Author Topic: '86 CVX 18 Re-assembly  (Read 18697 times)

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Offline ScottsCVX

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'86 CVX 18 Re-assembly
« on: April 08, 2017, 09:41:51 AM »
Hey Everyone,
I picked up Frisco's '86 CVX 18 a few weeks back and am working to get it water ready.  I will certainly have questions for the the group as the boat comes together, as there are skills required that I have yet to learn.  I'm currently working on the engine and trim pump, and have encountered a strange behavior with the trim pump.  I have a bad trim switch (up direction) on the throttle, so to verify the pump was working okay, I disconnected the Green/White down wire and the Blue/White up wire from the solenoids and applied 12v directly to the wires.  I expected the pump to move the drive up when I applied 12v to the Blue/White wire, but it moved the drive down.  The opposite results also happened when I applied 12v  to the Green/White wire...it moved up. 

Is my assumption correct about the direction of travel?  Any thoughts on what may be happening?

Thanks for any help,
Scott

Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline thedeuceman

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Re: '86 CVX 18 Re-assembly
« Reply #1 on: April 08, 2017, 09:48:31 AM »
I suspect that the hoses are connected backwards either on the Rams or the Block that feeds through the gimbal


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Joe
75 GT150 "SeaDeuced"... Its Back !!
92 16CSS "Attitude Adjustment" is for sale
75 CV-16V8, Project
74 CV-16... its Purple !

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #2 on: April 08, 2017, 09:58:27 AM »
I guess that is the only logical explanation.  Is the grey line coming from the pump the high pressure line and the black the return?  Is there potential for trouble if those are reversed?

Scott
Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline thedeuceman

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Re: '86 CVX 18 Re-assembly
« Reply #3 on: April 08, 2017, 10:02:33 AM »
I don't think you can switch them at the pump at least on the older ones like I have pressure line is a inverted flare in the return line is a compression fitting. And lines on the inside of the block would be pretty hard to switch just because of how their configured.


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Joe
75 GT150 "SeaDeuced"... Its Back !!
92 16CSS "Attitude Adjustment" is for sale
75 CV-16V8, Project
74 CV-16... its Purple !

Offline carlsoncvx18

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Re: '86 CVX 18 Re-assembly
« Reply #4 on: April 08, 2017, 11:10:25 AM »
I always though that green (grass) down and blue (Sky) is up could be wrong
1987 CVX18.     1968 Glastron alpha sail boat
1977 GT150
1986 CV23
1984 Intimiadator
1981 CV27
1969 V-180 fundeck

Online Retro Performance

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Re: '86 CVX 18 Re-assembly
« Reply #5 on: April 08, 2017, 09:06:31 PM »
I think the power and ground wires for the trim motor go directly to the battery? If they were reversed could that cause it?

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #6 on: April 08, 2017, 09:27:05 PM »
I traced all the wiring today from the throttle to the trim pump and all is correct. The hydraulic hose fittings were interchangeable at the pump, so I reversed them and now it seems to work as it should.  I'm not entirely familiar with the mercruiser trim operation, but is the up trim limited?  Once the up trim stops you need to use the trailer to bring it all the way up?


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Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline Plugcheck

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Re: '86 CVX 18 Re-assembly
« Reply #7 on: April 08, 2017, 10:28:04 PM »
Trim is controlled by the trim puck on the side of the drive and is adjustable.  I refer to this as the trim limit, might even be called that.   The other puck is the drive position sensor, and is also adjustable.  I set the trim limit  at roughly 30 degrees up from the level of the hull, but this setting is one that takes a few tries to get just right.  Pretty sure there is a factory baseline setting procedure somewhere
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline dorelse

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Re: '86 CVX 18 Re-assembly
« Reply #8 on: April 08, 2017, 11:10:13 PM »
  Once the up trim stops you need to use the trailer to bring it all the way up?


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Correct.  Once the Trim stops, you use the trailer button to bring it up to the trailerable position.
1990 Sierra 1700

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #9 on: April 10, 2017, 09:30:40 AM »
Thanks for everyone's input...I found the factory trim limit / trim sender adjustment procedures and got those dialed in.  I also uncovered a bad trim sender wire in the process, but now I've got all the gauges in working order.  Next step is to get the engine running, but most of the hoses need replacement.  The power steering hoses are like Swiss cheese, as I learned after filling the pump and watching PS fluid run into the bilge.  Any recommendations on where to purchase the power steering & cooling hose kits?
Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline Hyperacme

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Re: '86 CVX 18 Re-assembly
« Reply #10 on: April 10, 2017, 09:48:04 AM »
I get all my boat stuff from Hannays ...
http://www.hannaysmarine.com/

