Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-01-2011, 16:27   #61
Registered User

Join Date: Dec 2007
Location: Brisbane
Boat: deboated
Posts: 672
Thumbs down

Quote:
Originally Posted by Therapy View Post
I'll keep smoking..............

Oh yea.

I have a Westerbeke 30 B three and if I don't open the throttle a little it starts just fine but shakes like all hell for a couple of seconds which makes me think I will wear out mounts and alignment pretty quick.

So I start it and then drop the throttle immediately and it sounds happy.

I am happy.

Do you guys think I will stay that way?
"Run the engine at enough REVS for it to run smoothly until it sees a little temperature. (you will know as it will tell you it is happy) Use enough throttle for it to start easily in the environment your in."

As you replied to my comments you must have missed this line
Otherwise I missed the point
__________________

__________________
meyermm is offline   Reply With Quote
Old 06-01-2011, 16:57   #62
Senior Cruiser
 
Therapy's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: W Florida
Boat: The Jon boat still, plus a 2007 SeaCat.
Posts: 6,894
Images: 4
Quote:
Originally Posted by meyermm View Post
"Run the engine at enough REVS for it to run smoothly until it sees a little temperature. (you will know as it will tell you it is happy) Use enough throttle for it to start easily in the environment your in."

As you replied to my comments you must have missed this line
Otherwise I missed the point

I was sorta replying to all of them I thought.

But I guess I will remain happy.
__________________

__________________
Therapy is offline   Reply With Quote
Old 06-01-2011, 18:23   #63
Registered User

Join Date: Jul 2009
Posts: 774
Quote:
Originally Posted by Mark Zarley View Post
In the genset motor dept. I sure wish mine had a manuel throttle so on start-up it would run in the 800 rpm range instead of a constant 1800. Let it warm up as usual and before switching it "on" set the manuel throttle wide open at it's governed speed. Because of the "manuel" effort I would visit my genset on a better schedule and I am sure I would be rewarded with longer engine life

You need to make sure the genset isn't starting under load. At 1800RPM that's almost a full spin. The AC house breaker and the inverter should be shut off. The genset should start up then set into idle mode with no load. Start with everything in the off position then start the genny; if you have a normal idle then something is connected directly to it creating a load. In most cases it's the water heater or instrumentation.
Good Luck
__________________

Seahunter is offline   Reply With Quote
Old 06-01-2011, 18:46   #64
Registered User

Join Date: Dec 2008
Location: florida/philippinens
Boat: cape geroge 40' cutter
Posts: 6
The best way to start a cold diesel ( cold weather wise ) without using starting fluid , is to turn engine over a few times @ 1/2 throttle , then let the engine stand for 30 t0 45 seconds , then lower throttle to low to just a bump above and start . If the engine tries but doesn't stay running repeat procedure . A diesel runs by super-heating the fuel vapor and when the engine and fuel are cold it takes longer to vaporize the fuel . It is never good to run a cold engine at a high rpm ( gas or diesel ) unless your a diesel mechanic like me and then it is good for people in my line of work .
__________________
wally m is offline   Reply With Quote
Old 06-01-2011, 20:05   #65
Registered User
 
SimonV's Avatar

Join Date: Aug 2007
Location: Brisbane, Australia.
Posts: 1,316
Wow 65 posts on how to start a diesel and lots so different.
__________________
Simon

https://svgoodonya.blogspot.com.au/
SimonV is offline   Reply With Quote
Old 06-01-2011, 20:15   #66
Registered User

Join Date: Jul 2009
Posts: 774
Hey you can do what they do in Alaska and add a little gasoline to the fuel mix. What the hey, just pour a cup or two down the chute and throw a lit cigarette down there; and it'll save some wear and tear on the starter.
__________________

Seahunter is offline   Reply With Quote
Old 06-01-2011, 20:36   #67
Registered User
 
SvenG's Avatar

Join Date: Oct 2009
Location: Mexico heading South
Boat: Ericson 39B - Senta II
Posts: 1,169
Hey Simon,

Quote:
Originally Posted by SimonV View Post
Wow 65 posts on how to start a diesel and lots so different.
It does seem a bit excessive but ...

I read the user manual for the 4-108M and was amazed to see the instruction about starting on WOT. Never mind throttling back down right after ignition, I couldn't bring myself to start the engine at full screaming speed even if I were able to yank the throttle back right away, so I've been starting at just over idle, adjusting the RPMs to get just over shaking speed until warmed up. But I kept wondering if I was doing damage by not following the manual.

I also used to use the cold start pre-heat as if it were a choke; turn it on whenever starting cold. Then someone pointed out that it probably wasn't needed so I tried without and found out they were right. I had no idea that using the cold start assist meant not just heating the air intake but also dripping fuel onto (?) a heated plug with no flame arrester.

I'm glad the topic came up and got the treatment, I sure learned a little but important stuff.



