Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×


Reply
 
Thread Tools Display Modes
 
Old 10-14-2015, 10:35 AM   #21
Bus Crazy
 
Join Date: Feb 2012
Location: Salt Lake City Utah
Posts: 1,635
Year: 2000
Chassis: Blue Bird
Engine: ISC 8.3
Thanks for the tip about the mechanical priming lever on the B engines. It's one more reason why I find working on Cummins engines so pleasant (compared to other engines): they're designed to make servicing easy. I'll have to look for a similar feature on my other engines.

I had a second look at the lift pump operation on my ISB this morning. You're right, it does energize the lift pump at key-on -- but it's on for only about half a second on my pickup ('98.5 Dodge with an '01 engine computer, I think). If I bump the starter I hear the lift pump come on again and it runs about 30 seconds. It could be different with the vocational ECM used in buses..?

family wagon is offline   Reply With Quote
Old 10-14-2015, 12:22 PM   #22
Skoolie
 
Join Date: May 2013
Location: Monrovia California
Posts: 151
Year: 1984
Coachwork: Blue Bird
Engine: 3208 turbo Cat
Rated Cap: 78
Hey Guys, this is good information, I have been afraid to replace the fuel filters on my 1984 BB CAT 3208, is it the same general Idea? can anybody here write something like Family wagon and Nat did? for a Cat engine.

J
juliol is offline   Reply With Quote
Old 10-14-2015, 12:25 PM   #23
Bus Crazy
 
opus's Avatar
 
Join Date: May 2010
Location: Montana
Posts: 1,626
Year: 1995
Coachwork: Blue Bird
Chassis: All-American R/E
Engine: 8.3 Cummins
Rated Cap: 72
3208 is the same. Pull the filter, fill it with fuel, put it on and fire it up. No need to do anything else. There should be a twist lock type hand primer as well, should you ever need it.
opus is offline   Reply With Quote
Old 10-15-2015, 02:15 AM   #24
Skoolie
 
Join Date: Oct 2015
Posts: 103
Nat

Hey thanks again all of you I think my bus has the electronic engine you speak if because when I turn the key but let off the ignition too soon she acts likes she's flooded and then won't start for like 10 minutes does that make sense to u?
Sunbear is offline   Reply With Quote
Old 10-15-2015, 06:58 AM   #25
Bus Geek
 
bansil's Avatar
 
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
okay my advice to add

I got very tired after pumping the stupid priming pump a million times so I-->

My fuel tank cap is solid and not vented, so this told me that I had a vent hose on the tank it's self

Using a tire pump I put the attachment to fill up air mattresses on the end and inserted into the vent hose, I pressurized tank to 8/10 pounds (do not go crazy with it and dont go higher it will do no good except spray everwhere)

I then cracked the lines at the filter and then at each injector and she fired right up

when done unscrew cap to let pressure out, be careful of spray if tank is full
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
bansil is offline   Reply With Quote
Old 10-15-2015, 10:16 AM   #26
Bus Crazy
 
Join Date: Feb 2012
Location: Salt Lake City Utah
Posts: 1,635
Year: 2000
Chassis: Blue Bird
Engine: ISC 8.3
That's clever, bansil. Good idea.
family wagon is offline   Reply With Quote
Old 10-15-2015, 12:25 PM   #27
Skoolie
 
Join Date: May 2013
Location: Monrovia California
Posts: 151
Year: 1984
Coachwork: Blue Bird
Engine: 3208 turbo Cat
Rated Cap: 78
Quote:
Originally Posted by bansil View Post
okay my advice to add

I got very tired after pumping the stupid priming pump a million times so I-->

My fuel tank cap is solid and not vented, so this told me that I had a vent hose on the tank it's self

Using a tire pump I put the attachment to fill up air mattresses on the end and inserted into the vent hose, I pressurized tank to 8/10 pounds (do not go crazy with it and dont go higher it will do no good except spray everwhere)

I then cracked the lines at the filter and then at each injector and she fired right up

when done unscrew cap to let pressure out, be careful of spray if tank is full
Bansil, did you do this after changing fuel filters? also did you fill the new filter with diesel? .
juliol is offline   Reply With Quote
Old 10-15-2015, 02:22 PM   #28
Bus Geek
 
bansil's Avatar
 
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
yes there are a few pics in my build,

it started with clogged fuel filters and turned into this after accidentally moving a wire

it was a week long craptastic involving a bad fuse, broken wire, extra solinoid and very sore thumbs from everything sitting for a week, all lines drained

http://www.skoolie.net/forums/f11/la...a-7581-33.html

Starts bottom of page 33 and ends on page 35

at least I learned from my adventure
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
bansil is offline   Reply With Quote
Old 10-15-2015, 02:58 PM   #29
Skoolie
 
Join Date: Oct 2015
Posts: 103
Bansil what year motor does LA tortuga have is it the same motor as mine? 97 5.9
Sunbear is offline   Reply With Quote
Old 10-15-2015, 03:10 PM   #30
Bus Geek
 
bansil's Avatar
 
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
it is the basic 5.9 12 valve, it should be the same.
I think ours is 97 also, it used to say under my avatar...mmm
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
bansil is offline   Reply With Quote
Old 10-15-2015, 06:55 PM   #31
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,937
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
Bansil's engine is a 12 valve fully mechanical engine.

Yours in a 24 valve electronic engine.

So no, you and Bansil don't have the same engine.

Always fill fuel filters before installing.

Failure to fill the filter will lead to a ton of work and frustration.

Nat
__________________
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."

Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization
nat_ster is offline   Reply With Quote
Old 10-16-2015, 06:45 AM   #32
Bus Geek
 
bansil's Avatar
 
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
Quote:
Originally Posted by nat_ster View Post
Bansil's engine is a 12 valve fully mechanical engine.

Yours in a 24 valve electronic engine.

So no, you and Bansil don't have the same engine.

Always fill fuel filters before installing.

Failure to fill the filter will lead to a ton of work and frustration.

Nat
How do we know he has a newer 24valve?

Did I miss something?
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
bansil is offline   Reply With Quote
Old 10-16-2015, 12:44 PM   #33
Skoolie
 
Join Date: Oct 2015
Posts: 103
So nat your saying as long as I fill my filters with diesel when I turn the key forward one click it should prime itself and fire up (hopefully)
Sunbear is offline   Reply With Quote
Old 10-16-2015, 02:12 PM   #34
Bus Geek
 
Tango's Avatar
 
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Unless the filter is filled you would be pumping that volume of air through the system. Not good and a PITA to bleed. Even filling it you will get a little air but nothing like what a dry filter would yield.
Tango is offline   Reply With Quote
Old 10-16-2015, 08:04 PM   #35
Skoolie
 
Join Date: Oct 2015
Posts: 103
Nat I'm on e should I get gas and then change the filters or vice versa?
Sunbear is offline   Reply With Quote
Old 10-16-2015, 08:21 PM   #36
Bus Geek
 
Join Date: Aug 2011
Location: Stony Plain Alberta Canada
Posts: 2,937
Year: 1992
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: 190hp 5.9 Cummins
Rated Cap: 72
Quote:
Originally Posted by Sunbear View Post
Hey thanks again all of you I think my bus has the electronic engine you speak if because when I turn the key

Quote:
Originally Posted by Sunbear View Post
Bansil what year motor does LA tortuga have is it the same motor as mine? 97 5.9
Quote:
Originally Posted by bansil View Post
How do we know he has a newer 24valve?

Did I miss something?
Quote:
Originally Posted by Sunbear View Post
Nat I'm on e should I get gas and then change the filters or vice versa?
You could do the oil change a hour after shutting down and it ill still be plenty hot.

Nat
__________________
"Don't argue with stupid people. They will just drag you down to their level, and beat you up with experience."

Patently waiting for the apocalypses to level the playing field in this physiological game of life commonly known as Civilization
nat_ster is offline   Reply With Quote
Old 10-16-2015, 08:47 PM   #37
Bus Crazy
 
Join Date: Feb 2012
Location: Salt Lake City Utah
Posts: 1,635
Year: 2000
Chassis: Blue Bird
Engine: ISC 8.3
If we may agree to disagree on the importance of pre-filling the fuel filter...

It's been a while, but I don't recall pre-filling for my 24-valve ISB engine. Just let the electric lift pump fill it; the air is pushed past the injection pump and returns to the fuel tank.

Can't pre-fill the filter on that Deutz engine I referred to earlier: knucklehead design has its fuel filter inverted above the oil filter (grumble, grumble!). Just changed this one last week; I was actually surprised at how quickly the engine ran again after the filter change with only one of its three injector tubes loosened to bleed the air.


Sunbear, it's not clear whether you have the 12-valve B or the 24-valve ISB engine. Do as nat_ster suggested earlier and look at the valve cover; if it is the 24-valve it'll say so in letters about 1.5 inches tall. Being model year 1997 I'm anticipating it'll be 12-valve.

In the 24-valve case you can pre-fill or not, and can let the electric pump finish the fill. If you can be near the engine and listen carefully when the key is turned on, the pump is quiet but audible. If it runs a while that's great. If it runs just a few seconds or less, try bumping the starter to test whether that makes it run longer. With pre-fill I'd probably look for 20 seconds of lift pump; without pre-fill maybe a minute of pumping before actually trying to start the engine.

In the 12-valve case there isn't an electric lift pump and I agree with the others that pre-filling the filter would make the manual priming easier.

Doesn't matter whether the fuel tank is nearly empty so long as there's enough fuel in there to spill some on the floor, re-fill the filter, and run the engine long enough to get to the fuel station before the tank runs dry!
family wagon is offline   Reply With Quote
Old 10-17-2015, 08:16 AM   #38
Bus Geek
 
bansil's Avatar
 
Join Date: Nov 2011
Location: MNT CITY TN
Posts: 5,158
since there seems to be a cloud over what engine he has

do you have 6 valve covers like 12v


or 1 valve cover like 24v


because "thinking" it's electronic doesnt mean much

that is easiest way
__________________
Our build La Tortuga
Accept the challenges so that you can feel the exhilaration of victory.
George S. Patton
bansil is offline   Reply With Quote
Old 10-17-2015, 09:18 AM   #39
Bus Geek
 
Tango's Avatar
 
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,462
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Roger the above. There is a big difference in the priming and "starting drill" between electric & mechanical lift pumps.
Tango is offline   Reply With Quote
Old 10-17-2015, 09:27 AM   #40
Moderator
 
crazycal's Avatar
 
Join Date: Feb 2007
Location: NUNYA
Posts: 4,236
Year: 1995
Coachwork: Thomas
Chassis: 3800
Engine: DT408, AT545
Rated Cap: 23 500 gvw
Quote:
Originally Posted by bansil View Post
since there seems to be a cloud over what engine he has

do you have 6 valve covers like 12v


or 1 valve cover like 24v


because "thinking" it's electronic doesnt mean much

that is easiest way

I think I would like to have one of those two engines in my Excursion instead of the 7.3.
__________________
I'm hungry!

You Gotta Let Me Fly
crazycal is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 03:15 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.