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Topics - cmainprize

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Main Message Board / Drive shaft touching stern tube
« on: May 25, 2019, 05:58:48 AM »
When applying bottom paint this week I noticed the shaft is just touching the bottom aft edge of the stern tube where it exits the boat.  The shaft has never been centered in the shaft where it exits the tube, but I have never noticed it to touch the bottom of the tube.

The cutlass bearing has not play, and does appear to have any uneven wear.  The boat is still in the cradle, I do understand this can "bend" the boat a bit, but the shaft seems to low.  I also noticed some additional vibration sounds late last year.  I am thinking the mounts have compressed a bit causing the engine to sit a bit lower changing the angle the share exits the tube causing it to just touch the tube. 

The boat is set up with a dripless log and federal flex coupler. 

I am thinking one or two turns on each corner would be enough to lift the engine enough to increase the shaft angle and prevent it from touching the tube and should keep the alignment close enough that I can fine tune it once the boat sits in the water for a week or so and "straightens out'.

Thoughts or suggestions? 

2
Main Message Board / Synthetic Teak Decking
« on: July 10, 2017, 06:28:30 PM »
Nothing beats the look of beautifully maintained natural teak decking.  We have also really liked the looks and feel of the synthetic teak finding it's way onto many new boats. 

We decided we liked it enough to have our C34 done.  The cockpit is pieces are done and being installed next week.  See pic.

They will  template decks for install later in the season so we don't lose any time from our already short season.  I will send pics after install next week.

Cheers,

3
Main Message Board / MK11 complete mast available
« on: April 21, 2016, 04:27:15 AM »
C34 association members, if you remember my old post my mast was damaged when the boat next to me fell and hit the spreader.  The impact resulted in a slight depression where the spreader mounts to the mast.  The mast was condemned and because the exact extrusion is not longer available the entire rig was replaced from masthead to step including boom, rigging, and all hardware.  Aside from being a total PIA the entire rig is brand new.  I think the total bill is just over 50K if you were wondering.

Now I have an mast assembly including boom and all hardware that was removed.  The extrusion and the spreader mount is of no use.  My wife and I are still debating if we want a 45 foot flag pole on our front yard! 

If you need any parts let me know.   

4
Main Message Board / new mast
« on: November 05, 2015, 04:53:19 PM »
This is an additional thread from my previous one titled rigging got hit.  After inspection yesterday it appears the mast will be condemned.  I put out several call today to start the process of the mast replacement so I know my options when I discuss with marina and insurance company.  Seems that no one is sure who built the mast.  Charleston spar did confirm it was not theirs when I sent pic and they believed it was a forspar and that profile is no longer available.  UGGG!!  I spoke with the factory today and they are getting back to me.

Does anyone have any suggestions to determine the spar manufacturer and where to get one.  The factory did say the believed a new seldon package ( read very expensive) from a 355 would fit if I changed the mast base and the standing rigging.  Sails would be a little small for it though.

5
Main Message Board / rigging got hit
« on: October 22, 2015, 05:18:33 AM »
HI
The boat next to me fell over yesterday shortly after the marina placed it on the stands.  I was down below working when it happened.  The mast of the fallen boat hit my outer shroud as it fell.  The impact ripped the spreader off the other mast and his outer shroud broke.  His mast snapped at the spreader.   Fortunately everything that fell hit the other boat and deck and hull were not damaged.  The broken mast remained pressed hard against my forward lower and outer.  The tension on the shrouds were very high.  I had to leave it and the boat was being lifted off mine today.  Aside from a rig inspection can anyone suggest what i should be looking for to check for damage.

6
Main Message Board / Mk 11 Keel Bolts
« on: June 03, 2015, 04:14:31 AM »
So after much discussion I went to check the bolts yesterday and realized the aft bolt is impossible to tighten.  The bolt is so far aft in the bilge I am not able to get the socket over over the bolt.  I tried every combo of flex socket and extension I had with no luck.  Has anyone with a MK11 had better luck?

7
Main Message Board / Tightening keel bolts
« on: May 30, 2015, 05:45:10 AM »
I just got my new socket to fit my keel nuts.  I have read several posts saying keel bolt tourqe should be checked while the boat is in the cradle.  I don't understand this concept.  It seems to me that unless you are able to balance the boat perfectly on the keel checking the tourqe in the cradle may not be accurate.   We have a fin keeled boat and in my experience we are not able to balance boat in cradle.  The angle of the fin keel puts more weight on the bow because the boat wants to tip forward.  My understanding is this would put unequal load on the keel boats.  The front of the keel is under some compressions and the rear is under some tension. 

It seems to me that checking/adjusting the tourqe in the water is the most accurate way to ensure the tension is equal and accurate.  With the keel in its natural position the torque would be equal because the load is equal.

Just my thoughts.  Can someone offer an explanation that concurs or dissents. 


