I'm currently rebuilding a z6 and when I got down to the block I found something that seems to be a problem... The outsides of the sleeve seems to be chipped. (this is on the bottom end of the block, I'm not sure if its the same on the top yet) The "chips" seem like they could have been caused from erosion, but I am not sure. The engine ran fine when taken from the car. What should I do? Can this be fixed? I will post some pics if my description doesn't explain my situation.

Let me know what ya think.

 

help?

 

pics always help

 

Is it in the coolant passages where it looks chipped?

 

pics = better help

 

theres a few pictures, hope that helps.

 

ive never seen anything like that b4, not even sure how it could have happened, i would just get another z6 block, there so cheap anyway

 

Yeah I figured I'd just get a different block... I searched for this everywhere and couldn't find anything like it either. hah.

 

looks like some one droped it or droped something on it.

 

I dont know how that would be possible, took the engine from the car and put it on a stand... then I took it apart and found this, I dont understand because the car ran fine and didnt burn any oil etc with 188,000 miles on it.

 

It could be from putting battery acid in your antifreeze.

 

Haha, I'm hoping that was a joke.

The engine was originally owned by my brother, he took very good care it... and like I said it ran fine when pulled.

I guess nobody has seen this before???

 

Those coolant jackets look like ****.

More than likely the coolant was extremely old and began eating at the metal. It's common... on american cars. This is why it's advised people do coolant flush's every 30k or so. I've seen it on alot of old iron block engines.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nameless RB26 &raquo;</TD></TR><TR><TD CLASS="quote">Those coolant jackets look like ****.

More than likely the coolant was extremely old and began eating at the metal. It's common... on american cars. This is why it's advised people do coolant flush's every 30k or so. I've seen it on alot of old iron block engines.</TD></TR></TABLE>

sounds about right. can it be fixed, yes... but I'd say it's not really worth it. it looks usable but I can see it causing head gasket failure...

 

bump

 

Yes,its corrosion caused by old antifreeze.
Glenn

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miahmouse &raquo;</TD></TR><TR><TD CLASS="quote">

but I can see it causing head gasket failure...</TD></TR></TABLE>

Thats what I was worried about. I figured there would be some cracks also but I could not find any.


Thanks for the responses... I'm off to find a new block now

 

well, who's got a block for me ?

 

bump, man that sucks, i beat you flipped when you saw that. Just dealying the project

 

what where your plans for the block

 

On a side note, is it normal for a piston to look like this?

That's nasty as hell.

 

Hell no. That's alot of deposit.. likely it had some issues long before you started ripping it apart.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IslandSi &raquo;</TD></TR><TR><TD CLASS="quote">On a side note, is it normal for a piston to look like this?

That's nasty as hell.</TD></TR></TABLE>

I dont really car what the pistons looks like, i've got new a6 pistons to replace them

But it looks like I need to just find a block that is in better shape for the rebuild.

Edit: I'm building a little crx project to see what I can get out of a d-series engine. This engine was free (it ran well when taken from the car) I've bought a few things for the build like pistons, camshaft, titanium ret., better springs, clutch, zex flywheel etc... I've got all the wiring done and waiting for an engine. A local shop is going to help me with the bottom end rebuild and valve job. This f'ed up block will be setting me back a little but oh well.

 

I've been doing some thinking about this project... I think I'm just gonna sell all the parts I've bought and buy a b16. If I bought the b16 it would be about the same price as the money I'll be putting into the z6. Not sure yet though...