I noticed oil in my coolant overflow tank last night. Obviously head gasket failure.

When I remove the cylinder head and inspect the gasket, how will I know why it failed? How do I know my cylinder head is warped? Can I know by inspecting the head gasket?

There is 250,000miles on this d15b7 engine.

 

you wont know. might as well replace the gasket, mill the head and call it a day.

 

Once you pull the head, you can use a machinist straight edge to measure the block and head to check for warpage.



There's a pic on how to check the head. I believe you do the block in a similar fashion.

 

Price of a junkyard D15B longblock < price of machine work, parts and assembly. Just something to consider.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archidictus &raquo;</TD></TR><TR><TD CLASS="quote">Price of a junkyard D15B longblock &lt; price of machine work, parts and assembly. Just something to consider.</TD></TR></TABLE>

Yep, considering that too. I'd have to rent an engine hoist too.