Change in sound of idle on purge - Ford Powerstroke Diesel Forum
Bio-Diesel/Alternative Fuels and Supplements Bio-Diesel and related Discussion. Ask Questions and discuss what has worked for you here.

 
LinkBack Thread Tools Display Modes
post #1 of 7 Old 06-06-2013, 10:38 PM Thread Starter
Member
 
Join Date: Apr 2013
Location: teton valley, idaho
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Change in sound of idle on purge

Back again, I have noticed that when purging with my momentary ( have to manually hold down) switch there is a change in the sound of my engine. If I turn off engine and turn on electrical I can hear my valve switching fine so i dont think its related to the funtion of the vavle. Is this sound normal? Just noticed it tonight as I am playin with idling off veg rather than driving to experiment with clays practice of cooling turbo while burning off veg. It kind of sounds like my wench when it's paying out. Thanks for all the advise so far, it's helpin a ton!
mmmkay is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 06-07-2013, 07:12 PM
Compression Ignition Addict
 
Join Date: Oct 2006
Posts: 1,364
Thanks: 0
Thanked 4 Times in 4 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Do you have a way to measure your fuel pressure while the purge valve is open?

What engine, year, etc is the truck? I.e OBS, PSD, IDI, etc..

What kind of D2 pump do you have?

99 F350 7.3
320K w/ 150k+ on Biofuels

Casserly Stage 2's-TE Modded 17 HPOP
DP Tuner F6 & PMT1-Van Turbo Non EBPV & 6637
Twin Fass Pumps B100 & D2 Regulated Return- Fuel Lab
Isspro Pyro, Trans, Boost-Air and Fuel Temp
WVO processed by Simple Centrifuge
B100 by Biopro 190
B100 powered Excursion, F250 CCSB, and Two TDI Jettas
vegginpsd is offline  
post #3 of 7 Old 06-07-2013, 10:49 PM Thread Starter
Member
 
Join Date: Apr 2013
Location: teton valley, idaho
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I don't have a way to gauge pressure when valve is open. Truck is an 02 f350 with a stock lift pump. I am using wvo designs valve which is hard lined in after filtration (in supply) with check valve between the two. I only have about a week on this system (60'ish miles a day) and just heard this sound last night. Most of my purging has been while driving so I may/may not be new sound. I had a system on this truck prior with a looped return and never heard this sound while purging in the 86k that I put on it. Also have a grease car system on a 03 tdi and have never experienced a purge cycle effecting sound of motor/idle. I was thinking today that I may have held purge too long and pulled fuel away from injection potentially starving injectors? Not sure if that is possible as I have read that there is about a quart of fuel that baths in the rails to supply injectors. Not sure about that either. Is there enough draw electrically when powering the valve to make this happen? I would think that a 12 volt transfer pump would draw more and I've never noticed that sound when using one.
The purge valve is located clear back in the bed at the tank. Would extra distance factor in? Anyway, thanks for replying. I am confused as to what it would be and may need a basic explanation of a dead head system ( like the one on my truck) to help me understand. Thanks!
mmmkay is offline  
post #4 of 7 Old 06-08-2013, 09:59 AM
Compression Ignition Addict
 
simone0414's Avatar
 
Join Date: Aug 2009
Location: Nova Scotia
Posts: 741
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
It only does this when purging? The only difference in sound I hear when purging is the engine gets a bit quieter from the loss of fuel pressure.

One thing I did & many others that have DIY's did as well Is install a manual ball valve on the purge line just before the purge valve. This serves 2 purposes. If your purge valve ever sticks open I can shut the manual valve & still drive. If you don't have this & your purge valve sticks open you are dead in the water. The other reason for the manual valve is so you can close it some to restrict the flow so you don't lose all your fuel pressure when you purge. So you may just be dropping your pressure too much when you purge & your injectors don't like it.

You really should have a pressure gauge.

If you want to understand the deadhead system there is a sticky at the top of the page.

