EKM
Active Member
All cleaned up and ready for reinstall....awaiting SBMarine parts shipment. Is it worth pressure testing the tubing bundle before install and if so what pressure?
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Bill, my port engine idles rough, and have to move the throttle up to sync with starboard, is there anything you can recall in this forum that addresses that?Darker then normal. Possibly overpropped (since it's a Sea Ray more like probably) and owner likes to go fast all the time. Not a deal breaker for me at 800 hours but fully loaded WOT test is in order as soon as possible and then probably prop pitch reduction
Some good discussion on this topic here:
https://www.sbmar.com/community/topic/6cta-discoloration-on-turbo-pipe-and-cooler-cause/
Not to speak for Bill, but I have that same issue. I chalk it up to old, streched throttle cables in need of a bit of adjustment. Curious as to what others say.Bill, my port engine idles rough, and have to move the throttle up to sync with starboard, is there anything you can recall in this forum that addresses that?
It's pretty easy to adjust the idle rpm. What's both your starboard and port idle rpm? Over the years I've settled on 625-650 to smooth everything out. But it does increase a bit as the engine warms up. I adjusted the idle when warm. Then when I start it cold it's often too low and I use the throttle to get it back to 625 until it's warm.Bill, my port engine idles rough, and have to move the throttle up to sync with starboard, is there anything you can recall in this forum that addresses that?
It's pretty easy to adjust the idle rpm. What's both your starboard and port idle rpm? Over the years I've settled on 625-650 to smooth everything out. But it does increase a bit as the engine warms up. I adjusted the idle when warm. Then when I start it cold it's often too low and I use the throttle to get it back to 625 until it's warm.
since you have straight drives the port idle screw is on the outside of the engine. Hard to access. My guess is no one ever adjusted it because of that. I think I posted my formula to accessing it somewhere here. But if you remove the air pipe between the aftercooler and the engine you can access it fairly comfortable. It means I am removing and connecting that pipe until the idle is where I want it. It's not bad. I don't use the clamps when I do that. I just slip the pipe in and out of the hose pieces.
You can practice on the starboard. Get that muscle memory thing working for you. Ha!Thank you Bill, that makes a lot of sense. It’s just the Port of course.
The tach inputs power, ground, the rpm pickup signal and a backlighting signal. If you are getting an rpm reading then the problem is all inside the tach.Looking for some help. My port engine hour meter stopped working on my tach today. Everything else on the tach works fine. Is there somewhere on the motor it’s getting its signal from? 2003 mechanical version. Thanks
Ended up replacing one tubing bundle due to small leak. Leak down took about 3 hours from 12psi to 0. This was the tube bundle that needed a lot more force to remove so probably what caused the leak. All painted up and ready for install. The new tubing bundle was a tight fit and had to be tapped in place. The original unit slide right in with no force.Both out....so put them on three 4x4 blocks and used a hand jack against an unmovable object. The second one was a little more difficult to get moving. Under load, I tapped the housing with a hammer and if was free. I ended up having to move the core in and out a few times and clean each side before it would slide out. The professionals use a aluminum puck the same size as the core for a push plate. I used an aluminum plate that I had to use as a push plate. Pic is the uncleaned cores as removed with my push plateView attachment 86288
Your saying I'll have to probably replace the tach and that meter will start at zero then?The tach inputs power, ground, the rpm pickup signal and a backlighting signal. If you are getting an rpm reading then the problem is all inside the tach.
Your saying I'll have to probably replace the tach and that meter will start at zero then?
@techmitch dumb question here....can you wire them backwards and make them take hours off?