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 > Tractor Performance > General Tractor Performance > Others
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Others Any other not listed

Closed Thread
 
Thread Tools
Old 02-12-2020, 09:00 AM   #1
ikeG
 
ikeG's Avatar

Name: ikeG
Title: Oughta Know Better
Status: Not Here
Join Date: Apr 2011
Member`s Gallery
Posts: 721
Komatsu D39 dozer = 4BT??

We have a 15-20 year old Komatsu D39 dozer that lists its engine as a model SAA4D102-E, 3.9L, 240 CI, 95hp. I'm under the assumption that it's a 4bt that komatsu paints and calls their own, similar to other manufacturers of equipment. Is that correct?

The main reason I'm posting is to ask about oil consumption. It has between 5 and 6000 hours on it, but runs like a top. Starts easily, even in cold weather. It burns oil at approximately 1.5 qt an hour when used moderately hard. Always has a haze and smells like it too. No adverse conditions other than oil consumption.
One other important detail, it was in a flood just before we bought it. I had to replace the turbo, which appeared original. I'm assuming it needs liners, pistons and rings. But is there something that I should be checking on first?
__________________
Isaac Griffith
'Oughta Know Better' LPS Puller
https://m.facebook.com/OKBPulling/
 
Old 02-12-2020, 09:12 AM   #2
Mudn_1
 
Mudn_1's Avatar

Name: Mudn_1
Title: Sweet Home
Status: Not Here
Join Date: Apr 2007
Location: Trussville
Member`s Gallery
Posts: 5,290
Turbo
__________________
"One Up'N The Competition"
 
Old 02-12-2020, 10:53 AM   #3
ikeG
 
ikeG's Avatar

Name: ikeG
Title: Oughta Know Better
Status: Not Here
Join Date: Apr 2011
Member`s Gallery
Posts: 721
Quote:
Originally Posted by Mudn_1 View Post
Turbo
I suppose I'm only assuming its not the turbo. Really did not put a bunch of hours on it prior to it failing.
__________________
Isaac Griffith
'Oughta Know Better' LPS Puller
https://m.facebook.com/OKBPulling/
 
Old 02-12-2020, 10:58 AM   #4
Mudn_1
 
Mudn_1's Avatar

Name: Mudn_1
Title: Sweet Home
Status: Not Here
Join Date: Apr 2007
Location: Trussville
Member`s Gallery
Posts: 5,290
Quote:
Originally Posted by ikeG View Post
I suppose I'm only assuming its not the turbo. Really did not put a bunch of hours on it prior to it failing.
hows blow-by? Any Crankcase pressure retrictions? Air Filter? That is about it except for a Head/ Ring Issue
__________________
"One Up'N The Competition"
 
Old 02-12-2020, 11:18 AM   #5
ikeG
 
ikeG's Avatar

Name: ikeG
Title: Oughta Know Better
Status: Not Here
Join Date: Apr 2011
Member`s Gallery
Posts: 721
That's the other thing, no blow by. If it had blow by, wouldn't hardly start, etc I wouldn't even ask.

Sent from my SM-G960U using Tapatalk
__________________
Isaac Griffith
'Oughta Know Better' LPS Puller
https://m.facebook.com/OKBPulling/
 
Old 02-12-2020, 11:52 AM   #6
99GreenCummins
 
99GreenCummins's Avatar

Name: 99GreenCummins
Title: That guy....
Status: Not Here
Join Date: Feb 2011
Location: Marietta, Ohio
Member`s Gallery
Posts: 2,387
At my last job, we had one of those, or very similar. The komatsu engine looked very very similar to a 4bt but wasn't even rebranded 4bt. All made by komatsu. There were about 3-4 engine options but naturally, the one we had was the "rare" one in the US and hard to get parts for. Had almost a 10 week wait on parts to rebuild. Long block was like a 6-8 week wait.

The one we had broke rings if I remember right and wouldn't hardly pull itself into shop. During rebuild we rebuilt the head and found quite a few damaged valve seals. Just something to think about.
__________________
Todd
Some farm trucks
2014 Ram 3500 19.5s, aisin
1999 Ram 2500,6 spd, typical mods
 
Old 02-12-2020, 11:53 AM   #7
bracker8040

Name: bracker8040
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Member`s Gallery
Posts: 818
Valve stem seals.
 
Old 02-13-2020, 04:47 AM   #8
ikeG
 
ikeG's Avatar

Name: ikeG
Title: Oughta Know Better
Status: Not Here
Join Date: Apr 2011
Member`s Gallery
Posts: 721
Ok. Thanks.
__________________
Isaac Griffith
'Oughta Know Better' LPS Puller
https://m.facebook.com/OKBPulling/
 
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 11:23 AM.

 


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