new harness and gauges, with 2 year warranty. New gears about 4k each, installation about 10k.
The cummins are 1500 lbs lighter and burn 30% less.
I love the boat and have put much $ into upgrades already.
But I would like to upgrade to a sport fish soon.
14 meter Trojan or a 50 post.
I basically live on the boat may through September and do a lot of entertaining so a bigger boat more room 2 heads would be nice.
I thought cummins would be better for resale?