Distributor Gear Failure on 454 Mag EFI
10-16-2017, 11:56 AM
#141
Attachment 571514
Total lost. Broken camshaft, pistons, block too also damaged crankshaft....
I need a new engine. I will post serial number, maybe someone knows where i can find same one.
Total lost. Broken camshaft, pistons, block too also damaged crankshaft....
I need a new engine. I will post serial number, maybe someone knows where i can find same one.
When and if you get your boat rinning, pls get a gps chartplotter. You can even get an app for your tablet or cell phone. Navionics U.S and Canada works very good as long as you have reception. There are plenty of used chartplotters out there for sale also. What happened to you was bad but it could have been much worse. Not being sarcastic or demeaning in any way Just looking out for ya. Pete
Last edited by veloc410; 09-21-2018 at 11:00 AM.
10-16-2017, 12:59 PM
#142
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Nope. Velvet drives run same direction as their engine. Many newer types can be reversed, but not that one. Some borg gear reductions run opposite output from input, but they don't make the same ratio in both output rotations. My trannys in the hatteras are that way. Engines turn in, props turn out, so my opposite rotation engine is on diff side than most.
10-16-2017, 01:11 PM
#143
Nope. Velvet drives run same direction as their engine. Many newer types can be reversed, but not that one. Some borg gear reductions run opposite output from input, but they don't make the same ratio in both output rotations. My trannys in the hatteras are that way. Engines turn in, props turn out, so my opposite rotation engine is on diff side than most.
10-16-2017, 02:07 PM
#144
Wow, way to bring back a post from the past. 
Thanks for the update though. I've been contemplating replacing the dizzys with MSD units for a while now, but have otherwise been running stock MerCruiser distributors.
FWIW: I replaced the bronze gear with a factory replacement gear and haven't had any problems in 8 years.
Thanks for the update though. I've been contemplating replacing the dizzys with MSD units for a while now, but have otherwise been running stock MerCruiser distributors.
FWIW: I replaced the bronze gear with a factory replacement gear and haven't had any problems in 8 years.
10-16-2017, 02:41 PM
#145
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I am not sure. He pulled engine with boat in the water still. We will know for sure when the prop is there to see. I think mebbe engine let go and he mistook the noise-vibration for using prop as a depthfinder...I really doubt hitting bottom can snap 2 rods like that. If it did, prop will probably be seriously trashed. Those back 2 rods just look like the bearings failed at speed and snapped them.
Last edited by dereknkathy; 10-16-2017 at 02:44 PM.
10-16-2017, 06:56 PM
#146
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Yep im goingto take engine from jasper.
10-16-2017, 07:04 PM
#148
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Caldera,
When and if you get your boat rinning, pls get a gps chartplotter. You can even get an app for your tablet or cell phone. Navionics U.S and Canada works very good as long as you have reception. There are plenty of used chartplotters out there for sale also. What happened to you was bad but it could have been much worse. Not being sarcastic or demeaning in any way Just looking out for ya. Pete
When and if you get your boat rinning, pls get a gps chartplotter. You can even get an app for your tablet or cell phone. Navionics U.S and Canada works very good as long as you have reception. There are plenty of used chartplotters out there for sale also. What happened to you was bad but it could have been much worse. Not being sarcastic or demeaning in any way Just looking out for ya. Pete
10-16-2017, 07:23 PM
#149
Nope. Velvet drives run same direction as their engine. Many newer types can be reversed, but not that one. Some borg gear reductions run opposite output from input, but they don't make the same ratio in both output rotations. My trannys in the hatteras are that way. Engines turn in, props turn out, so my opposite rotation engine is on diff side than most.
