OK thanks guys
Announcement
Collapse
No announcement yet.
How bad is this?
Collapse
X
-
Are you taking this right apart or just trying to change the HG?
My opinion on this is I wouldn't put it back together like that. That little scratch is almost across the sealing land of the metal firing ring of the HG. These fiber/metal HG are not super tolerant to scratches. Maybe even a little combustion crud could seal that up, but you never know.
Strip it all down and get the deck milled. It sucks, but I'd rather have something I know will seal than be wondering when I'm going to get a leak.
I've dealt with many of these situations at work, and granted the financials are a little different, but it's almost always cheaper in the long run to do it right the first time.
Comment
-
Originally posted by SeatTime View PostAre you taking this right apart or just trying to change the HG?
My opinion on this is I wouldn't put it back together like that. That little scratch is almost across the sealing land of the metal firing ring of the HG. These fiber/metal HG are not super tolerant to scratches. Maybe even a little combustion crud could seal that up, but you never know.
Strip it all down and get the deck milled. It sucks, but I'd rather have something I know will seal than be wondering when I'm going to get a leak.
I've dealt with many of these situations at work, and granted the financials are a little different, but it's almost always cheaper in the long run to do it right the first time.
i really dont have the time or money to take it apart and get it milled, but i might have to because after cleaning it a bit more i found this...Last edited by dougie30; 12-09-2012, 10:43 AM.M30 is God's motor.....but Jesus drives an M60'd car -slammin.e28
Comment
-
the first pic is a vertical scratch that i can catch my finger nail on, not sure if thats bad or not.
the rest of the pics im not even sure what happend there, its a rough area between every set of coolant passages, im guessing the coolant crept in there and corroded it?
soo does this mean i need to re surface the block? or if it is still flat could i just put the HG on there?M30 is God's motor.....but Jesus drives an M60'd car -slammin.e28
Comment
-
The corrosion around the cooling passages is sufficient cause to remove the block, tear it down, and have it milled. Once you are that far into it, new rings and bearings would be a darn good idea. But before any work on the block, have the machine shop check the cylinders to see if they are still within the wear limit. If the are surfacing the block and cross hatch honing of the cylinders will put the block back into good condition. If the cylinders are worn past the wear limit a good used engine will be the cheaper route. A set of overbore pistons can cost as much, or more, than a used engine.
FYI, do not have the block hot tanked. That will destroy the intermediate shaft bearings, which are a pita to replace.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL
Comment
Comment