logo
Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
2 Pages12>
Capac .6
Options View
Previous Topic Next Topic
tundrarules
#1 Posted : Sunday, March 21, 2010 9:47:23 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Think

Capac reading .6 with shore power disconnected.
Boat was pulled and Zinced 3 years ago.
Freshwater always.
I have not disconnected batteries and checked reading to rule out dc leak yet.

Checked rudder isolation. Did get a reading but it was very low. Should I be getting infinity?
Have not checked shafts yet.

Ideas? Brick wall

Anodes gone?
Would a cleaning of anodes bring it up to correct range?
Should I use a guppy anode until I can pull the boat?
Should I have the boat pulled immediately and rezinced?

Step by step ideas needed.

Thanks to all Applause

BigM
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
Sponsor
Please Register : To weed out spammers, new members may not post until approved. An email is usually sent after approval. This forum is for Marinette Owners and other aluminum boat boaters who wish to share boating information. Aluminum Roamer owners are also welcome. (Do not post content you do not have the right to post and mass (robots) posters are unwelcome. We also have a marine electronics page and lots of Chrysler Engine info. State by what permission you copy content and give credit properly.) The site is now fixed with some more Chrysler information. We have space for pictures on the new location. Use shinkpic to autochange size http://www.onthegosoft.com/sp_download.htm

Great Sites - http://www.marinette.com Marinette Company

http://web.me.com/dougmrose/Doug_Roses_Website/Welcome.html

http://fastjeff.tripod.com/ Repair Tricks and Techniques for Marinettes

http://www.greatlakesmarinetteclub.com/

PLEASE post in the appropriate folder. Please, do not post your actual email address in publicly readable websites. The first rule is be a class act.
Back to top  
mark klusman
#2 Posted : Sunday, March 21, 2010 10:56:47 AM(UTC)
mark klusman

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 10/19/2009(UTC)
Posts: 320
Points: -74

Thanks: 12 times
Was thanked: 6 time(s) in 6 post(s)
You might try and take her out from the dock ,and see if the capac reading goes up. As for mine , i read about .06 or .07 an a good day at the slip. Get out about a 1/8 mile and it goes up to a little over .08. Large marina , their not worried. I did make two guppys for the winter and attached to shafts and rudders. Don't know if it really helped but i didn't see where it could hurt . Tried all the things you mentioned but seemes to be the marina or other boats . I'm sure one of the guys can give you better info on what will help you get a better reading.
Mark
No matter where you go,there you are.
Knot Normal
28FT. Express
Twin 318's
Ten Mile Tn.




Back to top
GB49
#3 Posted : Sunday, March 21, 2010 11:39:58 AM(UTC)
GB49

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 12/4/2007(UTC)
Posts: 685
Points: 1,824

Thanks: 5 times
Was thanked: 14 time(s) in 12 post(s)
Agreed on taking here away from the dock and checking.

Also check to make sure the Capac meter is calibrated. I use a digital meter and make several small corrections until both units are reading as close as possible.

I'm not so sure cleaning the anodes will make a difference but if they have not been inspected for 3 yrs and have been in the water for that long, a haul out may be in order.
You may also have bottom paint coming off, exposing the Al which may cause some problems.

-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
Back to top
jralbert
#4 Posted : Sunday, March 21, 2010 12:01:11 PM(UTC)
Rank: Administration

Groups: Admin, Administration
Joined: 12/4/2007(UTC)
Posts: 1,117
Points: 665

Was thanked: 12 time(s) in 12 post(s)
ANother view:
-cleaning often helps.
-if shafts and rudders are isolated properly, as they must be, attaching guppy to them should not do anything. Clamp one end to a piece of metal topside (like a rail stanchion) and lower guppy o'board.
-low Capac reading could be stray 12 v current from another boat, not a shore power issue.
-check shaft isolation. How-to has been posted a lot on the forum.
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
Back to top
tundrarules
#5 Posted : Wednesday, March 24, 2010 5:06:35 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Thanks for the advice.

I am getting a very small ohms reading on my rudders. Not sure if I should read infinity or if I will get a little bleeding from grease etc. Will rudder and shafts which are not isolated cause a low Capac reading, or is it strictly dc current and anode depletion? Think
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
 |  Edit by user
GB49
#6 Posted : Wednesday, March 24, 2010 5:37:03 AM(UTC)
GB49

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 12/4/2007(UTC)
Posts: 685
Points: 1,824

Thanks: 5 times
Was thanked: 14 time(s) in 12 post(s)
Have someone push and hold the Capac button while you ground the shaft(s) and see if the Capac needle deflects. If it does deflect, the shaft(s) are isolated. You can do the same w/ the rudder.

