Brand new 1995 Nautique hull |
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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???
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former skylark owner now a formula but I cant let this place go
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ArtCozier
Platinum Member Joined: April-25-2012 Location: Orlando FL Status: Offline Points: 1023 |
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The strut should be adjusted so that the centerline of the shaft will be exactly in the center of the shaft log. That is to say, the centerline of the barrel of the strut should "aim" at the center of the shaft log. The engine should then be positioned so that the center of the output flange on the transmission should is on that center line and the flange is exactly perpendicular to the shaft centerline.
At the same time, the engine mounts need to be adjusted so that the engine is not in a "bind." That means that the weight of the engine should be evenly distributed among the mount pairs. You don't want it to be like "a table with a short leg." In the factory we have a neat little laser device that we stick inside the barrel of the strut and when mounting the strut we make sure it is aimed at the center of the shaft log. Sort of like a laser boresight for a firearm. |
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"Art"
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Sorry but I feel you are wrong. Bad alignment will cause a binding in the cutlass and not allow the drive assembly to vibrate. |
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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i think my question marks said all best
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former skylark owner now a formula but I cant let this place go
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Is there a target that's placed in the bore of the log? How big is the laser dot? Just wondering what you aim at and how close you come to the alignment?? I stick a piece of tubing in the strut (no cutlass) sized for it's bore and at the log a bushing. The result is NO guesswork on where the laser dot is. BTW, it's cheaper too and fool proof without the mentioned guesswork!! In the old days, the Meloon's would have appreciated a simple cheap device! What will all those fancy engineers think up next?? |
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ArtCozier
Platinum Member Joined: April-25-2012 Location: Orlando FL Status: Offline Points: 1023 |
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Pete, the laser transmitter is the diameter of the shaft and it is pushed into the cutless bearing before the strut bolts are tightened onto the hull. In the recent boats, there is a flat, vertical "step" in the bottom where the shaft goes through. Its flat side faces the strut and is perpendicular to the centerline of the strut. The "shaft log" is simply a ninety-degree thru-hull fitting.
They mark the center for the hole for the log but they don't cut the hole yet. Then they turn the laser on and aim the strut at the center mark for the log, tightening the strut bolts evenly while holding the strut on aim. Clear as mud? I wish I could draw you a diagram. Perhaps I can photo the process sometime when I'm in the factory, if you will teach me how to post photos here. Or, you can PM me your email; I can handle putting photos on regular email! Pictures far outdo words when describing this sort of thing. |
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"Art"
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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It's a laser instead of a tube Pete, what's the big deal? What happens when a forklift runs over your tube??
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Art,
Thanks for the explanation. I did understand the concept but was just amazed at the expense for something that should be as simple as a tube with a center punch point on the end. Now all that's needed is to make sure the guy with the hole saw is on the mark and can drill straight! I feel the next step for the engineers is to talk with Fanuc about setting up a drill motor on the end of one of their robots. Program in the coordinates, have the fanuc home on the strut and then go for the hole!! Kevin, Set up tooling should never be laid on the floor. In most companies it would be grounds for termination. Also what would be the reason to have a fork lift in the area? |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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Tubes roll. Things happen. The world isn't a perfect place.
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Toertel
Gold Member Joined: August-26-2013 Location: Atlanta Status: Offline Points: 775 |
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Hollywood, be carefull with lasers!
On TV I saw this Goldfinger guy almost cut a guy in half with a laser |
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1994 Sport Nautique
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7946 |
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Who said an engineer made that laser tool up and not the guys that install the struts? Sounds like a decent method. I get free laser pens in the mail occasionally. Big expense?
That's got to be the nice NWZ out there. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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M3Fan
Grand Poobah Joined: October-22-2005 Location: United States Status: Offline Points: 3185 |
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Maybe the nicest 94-96 at least |
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2000 SN GT40 w/99 Graphics/Gel
2016 SN 200 OB 5.3L DI https://forum.fifteenoff.com |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13510 |
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The first inboard shaft log was aligned with a tree branch. Keep it original Pete!
