Found my ignition miss.... - JeepForum.com
 
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post #1 of 4 Old 04-22-2013, 09:12 PM Thread Starter
super98lsc
Web Wheeler
1999 WJ 
 
Join Date: May 2006
Location: Austin
Posts: 1,415
Found my ignition miss....

Posted from phone. Last week the wagon added a missfire to go with the valve tap. I pulled a few plugs they looked good, checked timing, wires, and replaced my Borg Warner HEI module with an Accel one for more dwell (who knows) then recurved the distributor cleaned it etc. with the distributor out I noticed oil around the intake bolts, hmmm finger tight on nearly all of them. Re torqued them then seafoamed it. Next drove it down the highway for 30m to a friends, ran fine. Overall still felt "chuggy" under 2k. Pulled #5 and #7 plugs tonight on a haunch coolant fowled. :-( so is it head, head gasket, intake leaked coolant into runners... I plan to redo the heads while they are off for the cam,lifter, intake, carb swap.

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www.mangierisrc.com
06-Corvette z51-6spd,b&b,K&N low miles.
77-Corvette Stingray 496 BBC/TH400 built 667hp+
===================================
00 WJ 4x4, 4.7 stroker, turbocharged,..lots more..
01 WJ 4x2 4.7v8 Limited (needs valve job)
90 Grand Wagoneer 401 Edelbrock Heads, Lunati .510/.527 FT Cam, Edelbrock RPM Air Gap, Holley HP 750, Thorley Headers, HEI, Electric Fan w Digital controller,4" lift 31x10.50 Goodyear Duratrac's on Pro-Comp Wheels,new interior, seats,seals,Alpine and JL full system, Remote HEI, Clifford 2 way with remote start,windows,tailgate.
96 Cherokee Country 4dr/2x2 White/Tan 3" Lift Sahara 18" Wheels 32.5"'s 99up head and intake- for sale soon!
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post #2 of 4 Old 04-23-2013, 06:48 PM
revelc
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1985 FSJ Wagoneer 
 
Join Date: Nov 2011
Location: Tyler
Posts: 662
Quote:
Originally Posted by super98lsc
Posted from phone. Last week the wagon added a missfire to go with the valve tap. I pulled a few plugs they looked good, checked timing, wires, and replaced my Borg Warner HEI module with an Accel one for more dwell (who knows) then recurved the distributor cleaned it etc. with the distributor out I noticed oil around the intake bolts, hmmm finger tight on nearly all of them. Re torqued them then seafoamed it. Next drove it down the highway for 30m to a friends, ran fine. Overall still felt "chuggy" under 2k. Pulled #5 and #7 plugs tonight on a haunch coolant fowled. :-( so is it head, head gasket, intake leaked coolant into runners... I plan to redo the heads while they are off for the cam,lifter, intake, carb swap.
I'm glad you didn't break a rod

Now would be the time to machine the guides for the fancy seals that accommodate a high lift cam.

Scorpion pedestal mounts ( very reasonably priced option )

May I suggest, a Lunati 262 cam, lifter, spring kit http://www.lunatipower.com/Product.aspx?id=2392&gid=297

Edelbrock RPM manifold

And a Holley or Edelbrock of your choice. 650cfm area

Would make a spicy little daily driver. But I'm a power hungry fool.

Wag Rebuilt 360, 260H, 727, Locked 44, AMC 20, 208, 31" M/T's, 4" Rustys, 2.5" Duals. SOON:SOA SF, 496, T400, Doubler, D60's, 37" M/T's <-TOY
Cherokee Rebuilt 360, 2" Duals, mostly stock. SOON: Hot Street 401, 4'' Rustys, 33" BFG A/T's maybe a T-case to get rid of Q-Track <-TOW RIG
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post #3 of 4 Old 04-23-2013, 09:22 PM Thread Starter
super98lsc
Web Wheeler
1999 WJ 
 
Join Date: May 2006
Location: Austin
Posts: 1,415
Have another thread going with all the parts.
Crane/summit 8601 cam .497/.522 lift 300/304 adv duration
Edelbrock rpm air gap
Manley springs, retainers, locks
true double roller chain, cloyes I think?
Holley HP 750
Some other goodies, may freshen bottom end too depending on looks it was already redone at some point.

www.mangierisrc.com
06-Corvette z51-6spd,b&b,K&N low miles.
77-Corvette Stingray 496 BBC/TH400 built 667hp+
===================================
00 WJ 4x4, 4.7 stroker, turbocharged,..lots more..
01 WJ 4x2 4.7v8 Limited (needs valve job)
90 Grand Wagoneer 401 Edelbrock Heads, Lunati .510/.527 FT Cam, Edelbrock RPM Air Gap, Holley HP 750, Thorley Headers, HEI, Electric Fan w Digital controller,4" lift 31x10.50 Goodyear Duratrac's on Pro-Comp Wheels,new interior, seats,seals,Alpine and JL full system, Remote HEI, Clifford 2 way with remote start,windows,tailgate.
96 Cherokee Country 4dr/2x2 White/Tan 3" Lift Sahara 18" Wheels 32.5"'s 99up head and intake- for sale soon!
super98lsc is offline  
post #4 of 4 Old 04-24-2013, 07:15 PM Thread Starter
super98lsc
Web Wheeler
1999 WJ 
 
Join Date: May 2006
Location: Austin
Posts: 1,415
Well its not coolant, they are just ash fouled. The 2 steps hotter heat range plugs the PO had installed were just cooking off the oil that I presume is getting past the guides/seals on that cylinder or the intake manifold having literally finger tight or less bolts probably sucked its share of oil down the runners. Either way the whole thing is coming apart soon. This engine really just runs rough and crappy in general but oil pressure is solid 50 on highway and 20+ warm idle. Figure ill do a midplate and see what else is up while I have it apart.

www.mangierisrc.com
06-Corvette z51-6spd,b&b,K&N low miles.
77-Corvette Stingray 496 BBC/TH400 built 667hp+
===================================
00 WJ 4x4, 4.7 stroker, turbocharged,..lots more..
01 WJ 4x2 4.7v8 Limited (needs valve job)
90 Grand Wagoneer 401 Edelbrock Heads, Lunati .510/.527 FT Cam, Edelbrock RPM Air Gap, Holley HP 750, Thorley Headers, HEI, Electric Fan w Digital controller,4" lift 31x10.50 Goodyear Duratrac's on Pro-Comp Wheels,new interior, seats,seals,Alpine and JL full system, Remote HEI, Clifford 2 way with remote start,windows,tailgate.
96 Cherokee Country 4dr/2x2 White/Tan 3" Lift Sahara 18" Wheels 32.5"'s 99up head and intake- for sale soon!
super98lsc is offline  
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