4.0 Death

bootlegger · 01-08-2014, 12:13 PM

Engine went to 260 and blew a hose in my xj.Now she won't stay runnin. I'm assuming head gasket went.203k on the clock.Do I fix, replace or repower? Tight budget. I like little 4 cyl. diesels though......?

monkeystrong · 01-08-2014, 01:11 PM

Depends.. if its the gasket, then replace and keep on truck'n. if its the head itself, then I would start looking for options.

WrenchMonkey · 01-08-2014, 01:36 PM

Tight budgets and diesel conversions do not go together...

Fixing what you have is almost always cheaper. Even if you have to replace the whole engine, a bolt-in replacement is going to be faster, easier and cheaper.

bootlegger · 01-08-2014, 01:59 PM

I guess I'll get the head off and go from there.I'm just thinking it's probably cracked.
BTW i was just reading that there's a 4.0 poweresd vehicle in the current Dakar rally.

humpy · 01-08-2014, 03:54 PM

Put a tstat and new hose on and try it first... It's likely not runnin because of lack of coolant I noticed both if our 4.0 engines don't run right without coolant system sealed up and coolant in them ..., or u may have frozen it and junked it ... Is that possible?

bootlegger · 01-08-2014, 04:15 PM

Something is freezing up.The crank pulley is smoking the belt.Accys are barely turning. I'm thinking water pump or power steering.

GPER · 01-08-2014, 06:10 PM

Quote:

Originally Posted by bootlegger

I guess I'll get the head off and go from there.I'm just thinking it's probably cracked.
BTW i was just reading that there's a 4.0 poweresd vehicle in the current Dakar rally.

There are two Jeeps in the Dakar and the top one was in 94th spot as of yesterday.

bootlegger · 01-10-2014, 06:32 PM

After removing the belt , everything turns freely!!??
Good news is the oil looks fine and it drove back to the barn ok.I think i will change t stat, put a new hose and belt on ,fill up on critter killer and hope for the best.

01-08-2014, 12:13 PM	#1
bootlegger Join Date: Nov 2012 Posts: 59	4.0 Death Engine went to 260 and blew a hose in my xj.Now she won't stay runnin. I'm assuming head gasket went.203k on the clock.Do I fix, replace or repower? Tight budget. I like little 4 cyl. diesels though......?

01-08-2014, 01:36 PM	#3
WrenchMonkey Mechanical Animal - CORE Member - - Moderator - Join Date: Feb 2008 Location: Beechmont Posts: 1,883	Tight budgets and diesel conversions do not go together... Fixing what you have is almost always cheaper. Even if you have to replace the whole engine, a bolt-in replacement is going to be faster, easier and cheaper. __________________ DIRTY DEEDS, DONE DIRT CHEAP Whatever doesn't kill you makes you stranger

01-08-2014, 03:54 PM	#5
humpy Join Date: Sep 2008 Posts: 573	Put a tstat and new hose on and try it first... It's likely not runnin because of lack of coolant I noticed both if our 4.0 engines don't run right without coolant system sealed up and coolant in them ..., or u may have frozen it and junked it ... Is that possible? __________________ S10 with a few air shocks..

01-08-2014, 01:11 PM	#2
monkeystrong Señor Monkey Join Date: May 2012 Location: Georgetown, Ohio Posts: 185	Depends.. if its the gasket, then replace and keep on truck'n. if its the head itself, then I would start looking for options.

01-08-2014, 01:59 PM	#4
bootlegger Join Date: Nov 2012 Posts: 59	I guess I'll get the head off and go from there.I'm just thinking it's probably cracked. BTW i was just reading that there's a 4.0 poweresd vehicle in the current Dakar rally.

01-08-2014, 04:15 PM	#6
bootlegger Join Date: Nov 2012 Posts: 59	Something is freezing up.The crank pulley is smoking the belt.Accys are barely turning. I'm thinking water pump or power steering.

01-10-2014, 06:32 PM	#8
bootlegger Join Date: Nov 2012 Posts: 59	After removing the belt , everything turns freely!!?? Good news is the oil looks fine and it drove back to the barn ok.I think i will change t stat, put a new hose and belt on ,fill up on critter killer and hope for the best.