Reply
 
Thread Tools Display Modes
 
Old 05-09-2017, 12:35 AM   #51
Bus Geek
 
Robin97396's Avatar
 
Join Date: Feb 2016
Location: Willamina, Oregon
Posts: 6,109
Coachwork: 97 Bluebird TC1000 5.9
Yeah, that's the kind of learning that makes my head hurt.

What do you think is keeping you from getting your bus started? Fuel filter change or possibly an interlock issue?
__________________
Robin
Nobody's Business
Robin97396 is online now   Reply With Quote
Old 05-09-2017, 06:06 AM   #52
Bus Nut
 
joeblack5's Avatar
 
Join Date: Dec 2015
Location: pa
Posts: 669
Year: 98
Coachwork: 1. Corbeil & 2. Thomas
Chassis: 1 ford e350 2 mercedes
Engine: 7.3 powerstroke & MBE906
Looks great so far, why do you think the starter is bad.

When you put it on contact check if the glow plug light comes on.
Listen to the glow plug relay, You can here it click very clear.

Depending on year the 7.3 have a mechanical or electrical fuel pump.

When was the last time it ran? what did you do in the mean time to the engine?

Good luck J
joeblack5 is offline   Reply With Quote
Old 05-09-2017, 06:29 AM   #53
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 8,553
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Tell me more, I didnt realize you had a no start, I thought your air box was just jacked? So I'm understanding you get no crank or spin and no start?
I'd only pull the starter if you get no spin or very slow spin and no start.
Are you getting fuel? Are your glowplugs working?
Did you do anything with the oil where you might have run the HPOP reservoirs dry? Ie changes oil and didn't fill filters before replacement?
This thing was running till you turned it off to convert it, correct?
Christopher
cadillackid is offline   Reply With Quote
Old 05-09-2017, 09:09 AM   #54
Bus Nut
 
Join Date: Oct 2015
Posts: 297
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
Well I didn't realize we had a no start either.

We've had rough starting since we bought it, typically only when it sits for any length of time. When it was being driven regularly, it started fine.

The batteries were the assumed culprit. They tested fine sometimes and bad others (tested on pro equipment). But they were the ones bought with the bus, and went through being hooked up backwards. During the fall and early winter, the bus started when the batteries got help from a second vehicle further leading me to assume batteries. Yes, the bus has worked and been driven since the reversed terminal ordeal.

The starter spins and you can hear everything trying to get it started. It just seems like it isn't going fast/hard enough to start. I don't know how to listen for glow plugs. A light comes on that says wait to start for about 10 seconds and then goes off though.

Oil was changed by me. What filters needed filled? I prefilled the actual oil filter it that's what you mean.

I do not think that it's a fuel problem. It has a clean filter and from the beginning has always showed signs of getting fuel. It will smoke while trying to start and the smoke stops as soon as it's actually running. I'm also pretty sure you can hear the pump running when the key is turned on (before trying to start)? I hear something run and I always wait for it to finish.

Several months since last start at this point.
__________________
Our build thread
PigPen is offline   Reply With Quote
Old 05-09-2017, 10:01 AM   #55
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 8,553
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
almost acts like you have glowplugs that arent working or the glowplug relay.. the glowplug relay is a huge culprit in these 7.3's, it looks like a starter solenoid on top of the engine.. on my navistar its a little bit back and to the right of the fuel filter..

yeah you fileld the oil filter before installing, and since you have smoke you likely have fuel.. its possible the fuel drains back in the tank and the fuel pump has to push it back up.. you can place a gauge on the fuel pressure test port and see what kind of fuel pressure you have while cranking.. it may be you have fuel but not enough..

though hard starts are often glow plug related.
-Christopher
cadillackid is offline   Reply With Quote
Old 05-09-2017, 10:25 AM   #56
Bus Nut
 
Join Date: Oct 2015
Posts: 297
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
Is there a way to test the glowplugs / glowplug relay?
__________________
Our build thread
PigPen is offline   Reply With Quote
Old 05-09-2017, 11:07 AM   #57
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 8,553
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Quote:
Originally Posted by PigPen View Post
Is there a way to test the glowplugs / glowplug relay?
if you can get to the relay.. it looks like a starter solenoid, should have 2 large wires going to it.. one is the input from the +12 volts, the other large terminal is the output and provides power to the glowplugs..

the first test is key on, and while thew wait-start light is on if you test with a meter or test light .. one lead on ground, and the red lead to the each termonal, you should have power at both terminals.. (dont test across them, from each one to ground) I cant remember which is in and out, on that id have to hop under the hood of my bus to see..

if you only ever have power at one of those large terminals then the relay is never engaging the glowplugs. if you dont have power at either terminal, then the power feed going to the relay is bad..

im sure on a van that will be in the hard to reach area near the firewall..

here is a pic i found online of where to find it..

[IMG]
https://i.ytimg.com/vi/j-sqAJ_Kh50/maxresdefault.jpg
[/IMG]
cadillackid is offline   Reply With Quote
Old 05-09-2017, 12:15 PM   #58
Bus Nut
 
Join Date: Oct 2015
Posts: 297
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
Thank you for the picture and explanation.

I think I may have an easier time getting in there since the resonator box is out. I'm taking a break from work for the rest of the afternoon to go work on it.

When you say the glow plug terminals, what exactly do you mean? Excuse my ignorance.
__________________
Our build thread
PigPen is offline   Reply With Quote
Old 05-09-2017, 01:24 PM   #59
Bus Nut
 
Join Date: Oct 2015
Posts: 297
Year: 2003
Chassis: E-450
Engine: 7.3 Turbo
I read on a different forum to watch the battery meter to pop back up to full voltage to know when the glow plugs are done, which is well after the wait to start light goes out. I did this, and it took about 45 secs to a minute.

No start.

I tried about 7-8 times. It seemed very close on some, others it seemed like there was barely anything.

New symptom found which may or may not be related:

White smoke coming from turbo (I believe up pipe?)

Here is the whole thing:



Here is the guilty area:



Can you tell anything from this info and pics? I don't know much about turbos yet, so I won't even share my guesses lol

Also, towards the end of starting attempts, exhaust smoke turned black. It's usually white and thin at startup.
__________________
Our build thread
PigPen is offline   Reply With Quote
Old 05-09-2017, 02:19 PM   #60
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 8,553
Year: 1991
Coachwork: Carpenter
Chassis: International S3800
Engine: DT360
Rated Cap: 7 Row Handicap
Is your check engine light on? Might b time to se if any codes are present. Black smoke is usually overfueling, white smoke is common when trying to cold start, I'm interested in codes to see if it is failing on a crank position sensor or such that would mess the fuel timing up. Or if you are getting ICP / IPR related codes .. those control the high pressure oil which regulates how much fuel is going in. And of course checking fuel pressure, it seems like you have fuel but checking fuel pressure at the test valve is always the real deal. How old is yourxfuel? It sounds like this has been an issue for awhile so I'm guessing you have refueled recently.
Christopher
cadillackid 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


» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:49 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.