2 stroke inboard - Page 2 - 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 > General Interest > General Discussion (sailing related)
 Not a Member? 


Like Tree6Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 10-25-2013
Senior Member
 
Join Date: Feb 2002
Posts: 214
Thanks: 3
Thanked 2 Times in 2 Posts
Rep Power: 13
jgeissinger is on a distinguished road
Re: 2 stroke inboard

Re 2 stroke diesels: That's why so many dragsters, etc. with Roots style superchargers refer to them as 6-71, 8-71 etc. That's where they originally came from.
Reply With Quote Share with Facebook
  #12  
Old 10-27-2013
Sailor
 
Join Date: Sep 2013
Location: Florida
Posts: 20
Thanks: 0
Thanked 4 Times in 3 Posts
Rep Power: 0
Foxy is on a distinguished road
Re: 2 stroke inboard

I think having an oil/gas mix in the fuel tank for long periods of time might be problematic and face it, fuel tanks on sailboats are not filled often. Aside from the oil turning into varnish, we now have ethinol to deal with in gas. Another reason to choose diesel.
Reply With Quote Share with Facebook
  #13  
Old 10-27-2013
Senior Member
 
Join Date: Oct 2009
Location: Virginia
Posts: 1,037
Thanks: 3
Thanked 14 Times in 14 Posts
Rep Power: 5
chuck53 is on a distinguished road
Re: 2 stroke inboard

Quote:
Originally Posted by Coquina View Post
There are TONS and TONS and TONS of 2-stroke diesels around!
GM Diesel - now Detroit Diesel - ring a bell? 6-71 etc.

Detroit Diesel Series 71 - Wikipedia, the free encyclopedia
Model Displacement Engine configuration Horsepower
1-71 1.2L (71ci) Single-cylinder 10
2-71 2.3L (142ci) I-2 68
3-71 3.5L (213ci) I-3 113
4-71 4.7L (284ci) I-4 160
6-71 7.0L (426ci) I-6 238
6V-71 7.0L (426ci) V-6 238
8V-71 9.3L (568ci) V-8 318
12V-71 14.0L (852ci) V-12 450
16V-71 18.6L (1136ci) V-16 635
24V-71 27.9L (1704ci) V-24 1800
Don't forget the 92 series. Lots of them out there as well but everything I've ever read, seems the 71's were the better, more reliable engine.
__________________
Catalina 34
Reply With Quote Share with Facebook
  #14  
Old 10-29-2013
Coquina's Avatar
Senior Member
 
Join Date: Dec 2012
Location: Maryland
Posts: 420
Thanks: 4
Thanked 5 Times in 5 Posts
Rep Power: 2
Coquina is on a distinguished road
Re: 2 stroke inboard

What may fool some people is 2-stroke diesels use oil in the sump just like a 4 stroke and have camshafts and valves as well. They do have a fun feature that if the rings get bad and the engine sucks in the lubricating oil they will run away at full blast or more until the oil is gone.
__________________
Joe Della Barba
Coquina
C&C 35 MK I

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


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #15  
Old 10-29-2013
Senior Member
 
Join Date: Oct 2009
Location: Virginia
Posts: 1,037
Thanks: 3
Thanked 14 Times in 14 Posts
Rep Power: 5
chuck53 is on a distinguished road
Re: 2 stroke inboard

Quote:
Originally Posted by Coquina View Post
What may fool some people is 2-stroke diesels use oil in the sump just like a 4 stroke and have camshafts and valves as well. They do have a fun feature that if the rings get bad and the engine sucks in the lubricating oil they will run away at full blast or more until the oil is gone.
At least you don't have to mix oil with the diesel like you do with gas on gas 2 strokes.
Froggy likes this.
__________________
Catalina 34
Reply With Quote Share with Facebook
  #16  
Old 11-13-2013
Member
 
Join Date: Nov 2013
Location: South East Wisconsin, Racine
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 1
MichaelAngel442 is on a distinguished road
Re: 2 stroke inboard

