Cylinder Liners

[safetybuzz]

Hello,

Just out of curiosity, what type of material are the cylinder liners made from for the LQ1 engine? Cast Iron?

Thnx in advance

[series8217]

Cylinder liners? Its an iron block, dude.

[safetybuzz]

Cylinder liners? Its an iron block, dude.

*slaps forehead*

[heza]

...liners are for diesels

[toms92gp]

I wish gas engines used liners like diesels, it would make rebuilding a breeze.

[GPXSS]

they can be lined, but it is cost prohibitive unless you are a race team.

[Lyle's GTP]

Well you can do it, we did it all of the time at Optimax. If the cylinder wall was cracked or to out of round. We would bore the cylinder about .200" over size depending on th engine and install a sleeve. We never had to do this on any LQ1's but maybe it can be done.

Aluminum Blocks all have liners or sleeves so it's not just diesels that use them. I guess it might be worth it if you were seriously looking for the convienience if you were racing your engine.

Lyle

[timg]

I have a sleeved gas motor.

Tim

[Schurkey]

Aluminum Blocks all have liners or sleeves so it's not just diesels that use them.

No, not all. There are any number of aluminum-cylindered engines; among them are the later aluminum 427 BBC ZL-1 blocks; the Vega 2.3 4-popper up to about '75 or so; and various Mercedes engines.

So far as I know, what those engines have in common is the hypereutectic aluminum alloy used to cast the block.

Yes, I'm well aware that GM had no end of trouble with Vegas and scored pistons/cylinders; especially after a rebuild that didn't involve shoving iron sleeves into the cylinders.

[Coyote_Rage]

Yes, I'm well aware that GM had no end of trouble with Vegas and scored pistons/cylinders; especially after a rebuild that didn't involve shoving iron sleeves into the cylinders.

Funny this came up.. I was talking with my Dad, who was a dealer mechanic for GM during the mid to late 70's, a few weeks ago and he mentioned the Vega problems. Apparently the fix was layers and layers of an "aluminum paint". He said it was what GM had prescribed in one of their early bullitens. He also mentioned it didn't last very long so they just resleaved the motors.