2001 f-350 ext.cab. 7.3 auto non dually. 262k miles. New HD tranny at 67,000 miles. Boost, EGT, Tranny temp gauges. 04/10 DIY check valve VO conversion. 20 plate FPHE,Fass HPFP set at 70 PSI,TIH, 10 micron spin on filter with coolant wrap, 150 micron prefilter, hrydraforce purge valve, 40 gallon greasecar tank with hotfox, SS braided hose to heads, Oil temp, pressure & fuel level gauges. 110K miles on grease.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Monitoring with Torque.
simone0414 is offline  
post #5 of 7 Old 06-08-2013, 09:30 PM Thread Starter
Member
 
Join Date: Apr 2013
Location: teton valley, idaho
Posts: 37
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
That must be what it is. Yes I only hear the sound when purging and now that you describe it as getting quieter that what the change in sound is, quieter. So that is just do to reducing fuel pressure during purge? That's a load off my mind. For some reason ( probably because of the DIY factor)!i keep expecting the entire thing to detonate, ill get over it.
I do have the sender for a pressure gauge plumbed in, just kinda burned out after install and haven't finished , plus didn't hang with my kids for a whole wknd and promised them some fun this wknd. Can't seem to get around to finishing up during work week. The ball valve is a great idea, thanks for passing that on! I'll have fuel pressure, water temp and egt gauges in a pod when I am finally done. Im hoping water temp gauge will allow me to switch earlier than I have been for years just going by stock engine temp. I have been using a 203* t-stat for last 3 years and have always wondered if I could be switching over earlier than I do.
I'd love to read the dead head info you referenced but I can't seem to find the sticky you referred to. Sorry, I'm a rookie here but I sure am appreciating all the help, thanks!
mmmkay is offline  
post #6 of 7 Old 06-21-2013, 06:43 AM
Compression Ignition Addict
 
tubular031's Avatar
 
Join Date: Sep 2007
Location: WAY north Texas
Posts: 2,409
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by simone0414 View Post

One thing I did & many others that have DIY's did as well Is install a manual ball valve on the purge line just before the purge valve. This serves 2 purposes. If your purge valve ever sticks open I can shut the manual valve & still drive. If you don't have this & your purge valve sticks open you are dead in the water. The other reason for the manual valve is so you can close it some to restrict the flow so you don't lose all your fuel pressure when you purge. So you may just be dropping your pressure too much when you purge & your injectors don't like it.
Since I joined the DIY VO game I have suggested this to everyone. I even put up a thread about it years ago. My valve has saved me when my purge valve failed. I also suggest to everyone that they put a second valve at the end of the VO fuel side ( closer to the heads the better) to cut off the VO side incase of a failure. That valve has saved me 2 or 3 times from being dead on the road. I am all about redundancy anywhere I can put it!!

Just a basic 01 F350 CCLB SRW -Good from a far but far from good
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
tubular031 is offline  
post #7 of 7 Old 06-23-2013, 06:07 AM
Compression Ignition Addict
 
simone0414's Avatar
 
Join Date: Aug 2009
Location: Nova Scotia
Posts: 741
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by tubular031 View Post
Since I joined the DIY VO game I have suggested this to everyone. I even put up a thread about it years ago. My valve has saved me when my purge valve failed. I also suggest to everyone that they put a second valve at the end of the VO fuel side ( closer to the heads the better) to cut off the VO side incase of a failure. That valve has saved me 2 or 3 times from being dead on the road. I am all about redundancy anywhere I can put it!!
Actually I got this idea from you. I have 3 shut offs in total for the VO. One just before the tee to the heads, one on the purge & one on the line from the tank to the pump. Also have shutoffs on the coolant feed & return. They have all been necessary at one point.

2001 f-350 ext.cab. 7.3 auto non dually. 262k miles. New HD tranny at 67,000 miles. Boost, EGT, Tranny temp gauges. 04/10 DIY check valve VO conversion. 20 plate FPHE,Fass HPFP set at 70 PSI,TIH, 10 micron spin on filter with coolant wrap, 150 micron prefilter, hrydraforce purge valve, 40 gallon greasecar tank with hotfox, SS braided hose to heads, Oil temp, pressure & fuel level gauges. 110K miles on grease.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Monitoring with Torque.
simone0414 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome