Need help
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Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=33390
Printed Date: April-28-2024 at 4:09am
Topic: Need help
Posted By: Tko87
Subject: Need help
Date Posted: April-20-2014 at 2:44pm
1979 fish Natique 454 marine with Rodchester
.all was good until I rebuilt the engine went with a new edelbrock carb
Problem is as soon as the 4 barrel kicks in it back fires through carb and it Boggs Down and won't go any faster . Run perfect when in 2 barrel . Only thing I have noticed is that I didn't reinstall the wedge plate .
Any suggestions? Thanks
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Replies:
Posted By: oldcuda
Date Posted: April-20-2014 at 2:58pm
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You probably need to put Rochester back on.I run two of them without wedge and no problem.Just built big block and rebuilt Quadrajet because I think they run better than others especially Edelbrock.Did you change intake to square bore?
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Posted By: Tko87
Date Posted: April-20-2014 at 3:55pm
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Same intake small holes frt and big in rear. I put adapter plate to match intake on bottom and carb on top
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Posted By: oldcuda
Date Posted: April-20-2014 at 6:02pm
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The spreadbore adaptors are hard to get a good seal to manifold not recommended.If it was me I would put Quadrajet back on see if problem goes away.Timing and advance set and working properly?Ignition upgrades?
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Posted By: Tko87
Date Posted: April-20-2014 at 6:06pm
timing good advance working
The intake had grooves in connecting the back to holes to eacother ( secondaries)
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Posted By: Tko87
Date Posted: April-20-2014 at 8:48pm
Well scratch the carb
Updated info
Pretty sure now it's the velvet drive tranny
When it hiccups usually heavy accel
It's lasts for a second and RPM's shoot up
Usually happens in 4 barral at about 2400 RPms
Shoots up to about 3600 RPms when hiccup happens I think tranny is slipping
Any suggestions and what is the correct fluid
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Posted By: ny_nautique
Date Posted: April-20-2014 at 9:47pm
Tico let's see some pictures of that Fish Nautique. They are really cool boats.
The fluid is Dexron III and there is no drain. To change the fluid you have to get a hand pump and suck it out. It's pretty easy though.
I'm sure others will chime in, but if it really is the transmission, it sounds like a rebuild might be in your future.
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- Jeff
1999 Ski Nautique
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Posted By: Tko87
Date Posted: April-20-2014 at 9:55pm
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I would love to share pics but how do upload them
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Posted By: Tko87
Date Posted: April-20-2014 at 9:57pm
NVMND
Just saw the link LoL
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Posted By: Tko87
Date Posted: April-20-2014 at 11:01pm
As I'm struggling with picture uploads can u tell me what drive tranny I should have
Presently using 1.5 to 1.0
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Posted By: Tko87
Date Posted: April-21-2014 at 11:32am
Ok more new info and sorry for the lack of
. I didn't mention that I recently put a 4 blade prop to gain more speed.
The prop shop said that trans is likely not slipping instead at certain RPM's
The prop is catching an air pocket " ventilation"
And they are telling me to put my 3 blade prop back on .
Opinions
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Posted By: ny_nautique
Date Posted: April-21-2014 at 11:49am
Well that would be the easiest fix to see if it is indeed your prop. Put the old one back on and see if the symptoms go away.
If they do, others on this forum may have better prop selections for you.
For posting pictures, are you posting on a computer, phone, or tablet?
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- Jeff
1999 Ski Nautique
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Posted By: Tko87
Date Posted: April-21-2014 at 1:03pm
Trying to load from my iPhone
Says file to big
Can't get photo bucket to do it either
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Posted By: Tko87
Date Posted: April-29-2014 at 9:29am
Finally !!
14x11 did the trick
I can cruise at 28 mph at 3k rpms
I can max out at 43 mph at 4500 rpms
Maybe more? Didn't wanna push it
Satisfied
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