CaptRonn
Well-Known Member
- May 25, 2016
- 1,550
- Boat Info
- 1999 Sea Ray 400 Sedan Bridge
- Engines
- Convert fuel into noise
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I used the foaming spray.Sorry to nit pick but did you clean the evaporator with a no rinse spray (that's what I use), or did you flush/acid clean the condenser coil, or both?
Excellent. I have found that's a good maintenance routine on these units. The evaporator fins can get gunked up pretty easy and a good spray foam cleaning does wonders.I used the foaming spray.
Excellent. I have found that's a good maintenance routine on these units. The evaporator fins can get gunked up pretty easy and a good spray foam cleaning does wonders.
What Spray foam did you use? Need to get this accomplished on both units as well as a thorough vacuuming mid season.I used the foaming spray.
What did it calculate the deviation to be? I had to move my heading sensor just a bit when I removed the stateroom bunk. These posts finally got me to recalibrate it a few days ago. It reported a deviation of 20, which implies there is probably too much metal around it. It's now closer to the vacuflush pump than it used to be. Manual recommends to relocate it if the deviation is more than 15. But it's now just about spot on with the compass at all headings except for a small area where it's off by about 4 degrees. So I'm inclined to leave it as is and call it done.
Nu-Calgon no rinse evaporator spray.What Spray foam did you use? Need to get this accomplished on both units as well as a thorough vacuuming mid season.
Yes the 8" CD176. Although Walker now recommends to use the 9" CD177 for our engines. But I just rotate through a couple pairs of the 8" annually. I only know one person who actually switched to the 9". He says it sticks out pretty far. The little filter is CD180I’ll come back to the compass discussion shortly. In the mean time who has the airsep filter part numbers handy for the Cummins 6CTA’s? I think the main is 7-1/2 x 8” and is the Walker CD176? Is that right? And what about the turbo airsep?
mine was 3 degrees so not too bad. It doesn’t agree with the compass at all headings however and that drives me nuts. But really, I only use the AP for holding course, not following headings.
You’ll never get a magnetic compass to agree 100% with an electronic compass.
I did compass swings on aircraft wet compasses. I would put the airplane (or helicopter) on a compass rose and perform the procedure, then record the cardinal headings and deviation on the compass card.
The wet compass is for reference only.
Yes the 8" CD176. Although Walker now recommends to use the 9" CD177 for our engines. But I just rotate through a couple pairs of the 8" annually. I only know one person who actually switched to the 9". He says it sticks out pretty far. The little filter is CD180
The plotter lets you select whether the bearing mode is displayed in magnetic or true. Sounds like it may be possible yours is set to true.So if my wet compass and my plotter GPS are 14 degrees different, that’s ok? Looks like I live and boat about 11-12 degrees of negative declination. Is the GPS based of true north? Should I match the AP with the GPS?
So if my wet compass and my plotter GPS are 14 degrees different, that’s ok? Looks like I live and boat about 11-12 degrees of negative declination. Is the GPS based of true north? Should I match the AP with the GPS?
Clear as mud! I've got a 2 hour cruise coming up this week, so I'll have ample time to play with fine tuning the values further...
Good deal. Just don't try to align the plotter with the wet compass perfectly.
Right. Thanks for clarifying that point for me. At this point, I just want my boat's icon on the Axiom to point in the same direction as the heading line, so it doesn't look like I'm driving a junker that needs a frame alignment!
What CaptRonn says... Don't worry about where the boat is pointed... look at the track it should parallel your intended course.Depending on wind and current, it may not exactly line up. I've flown jets in the flight levels with 160 knot crosswinds that gave a large crab angle. We actually get that in boats depending once again on wind and current, just not to the large degree. So a slight crab angle wouldn't be out of the question.
What CaptRonn says... Don't worry about where the boat is pointed... look at the track it should parallel your intended course.