Headgaskets Maybe? - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 2 Old 09-09-2013, 03:32 PM Thread Starter
Join Date: May 2009
Posts: 67
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Headgaskets Maybe?

My truck has a Black Water long block with studs and about 20,000 miles on it. Last week I changed the oil cooler (Again) and refilled all the fluids and every thing seemed good. This past weekend I was on my way to tow a truck for a friend, just had a empty trailer on back ( 2,500 lbs. and using tow tune) and I noticed a small trickle of coolant coming out of my degas cap. I bought a new cap, put the truck to stock and hauled a 6,00lb truck for 400 miles and no more leaks.

Here is where I have questions, not convinced that it was just a bad cap I did a bubble test tonight. The truck was cold when I started the test, there were no bubbles at first but after about a minute I had some steady bubbles. When I put the truck in gear, held the brake and built some boost the bubbles stopped when I let off they started again.

Is it possible that the bubbles that I am seeing are from the temperature of the coolant rising?

If I do a pressure test of the cooling system what pressure should I test it to? 16 psi?


2012 F450 KR 4'' rear blocks
Gone 2005 F350 King Ranch, EGR delete, ARP studs, Dually conversion,Firestone Air bags
webefine is offline  
Sponsored Links
post #2 of 2 Old 09-09-2013, 05:12 PM
Compression Ignition Addict
Join Date: Dec 2008
Location: port arthur texas
Posts: 4,222
Thanks: 1
Thanked 66 Times in 62 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Since the cap vents at 16psi not much point in going much more than that

Lord I shall lead them to the water but I will not try to make them drink
dannyboy950 is offline  
Sponsored Links

Quick Reply

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


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

Email Address:


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