Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 01-30-2011, 10:01 AM   #15
Moderator Emeritus
 
Mike Canter's Avatar


 
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
You might find this video interesting. It is a V-12 Deltic Locomotive engine. It is a two cycle opposed piston engine. If you count them you will get 24 pistons and three crankshafts. It is a very common engine in European trains. Our WWII diesel subs used 8, 10 and 12 cylinder 2 cycle opposed piston Locomotive engines. These motors only ran at 720-750 rpm max. Some other subs used diesel motors that run from 250 to 500 RPM.

YouTube - Deltic engine
__________________

__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-30-2011, 10:16 AM   #16
Senior Member
 
powderman's Avatar
 
Join Date: Mar 2010
Location: N. E. Ohio & Lady Lake Fl.
Posts: 889
I worked in a locomotive shop where we did repairs. I can't imagine why they left it outside without running. Those things have 13" pistons, and take a couple of drums of coolant (thats why we let them run all the time, as instead of coolant we used water). In the first part of that video they had the rack pulled, so it was turning over without compression, but I'll bet those batteries were warm.
__________________

__________________
powderman is offline   Reply With Quote
Old 01-30-2011, 10:21 AM   #17
Moderator Emeritus
 
Mike Canter's Avatar


 
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
Wow Powderman, that had to be fun. So when they pull the rack does that lift the valve so no compression. Do they do that to pre-oil them plus to blow out any water in the cylinders?
__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Old 01-30-2011, 10:38 AM   #18
Senior Member
 
powderman's Avatar
 
Join Date: Mar 2010
Location: N. E. Ohio & Lady Lake Fl.
Posts: 889
Probably all of the above, but I never asked. I imagine for the most part they had to cut the compression just to turn it over. They had huge battery banks on both sides to crank the thing. At idle, you could just about count each cylinder as it fired. When I first started as an apprentice (Youngstown Sheet & Tube Locomotive Shop), they were in the middle of a rebuild. Wet sleeves, and pistons that are hard to imagine. Those were the good old days.
__________________
powderman is offline   Reply With Quote
Old 01-30-2011, 11:22 AM   #19
Moderator Emeritus
 
Mike Canter's Avatar


 
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
When I was in the Navy I took a ride in a diesel sub. It was amazing back in the engine room. They had Fairbanks Morse 10 cylinder locomotive engines and yes you could feel and hear each cylinder firing at 700 RPM.
__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Old 01-31-2011, 11:16 AM   #20
Senior Member
 
distaff's Avatar
 
Join Date: Dec 2009
Posts: 1,191
How much would the block on one of those locomotive diesels expand between dead cold and full operating temperature?
__________________
Paul
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote
Old 01-31-2011, 11:31 AM   #21
Moderator Emeritus
 
Mike Canter's Avatar


 
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
Paul that is a lot of cast iron and I would say a lot. Even a small motor exoands a lot . To give you an idea if we set the valve lash at .012 on our race engines cold it measures .025 hot. The supercharger belts from the crankshaft to the blower on top of the motor are loose on a cold motor and real tight on a hot motor. All this is on a regular V8 car motor. This is one reason that a majority of truck drivers start their motors and sit at high idle for at least five minutes before they move.

Hey Paul, stop sending all that cold Canadian air and snow down into the lower 48. We give up and cry uncle (lol)
__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Old 01-31-2011, 11:55 AM   #22
Senior Member
 
Dadeaux's Avatar
 
Tiffin Owners Club
Join Date: Jan 2009
Location: Orange Beach, AL
Posts: 744
As a young man working the rice fields of Arkansas we had diesel tractors that you would "pull the rack" on to start, it was hopeless without that.
__________________
Del & Charlotte
RVing - Time well wasted
2004 Phaeton 40TGH w/ 2010 Acadia
Dadeaux is offline   Reply With Quote
Old 01-31-2011, 12:05 PM   #23
Senior Member
 
distaff's Avatar
 
Join Date: Dec 2009
Posts: 1,191
Mike,

We don't create it, but we sure do need to get rid of it, sending it north isn't an option, so sorry.

We had 8" this weekend, -17 F this morning here in Calgary. Should be close to 40 F by the weekend.

We can't run south this year, had puppies on Dec. 26 and I'm busy trying to get some deals done, so we have to hunker down.

I am curious (on any engine but especially these big beasts) if the cylinders remain true when they expand or if they deform. I can't imagine that the expansion forces are perfectly consistent and symmetrical. I wonder if the piston rings compensate for shape as well as dimension changes.
__________________
Paul
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote
Old 01-31-2011, 12:19 PM   #24
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Quote:
Originally Posted by distaff View Post
How much would the block on one of those locomotive diesels expand between dead cold and full operating temperature?
The coefficient of thermal expansion of gray cast iron is 0.000006 inch per inch of length per degree Fahrenheit. Therefore, if the block were 15 feet (180 inches) long and the temperature changed from 35 degrees F to 160 degrees F (delta T of 125 degrees F), the growth in length would be 0.000006 x 180 inches x 125 degrees = 0.135 inch or slightly more than 1/8 inch (0.125 inch).

Rusty
__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Old 01-31-2011, 12:27 PM   #25
Senior Member
 
distaff's Avatar
 
Join Date: Dec 2009
Posts: 1,191
Rusty,

Thanks, very interesting and less than I thought.
__________________
Paul
2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote
Old 01-31-2011, 01:36 PM   #26
Moderator Emeritus
 
Mike Canter's Avatar


 
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
Paul, those diesel and the ones in the MHs use what is called a wet sleeve. The sleeve is a lot better quality metal than the cast iron blocks and since it is surrounded by water instead of cast iron it maintains its shape better throughout the temperature range. The other thing that is great about wet sleeves is that you can change one or all cylinders while the block remains in the vehicle or locomotive or submarine or ship. This is what is meant by an in frame overhaul. The submarine I went out in had a couple of engines that had bad cylinders in them. They would shut off the fuel to those cylinders and if they had to they disconnected the connecting rod so the piston didn't move. When they got back into port they would pull that wet sleeve and put a new sleeve, piston and rod in it and a way they would go again. You can do that on our MH diesel engines but you have to pull the whole head off. Some diesels have invidual heads for each cylinder that would make that easier.
__________________

__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
Mike Canter is offline   Reply With Quote
Reply



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

Advanced Search
Display Modes

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
Cold weather use 06 Excursion 39s sevenmacs Fleetwood Products Owner's Forum 1 10-27-2010 06:36 AM
Cold Weather Traveling A6IntruderBN iRV2.com General Discussion 7 10-18-2010 11:41 PM
diesel engine shutting down: Need some quick advice mycoolbeans Winnebago Industries Owner's Forum 18 09-29-2010 08:13 AM
Ford-Built Diesel Maximizes 2011 Super Duties Productivity DriVer RV Industry Press 24 06-09-2010 05:29 AM
Cold Weather Camping.....No, Really Cold Weather Camping arkaussie Winnebago Industries Owner's Forum 14 03-08-2007 02:44 PM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:32 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.