Transmission Slow Reverse - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 12 Old 12-15-2008 Thread Starter
Senior Member
 
Join Date: Sep 2003
Posts: 268
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Transmission Slow Reverse

I've got a hurth 100? transmission on my Westerbeke W21 that has some transmissions issues. It goes into forward instantly, but when shifting into reverse, it sits there for maybe 10 seconds before engaging. Once engaged, it works fine. If I shift into neutral and then back into reverse, it agains instantly engages. However, if I shift into forward and then try reverse, it has the same hesitation to engage again. The tranny fluid looks good and is at the proper level. I can't quite visualize what's going on inside the transmission, but it's like something is just getting stuck. Any ideas? The PO had the tranny rebuilt about a year before I bought the boat.

Coming into the dock at the marina we're staying at for the winter here in Punta Gorda I managed to take out a dock box with our bowsprit for lack of the instant reverse. Of course, it didn't help that I had a howling wind at my back, 12,000# of boat moving forward, two dock hands with their collective heads up their posteriors, and me docking for the first time with our new to us boat!! So now I own a slightly damaged dock box.

I plan on draining the tranny and putting in new fluid and seeing if that helps. I'm not optimistic, however. I hate working out the bugs on a new boat!!!

Cheers

"There's a wind in my sails that protects and prevails." - "Six Months in a Leaky Boat", Split Enz

Last edited by sander06; 12-15-2008 at 04:32 AM. Reason: spelling
sander06 is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 12 Old 12-15-2008
Senior Member
 
Join Date: Sep 2006
Location: Scotland
Posts: 2,364
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 9
 
Sander :

Disconnect the gearshift cable from the gearshift lever and check firstly that the lever on the gearbox will engage reverse readily, then check that your cable is not sticking or dragging.

Gears should not hesitate like that. They normally engage instantly.

If the cable is dragging, then try lubing it. I find that WD40 works well for me. I have never known a cable to stick that has been lubed with WD40, and that includes quite a few motorbikes.
Rockter is offline  
Quote Quick Reply Share with Facebook
post #3 of 12 Old 12-16-2008 Thread Starter
Senior Member
 
Join Date: Sep 2003
Posts: 268
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Thanks for the suggestion, Rockter. Unfortunately, that's not the cause. It's internal to the transmission which usually means $$$$$$! I'll change the oil and see how things go.

Merry Christmas from Punta Gorda!

"There's a wind in my sails that protects and prevails." - "Six Months in a Leaky Boat", Split Enz
sander06 is offline  
Quote Quick Reply Share with Facebook
post #4 of 12 Old 12-16-2008
Senior Member
 
Join Date: Sep 2006
Location: Scotland
Posts: 2,364
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 9
 
I trust that it is one of these hydraulic things that does not mesh directly?

10 seconds is a long time lag.
Rockter is offline  
Quote Quick Reply Share with Facebook
post #5 of 12 Old 12-16-2008
Member
 
Join Date: Aug 2000
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
There is a toubleshooting procedure in the Hurth manual for delayed engagement, which I have used for a Hurth 150.

Drain oil and replace with one quart of diesel

run engine for 3 minutes in idle while engaging forward and reverse at 10 second intervals

stop engine and drain diesel

fill transmission with fluid



Rodger
rcarr is offline  
Quote Quick Reply Share with Facebook
post #6 of 12 Old 12-16-2008
Senior Member
 
chucklesR's Avatar
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,979
Thanks: 10
Thanked 31 Times in 31 Posts
Rep Power: 10
     
I had the same problem with my Westerbeake 30b's tranny. The shift level operates a valve which then engages the gears hydraulically. The transmission is a sealed unit and not repairable in the field. Fortunately mine was covered by the warranty.

If yours is similar to mine replacement is the only option, it will get worse over time.
chucklesR is offline  
Quote Quick Reply Share with Facebook
post #7 of 12 Old 12-16-2008
Senior Member
 
timebandit's Avatar
 
Join Date: Sep 2002
Posts: 928
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 13
 
So, when did it start?

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

Mac 25
Copernicus
Southern California
I am not a prejudice racist sexist bigot. I just hate stupid people.
timebandit is offline  
Quote Quick Reply Share with Facebook
post #8 of 12 Old 12-17-2008 Thread Starter
Senior Member
 
Join Date: Sep 2003
Posts: 268
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Thanks for the comments. I've contacted the PO to see if he can suggest anything. I only recently purchased the boat that hadn't seen action for a year being stored on the hard, so it may be just the fact that it sat for so long. I trust, implicitly, that the PO would have told me about the problem had it existed prior to purchase. I think that hydraulic transmissions were developed to make the rest of us mortals look stupid! I know a lot of stuff, but the inner workings of this thing are an absolute mystery to me!!!

Carry on!!

"There's a wind in my sails that protects and prevails." - "Six Months in a Leaky Boat", Split Enz
sander06 is offline  
Quote Quick Reply Share with Facebook
post #9 of 12 Old 12-30-2008
ancient mariner
 
captbillc's Avatar
 
Join Date: Jul 2008
Location: duluth ,minnesota
Posts: 438
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 8
 
my friend has a yanmar 3GM with a kanzaki tranny (very similar to the hurth) . several years ago it would not go into forward some of the time. i took apart the tranny and checked it over. i put the reverse discs in the forward clutch & the forward discs in the reverse. all it cost him was for seals & gaskets . the tranny worked fine after that.

Liberals are people who care about others. Freethinkers are not constrained by the myths of religion.
captbillc is offline  
Quote Quick Reply Share with Facebook
post #10 of 12 Old 12-30-2008 Thread Starter
Senior Member
 
Join Date: Sep 2003
Posts: 268
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
 
Thanks for the info. I drained/pumped the tranny oil out and found that it was a real mess. It looked like it was mineral oil or regular oil. Anyways, I've put in regular ATF, but it's still got the problem. The PO said that he had the tranny rebuilt just before I bought it so it must have new thrust bearings, etc. I'm thinking that the tranny may just be gunked up with crud from the original oil that was used. I've also considered just flushing the entire thing out to clean the works, but I'm not sure what to use as a flush although diesel fuel has been suggested. I may have to bite the bullet and consult with a tranny mechanic!

"There's a wind in my sails that protects and prevails." - "Six Months in a Leaky Boat", Split Enz
sander06 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Shorepower and Reverse Polarity oft Gear & Maintenance 29 01-25-2015 09:51 AM
transmission question almostbroke Gear & Maintenance 10 09-17-2012 09:56 AM
2GM Transmission, going forward when engaging into reverse Stephane99 Gear & Maintenance 2 10-20-2008 10:19 AM
Transmission woes sailrmon Gear & Maintenance 2 10-15-2008 05:18 PM
Breakdown in Paradise Mark Matthews Gear and Maintenance Articles 0 04-29-2002 08:00 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome