Tranny issue?
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=41872
Printed Date: January-15-2025 at 10:28am
Topic: Tranny issue?
Posted By: 1980snryan
Subject: Tranny issue?
Date Posted: September-03-2017 at 2:34pm
| When going idle speed, the boat seems to lurch forward, slow, lurch forward. Is this an issue with my transmission? |
Replies:
Posted By: Duane in Indy
Date Posted: September-03-2017 at 4:24pm
|
Sounds more like a carb issue. What is the idle RPM and does it stay steady or surge also. Tranny issue should show itself at above idle RPM also. Need more info. ------------- Keep it as original as YOU want it 1978 Mustang (modified) |
Posted By: 1980snryan
Date Posted: September-03-2017 at 7:44pm
| I will check on the RPM.. it doesn't do it when I go faster than idle.. it takes a while to warm up before i can put it in nutreal to idle without dying. |
Posted By: the grinch
Date Posted: September-09-2017 at 8:42am
|
Don't be too quick to blame this on a carb or vacuum problem. RPMs are the only factor that answers this question. My trans has been lurching or surging for 3 years and I have no RPM change. It is all trans related and past due for a rebuild. I've experienced hard slips at ski speeds and WOT. I've also experienced gradual slipping that is not really felt, but seen or observed by top speed falling off. I can do a fluid siphon and fresh refill and get speed back, however, the surge at idle never goes away. ------------- It takes a big hole to bury an elephant. Kirk Miller [URL=http://www.correctcraftfan.com/forum/register.asp?FID=7]KIRKS79/URL] |
Posted By: KENO
Date Posted: September-09-2017 at 12:09pm
|
At the same time, don't be too quick to blame it on the transmission. Like Duane said, look at the carburetor. You could also make sure your distributor flyweights and springs are functioning correctly as they can cause issues .with idle speed fluctuations Also like Duane said................... .more info 
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Posted By: gt40KS
Date Posted: September-09-2017 at 5:10pm
|
Sorry if I missed it (again), but what boat/ engine are we discussing here? By the screen name it appears to be a 1980 SN, but sometimes you never know. ------------- JCCI 1995 Ski Nautique GT40 |
Posted By: 8122pbrainard
Date Posted: September-19-2017 at 7:20am
|
Ryan, What did you find with the surge problem? We'd love to hear back so we'd know if we were able to help. ------------- /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: 8122pbrainard
Date Posted: September-22-2017 at 8:39pm
Have you had a chance to look into the problem yet? ------------- /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 < |
8122pbrainard wrote:Posted By: 1980snryan
Date Posted: September-23-2017 at 10:55pm
| Sorry all, I travel for work and have not had a chance to get out in the boat lately. I plan on going out tomorrow and will post an update. |
Posted By: 1980snryan
Date Posted: September-23-2017 at 10:58pm
| 1980 SN with a 351 |
Posted By: 1980snryan
Date Posted: September-24-2017 at 10:53pm
| Took the boat out today and the rpm does fluctuate just a slight bit. I'm going to mess with the idle adjustments a little and see what that does. |