Blown Engine - 2005-02-21
 

During the saturday session at VIR I missed shifted and went from 3rd gear to 2nd instead of 4th resulting in revving the engine to 7200 rpm's. Here's the result.

 

I pulled all the plugs and did a compression check. Plug 4 (Far back Driver side) the plug was burnt off. Not sure how long it has been like that. Plug 7 (2nd from back pass side) was covered in oil. The compression check is below. Where 1 is Front driver side 4 is back driver side, 5 is front pass side and 8 is back driver side. So it looks like 4 was running very lean (to burn the plug) 7 has a cracked ring and 8 is not doing well either.

 

1 - 174
2 - 165
3 - 180
4 - 178
5 - 152
6 - 190
7 - 0
8 - 90

 

Engine has been removed. During the tear down I found Cylinder 7 had a hole blown through the piston. All 4 rings were also destroyed. The heads were untouched, head gaskets were in great shape. Looks like it is time for a new one.

 



















































































 




(C) 2002 Chad 2kgt Skin 2000 Ford MustangGT