352 engine smoking

Reply Subscribe

Thread Tools

Search this Thread

Apr 3, 2010 | 06:09 AM

jeffsang

Thread Starter

New User

Joined: Nov 2006

Posts: 18

Likes: 0

352 engine smoking

I have a 65 Ranger shortbed, 352 motor, has dual exhaust, right bank smokes constantly about a minute or two after start up and doesn't stop, driving or idiling. PCV has strong suction. I'm thinking rings or valve seals or possibly plugged oil return holes, I will do a compression test today for grins just to see where I stand there. Any help or suggestions would be appreciated. I need to figure out how to upload pics on this fourm so I can share, truck is very nice.

Apr 3, 2010 | 07:20 AM

jowilker

Fleet Owner

Joined: Jun 1999

Posts: 24,552

Likes: 74

From: Creedmoor, North Carolina

If you go through your CP and load photos in your album/gallery, they wont be limited to a thread and can be seen by anyone at anytime by clicking your username.

Click mine, you'll see.

John

Apr 3, 2010 | 12:34 PM

tbm3fan

Cargo Master

Joined: Jul 2006

Posts: 3,014

Likes: 91

From: Concord, CA

You can do a dry and wet compression check. You can also pull the valve cover to look at the troublesome rear drain back hole for oil and poke around in it.

Apr 3, 2010 | 07:46 PM

jeffsang

Thread Starter

New User

Joined: Nov 2006

Posts: 18

Likes: 0

I did a compression test, not wet though, 150psi on all cylinders on left side, 115-135 on right side, no oily deposits on plugs, little carbon on the weak ones. will redo compression test and try it wet and see if the pressure comes up at all

Last edited by jeffsang; Apr 3, 2010 at 07:47 PM. Reason: forgot the end part

Apr 6, 2010 | 08:20 PM

Big Daddy T

Senior User

Joined: Aug 2009

Posts: 176

Likes: 0

From: Bolivar, MO>

time to take it apart and see what happened. check the valve seats though many of these old engines hav e never had hardened valve seats installed and therefore dont seat well after running unleaded gas in them. mine looked like swiss cheese! cylinder scoring or rings could have a problem. if you rebuild this engine look into the oil system modifications they are relatively simple and are a great help to an fe engine as they are not made for over 5400 rpm stock. just my two cents. good luck!