Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 07-10-2006, 16:02   #16
Registered User

Join Date: Jun 2005
Posts: 1,901
I'd like to know where your getting you're info. How can you justify saying the internals of a Yanmar are made by Kubota.
__________________

__________________
never monday is offline   Reply With Quote
Old 07-10-2006, 17:46   #17
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
Misc. Reply

Cat man do : The battery was disconnected and I cannot think of anything that might have been toasted. Sparks were certainly flying though. (Ever tied to catch cutting sparks with an old welding jacket?)
I will ring Diecon and Zenith tomorrow and have a talk to them. I agree that the Yanmar spins a little fast but the proven design and worldwide service should offset this. I would prefer a heavier, slower engine.
A curious comment that I received was that the heavy (2") prop shaft and large prop would contribute to difficult gearchanges on a light gearbox.
Richhh : What was it the Supermodel used to say "I don't get out of bed for less than $100,000" - probably misquoted) A competent marine engineer here can almost name their own price. If you are curious dummy up an immigration application and see how fast it gets approved.
__________________

__________________
Boracay is offline   Reply With Quote
Old 07-10-2006, 20:16   #18
Registered User

Join Date: May 2005
Location: Pennsylvania
Boat: Tayana 37, M-20/I-20 Scow
Posts: 250
Dunno

The 3QM block I have looks very much like some Kubota tractor engines in the neighborhood. Dunno since I havent begun to strip and boil the old block I have.
A long time ago I used to be an automotive engineer ... so nothing seems impossible with IC engine.
__________________
Richhh is offline   Reply With Quote
Old 08-10-2006, 02:29   #19
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
Yanmar are very much Yanmar. No Kubota. It is possible some small Kubota Tractors had Yanmar engines.
Yes Yanmar are fast revving. In a "play toy" boat, it will still see many years of trouble free life. In a comercial vessel it could be that a big slow reving donk would be best.
No there is nothing on a Diesel, at least older ones, that can be destroyed by welding with battery connected. What can be destroyed is the alterntor charge Diodes. So disconecting Battery is still good practice. I is possible, but I don't really know, that the very latest computer controlled Diesels could have the comp damaged if you welded with the battery connected.
Chris, remember your prop is going to have to change. And you have to be very aware of this. It may not be a simple case of "just another prop". You have to work backwards from Prop to engine, to be able to prescribe what engine power is going to replace your old one. So work out what you can swing under there, and then work out what engine powers will suit, then work out what engine models are available to suit.
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 08-10-2006, 13:02   #20
Registered User
 
JGI417's Avatar

Join Date: Mar 2005
Location: Tulsa OK
Posts: 59
Chris,
You said even when you tried the areostat, there was nothing, sounds strange, not to even get a pop with that, what about compression,
just thinking
__________________
John
JGI417 is offline   Reply With Quote
Old 09-10-2006, 01:02   #21
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
Whats a Perkins F2?

I have been offered a totally rebuilt, newly marinised Perkins F2 for $9,500.
Trouble is, I've never heard of a Perkins F2.
I can also get a marinised Isuzu 4JB1 with a PRM box for $14,000 by Zenith Engineering.
Looks to be a more serious engine than the Yanmar.
So, has anyone any experience with a marinised Isuzu 4JB1 ?
__________________
Boracay is offline   Reply With Quote
Old 09-10-2006, 02:29   #22
Registered User
 
cat man do's Avatar

Join Date: Aug 2006
Location: Brisbane Australia [until the boats launched]
Boat: 50ft powercat, light,long and low powered
Posts: 4,409
Images: 36
Mate, thats why I put you onto them. I'd reckon anything that comercial boys use can't be too bad. Interestingly when i was buying my motors the Yanmar guy agreed that the Isuzu would have better longivity and I think youll find it has more torque, which is why I got those 3-3 litre cummins for my project. They have heaps.

Good luck

Dave
__________________
cat man do is offline   Reply With Quote
Old 07-11-2006, 01:27   #23
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
My engine has been dekaputed...

