The oil pan cannot be removed from a 2.9 engine "in the chassis"
unless the transmission is removed first.
and even then you need someone with small hands that can reach up inside the gap between the oil pan and the block to unbolt the oil pump and "drop it" into the pan otherwise the pan will not come down.
Reassembly requires reversing the proceedure...
trust me this is pretty ugly and involves much cursing and screaming and a probable visit from the police when a
neighbor calls about the insane raving the fourteenth and seventeenth time you have to unbolt the one bolt you got started after you dropped the second into the oil pan.
OR if the police are having a busy night they might arrive just in time to arrest you for arson after pouring gasoline over your truck and setting it on fire.
disassembling a 2.9 engine EXCEPT for doing the automotive
equivelent of an autopsy is.... I'm trying to be polite but I'm
about to fail... Prompts me to ask: Are you phucking nuts?
Continuing to disassemble an engine in the chassis after you
have found a
hole burned in a piston
suggests a need for a 72hour involuntary commitment to a
mental health facility near you... or at minimum some
electroshock therapy
I can only believe you must be phucking nuts.
You have reached the point were you should pull the engine
and deliver it to to a commercial recycling facility near you,
collect your $0.12-$0.14/lb
after which you should go to a junkyard and buy another engine.
Your hole is most likely the result of coolant consumption
or "lean ping" detonation
I think you'll discover that a headgasket set and the REQUIRED
set of ONE-USE headbolts cost MORE than another engine will.
Hey, I had five or six different 2.9's in my truck in the time I owned it. And aside from the one I U-boated and not only
bent a connecting rod, but jammed the wrist pin bosses
into a crank counterweight I only disassembled one other one
and that was to keep th GOOD (I.E. uncracked) head because someone asked me for it.
As a parting comment might I suggest that now might be the ideal
time to consider a 4.0 swap?
AD