8
Main Message Board / companion way slider cover pictures added
« on: May 10, 2015, 07:14:15 AM »
Many Mk11 owners have written about how the companion way cover drains right onto your seats when it rains.  I decided to fix it this year and caulk around the seam.  I also have been trying to drill out and fill every deck fitting with epoxy to prevent water damage in the event a fastener leaks.  When I removed the cover to drill and fill the holes I found the screws had been leaking and caused significant damage to the core material in the cover.  Thankfully it's and easy fix and you won't see the repair because it on the bottom of the cover.  I have done about half the fittings on the boat over the last couple of years, but after seeing this damage and realizing how lucky I was it was an easy fix I will spend the next coupe of weeks doing every remaining deck fitting.  My rough math says I have just over 75 holes left to fill.  I have done about half already.   Its amazing how many fastens are in your deck.  I did the enclosure snaps yesterday, that was over 30 holes.

9
Main Message Board / Keel hull joint fairing
« on: March 13, 2015, 05:16:45 AM »
The keel hull joint on Mystic shows no signs of movement and does not leak.  My only issue is the fairing over the joint has been touched up several times and and has a couple of spots that need to be redone again.  I am thinking I will blast the sand/walnut blast the area 10-12 inches above the joint and do a complete repair so it looks uniform  prior to paint this year.

What I was considering is doing a 4, then 6, then 8 inch wide layers of glass over the joint then fairing everything smooth.  I would then reapply barrier coat in blasted area and paint.  I was thinking I would use g flex expox to account for the "flexing" of the joint.  I would also do the area behind he strut mount at the same time in a similar fashion.  Most the mark II's have some cracking or separation behind the area where the strut is mounted and require frequent refairing as well.  

The only downfall I can see is if I ever had to separate the joint in the future.  
It's a bit off work but I would think this would keep things looking good for many more years.

Can anyone share their thiughts or see a negative impact.

Thanks in advance!

10
Main Message Board / MKII companion way cover
« on: July 10, 2014, 05:53:50 AM »
The design of the companion way cover has driven me nuts for years.  Water drains off the cover into a track and then aft into the cockpit right onto your cushions.  After a couple of rainy days I got fed up and taped over the grove that the cover sits in.  Can anyone tell me whether I can just fill this grove with silicone and deal with the mess if I need to remove the cover.

11
Main Message Board / Belt removal
« on: April 18, 2014, 03:51:12 PM »
I was attempting to replace my accessory belt this week and realized I cannot get enough slack in the belt to get it off.  The alternator hits the coolant line running down the port side of the engine.  I have an extra piece of hose around the coolant line to prevent chafe because the hose rubs a bit on the engine and the alternator bracket so this might make things worse for me. 

I removed the water pump pulley to get it off, I guess I could have pulled the alternator as well, but the pulley seemed easier.

Anyone else run into this issue, I will take a picture next time I am up!


12
Main Message Board / Stoage under nav station
« on: July 04, 2013, 06:23:28 AM »
In our never ending quest to improve storage and stop stuff from ending up on the cabin floor I was inspired by a previous post where a member built drawers under his nav station.  Behind the door is a shelf in the middle.  The new built in cabinet makes the cushions a tight fit because they do extend under the desk slightly but they still fit.  The door size is 15 x 20 purchased from the discount pile at WM and the teak trim is from my hatch boards that I cut up. Made new hatch boards from PVC lumber ( great stuff to work with).  I still need to add a piece of trim to the bottom at the front so you can't see the little section of the old floor that was under the nav station.  Not a big deal just, just being picky.

13
I have a Raymarine C80 with navionics silver great lakes charts, and a 24 inch dome 4KW radar removed from a customers boat for sale.  Unit works perfect and shows very little wear.  Included is 5 meter radar cable, gps antenna and cable, power cable, cover, and most of the manuals.  Any sailboat application would require a longer radar cable (around $175) to install.

$800.00 or best offer.


14
40 inch leather wrapped wheel, great shape, fits one inch straight shaft.  FYI, shipping outside ontario will be cost prohibitive.

$150.00

mainprize@rogers.com

15
Main Message Board / MK 11 exhaust hose
« on: April 12, 2011, 04:44:28 AM »
When inspecting the section of exhaust hose from the riser to the muffler I discover the wire reinforcement inside the hose had broken and the hose had delaminated and was very close to failure.  Visually the hose appeared normal, give it a squeeze to test.

I have never liked the Hardwall hose used between the riser and the muffler.  It is very hard to work with, and the distance from the riser to the muffler on the MK11's is very close and requires a very hard bend.  This type of hose also transmits alot of the engine vibration to the muffler.  

My solution was to use Silicone hose and a fiberglass elbow to reduce vibration and make a fair hose run.  No one had the fiberglass elbow in stock and my local stainless guy was super busy so I made the elbow with standard fiberglass and epoxy.  I will be able to test it in a few weeks when we go back in the water.  Picture attached.

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