The early (1970) CAL 27's came with VIRE 7hp and 12hp.
christian.hess likes this.
Reply With Quote Share with Facebook
  #17  
Old 11-13-2013
capta's Avatar
Master Mariner
 
Join Date: Jun 2011
Location: somewhere in the Windward or Leeward Islands
Posts: 1,399
Thanks: 13
Thanked 66 Times in 61 Posts
Rep Power: 4
capta is on a distinguished road
Re: 2 stroke inboard

Quote:
Originally Posted by chuck53 View Post
At least you don't have to mix oil with the diesel like you do with gas on gas 2 strokes.
Actually, diesel is basically kerosene with 4% oil.
When in Rarotonga I was offered as much free kerosene (jet fuel) as I could put in my tanks, because the drums had been stored wrong and some water had gotten in. Not a big problem for a diesel, but a HUGE problem for a jet engine, I guess. After some research, I found I could safely use it if I added 4 gallons of motor oil for every hundred gallons of diesel; scored 250 gallons of free fuel oil!
Also, I've never heard of a diesel, or a marine gasoline engine failing because of rough water and/or heel. Most "marine" diesels and gas engines have a sufficiently deep sump to handle the heel/roll as no boat stays all the way heeled all the time and the rougher, the more movement. Most engine failures in rough water are caused by fuel filters plugging up from dirty tanks.
Another reason not to adapt a stationary or auto engine to marine w/o knowing what one is doing.
christian.hess likes this.
__________________
"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.

Last edited by capta; 11-13-2013 at 08:17 PM.
Reply With Quote Share with Facebook
  #18  
Old 11-14-2013
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,748
Thanks: 99
Thanked 147 Times in 143 Posts
Rep Power: 1
christian.hess is on a distinguished road
Re: 2 stroke inboard

again good points capta....its not the heel that kills diesel in rough weather, its unmaintained diesel filters and tanks that cause it to fail when everything gets sloshed aroudn to hell, they stall and clog up the injectors which becomes a task to be done only at the dock.

I will point out though that some diesel manufacturers DO state maximum tilt angles and heel for normal use...it might have something to do with lubrication over a long period of time...I know I didnt feel too comfortable when motorsailing on my small h28 with a yanmar 2gmf...

having said that we did use it a couple of times to get out of an iffy situation...mosty thick chop when the wind died and seas were still sloppy and we were close to shore...
Reply With Quote Share with Facebook
  #19  
Old 11-14-2013
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,748
Thanks: 99
Thanked 147 Times in 143 Posts
Rep Power: 1
christian.hess is on a distinguished road
Re: 2 stroke inboard

to the op I WOULD love ideas on inboard 2 strokes from days gone by...I wouldnt mind trying to fabricate one since outboards are plentiful here and I am in need of an inboard as I prefer it...
Reply With Quote Share with Facebook
  #20  
Old 11-14-2013
christian.hess's Avatar
Senior Member
 
Join Date: Sep 2013
Location: el salvador
Posts: 3,748
Thanks: 99
Thanked 147 Times in 143 Posts
Rep Power: 1
christian.hess is on a distinguished road
Re: 2 stroke inboard

Quote:
Originally Posted by chuck53 View Post
At least you don't have to mix oil with the diesel like you do with gas on gas 2 strokes.

there are many 2 strokes that use oil injection....

VESPA motorcycle engines do so this way...they have a fuel tank and oil tank...

however those that wanted max performance took the oil injection off and mixed their own batches of oil to fuel ratio...

I have not looked into a marine version of this engine but I think it would be a great solution to old or stale fuel mix combos...
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
changing from 4 stroke to 2 stroke newhaul Gear & Maintenance 9 10-02-2010 03:42 AM
Newport 27 w/o inboard WheresTheLeak Boat Review and Purchase Forum 0 05-11-2010 12:44 PM
Ascaird of my first Inboard mattstamour Introduce Yourself 3 02-11-2009 08:01 PM
2 stroke vrs 4 stroke outboards dsbentley Gear & Maintenance 11 07-10-2006 11:27 PM


All times are GMT -4. The time now is 01:30 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.