Author Topic: Mini Glastron Meet, CVZ testing  (Read 5538 times)

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Offline Plugcheck

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Mini Glastron Meet, CVZ testing
« on: July 08, 2013, 08:07:08 AM »
     The decision was made to take the newly acquired CVZ-18 for some new owner trials.   Figured that having a second boat, my CVX16-SS with Tim driving would help to cover any failings of either craft.   Was hoping the not bring either back to the dock on a tow line would be the ultimate success, but that was not to be.   We plumbed an electric fuel pump and filter between the tank and the mechanical fuel pump on the 16SS, and it showed that the fuel pump is in fact, in need of rebuilding or replacement.   The SS ran quite well for a day at a local overcrowded lake, but when you live in Ohmygawd Nebraska, there isn’t much choice to be had.   Now on the CVZ-18.   She started and ran OK, but could not get on plane, seemed to do nothing but "Wheelies", tried every possible position of the drive with limited success.    Full throttle, then hold on, and eventually it would plane out.   Felt like a car with no traction.   Once on plane, it seemed to handle OK, but the steering acts like a tooth or two is missing.   Tim and I decided to head over to the party cove area, really just a shallow part of the lake, not really a cove at all(another Council Bluffs/Midwest thing I guess) to take of that silly whale tail thingy and see if things improved.    Went to leave, engine started right up, but would die shortly after putting it in drive.   Could restart it, but as soon as you went to give it fuel in drive, it would die.   Ended up having to tow the CVZ in with the CVX.   I guess sometimes you’re the tow-er, and sometimes your the tow-ee?  Was kind of relaxing to sit in the front of the CVZ and enjoy the tow.   Had a few boats try to pass between us, until they realized it was a towing situation.   Yep it was that crowded.   Finally got the boats back to the trailers, pulled the plugs, not a drop from the CVX, the CVZ however, drained water for 20 minutes.   Maybe part of the issue with inability to plane out?   Looking at leaky bellows, bad impeller, broken driver’s seat, and steering issues before next trip out.   
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 Rosscoe

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Re: Mini Glastron Meet, CVZ testing
« Reply #1 on: July 08, 2013, 08:17:25 AM »
Having too much water in the bilge could definitely make it difficult to get on plane with all that extra weight.
Do you have a bilge pump? Is it working? That would be one easy thing to try. Pump it out and try to get on plane. Try a different prop too. Maybe the hub is spun on your prop?
Ross
61 Surflite 1964 90HP Johnson project
67 V163 Bayflite Super Sport  1989 100HP Merc
67 V164 Bayflite 120HP
67 V174 Crestflite Rat Rod
71 V175 Crestflite 350ci -Jet
73 GT 160
84 CVX 17  83 115 Merc
88 CVX-23 350 Mag

Offline 75starflight

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Re: Mini Glastron Meet, CVZ testing
« Reply #2 on: July 08, 2013, 08:29:33 AM »
Glad to see you get the CVZ out!

Get her ready and bring her up to Calamus on the 20th. Amber and I, and Travis will be up there for the weekend Hopefully.
1975 v-179 starflite

Offline WetRaider

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Re: Mini Glastron Meet, CVZ testing
« Reply #3 on: July 08, 2013, 08:56:25 AM »
I was thinking spun prop, too ...

With no load, sitting in the driveway, my prop would engage and spin and stop just fine.  Once in the water, it seemed to take forever to get up to speed and on plane ... but it would do it, if you were patient and left the throttle alone - start messing with throttle and you started all over again.

Glad you put it on the water to check it all out!
If you didn't get wet, you didn't have fun ~ WetRaider

Dan O'Connor
1979 GT 150 / 1976 Mercury 1150

Offline dorelse

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Re: Mini Glastron Meet, CVZ testing
« Reply #4 on: July 08, 2013, 09:15:44 AM »
Yeah, your CVZ is definitely sitting low in the stern (and pitched up in the bow).

I have had planing issues with mine, but only when I was loaded with 4 adults all in the back.  Moved 2 up to the bow and it planed off just fine...the CVZ is more sensitive to weight & balance than the CVX.  (No fuel tank in the bow...)

So with all that water in the stern, yeah, you could have issues.

1990 Sierra 1700

Offline Plugcheck

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Re: Mini Glastron Meet, CVZ testing
« Reply #5 on: July 08, 2013, 09:23:32 AM »
      Never thought to check the hub on the prop, but will soon.    Also, I suspect the bellows is leaking/cracked, along with a bad impeller.     Looks like an evening with the outdrive soon.  Thanks for the advice.
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 84carlson

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Re: Mini Glastron Meet, CVZ testing
« Reply #6 on: July 08, 2013, 05:39:14 PM »
Carter or lake Manawa?

Offline V153

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Re: Mini Glastron Meet, CVZ testing
« Reply #7 on: July 08, 2013, 06:52:14 PM »
      Never thought to check the hub on the prop, but will soon.    Also, I suspect the bellows is leaking/cracked, along with a bad impeller.     Looks like an evening with the outdrive soon.  Thanks for the advice.
I always take a punch'n put a lil dimple in both the hub & prop right above/below each other. Easy way to check for a spun hub. Ya excess water don't help & it sounds like you were carrying some?