No needle deflection indicates the shaft/rudder is already grounded to the hull. This is not good and should be fixed.

-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
Back to top
tundrarules
#7 Posted : Wednesday, March 24, 2010 8:39:54 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Thanks Karl
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
GB49
#8 Posted : Wednesday, March 24, 2010 10:38:06 AM(UTC)
GB49

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 12/4/2007(UTC)
Posts: 685
Points: 1,824

Thanks: 5 times
Was thanked: 14 time(s) in 12 post(s)
I should have specified to ground each shaft to the hull, one at a time. I've used a pair of pliers from shaft to a clean, paint free stringer.
Its a good way to tell if the isolators are good on the shaft flange couplings.

I'm not so sure on the rudders. I really don't know how they isolated them from the hull.
I suspect my rudders are NOT isolated for one reason or another. That's first on the spring project list.

-K

1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
Back to top
fastjeff
#9 Posted : Wednesday, March 24, 2010 11:10:59 AM(UTC)
fastjeff

Rank: Administration

Medals: aluminum star: For Marinette Owners Everywhere above the call of duty

Groups: Admin2, Admin2, Admin, Administration, Member
Joined: 12/5/2007(UTC)
Posts: 3,133
Points: 5,732

Was thanked: 34 time(s) in 30 post(s)
Look at the rudder bar and the cable connections. There has to be electrical isolation there (that some squid may have left off. The previous owner, of course!) If you have a ground, remove a part at a time 'til you discover where it is.

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
Back to top
Dave Morris
#10 Posted : Wednesday, March 24, 2010 11:26:24 AM(UTC)
Dave Morris

Rank: Dedicated Tin Star

Groups: Member
Joined: 12/7/2008(UTC)
Posts: 74
Points: 231
Three year old zinc's , you got your money's worth !
1986 32 Flybridge - Express "Steel Head " (formerly fron Lake Erie, East Lake OH)
5.8 Chryslers 275hp each.
Charleston Boat Club Kanawha River Charleston WV
Back to top
tundrarules
#11 Posted : Wednesday, March 24, 2010 1:39:54 PM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Thanks for your input on an old subject. I did a search, but you guys cleared a few things up for me. As soon as I check the isolation issue, I will have the boat pulled and rezinced.

Correct me if I'm wrong, for fresh water, I will be using Mil-Spec A-24779(SH) aluminum alloy (also called KA90 or SEALLOY 150 by Marinette Yachts) from boatzinc.com and magnesium on each trim tab Brick wall

If anyone else has more input please give it.

Thanks to all!! Applause

BigM
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
 |  Edit by user
tundrarules
#13 Posted : Tuesday, March 30, 2010 11:14:13 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
1985, 29.5 foot sedan, twin 318s, freshwater

About to pull the boat for zincs.

Will be ordering from boatzincs.com.
30" on each side of keel
magnesium on each trim tab (which of these would you use? ?http://www.boatzincs.com/rudder-magnesium.html
6" on each rudder
magnesium on each shaft (what shaft diameter do I have?)

Any tips?

I think I have 1 1/4 inch shafts, is that correct
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
 |  Edit by user
fastjeff
#14 Posted : Tuesday, March 30, 2010 10:51:46 PM(UTC)
fastjeff

Rank: Administration

Medals: aluminum star: For Marinette Owners Everywhere above the call of duty

Groups: Admin2, Admin2, Admin, Administration, Member
Joined: 12/5/2007(UTC)
Posts: 3,133
Points: 5,732

Was thanked: 34 time(s) in 30 post(s)
Easy on the magnesium! You only need one block of it on a trim tab (though a second that's easily removable in-water would be okay). Use regular zinc anodes everywhere else.

