Noisy V-drive
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=25872
Printed Date: January-24-2025 at 9:50am
Topic: Noisy V-drive
Posted By: youknowthiscraig
Subject: Noisy V-drive
Date Posted: May-06-2012 at 10:21pm
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I just bought a 1992 Nautique Excel V-drive with low hours. The boat runs great but the v-drive makes a clanking at lower speeds. I seem to remember my other nautique doing the same. I hear those v-drives are bulletproof...is that true. I got a good price on the boat and I am not scared to put some money into it...even if that involves rebuilding the v-drive. Im just trying to figure out whether I need to repair anything. Has anyone ever taken the top off that v-drive to look for damage? Also, what other repairs can I anticipate with that boat. I plan on switching the ignition to a normal distributor. Is the $500 Skidim kit really the only option. Seems like a lot for a distributor...or is that just what it costs. Anyway, any advice would be appreciated. The boat looks really serviceable, and its the boat I want for the next 20 years, so Im not afraid of putting some money into it. Thanks for your time. |
Replies:
Posted By: eric lavine
Date Posted: May-07-2012 at 8:34am
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you may have a dampner noise, along with a slight miss in the engine that will aggravate the noise, i wouldnt say the Walter's v-drive is bulletproof and again it surely isnt pocket proof ------------- "the things you own will start to own you" |
Posted By: 8122pbrainard
Date Posted: May-07-2012 at 9:37am
 It sure isn't designed as such. Eric, I wonder have their prices gone up even more since they lost all the CC business?The Walters uses straight cut gearing and the angle change is done with "U" joints.  Due to backlash normal with this type of gear set, they can chatter.Do check as Eric has suggested. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
eric lavine wrote:Posted By: youknowthiscraig
Date Posted: May-07-2012 at 7:57pm
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Thanks for the response. Your responses matched what I later found on a walter v-drive installation manual. It says: "A clatter or rattle in the V-Drive at low RPM is due to drive-line related vibrations, such as the overriding of the propeller during the compression stroke of the engine. This noise may be reduced by tuning up the engine and increasing the idle speed for smoother operation." Since the boat is new to me, I was hesitant to give it more gas until I figured out the clatter. I suspect that if I check the dampner, adjust the idle, and check the alignment I should be good to go. Is there much risk in taking off the top or bottom cover plate of that v-drive to have a look? Thanks again for the help. |
Posted By: kapla
Date Posted: May-07-2012 at 8:18pm
you can have the dizzy and the coil for around 300 on summit, but you would need to fabricate a new electrical harness, and a mounting bracket for the selenoids and breakers that are mounted in the protec coil pack. So I guess the $500 for the kit ain´t that much, plus they came with the spark cables...Only poor thing in the kit is the intallation guide....  ------------- <a href="">1992 ski nautique |
Posted By: kapla
Date Posted: May-07-2012 at 8:21pm
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BTW welcome to the forum! you know we like pictures so, c´mon and post some of that boat!  ------------- <a href="">1992 ski nautique |
Posted By: eric lavine
Date Posted: May-08-2012 at 8:32am
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all you will see is a copper tube if you pull the top cover, its a cooling tube that snakes around in there and water flows around it and no access to what you want to see. everything in that box comes out the bottom ------------- "the things you own will start to own you" |
Posted By: 8122pbrainard
Date Posted: May-08-2012 at 9:16am
At least Walters put the following in the manual!
------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: TX Foilhead
Date Posted: May-08-2012 at 11:08am
| My ProTec made it 900 hrs, wait till it gives you a reason to change it mine was great for 400hrs. The kit is worth the little extra because of the wiring harnes when it does need to be changed out. |
Posted By: Waterdog
Date Posted: May-08-2012 at 12:21pm
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Look into a Davis Unified Ignition (DUI) only 2 wires to hook up and the spark plug gap is opened up to .050 Is there a reason not to go DUI ??? ------------- - waterdog - http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique |
Posted By: TX Foilhead
Date Posted: May-08-2012 at 1:01pm
| That would be a reason not to buy the the ProTec kit. I think those take a little more work to set up properly and are a bigger benefit if there are other engine mods like the cam, intake and heads mod. I briefly thought about it and determined it wasn't enough of a benefit alone justify the extra cost since I wasn't sure when I would get the rest of the stuff done. |
Posted By: Waterdog
Date Posted: May-08-2012 at 5:26pm
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The ONE ProTec kit I helped install was junk. Wiring - wrong. Instructions - wrong The broched hex hole in the dissy was not chamfered (made the dissy IMPOSSIBLE to install) Spark plug gap is smaller than the Pro Tec (never seen an ignition "up-grade" with less plug gap) The boat is over 100 mi away so it took the better part of 3 weekends to install DUI about the same price 2 TWO wires 1 keyed hot - 1 tach Much, much easier to install and a true up-grade Even I can install it in under an hour. ------------- - waterdog - http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique |
Posted By: youknowthiscraig
Date Posted: May-09-2012 at 3:54am
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Thanks again for all the suggestions. I've spoken with a few mechanics who say the v-drive rattle is normal. I just wanted to be conservative rather than multiplying problems. Im going to replace the strut bushing, adjust the packing, replace the dampner, change fluids, have the shaft checked for true, and go from there. As for the ignition, yeah, perhaps I'll just keep the protec until it becomes a problem or I'm sure I want to move forward with this boat. I always like to get a sense of serviceability before dumping money into something. If I can squeeze a couple summers out of the protec, I'll be happy. Now my only possible concern is the dreaded stringers...but that is for another day...and I aint that scared. |
Posted By: eric lavine
Date Posted: May-09-2012 at 8:19am
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its really not normal, unless the damper is worn or a miss in the engine...obviously and the correct idle ------------- "the things you own will start to own you" |