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Engine Damage Triage


DaHose

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Ok.  Now that the engine is completely apart, the full scope of the damage is clear and next steps can be planned out.

 

Here you can see that the bearings are all worn, and the #1 conrod. journal is roasted.  Remember that this is an engine with less than 5000 miles on it since the bottom end rebuild.

02crank-and-bearings.thumb.JPG.b97ad97e5d0141f5e6045cc011fb52f9.JPG

 

For good measure, here is a closeup of the burned journal, then one of the main bearings ( #1 on L).

IMG_4869.thumb.JPG.3c9e51fcbb06d4b71d130737700097fe.JPG

 

02-main-bearings.thumb.jpg.f58bb680f2772c6e9afeed69b52b1dc8.jpg

 

This is what the conrod bearings looked like (#1 on L).

 

02conrod-bearings.thumb.jpg.b6f9ac2682dcc1c79b5805435b779d50.jpg

 

The block and crank are now at a local machine shop getting cleaned up.  The block is fine, but I need to wait and hear if the crank is salvageable, or if I need to buy a good used one.  I also had some preliminary discussion about replacing the conrods with something that can survive turbo HP, and that is looking like it will have an OUCH price tag of around $1500 for the set of 4.

 

Jose

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Heya Pat,

 

Most of what I have learned so far leads me to understand that the stock rod is good for up around 195 HP.  Granted, that is is a sky high number for a regular 02, but I will be boosting the engine.  When you are upwards of 250HP and 220 ft/lb torque, the consensus is that you need to use a stronger conrod, along with some forged pistons.  I am looking at a setup with Pauter rods and JE Pistons from Top End Performance at this point.  They are at a good price point comparatively, and my machinist knows/trusts both those product lines.

 

Jose

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