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #11 on: April 10, 2017, 11:18:48 AM »
Thanks for the coupon!  I've been in Hannay's many times but didn't know the group had a discount. 
Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline Plugcheck

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Re: '86 CVX 18 Re-assembly
« Reply #12 on: April 10, 2017, 11:33:18 AM »
     Well the folks in MN are blessed with water and with boat stores, here in Ohmygawd Nebraska, I purchase most of my marine needs through online companies such as iboats.com, Wholesalemarine.com, Overtons, and Boatersmarinesupply.       We do have a marine store, but prices are higher, little is stocked unless your craft is less than 10 years old, and its clear on the other side of town.   
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline 75starflight

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Re: '86 CVX 18 Re-assembly
« Reply #13 on: April 10, 2017, 12:24:25 PM »
     Well the folks in MN are blessed with water and with boat stores, here in Ohmygawd Nebraska, I purchase most of my marine needs through online companies such as iboats.com, Wholesalemarine.com, Overtons, and Boatersmarinesupply.       We do have a marine store, but prices are higher, little is stocked unless your craft is less than 10 years old, and its clear on the other side of town.

Mike, I call and order from hanny's all the time. they are happy to ship to us and i have not had a problem getting the discount. And they are much cheaper than any of the previously mentioned sites.
1975 v-179 starflite

Offline Hyperacme

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Re: '86 CVX 18 Re-assembly
« Reply #14 on: April 10, 2017, 01:03:30 PM »
Believe Hanneys is distributor for all marine parts in 5 state area.
They have a huge warehouse.
I have a dealer close to me, but they have to order parts most of the time.
So just go to Hanneys and they have the part ...
Plus ya get to say "HI" to Don  !

They also have a very good service dept. , I've had work done there, very happy with them.
« Last Edit: April 10, 2017, 01:05:44 PM by Hyperacme »

Offline dorelse

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Re: '86 CVX 18 Re-assembly
« Reply #15 on: April 10, 2017, 01:17:41 PM »
In Des Moines we have a marine parts distributor, Lorenz & Jones in Ankeny.  (Assuming that's because I35 & I80 meet here.)  Anything I order from iBoats can be immediately picked from the warehouse up provided I call ahead.

Technically, I still have to 'pay' for shipping, but I just have to select the 'free' shipping option and go and grab it.

Though the 15% discount would be nice!
1990 Sierra 1700

Offline Plugcheck

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Re: '86 CVX 18 Re-assembly
« Reply #16 on: April 10, 2017, 01:32:10 PM »
I will have to check out using Hanneys in the future, especially if the discount applies.  Shipping can be a pain, but most places waive the fees if your order is large enough.   Unfortunately, you don't have to buy much to spend a lot on boat stuff.
Michael
1979 CVZ-18 388 CI Vortec Mouse
1980 CVX-16SS 140 Mercruiser
1979 CVX-16 Johnson 175
2002 Bennington 2275CC 90 Mercury
1985 Intimidator project
1989 Lowe 200 Redneck fishin Toon
2001 Godfrey Sweetwater pontoon 115 Rude

Offline carlsoncvx18

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Re: '86 CVX 18 Re-assembly
« Reply #17 on: April 10, 2017, 07:28:59 PM »
Scott

I believe that when I had to have one made I think I used pirtek. 

Just took them in and they made them for me while I waited.
1987 CVX18.     1968 Glastron alpha sail boat
1977 GT150
1986 CV23
1984 Intimiadator
1981 CV27
1969 V-180 fundeck

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #18 on: April 11, 2017, 08:58:05 AM »
Stopped by Hannays on the way home and ordered up a complete set of hoses plus a few other items I just had to have. I also got to talk with Don and soak-up some of his knowledge on boat engines. I hope to have the parts by midweek so I can get the engine running by the weekend.


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Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner

Offline ScottsCVX

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Re: '86 CVX 18 Re-assembly
« Reply #19 on: April 13, 2017, 08:34:35 AM »
Picked up a box of parts from Hannay's Marine last night and started replacing the cooling system hoses on the 5.7L.  I noticed a fair amount of scale in a couple of hoses, so I decided to pull the thermostat housing and take a look.  Everything was very rusty and after about 30 minutes of gasket and rust removal, I finally got the thermostat out.  I'm not sure if the water temp senders are okay, but could I have this sandblasted to clean it up?
Scott
87 CV 23
79 CV 23
86 CVX 18
84 CVX 16 120hp Johnson
74 GT-160 120hp Mariner