1999 Catalina 380 - Engine stalling in reverse - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 11-17-2007
Junior Member
 
Join Date: Nov 2007
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ibossenger is on a distinguished road
1999 Catalina 380 - Engine stalling in reverse

Engine idle is set @ 1,000RPM, engine (42HP Westerbeke) and transmission (Hurth HBW150 - A2.5, ratio A=2.63, B=1.95) are fine. Equipped with 18RH12 3 blade prop. Engine stalls when engaging into reverse if boat forward speed 3 - 4 knots. (Shifting into neutral, waiting for engine to idle down, then shifting into reverse) Below boat speed of 4 knots we can engage into reverse, increase throttle and all appears normal.
Any suggestions?
Reply With Quote Share with Facebook
  #2  
Old 11-17-2007
erps's Avatar
the pointy end is the bow
 
Join Date: Aug 2006
Location: La Conner, Washington
Posts: 6,192
Thanks: 2
Thanked 26 Times in 26 Posts
Rep Power: 10
erps will become famous soon enough erps will become famous soon enough
Shifting into reverse at 4 knots and killing the engine is kind of like popping the clutch on your car in 2nd gear at a stop sign on a hill. I don't think it's a mechanical problem, I think it's just a matter of learning the idiosyncrasies of your boat and then adapting to them.
__________________
Ray
S.V. Nikko
1983 Fraser 41
La Conner, WA


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Boating for over 25 years, some of them successfully.
Reply With Quote Share with Facebook
  #3  
Old 11-17-2007
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,931
Thanks: 75
Thanked 214 Times in 206 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
I'm wondering if your tach is accurate. 1000 rpm is a pretty high idle speed for a diesel, and if your idle is too low then the symptoms you describe make more sense.

We had a 40 hp, same gear, very similar prop and never experienced this behaviour in 12 years of ownership. Idle was set around 600 and we never stalled the engine by shifting to reverse.

btw, IIRC the hurth manual says there's no harm in shifting to reverse at any rpm, so maybe you can get around this by keeping the revs up a bit. Then again, the need to shift to reverse at over 4 knots should be a rare event.

Last edited by Faster; 11-17-2007 at 12:58 PM.
Reply With Quote Share with Facebook
  #4  
Old 11-17-2007
Valiente's Avatar
Senior Member
 
Join Date: Jun 2006
Location: Toronto
Posts: 5,491
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
Valiente has a spectacular aura about Valiente has a spectacular aura about
I agree. I tend to "coast" in neutral as much as possible when docking, and only give a high rev burst of reverse if I'm overshooting before a spring can be put on. My idle is about 700 rpm on a Westerbeke 52, I have the B-W transmission, and a three-blade 18 x 13, so it's not wildly different. I know that when I do reverse out of a slip, I tend to spin the engine up just to avoid prop-walking and to get sufficient way on for steerage. Noisy, but effective.

I can't recall when I've had to hit reverse, actually, if I was going more than four knots (which would put drag on the prop as you shifted to reverse). On the other hand, people who see my boat assume I'm unlikely to stop quickly anyway, and so give us a wide berth.

I anticipate that when I install our new four-bladed, 19 x 15 VariProp this spring, that I will have to learn how to shift all over again, because there is always a definite time lag as the prop blades redeploy. The upside of this is that I expect significantly more low-speed torque with the increased bite of the four-blade, and less drag, of course, under sail when those big blades are feathered.
Reply With Quote Share with Facebook
  #5  
Old 11-17-2007
Senior Member
 
Join Date: Sep 2006
Posts: 2,238
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 9
Rockter will become famous soon enough
That's an unusual one.
Try geting the boat to move the same 3-4 kt speed speed in reverse, then try shifting to forward.
Do you get the same symptom?
Reply With Quote Share with Facebook
  #6  
Old 11-17-2007
Junior Member
 
Join Date: Nov 2007
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
ibossenger is on a distinguished road
Thanks - we had a mechanic working on the problem, raized RPM from 850 to 1,000 on his LED digital tachometer to see if we could overcome the stall. This may have made some difference but not much. Had the boat out of the water, cutlas bearing, strut, shaft etc. all seem fine.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Runaway Diesel Engine Ben Hilke Gear and Maintenance Articles 0 07-19-2004 08:00 PM
Caring for the Cruising Outboard Doreen Gounard Gear and Maintenance Articles 0 04-22-2003 08:00 PM
Surveying a Diesel Engine Tom Wood Buying a Boat Articles 0 01-26-2003 07:00 PM
Surveying a Diesel Engine Tom Wood Gear and Maintenance Articles 0 01-26-2003 07:00 PM
Replacing the Diesel Engine Sue & Larry Gear and Maintenance Articles 0 06-12-2000 08:00 PM


All times are GMT -4. The time now is 10:36 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.