Volks,

Found the problem with my AVP 2.1L Rebuilt Engine.

One Cracked Head, leaking paste intake valves and one cylinder o-ring
damaged.

In the interest of being more accurate on the problem description.

It was blowing collant out of the fill bottle overflow at highway
Speed .. Above 45mph but fine around town.

Background:

Purchased the AVP engine from Bus Depot last May and have driven it
For just under 9,000.

Currently in discussions with Lenoard at AVP and Ron at Bus Depot as
 to whether any of this is covering under the 12 month/12k mile warranty.

So now I'm looking for a new set of AMC heads at the best price I can find..

Various test Results on the Engine:
 
Compression Gasses test via Emissions type sniffer
1000 HC
300 HC
250 HC

Leak Down Test
45/65/45/85

Compression
110/105/115/80

Disassembled things far enough to check all head bolts.
Found a total of 8 loose.

Pulled the heads .....

Left side head cracked on the small land between the two valve sets.

Both heads had valves leaking, not sealing correctly.

Here' the previous postings about this problem.

Archive Links:

Engine overheating - Need Advice
http://tinyurl.com/5zhqh

Update on Engine Overheating Concern
http://tinyurl.com/6bwdl

Engine Still Overheating - Need Advice / Chapter Three
http://tinyurl.com/6g2m5

Engine Still Overheating - Need Advice / Chapter Three .. Terry K
clarification
http://tinyurl.com/3mwj7

Larry Chase
www.roadhaus.com