an object graphic lesson
 

My only excuse for posting this junk Jaguar here is as an object graphic lesson.
If you do not understand what you are doing; do not touch it.

The previous owner was a young man.
He decided to DIY change the head gasket; to save money.
The following pictures show what happened.

an object graphic lesson pic 6
 

an object graphic lesson pic 6

What did he do (or not do) that caused all that carnage?

Ouch!:eek:

set the cam timing wrong
 

Hello ehmand
He set the cam timing wrong and junked the engine.

Ouch! What year Jag?

An (EXPENSIVE) object graphic lesson.

Louis

Always turn an engine by hand after any timing components are R&R. Thus will show any interferences before anything is damaged.

P E H

1994 XJ6
 

1994 XJ6

Why is it junk? My grandparents had one of those, other than needing a valve job at like 60k miles it seemed to be a good car. It was nicer than there 86' but no match for the XJ8.

the car body is OK but
 

the engine is junked.
The young man who did this damage kept cranking until the battery was dead, recharged battery, and repeated the process at least fifteen minutes total.
The oil pump is seized with metal fragments.
The crank shaft makes a grinding sound as you turn it with a ratchet, and it binds with cylinder #4 at TDC.
Two valves are naked eye visibly bent.
The head has a naked eye visible warp from end to end.
The cam lobes are coated with heavy pitting rust.

Open hood, insert tuned port injected LT-1 from a dead corvette.

Car suddenly becomes something other than a pretty paper weight.

:)


Seriously, it's amazing what some people do to motors, it's as if there are no books to be read or advice to be sought. I put a timing chain on my 78 Honda Z50 when I was eight years old, adjusted the valves, and had many years of service from it, this stuff isnt that complicated, people are just ignorant.

Any Chevy smallblock V-8 would be a big improvement over the original Jag engine. There are many kits out there to do this swap.
Yes the LT1 is a fantastic engine.:D

I offered to install
 

a long life MB diesel in place of their gasser. LOL
For some reason they thought I was joking. :D
I showed them that it had been running on four cylinders for years.
Even a 190D would have beaten it off the line. LOL :D
A good used engine will be installed and out the door by Friday.
:eek:It would have been cheaper to buy and install the LT1 or a MB diesel. :rolleyes:

An MB diesel is a facinating idea really, I love the ride and look of those Jags, more so the older XJ-S two door, but the 6 is a nice looking sedan. Wonder how much they weigh..

There actually a fun car with a 350 of any sort, guy brought me one with the drivetrain installed and a Holley 4V ProJection setup in a box once and a big grin. Neat setup, seems like he hit 25mpg on the highway eventually, was running a 700R4 auto OD with a lockup converter. A vast improvement over the original mill.