L5P will barely start, then die Please Help

[Rdomeck]

I will grab a picture in the morning.

What are your guys thoughts on honing one of these blocks with induction hardened cylinder walls? Also, I did not find any +size bearings when calling around today. Have a few others to call tomorrow.

Thinking I might buy an engine that has been in a fire, but not totally melted. Completely disassemble, clean and reseal. Not a huge difference in parts and machining to go that route!

Thoughts?

 

[1FastBrick]

The walls are hard as hell. They can be honed though. We took mine .020 with diamond stones and measuring the surface finish. Just took longer than anticipated is all.

 

[Rdomeck]

Honing plate required?

Anyone ever line bore for +size mains on an L5P?

 

[1FastBrick]

Honing plate required?

Anyone ever line bore for +size mains on an L5P?

If your going Oversize on the bore, I would. With my LBZ block we saw an average .0015 distortion. As much as .002 total in some area's

I don't know that they can be line bored over sized. Depending on the damage they might clean up with a hone. Are both blocks mains spun?

 

[Rdomeck]

Yep, #3 and #4 are spun on both the block and cap. I believe I will be buy an engine to tear down. Get rid of this block that was in a wreck and may very well be cracked

It was hit hard enough in the wreck that the timing gears left a mark on the block. I know these blocks are strong, but damn. I would expect the cam gear and thats why I replaced it... But the crank gear....

 

[1FastBrick]

No one had a torque plate for a duramax near me.

I tried to get a high end one but none were on the shelf at the time and they wouldn't even give me a time line to make one.

I found ICT Billet makes one and that's what I purchased. Just need some 1 inch spacers which my machinest had.

 

[1FastBrick]

Yep, #3 and #4 are spun on both the block and cap. I believe I will be buy an engine to tear down. Get rid of this block that was in a wreck and may very well be cracked

It was hit hard enough in the wreck that the timing gears left a mark on the block. I know these blocks are strong, but damn. I would expect the cam gear and thats why I replaced it... But the crank gear....

Ouch, that's probably what took out the thrust and may have bent the crank.

 

[1FastBrick]

Be careful with a burnt engine. If it was burned from the bottom up, the caps can and will distort from the heat. It can cost more to correct than its worth sometimes.