Thanks so much Joe. Didn't know there was a belt on the 4000. Does it go
around the whole wheel assembly? It's hidden nicely.
I will probably do as you say and buy a new drive unit and see if that works.
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On Thu, Jun 24, 2021 at 3:58 PM, Della Barba, Joe via
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I have an old AH-4000. If it starts doing what you describe the belt may be
slipping or the pin that holds the drive gear is going. I have rebuilt my drive
many times and my current unit is a combination of 3 or 4 old ones I have
scavenged over the years.
You can try and fix it or get a new drive for around $600 or so. It will work
fine with the AH-4000 computer. The CPT is a much stronger unit, but keep in
mind in both cases the weight of the boat is being used as a proxy for how hard
the boat is to steer. These things are really only loosely related at best. An
AH-4000 has plenty more power than needed to steer a freighter, it isn’t
physically hard to steer a big ship. The issue would be the steering algorithms
would be way off.
If your boat is hard for YOU to steer, Otto will have a hard time too. After
fixing or replacing your drive I would look to getting the boat to balance.
All that said, the AH-4000 is hopeless in a big following sea.
Joe
Coquina
C&C 35 MK I
From: Peter Cowenhoven via CnC-List <cnc-list@cnc-list.com>
Sent: Thursday, June 24, 2021 2:18 PM
To: Stus-List <cnc-list@cnc-list.com>
Cc: Peter Cowenhoven <pscowenho...@yahoo.com>
Subject: [EXTERNAL] Stus-List Wheel Drive Autopilot
Does anyone have any experience with the CPT belt driven vs the old Autohelm
4000? Does the CPT have more turning force?
I've got the old 4000 and many times it doesn't turn the wheel and just clicks.
Certainly when there's a lot weather helm there's no chance.
I'm also wondering if a new 4000 drive unit would be able to hold the force of
the wheel better.
I see the 4000 or the new EV 1000 is rated st 16,500 and I'm at about 13,500
while the CPT is rated to 40,000.
Thanks in advance for any intel or thoughts on this.
Best,
Peter
84 Landfall 35
Westbrook, CT
Sent from Yahoo Mail on Android
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to the list - use PayPal to
send contribution -- https://www.paypal.me/stumurray Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the
costs involved. If you want to show your support to the list - use PayPal to
send contribution -- https://www.paypal.me/stumurray Thanks - Stu
