Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > The Starting Line > Competition Vehicle Build Tech > Extreme Engine Tech
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Closed Thread
 
Thread Tools
Old 04-16-2015, 09:30 AM   #21
jlbayes
 
jlbayes's Avatar

Name: jlbayes
Title: Too Much Time
Status: Not Here
Join Date: Mar 2011
Location: michigan
Member`s Gallery
Posts: 2,399
Quote:
Originally Posted by D&J Precision View Post
As for the coating we have seen that a lot in the diesels that is why we do not push the coatings. That could be where your scoring is coming from too as it flakes off.
just can't take the heat or? curious is all.
__________________
Jacob, 97 rclb
 
Old 04-16-2015, 01:37 PM   #22
EricStaab
 
EricStaab's Avatar

Name: EricStaab
Title: Sponsor
Status: Not Here
Join Date: Sep 2012
Location: WI
Member`s Gallery
Posts: 255
It looks like you have some dirt or the skirts are scuffing. The tops of the pistons look like they are getting too hot, and burning. Which is very possible a fuel issue. And if the pistons are getting to hot, then maybe you do not have enough ptw clearance.
I will agree to with Drew that the flaking of the coating could cause some of that too. It takes good coating or it is not worth doing. I do not even use the crown coatings at all.

4.035 bore is .024/.025 ring gap on a performance engine.
__________________
No Limt MFG,
Manufacturer of diesel performance engine parts: Billet camshafts, rods, valvetrain components, cylinder heads. We take on the hard and unusual jobs no one else is willing to do.
Website: NoLimitMfG
Facebook: Nolimitmfg
Phone:715-384-4422
 
Old 04-16-2015, 03:47 PM   #23
Johnny1
 
Johnny1's Avatar

Name: Johnny1
Title: Too Much Time
Status: Not Here
Join Date: Apr 2014
Member`s Gallery
Posts: 280
Ok thank you, yeah the coating is literally missing in action. I am going to pull her apart and take a look and show you guys some more pictures.
 
Old 04-16-2015, 03:50 PM   #24
Johnny1
 
Johnny1's Avatar

Name: Johnny1
Title: Too Much Time
Status: Not Here
Join Date: Apr 2014
Member`s Gallery
Posts: 280
Quote:
Originally Posted by D&J Precision View Post
Looks like dirt to me. One of them looks like the top ring has lost tension from over heating. As for the coating we have seen that a lot in the diesels that is why we do not push the coatings. That could be where your scoring is coming from too as it flakes off. How is blow by?
BLow by did not see too bad, it was visible but not puffing at all. Also where could all this heat be coming from? i am actually draining the rail currently so i not flowing the big injectors completely at all. vehicles EGts sit around 700-800 while cruising up a small grade or 700 when level. Never seen it go past 1200, also i had the injectors checked 3000 miles ago.
 
Old 04-16-2015, 04:09 PM   #25
Johnny1
 
Johnny1's Avatar

Name: Johnny1
Title: Too Much Time
Status: Not Here
Join Date: Apr 2014
Member`s Gallery
Posts: 280
Quote:
Originally Posted by D&J Precision View Post
Looks like dirt to me. One of them looks like the top ring has lost tension from over heating. As for the coating we have seen that a lot in the diesels that is why we do not push the coatings. That could be where your scoring is coming from too as it flakes off. How is blow by?
BLow by did not see too bad, it was visible but not puffing at all. Also where could all this heat be coming from? i am actually draining the rail currently so i not flowing the big injectors completely at all. vehicles EGts sit around 700-800 while cruising up a small grade or 700 when level. Never seen it go past 1200, also i had the injectors checked 3000 miles ago.
 
Closed Thread

Thread Tools

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

Forum Jump


All times are GMT -5. The time now is 01:56 PM.

 


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2024, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com