-Sven
__________________
Senta II - http://www.Grenander.com/Senta_II/Blog/Blog.html
1977 Ericson 39B -- Hull # 216
SvenG is offline   Reply With Quote
Old 06-01-2011, 20:44   #68
Registered User

Join Date: Jul 2009
Posts: 774
Show me where it says full throttle start or WOT.
__________________

Seahunter is offline   Reply With Quote
Old 06-01-2011, 21:07   #69
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: UK/Portugal
Posts: 20,198
Images: 2
Send a message via Skype™ to boatman61
pirate

Actually I thought the Thread Question was funny....
Do you turn the key at......
500 RPM
600RPM
800RPM
Hilarious...... but I had to contribute.... seemed fun to keep it going......ROFL
__________________


Born To Be Wild
boatman61 is offline   Reply With Quote
Old 06-01-2011, 23:53   #70
Registered User
 
SvenG's Avatar

Join Date: Oct 2009
Location: Mexico heading South
Boat: Ericson 39B - Senta II
Posts: 1,169
Quote:
Originally Posted by Seahunter View Post
Show me where it says full throttle start or WOT.
Do you have access to the workshop manual for the 4.108M, 4.107M, 4.99M engines ? Those are the marine Perkins engines and they are covered in that one manual (at least).

That is where you will find, for cold or warm engine "with the throttle in the fully open position turn the starter switch ..." in section C.2

Let me know if you need more help finding the information and I'll send you a copy of the manual.

Thanks,



-Sven
__________________
Senta II - http://www.Grenander.com/Senta_II/Blog/Blog.html
1977 Ericson 39B -- Hull # 216
SvenG is offline   Reply With Quote
Old 07-01-2011, 06:03   #71
Senior Cruiser
 
Blue Stocking's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Georges, Bda
Boat: Rhodes Reliant 41ft
Posts: 4,114

Quote:
Originally Posted by SimonV View Post
Wow 65 posts on how to start a diesel and lots so different.
You can trust the information in my post #37--I think, maybe, perhaps, not sure now.
__________________
so many projects--so little time !!
Blue Stocking is offline   Reply With Quote
Old 07-01-2011, 06:56   #72
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 4,314
OK, now that we are all in agreement on how to start a diesel, how soon do you put it in gear and run it up to cruising rpm??
__________________
donradcliffe is offline   Reply With Quote
Old 07-01-2011, 08:12   #73
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: UK/Portugal
Posts: 20,198
Images: 2
Send a message via Skype™ to boatman61
pirate

Quote:
Originally Posted by donradcliffe View Post
OK, now that we are all in agreement on how to start a diesel, how soon do you put it in gear and run it up to cruising rpm??
As soon as possible if I'm dragging.... 5-10sec's after she fires....
__________________


Born To Be Wild
boatman61 is offline   Reply With Quote
Old 07-01-2011, 08:43   #74
Registered User

Join Date: Jul 2009
Posts: 774
I've located the discrepancies in question. There are 5 revisions of the 4-108 manuals not including 3 revisions of the "M" manuals. All older manuals with the "HS" and "O" (operate) indicators on the start switch as well as the intermediate models with "H" and "HS", require the accelerator to be advanced momentarily to the full open at start. Both and all versions of these manuals were superseded by the final version which only has "START" and "Off".
On models that still have or the added feature of Heat Start or Heat (either manifold heater or glow plugs) there IS a requirement to prime the intake manifold with fuel prior to actually starting the engine. It must be noted that this was not a normal feature on North American engines. However over the years with the thousands of engines built and used all over the world, the 4108 took on a life of its own and was adapted for use in different climates as well as different modes. It appears the 4108, the 4-108 or the 4-108M are as individual as the there are boats and owners.
__________________

Seahunter is offline   Reply With Quote
Old 08-01-2011, 06:51   #75
Senior Cruiser

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Santa Cruz
Boat: Boatless Again
Posts: 4,314
Quote:
Originally Posted by boatman61 View Post
As soon as possible if I'm dragging.... 5-10sec's after she fires....
It was only one second from start to firewall when the pirates were closing in on me in the Gulf of Aden, but I was wondering about the more leisurely starting situations--how long do people think the engine should warm up before you put significant load on it. I usually wait till the engine water has hit about 150 degrees, or about 5-7 minutes.
__________________

__________________
donradcliffe is offline   Reply With Quote
Reply

Tags
diesel, rpm

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
Beta Marine 20 Diesel - Won't Start 75c30 Engines and Propulsion Systems 32 28-03-2014 03:03
Diesel Won't Start After Sitting for a Year joburnet Engines and Propulsion Systems 56 17-03-2010 09:44
Plan for First Start of Diesel in Five Years TopHat Engines and Propulsion Systems 3 01-03-2010 06:19
Diesel Generator 3000 rpm - can it idle before ramping up Fuss Electrical: Batteries, Generators & Solar 2 05-04-2008 02:02
Diesel Engine is harder to start....? CSY Man Marine Electronics 16 13-02-2006 08:42



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:34.


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.