New engine build/ Tuning question - Diesel Truck Forum - TheDieselGarage.com
Thread Details Posted by Klutch, this thread has received 2 replies and been viewed 645 times.

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 04-28-2009, 01:35 AM Thread Starter
Member
 
Join Date: Dec 2008
Posts: 179
Points: 27,194
Thanks: 7
Thanked 6 Times in 6 Posts
New engine build/ Tuning question

We put together an engine and reused pistons and checked the bore and honed it out and used new rings. Running stock injectors, gen 3 pump, and DP tune for stock injectors with stock hpop. There seems to be excessive blowby and hard starting. We have done cylinder contribution tests and all other tests with scanner and everything checks out. We are getting a IDM code and a computer code, but I assume that is because of the idm being modified and the computer having the chip on it? The question is do the rings take a bit of time to seat? There is about 150km on the engine with just easy driving. Thanks in advance.
Klutch is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 04-28-2009, 01:58 AM
Senior Member
 
pontiacross's Avatar
 
Join Date: Dec 2008
Location: Mexico, MO
Posts: 2,509
Points: 50,425
Thanks: 145
Thanked 82 Times in 79 Posts
quit babying it.
I haven't had to rebuilt a 7.3 yet but the bigger diesel's that I over haul. as soon a I have it running good enough I take off down the road with it. and dont let it sit there and idle for very long!!!!
the rings need some heat and pressure to seat. I dont recomend abuseing it right off the bat but drive it like you normally would.

Ross
Show-ME Smokers 2.6 modified street pulling truck "The Lone Stroke" My Videos
1996 f350, powerstroke, 4x4, 5-speed, 4.56 gears, Swamps 450/600 injectors, Swamps BFH turbo, Swamps Idm, Swamps tunes, BTS oil, SBC clutch, studs, springs, tubes, air to water intercooler, fuel system, factory rods!


Tow Rig
1997 f350, srw, reg cab, 4x4, 5 speed, 4.10 gears, 3in down pipe, straight pipe, mystery chip.

Becker Brothers Enterprises
pontiacross is offline  
post #3 of 3 (permalink) Old 05-01-2009, 10:52 PM
Member
 
Join Date: Oct 2007
Location: Colorado
Posts: 91
Points: 232
Thanks: 0
Thanked 7 Times in 7 Posts
Ditto, don't baby it. Get on it and make some boost to seat the rings and then let off. What you are trying to do is seat the rings and when you back off it allows the oil to coat the cylinder walls again. If this dosen't cure your blow by you may have some ring gaps lined up.

95 F350 crew, 6.0 intercooler, GTP38R, 4" downpipe w/5" exhaust straight pipe, 250cc injectors, DP Tuner w/Live tune, A1000 fuel pump, Terminator Dual HPOP, A1-H11 head studs, rewired the EBV for exhaust brake, 6" lift, rear shackle flip with air bags and traction bars, 35" Cooper STT's, ZF6 spd and South Bend dual disk clutch.
KSEnt is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Truck Forum - TheDieselGarage.com 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










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



Similar Threads
Thread Thread Starter Forum Replies Last Post
engine build help Bone stock 99 5.9L Cummins 12 Valve (1994-1998.5) 8 01-29-2009 05:35 AM
build a new engine or buy a new one? Stroker-Smoker! 5.9L Cummins (2003-2007.5) 15 03-31-2008 09:16 PM
Tuning question HeffPsDiesel 1994-2003 7.3L Chips & Tuners Forum 10 02-18-2008 11:07 PM
engine build date location? caddy-cat 2003-2007 6.0L Power Stroke 0 03-15-2007 12:33 PM
How To Build A High Performance Cummins Diesel Engine MOMBENZ Dodge - Modification instructions, Product installs and Tech Articles 1 10-17-2005 07:13 PM

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 On
Pingbacks are On
Refbacks are On

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