home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 05-21-2018, 05:36 PM   #1
cmarquise
Board Member
 
Join Date: Feb 2018
Location: Fairfax, VA
Default Clearing a flooded motor

My engine (1982 B21f kjet) was running really rich for a couple of weeks due to a few vacuum leaks from when I took apart some components. The engine flooded a few times and I've fouled a couple of sets of plugs. I think I have everything sealed up now, Is there a procedure for clearing a flooded motor that works for these cars? I hope the next set of plus I buy are my last.
cmarquise is offline   Reply With Quote
Old 05-21-2018, 05:46 PM   #2
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Take plugs out and crank it. Smart to disable to spark so no boom boom. Remember you can’t really compress a liquid so cranking with plug in on a severely flooded motor can bend rods. Unlikely but possible.
__________________
Feedback Thread
Current:
93' 244 m47
93' 245 m47
90' 744 AW70
94' M-Edition Miata
95' Camry auto
Past:
80' 242gt m46
88' 245 m47
92' 940 turbo AW17


If you stop and think about it, it’s literally not worth your time to get on TBOT every day and argue about politics.
PromiseRing is offline   Reply With Quote
Old 05-21-2018, 05:46 PM   #3
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

manually trigger the starter and floor it. Or disable the fuel system and crank the starter with the key while flooring it. Pulling the plugs will only help on either method.
__________________
No Start Thread
ZVOLV is offline   Reply With Quote
Old 05-21-2018, 06:08 PM   #4
dbarton
Bored Member
 
dbarton's Avatar
 
Join Date: Nov 2002
Location: North of Dallas
Default

If you think it was flooded by a lot, leave the oil fill open a while to help let fuel evap out of the sump. Check dipstick and smell for fuel.
Dave B.
__________________


'84 242ti, owned since 2003. Always garaged since brand new. Old-school rounds because they look great. B21FT, iPd Springs/Sways, SDS EFI/IGN, TD04HL-15G, T5Z trans, Cooling Mist water/ethanol injection.
Volvo seeks Divorce from Volvo Enthusiast Community: www.prancingmoose.com/#novolvo
Dave's Volvo Page: www.davebarton.com
dbarton is offline   Reply With Quote
Old 05-21-2018, 06:09 PM   #5
cmarquise
Board Member
 
Join Date: Feb 2018
Location: Fairfax, VA
Default

so the last time I tried to do it I pulled the fuses for the main and in-tank pump and cranked the engine, but did not touch the accelerator. So if I leave the plugs in, pull both pump fuses, crank the engine and floor it will that work? Do I have to do it for a set amount of time. I don't want to kill my starter, but I want to make sure it's clear.
cmarquise is offline   Reply With Quote
Old 05-21-2018, 06:35 PM   #6
cmarquise
Board Member
 
Join Date: Feb 2018
Location: Fairfax, VA
Default

Dbarton! I just installed your wiring harnesses into my car as a part of this project. Excellent product, by the way.
cmarquise is offline   Reply With Quote
Old 05-21-2018, 07:08 PM   #7
ZVOLV
<Master Tech>
 
ZVOLV's Avatar
 
Join Date: Nov 2002
Location: California
Default

Clear flood on modern cars you floor the gas pedal and press the bake pedal and crank and it disables fuel and clears it out.

Change your oil once you get it running.
ZVOLV is offline   Reply With Quote
Old 05-21-2018, 08:07 PM   #8
TestPoint
Board Member
 
TestPoint's Avatar
 
Join Date: Jul 2009
Location: Ellijay
Default

Clear flooding on our 30 year old cars is to remove the plugs, verify that injectors are not leaking or actually spraying fuel and spin the starter for a lot of time. Then check the crank case oil to see if it smells of gasoline.