Jeff

PS: Too much voltage generated by your anodes will leach magnesium from the alloy, especially at the welds. Not good!
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
Back to top
Docsnow
#15 Posted : Wednesday, March 31, 2010 1:05:37 AM(UTC)
Docsnow

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Admin, Administration
Joined: 12/4/2007(UTC)
Posts: 1,871
Points: 4,247

Thanks: 2 times
Was thanked: 28 time(s) in 28 post(s)
You should first check if your Capac meter is working right ? There are write up in the archives
on how to check it out if it’s ok ( if U can anchor in the shallows take a very soft bristle brush on
handle & clean the Capac senor (very gently)see if that helps the readings? next step find where
U are getting the voltage leak from be it AC/ DC this is done easiest while the vessel is in the
water. Plus it’s a pain in the A$$$ but till this is done U will have problem if U over zinc or
magnesium U are creating a problem as bad if not worst as Jeff described. GOOD LUCK !!!
Over zincing is not the long term solution

Norm,

Big BigMs Live On Applause
http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

http://www.PictureTrail..../index.php?clubID=20726 this one for the Pix club


 You'll have bad times, but they'll just wake you up to the good times you weren't paying attention to

Some people try to turn back their odometers.Not me, I want people to know "why" I look this way.I've traveled a long way and some of the roads weren't paved.
Back to top
tundrarules
#16 Posted : Wednesday, March 31, 2010 2:47:09 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Quote:
Easy on the magnesium! You only need one block of it on a trim tab (though a second that's easily removable in-water would be okay). Use regular zinc anodes everywhere else.

Jeff


Jeff,
I am in fresh water, so I will be using Alum alloy on hull, etc and Magnesium no tabs.
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
 |  Edit by user
tundrarules
#17 Posted : Wednesday, March 31, 2010 2:55:06 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Quote:
You should first check if your Capac meter is working right ? There are write up in the archives
on how to check it out if it’s ok ( if U can anchor in the shallows take a very soft bristle brush on
handle & clean the Capac senor (very gently)see if that helps the readings? next step find where
U are getting the voltage leak from be it AC/ DC this is done easiest while the vessel is in the
water. Plus it’s a pain in the A$$$ but till this is done U will have problem if U over zinc or
magnesium U are creating a problem as bad if not worst as Jeff described. GOOD LUCK !!!
Over zincing is not the long term solution

Norm,


Norm,
It will be June before I'm getting in the water around here...shrivel factor! I'm thinking after three years in fresh water the zincs are depleted. I'm planning on pulling the boat within the month for a bottom wash and a rezinc. I will be checking isolation and voltage leaks before pulling. You guys are the best. Happy boating!!
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
 |  Edit by user
jralbert
#18 Posted : Wednesday, March 31, 2010 3:17:53 AM(UTC)
Rank: Administration

Groups: Admin, Administration
Joined: 12/4/2007(UTC)
Posts: 1,117
Points: 665

Was thanked: 12 time(s) in 12 post(s)
One more thing: if your shafts are properly isolated (and they need to be), you really shouldn't need zincs on them. There was absolutely no wear on my shaft zincs are several seasons. Which means isolation was good, thankfully. That said, it's probably not harmful to keep a zinc on there. At least, you will feel better. And my guess is that you probably have 1 1/4" shafts. If you are not sure, buy the other size (1") and return the ones that don't fit. And re-read Norm's caution on scrubbing the Capac sensors - gently. I'd probably use only a sponge.
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
Back to top
 |  Edit by user
tundrarules
#19 Posted : Wednesday, March 31, 2010 10:19:28 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Should I cover the Capac sensor while bottom cleaning or can I just hit it with a light pressure wash?
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
jralbert
#20 Posted : Wednesday, March 31, 2010 1:29:23 PM(UTC)
Rank: Administration

Groups: Admin, Administration
Joined: 12/4/2007(UTC)
Posts: 1,117
Points: 665

Was thanked: 12 time(s) in 12 post(s)
I would definbitely NOT pressure wash it...use a sponge and a soft spray from a hose.
Joel Albert, Potomac MD
"Charlie B" - 1988 32' FBS
Twin 318's/FWC/16x15 nibral props
docked Deale, MD
Back to top
tundrarules
#21 Posted : Friday, April 02, 2010 8:34:25 AM(UTC)
tundrarules

Rank: Marinette Royal Aluminum Poster (300+) posts

Groups: Member
Joined: 11/11/2009(UTC)
Posts: 411
Points: 413

Thanks: 22 times
Was thanked: 8 time(s) in 7 post(s)
Seems that I've read on the forum that someone suggested using a spacer/nut between the hull and the anodes which would leave a small gap so more anode surface would be exposed. Has anyone else done this? What are your thoughts?
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL

RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
Back to top
Users browsing this topic
guest
2 Pages12>
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Powered by YAF 1.9.5.5 | YAF © 2003-2011, Yet Another Forum.NET
This page was generated in 0.332 seconds.