"other projects"

[Gene]

 My trusty (formerly?) 91 Toyota with a 22RE 4 cylinder engine had a blown head gasket and was consuming coolant at a prodigous rate.
Beause of various problems and projects, (yes, my 85 650sc) I finally got finished. I've been working on cats/trucks/motorcycles starting when I was 13, but never have I ran across a engine that tried my patiance more than this engine. For starters, how about a fuel filter that is bolted to the block underneath the intake manifold? Anyone else ran ino this kind of frustration?

[mollusc]

I have a Land Rover.  Most things are easy to get to, but boy do you have to keep up on the maintenance.  When neglected, they go downhill quickly.  Right now I'm dealing with a slipped cylinder liner.

[Gene]

I have never heard of a cylinder liner slipping. I would think that once the cylinder head is installed, the liner would have nowhere to go.

[Larry Fine]

I have never heard of a cylinder liner slipping. I would think that once the cylinder head is installed, the liner would have nowhere to go.

I would tend to agree with you. It can't rise because of the head, and it shouldn't be able to drop due to the crankcase.

[Gene]

 Also, from what I understand, most cylinder liners are shrink to fit.

[mollusc]

It's a known issue with the Rover V8 engine blocks as the tooling wore out and the bores became slightly larger than they were supposed to.  As a result, the liners can move downwards slightly when the block heats up (liners are steel, block is aluminium, so you have differential expansion).  The liners cannot go up, of course.  The full-rebuild solution is to install "top hat" liners that have a lip on them that fits into a machined recess in the top of the block.  Instead I'm planning to get every liner back to the upper position, then drill them and pin them so that they stay put.

[Larry Fine]

As a result, the liners can move downwards slightly when the block heats up.

How does one now when it happens?

[Bob H]

Instead I'm planning to...

SELL IT

[mollusc]

As a result, the liners can move downwards slightly when the block heats up.

How does one now when it happens?

A knocking sound that you would normally think was a collapsed lifter, but it only shows up when the engine is fully warmed up and goes away above about 2500rpm (after that there is not enough time between strokes for the liner to reach the end of its travel and make a noise).

[draser]

My trusty (formerly?) 91 Toyota with a 22RE 4 cylinder engine had a blown head gasket and was consuming coolant at a prodigous rate.

Any idea how it got there? Overheating? Need to skim block/head?