I had a stuck K-jet fuel distributor that pumped the engine full to hydro lock. Maybe that should be a petro lock.
__________________


1982 Volvo 245 with a Ford 302 V8

Ford V8 Conversion Manual -
http://forums.turbobricks.com/showthread.php?t=250257

Bertone Restoration - http://forums.turbobricks.com/showthread.php?t=256460

Last edited by TestPoint; 05-22-2018 at 04:49 PM..
TestPoint is offline   Reply With Quote
Old 05-21-2018, 08:10 PM   #9
cmarquise
Board Member
 
Join Date: Feb 2018
Location: Fairfax, VA
Default

I've seen the flooring it method in some videos, but didn't think that would work on my 82 kjet. I think I'm going to follow a combination of all of the advice. Oil definitely has some fuel odor so I'm going to open the oil fill and try to let some evaporate. Then I will pull the fuses on the fuel pumps, crank the starter and floor it several times to try to clear the engine. Then I'm going to change the plugs and oil and hopefully be good to go. Thanks everyone.
cmarquise is offline   Reply With Quote
Old 05-21-2018, 08:13 PM   #10
cmarquise
Board Member
 
Join Date: Feb 2018
Location: Fairfax, VA
Default

Ok, just saw that last post (i already checked injectors to make sure they weren't leaking and the plate is moving correctly), so my approach is going to be to pull the plugs, crank the motor and then I will change oil and plugs and hope I'm good to go.
cmarquise is offline   Reply With Quote
Old 05-21-2018, 09:15 PM   #11
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Idk why people mention clear flood mode like it actually exists on our 240s. It does NOT. Pull all 4 plugs, disable fuel and spark, crank for 10 seconds, reinstall plugs, enable fuel and spark, start car and abort tbricks thread.
PromiseRing is offline   Reply With Quote
Old 05-21-2018, 10:34 PM   #12
VB242
Mojo Stealer
 
VB242's Avatar
 
Join Date: Sep 2011
Location: Virginia Beach
Default

If you're brave



You should probably change the oil, it doesn't take much gas to ruin it.
__________________
1980 primer JDM flares franken-242DL, 1989 silver 780 sienna rear spring nivomat delete

Last edited by VB242; 05-21-2018 at 10:42 PM..
VB242 is offline   Reply With Quote
Old 05-22-2018, 07:50 AM   #13
photoman327
Board Member
 
photoman327's Avatar
 
Join Date: Apr 2009
Location: North Alabama
Default

Quote:
Originally Posted by dbarton View Post
If you think it was flooded by a lot, leave the oil fill open a while to help let fuel evap out of the sump. Check dipstick and smell for fuel.
Dave B.
thanks! have not been on you site in a while. MY first thought was Volvo has lost their freaking mind and I waited to late. at the time I did not have a car worth of Barton badging.
photoman327 is offline   Reply With Quote
Old 05-22-2018, 11:07 AM   #14
dbarton
Bored Member
 
dbarton's Avatar
 
Join Date: Nov 2002
Location: North of Dallas
Default

Quote:
Originally Posted by photoman327 View Post
thanks! have not been on you site in a while. MY first thought was Volvo has lost their freaking mind and I waited to late. at the time I did not have a car worth of Barton badging.
100% correct, but not on the worthyness. Any cared for project Volvo qualifies in my book.
dbarton is offline   Reply With Quote
Old 05-22-2018, 02:40 PM   #15
quillc
yv1a.com
 
quillc's Avatar
 
Join Date: Aug 2008
Location: Kitsap, Wa
Default

Had the same thing happen on a B21FT.

Change the oil.
remove the plugs and pull the fuel pump fuse.
Crank for a bit to clear the cylinders.
I then also blew compressed air in the cylinders till I didn't smell gas.
Put in new plugs.

I then cranked it till the oil pressure came up to normal.

Wind it up and enjoy.

I then changed the oil at 500 miles.
__________________
Chris
www.yv1a.com
quillc is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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 On

Forum Jump


All times are GMT -4. The time now is 02:49 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.