I gave up on expecting the mechanic to arrive.
I brought the SAE spanners and an electronic lift pump from my local truckies shop.
Connected everthing up.
Didn't work.
My cries of rage attracted the attention of the owner of the boat on the next berth, a professional diesel mechanic.
He opened the bleed screw on the injector pump. Many bubbles flowed forth and he explained how the injector pump would not work with air in it.
He cracked one of the nuts on the line to an injector and fuel flowed forth.
The battery died.
On the way home I dropped in on the local battery shop (Power Products of Drummoyne) and paid for a battery to be delivered next morning.
Russell arrived with the battery next morning and installed it on the boat. He even put proper connections on the lift pump and wired everthing up.
He had to go to work so I completed bleeding the injectors.
I sprayed Aerostart into the engine a few times.
After I stopped using the stop lever as a throttle the engine started.
Runs well now.
Now I have the problem that the steering pedestal mounted gearchange/throttle will not select neutral. Any suggestions?
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 11-11-2006, 11:55   #24
Registered User

Join Date: Jan 2006
Location: North Carolina
Boat: 44 footer
Posts: 923
Congrats on getting it working again!

When I can't find neutral its because someone stepped on the bowden tube beside the transmission.

Kinks the cable and give to much friction! Have somebody move the throttle while you watch the cable where ever you can see it.

My bet is on the cable got bumped or kinked during your engine repairs!
__________________
Zach is offline   Reply With Quote
Old 11-11-2006, 13:10   #25
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
I go with Zach on the cable at the mo, till you can give more info. what exactly do you mean that it won't select nuetral. Is it stuck, is it going from fwd to rev without locking in N, or or or. Is it a Morse or similar that N is between Fwd/Rev?
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 11-11-2006, 13:27   #26
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
More work...

I guess this means that I need to find another place for all that junk...
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 12-11-2006, 01:20   #27
Registered User

Join Date: Sep 2006
Posts: 112
Gee that was some mechanic who jury rigged the fuel pump and scratched his head when it wouldn't work without bleeding it!
__________________
yotphix is offline   Reply With Quote
Old 18-06-2007, 22:29   #28
Moderator
 
Boracay's Avatar

Cruisers Forum Supporter

Join Date: Feb 2004
Location: Pelican Bay, Great Sandy National Park
Boat: Steel Roberts Offshore 44
Posts: 5,175
Images: 18
My engine has leaked it's last....

When I moved my boat into a differnt berth I took it for a run round the bay.

The engine leaked oil everywhere.

So it's gone to that great spare parts bin in the sky...

My thanks to the friendly folks at Polaris Marine.
Attached Thumbnails
Click image for larger version

Name:	Engine Out.JPG
Views:	102
Size:	78.4 KB
ID:	1359  
__________________
Rust never sleeps
Boracay Blog.
Boracay is offline   Reply With Quote
Old 19-06-2007, 02:11   #29
Registered User

Join Date: Nov 2006
Posts: 976
Images: 6
Does this mean you are putting in a new engine ? Dont tell me you are going purist and sailing everywhere ? ; ) What have you chosen ? Being the lucky owner of a steel boat did you consider keel cooling ? My engine goes in this week (isuzu 53 hp keel cooled) zf box.
__________________
cooper is offline   Reply With Quote
Old 23-06-2007, 19:30   #30
Registered User

Join Date: Jun 2007
Posts: 1
has anyone checked to be sure that the battery got hooked-up correctly? not turning over with the electric starter says: no electricity from the battery to the electric starter. cn
__________________

__________________
chesternimitz is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Basic Engine Gauge Theory and Testing GordMay Electrical: Batteries, Generators & Solar 12 20-10-2015 09:54
Yanmar Tips GordMay Engines and Propulsion Systems 18 29-07-2012 06:04
Diesel Engine Fiasco Confessional SkiprJohn Engines and Propulsion Systems 10 29-10-2006 11:59
Need a diesel "intro" for the Admiral chuckiebits Engines and Propulsion Systems 3 05-06-2006 11:09
Engine Diagnostic Charlie Engines and Propulsion Systems 22 22-04-2006 16:28



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:25.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.