Good luck!
'81 C500_given away, bought back_75.1 mph
'81 Baja 15SS_140 Frankenrude_66.7 mph
'70 something SpeedCraft_(Allison 16R Clone)_69.0 mph
'79 CVZ19_given away
'71 V153_54.8 mph_wrecked


WALK TALL AND CARRY A BIG BILGE PUMP

Offline Rosscoe

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Re: Mini Glastron Meet, CVZ testing
« Reply #8 on: July 08, 2013, 09:17:39 PM »
      Never thought to check the hub on the prop, but will soon.    Also, I suspect the bellows is leaking/cracked, along with a bad impeller.     Looks like an evening with the outdrive soon.  Thanks for the advice.
I always take a punch'n put a lil dimple in both the hub & prop right above/below each other. Easy way to check for a spun hub. Ya excess water don't help & it sounds like you were carrying some?

Good luck!
Great idea on punching the hub Doug.
Ross
61 Surflite 1964 90HP Johnson project
67 V163 Bayflite Super Sport  1989 100HP Merc
67 V164 Bayflite 120HP
67 V174 Crestflite Rat Rod
71 V175 Crestflite 350ci -Jet
73 GT 160
84 CVX 17  83 115 Merc
88 CVX-23 350 Mag

Offline WetRaider

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Re: Mini Glastron Meet, CVZ testing
« Reply #9 on: July 08, 2013, 10:19:51 PM »
Doug.  That's crazy talk.  I prefer to have a marina's shop tell me the gear case is bad and send me on a wild goose chase for a new lower unit, pay the labor to replace it, then get it in the water to discover the problem hasn't been fixed.  Stop at the first marine dealer who refused to work on it because of age and be told in less than 2 minutes the prop was spun ...
Ain't no fun looking at dimples on the back - it's just too easy.
If you didn't get wet, you didn't have fun ~ WetRaider

Dan O'Connor
1979 GT 150 / 1976 Mercury 1150

Offline Plugcheck

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Re: Mini Glastron Meet, CVZ testing
« Reply #10 on: July 11, 2013, 01:43:05 PM »
     Had some time to look over the CVZ last night.   Appears that the exhaust bellows is not connected to the lower unit at all, driveshaft bellows appears weather checked and also in need of replacement.   Steering unit at dash is well worn, and skips a tooth now and then.  Drivers seat screws pulled out, I first thought rotted floor, but the screws are rather small, and I'm hoping some larger lags will cure that issue.  Water pump is tired or broken, not pumping water very well.   Engine runs fine again on land with muffs on, so not certain why it would not run on the water.  Maybe a bilge full of water?   Bilge is filthy with oils, leaves, sticks and what not. Pressed the hub out of my older Quicksilver prop, not sure if it slipped or not, but the rubber looks checked, probably just replace it now its out.   Took a 20 ton press to get it out.  Several marks on the hub indicate someone before me suspected this issue.   A host of other minor issues.  Beginning to consider beginning the restoration now and have it ready for Rathbun 2014.     I think I have found the perfect name for this new CVZ  "Nauty Addiction"    On a side note, added an electric fuel pump to CVX16-SS and it runs flawless, now looking for pump rebuild kit for stock mechanical.  With the CVZ "sick" looks like I have to keep the SS awhile longer.
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: Mini Glastron Meet, CVZ testing
« Reply #11 on: July 11, 2013, 01:49:27 PM »
My CVZ had the 'Performance Exhaust' tube on it...so I think that's probably what you have as well.  It doesn't connect to the lower unit, and IMO gives the 898 a nice little rumble.

« Last Edit: July 11, 2013, 01:51:36 PM by dorelse »
1990 Sierra 1700

Offline 75starflight

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Re: Mini Glastron Meet, CVZ testing
« Reply #12 on: July 11, 2013, 03:47:53 PM »
Does your CVZ have the Morse helm on it?? if it does, I am planing on removing mine and using what ever is in the donor boat when I find one. So you could probably have it. Hope to have it removed this evening. It did feel smooth when I tried it with the steering wheel installed.
1975 v-179 starflite

Offline Plugcheck

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Re: Mini Glastron Meet, CVZ testing
« Reply #13 on: July 11, 2013, 03:56:10 PM »
     Sorta looks like that, but appears to be flexible and has indications that a hose clamp was once on it.   I included a pic of the area, sorry, took it with my phone.   Still trying to figure out the leak, but for certain, all the rubber components are rather aged.   As for the steering issue, I beleive it is a morse, but have not looked close enough at it to know for certain.   
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 CVX Fever

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Re: Mini Glastron Meet, CVZ testing
« Reply #14 on: July 11, 2013, 05:55:56 PM »
Check your transom. If it it rotted bad enough you might be taking on water thru the transom assembly. if your boat drained water for 20 minutes that's the reason it couldn't plane. Prop could be spun but it would do the same thing with a good prop. That MR drive doesn't trim negatively like the Alpha series so holeshot will always suffer a bit.
1979 CVX18 "Back in Black"....someday!
1985 CVX18 " Only thing better than 2 CVX18's is 2 girlfriends!