Go Back  Offshoreonly.com > Technical > General Q & A
EFI V8 Problems idlle , power, and smoke >

EFI V8 Problems idlle , power, and smoke

Notices

EFI V8 Problems idlle , power, and smoke

Thread Tools
 
Old 04-24-2024 | 05:51 AM
  #11  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

Originally Posted by underpsi68
A cylinder head or head gasket will not be intermittent.
Yes but thé problème , i have a smoking and oil consumption.
Nordo is offline  
Reply
Old 04-24-2024 | 09:46 AM
  #12  
SB
Registered
20 Year Member
 
Joined: Nov 2004
Posts: 14,100
Likes: 3,687
From: On A Dirt Floor
Default

Smoke - what color ? Does it do it all the time or inly when running crappy ?
Oil consumption - how much per hr ?

What’s your fuel psi when it runs like crap ? Does it run this way at any rpm/ load ?
SB is offline  
Reply
Old 04-24-2024 | 10:53 AM
  #13  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

I'm going to make a video, it will be more demonstrative. The smoke is odorous and very gray/white. with a sort of oil stain in the water.

for the oil consumption, sometimes it reaches 1L for 2 hours of use I can't determine because now the problem seems permanent..

For the fuel pressure, I don't know. I will do the test with the necessary equipment this week. when it malfunctions, it runs at 400 rpm AT idle. and max ton réduction power +- 2000 rpm thank you for your answer.

On the other hand, it never stalls, and always starts very well. (Too quickly compared to the other I have the impression)

Last edited by Nordo; 04-24-2024 at 10:57 AM.
Nordo is offline  
Reply
Old 04-24-2024 | 07:01 PM
  #14  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

I upload a vidéo for a color Smoke thank's
Nordo is offline  
Reply
Old 04-24-2024 | 07:03 PM
  #15  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

Harg a last message for permission (10 messages)
Nordo is offline  
Reply
Old 04-24-2024 | 07:04 PM
  #16  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

Here IS a vidéo

Nordo is offline  
Reply
Old 04-24-2024 | 08:21 PM
  #17  
Registered
20 Year Member
 
Joined: Jan 2006
Posts: 3,598
Likes: 1,168
From: taxachusetts
Default

Originally Posted by underpsi68
A cylinder head or head gasket will not be intermittent.
oil consumption maybe either bad valve guides/seals or intake manifold gaskets.
sutphen 30 is offline  
Reply
Old 04-24-2024 | 08:54 PM
  #18  
Thread Starter
Registered
 
Joined: Apr 2024
Posts: 12
Likes: 0
Default

.
.
So it would be better after the leak test.
Besides, I am looking for advice on the test procedure)

Open the block and remove the cylinder head in order to check the condition of the intake gaskets, the condition of the cylinder head as well as, see the condition of the valves/seats. and valve guide seals.

An opening is obligatory. I have the impression.

I made a quote for the restoration of the 2 cylinder heads,
​​​​​​​The price for the 2 cylinder heads is between €850 and €1000 depending on the workshop
For: disassembling / reassembling the cylinder head + testing / surfacing / changing the valve stem seal / reaming of the valve seats, and lapping.
so of course no big problems. (Like crack or metal gnawing/corroding)


Hoping it's not low engine.
Piston ring
Nordo is offline  
Reply

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



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.