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Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
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Is it like this ?
https://youtu.be/US6_VFTLVE4?t=3m50s I trimmed the video to start at 3:50, but it's really 4:20 (seriously) where it gets relevant to this discussion. |
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ArtCozier
Platinum Member Joined: April-25-2012 Location: Orlando FL Status: Offline Points: 1023 |
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Yikes, that's what happens when you give a waterskier/wakeboarder a script and turn him loose in the factory! A guy drops an engine into a hull with a hoist, and Mr. Narrator thinks it's already within 0.003". Too much energy drink! It does "sort of" show the procedure.
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"Art"
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Brian,
Thanks for the video. I have seen it before and always notice when he pulls the "laser alignment tool" out of the cutlass how sloppy a fit it is. It doesn't take much trig to know what slop means at a 18" distance. Kevin, A tree branch works too. Before getting a length of tubing, I turned down a length of Ash and then set up my dial indicator to make sure it ran true through it's length. |
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fanofccfan
Platinum Member Joined: December-13-2009 Location: North Bend NE Status: Offline Points: 1722 |
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I am learning lots of new stuff in this thread.......Hollywood has a real name? Kevin? don't ever recall seeing that.
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JMurph
Gold Member Joined: January-06-2006 Location: Maryland/NC Status: Offline Points: 738 |
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Kevin is his stage name.
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upsman
Groupie Joined: June-03-2013 Location: Malvern, Ohio Status: Offline Points: 57 |
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Motor is put in and done. Is there a fitting that goes on the raw water pickup to adapt to the one inch inlet hose.
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fanofccfan
Platinum Member Joined: December-13-2009 Location: North Bend NE Status: Offline Points: 1722 |
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I assume you are referring to the brass pipe fittings and hose barb fittings?
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Most will use a 3/4" elbow and a 3/4" nipple with threads on one end. The 1" hose will go over it. |
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Bri892001
Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4945 |
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Like this?:
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upsman
Groupie Joined: June-03-2013 Location: Malvern, Ohio Status: Offline Points: 57 |
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Do I need to pipe thread the ID of the water pickup for a fitting like that?
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baitkiller
Platinum Member Joined: October-11-2011 Location: SW Florida Status: Offline Points: 1693 |
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In referencing your photos I see only a through hull fitting installed. You will need a bronze elbow and a bronze tail piece. Both will have NPT threads. Please avoid brass and galvanized.
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Jesus was a bare-footer.............
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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No, as long as the NTP is 3/4" and the barb is for 1" you don't thread anything. The picture doesn't look like it's the proper size but:
The OD of 3/4" pipe is 1.050" so it fits 1" hose great. Don't worry about needing the bronze. Brass pipe and fittings are red brass and i have NEVER seen a failure. |
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baitkiller
Platinum Member Joined: October-11-2011 Location: SW Florida Status: Offline Points: 1693 |
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{quote}
Don't worry about needing the bronze. Brass pipe and fittings are red brass and i have NEVER seen a failure. Just stop Pete. I see brass used and fail all the time. You don't know where the boat will end up over time. Put it in sea water and that brass will fail in months. No valve means boat-on-bottom. It doesn't look like he is trying to save 3 bucks on this rig... dont' go cheap here. Yesterday I had a client with a 2014 model $700,000 yacht damn near sink and suffer (estimated) $30,000 in damage because some idiot put a brass plug in a bronze pump housing. Still think brass is OK? |
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Jesus was a bare-footer.............
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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I was going to add the stipulation of running in salt but ran out of time. You are correct about the need for bronze in salt. |
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upsman
Groupie Joined: June-03-2013 Location: Malvern, Ohio Status: Offline Points: 57 |
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Can I put 1 1/4" hose over the hull fitting with a clamp?
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Please measure the hose again. |
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