MercuryMarauder.net Forums    

Go Back   MercuryMarauder.net Forums > Marauder Community > The Classic Lounge

The Classic Lounge Home of the 63-65, 69-70 Classic Marauders

Reply
 
Thread Tools Display Modes
  #1  
Old 12-19-2018, 08:00 PM
Thomas C Potter Thomas C Potter is offline
Senior Member
 

Join Date: Apr 2003
Location: Fairfax VA
Age: 60
Posts: 519
Trader: (0)
Extreme pre ignition runs like crap!

My 68 LTD has been running great for 10 years / 30k miles on rebuilt FE engine, stock, nothing fancy. Very consistent Barry Grant 650 carb, Pertronix ignition.

On same full tank of gas, ran great for the first 5/8, and within 20 miles slowly developed extreme pre ignition, low power. I almost had it towed home.

First was to check timing, right were it has been, 8 deg static, 34 full.
All spark plugs look good, I was hoping to see some crud lodged in 2 or 3 plugs, but none.

I am in process of drawing old gas and put in fresh. I always use name brand gas, no 7/11 or shettz crap.

Thoughts??
Reply With Quote
  #2  
Old 12-19-2018, 08:09 PM
merc406's Avatar
merc406 merc406 is offline
Rolling Thunder
 

Join Date: Jan 2003
Location: Orlando, FL
Posts: 2,227
Trader: (0)
Your on the right track
__________________
63 1/2' Merc 406 (434ci) tri-powered "Ratsmoker"
Reply With Quote
  #3  
Old 12-20-2018, 06:56 AM
Turbov6Bryan's Avatar
Turbov6Bryan Turbov6Bryan is offline
I miss whitey here
 

Join Date: Nov 2014
Location: KC
Age: 43
Posts: 3,047
Trader: (5)
Bad gas, fuel filter.

See if the carb has a small fuel filter right at the inlet, where the gas line attaches.

Then check to see if the fuel pump diaphragm is good or bad
__________________
The twins2.3 whipple/aluminatorVortech V-2 lots of goodies

04 DTR
03 Black 300A
03 Black 300A
03 C.V. Sport Silver Frost
04 Supercharged SILVER BIRCH
04 Supercharged SILVER BIRCH
04 SILVER BIRCH NA
Reply With Quote
  #4  
Old 12-20-2018, 12:29 PM
Grimrepairman Grimrepairman is offline
Senior Member
 

Join Date: Jan 2018
Location: Califon NJ
Age: 32
Posts: 160
Trader: (0)
+1
Sounds like a lean condition. I'm doubting it's a vacuum leak, but not impossible. Could be a sticky float or some gunk in a jet. I clean lots of ethanol crud out of carburetors these days.
Reply With Quote
  #5  
Old 12-20-2018, 03:35 PM
fairlane347's Avatar
fairlane347 fairlane347 is offline
Mr. Mercury
 

Join Date: Apr 2004
Location: Wisconsin
Age: 41
Posts: 678
Trader: (3)
I think your looking at right things. I however ran into bunch of trouble with Petronix (won't ever use it again). Just check that its working well. I have FE's as well and I run 12-14 of initial timing, especially with hotter ignition. That's with pump gas as well. Check for good grounds for your ignition too.
__________________
#1724 of 3214 Built 02/13/2004
2004 Marauder black/moonroof
SCT flip chip, 4:10's, lowered, K&N kit, big brake kit
Kenwood KDC-X790 & 4 Kenwood speakers, 10" Sub
Addco tube sway bars & performance shocks, Metco's
Zex dry nitrous kit, Full SW Exhaust Kit, PI 3000 Stall
5.0L Stroker kit +other goodies, Self installed!
E.T. on drag radial tires: 12.270 @ 111.16 & 1.66 60'
One off custom Hood all steel too.


Ryan Schmuki
2003 Marauder, black with 4.10s n tune
1968 Fairlane 347 built stroker(fast)
1963 Galaxie 390 auto
2010 Mercury Milan, wife's car
Reply With Quote
  #6  
Old 12-20-2018, 03:39 PM
TooManyFords's Avatar
TooManyFords TooManyFords is offline
Action figures sold separately
 

Join Date: May 2003
Location: Waterloo, IA
Age: 59
Posts: 4,395
Trader: (6)
I'd bet it was a lean condition as well. check the fuel pump. You didn't accidentally get some E85?
Reply With Quote
  #7  
Old 02-03-2019, 12:53 PM
Thomas C Potter Thomas C Potter is offline
Senior Member
 

Join Date: Apr 2003
Location: Fairfax VA
Age: 60
Posts: 519
Trader: (0)
All indications are a head gasket leak between 3 & 4.

So, if someone wants to buy a rust free (came from California) 4 door Brougham in the next 48 hours, it is available. I do not want to sell, but we are in midst of getting house on the market, retiring, moving somewhat south. My 06 Mustang GT conv is advertised, it makes sense to sell one of my cars to free up garage space (storage space) vs the $4000 min it will cost to do the pod thing.

Why 48 hours, I plan to take Tuesday off and take the heads off on this LTD.

$5000

TP 703 620-2243 call after 8:15am, or before 9PM


how do I put a picture right here??
Attached Images
File Type: jpg at Hershey w Nellie.jpg (108.9 KB, 24 views)
Reply With Quote
  #8  
Old 02-03-2019, 12:57 PM
Thomas C Potter Thomas C Potter is offline
Senior Member
 

Join Date: Apr 2003
Location: Fairfax VA
Age: 60
Posts: 519
Trader: (0)
never mind, pic did attach...
Attached Images
File Type: jpg interior 2.JPG (111.0 KB, 22 views)
Reply With Quote
  #9  
Old 02-10-2019, 05:56 PM
Thomas C Potter Thomas C Potter is offline
Senior Member
 

Join Date: Apr 2003
Location: Fairfax VA
Age: 60
Posts: 519
Trader: (0)
ThinkI see the problem, those no-need to retorque head gaskets!!
Loosening the ARP nuts on the passenger head, some were not that tight. So much for no re-torque required!! #$&$#@(!!

What is the experience on the more modern torque-to-yield head bolts??
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Extreme Shepherding ctrlraven The Lounge 3 03-23-2009 03:37 PM
This Oil Works Oil Extreme warren Shop Talk 11 08-05-2006 05:48 PM
eXtreme Rims gdmjoe The Lounge 20 01-26-2006 10:08 AM
SCT Extreme software Dennis Reinhart Reinhart Automotive 21 06-06-2005 11:37 PM
Extreme Jealousy P74vic Community Discussion 2 08-12-2002 11:02 AM


All times are GMT -7. The time now is 09:52 PM.


Powered by: vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright ©2002 - 2017 - MercuryMarauder.net