specifics of 3sgte block Options

[enderswift]

hey everyone,

I got into an argument today about the 3s. The people I was talking with insisted that EVERY cast iron block MUST have sleeves, because cast iron cant stand up to the conditions in a cylinder.

I said that the 3s does not have sleeves, and when I jumped on google I confirmed that fact. However, I could not find information on whether the cylinder walls are plated with a harder material. Could someone shed some light on the issue? If i remember right I saw photos of cylinder liners on someones 3s block in a thread. Do we have cylinder liners or is it just the cast block? I looked through my factory service manual and couldn't find any information either.

any input is appreciated

This post has been edited by enderswift: Aug 23, 2011 - 7:37 PM

[Neon90424]

i believe its a simple cast dumb iron block...

[Soulend]

Well I know if the they were sleeved... we would know about it... because, iirc, Sleeved cylinders are PIDA. I think I had a friend with a taco with sleeved cylinders and he said its almost impossible to work with them. and i know people here have changed things with the cylinders on here.

[enderswift]

i believe its a simple cast dumb iron block...

thats what I always thought too. And I never saw anything on 6gc saying otherwise. But these dudes have been in CNC manufacturing for years, and they insisted that cast iron wouldn't be able to stand up to the abuse of a cylinder, and therefore that there must be a sleeve. I figured that at most there could be plated layer on the cylinder walls. But that would be pretty high end for a 90's engine. Then I remembered seeing a photo of the cylinder walls through one of the coolant ports on the block, meaning the coolant flows around the cylinder walls just like wet liners.

So to me it seems that we have a cylinder block with a water jacket surrounding the cylinder walls, just like wet liners, only minus the removable part.

anyone else have anything to add? I'm still curious as to why these guys think cast iron is a bad material for cylinder walls...

[mkernz22]

this is from one of my 5s'. the HG is still on, but you get the picture

[Cuts_the_Pilot]

The people you were talking to are fools.

Cast iron has been used in engine blocks since the get go.
Even some alloy blocks use a normal cast iron sleeve.

[Neon90424]

Yeah, down here when they machine blocks I've never heard that they would have to sleeve or coat anything on my block, luckily i stayed standard bore:)

[Smaay]

ill put this to rest. the 3S-GTE and 5S-FE are Iron block with NO sleeves!!! The 2JZ-GTE doesn't have sleeves either and we all know what kind of power it can make. Now the 1ZZ-FE is an aluminum block that has an iron sleeve insert, but the 2ZZ-GE is all aluminum with a HMC treatment on the cylinder walls. you do not hone the 2ZZ cylinders.

[enderswift]

Thanks for the responses guys,

They had me second guessing myself and I just wanted to confirm.