burning oil or not

Reply Subscribe

Thread Tools

Search this Thread

Feb 11, 2013 | 03:03 PM

gmcyukon

Thread Starter

On The Tree

iTrader: (9)

Joined: Sep 2011

Posts: 183

Likes: 0

From: Shreveport la

burning oil or not

bought this engine pretty cheap and took it apart. to built it. my dad thinks its burning oil so i have pics for you guys its a 5.3

cleaned piston 1 but it looked the same as others

Feb 11, 2013 | 03:54 PM

gMAG

TECH Junkie

iTrader: (1)

Joined: Mar 2003

Posts: 3,033

Likes: 4

From: CT

Could be oil and/or overly rich mixture.
Did you do a compression test beforehand? That might give you a clue.
In the first picture, the lower coolant ports are completely blocked, compared to the upper ports. Did you clean/open the upper ports?

Feb 11, 2013 | 03:57 PM

gmcyukon

Thread Starter

On The Tree

iTrader: (9)

Joined: Sep 2011

Posts: 183

Likes: 0

From: Shreveport la

Didn't do a compression check and and i did clean it afterwards

Feb 11, 2013 | 03:59 PM

gmcyukon

Thread Starter

On The Tree

iTrader: (9)

Joined: Sep 2011

Posts: 183

Likes: 0

From: Shreveport la

Also the Lower pics are the right side (1.3.5.7)

Feb 11, 2013 | 04:17 PM

3rdCoastPowerSports

TECH Fanatic

iTrader: (5)

Joined: Jun 2011

Posts: 1,154

Likes: 6

From: Loony Bin

what are you wanting to do with this thing? are you looking to rebuild the bottom end? It definitely had something going into the combustion chambers. I agree with Gmag, it could be oil could be fuel.

Feb 11, 2013 | 04:38 PM

gmcyukon

Thread Starter

On The Tree

iTrader: (9)

Joined: Sep 2011

Posts: 183

Likes: 0

From: Shreveport la

Yea I going to rebuild the bottom end

Feb 11, 2013 | 05:12 PM

GMtechmatt

Launching!

Joined: Jan 2012

Posts: 231

Likes: 0

From: CT

id say it is . what year 5.3 is it? some with active fuel managment when the AFM goes they will consume oil. or if the oil diverter isnt installed over the oil squirter it will consume. also locked up rings will consume