Cummins Conversion Build

Reply Subscribe

Thread Tools

Search this Thread

Jun 25, 2012 | 11:48 PM

#211

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

Quote:

Originally Posted by fordpride

What do you call little? Can you feel it with the edge of your fingernail ?

You could try to polish It out with some 800 grit emery cloth and the follow that up with 1000 grit.

It's got a pretty nice gouge. I'm sure it will need to be turned.. The bearing has some wear on it.
I also got one cylinder with some wear. I think a good hone will fix it up. Now it's off to the cryo shop. Then we start putting it back together.
Name: Crank.jpg
Views: 206
Size: 93.9 KB

Name: Crank.jpg
Views: 206
Size: 93.9 KB

Jun 26, 2012 | 07:57 AM

#212

Snowseeker

Hotshot

Joined: May 2005

Posts: 13,484

Likes: 42

From: Stevens Point, WI

I wouldn't worry about that scratch to much. Polish or have someone polish off the burrs on the scratch and forget about it. It is in line with the oil journal and not across the bearing surface so it should not cause any excess wear or problems.

Jun 26, 2012 | 07:56 PM

#213

WA.Ranger

Postmaster

Joined: Jul 2004

Posts: 3,156

Likes: 0

From: Yuba City, CA.

Andrew, I would have the whole assembly balanced and blue printed if they don't charge too much.

Jun 26, 2012 | 08:04 PM

#214

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

Quote:

Originally Posted by WA.Ranger

Andrew, I would have the whole assembly balanced and blue printed if they don't charge too much.

We are already planning to do all that if we are gonna live at 4500rpm. Vroom vrooom

Jun 26, 2012 | 08:11 PM

#215

WA.Ranger

Postmaster

Joined: Jul 2004

Posts: 3,156

Likes: 0

From: Yuba City, CA.

Awesome. Like the others have said, a scratch isn't nothing to sweat, a gouge on the other hand...........

Jun 26, 2012 | 08:16 PM

#216

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

We will see what the machine shop can do. IM sure its nothing.terrible. we will get it right. Hoping to.drop off everything off for cryo within the.month

Jun 26, 2012 | 08:17 PM

#217

WA.Ranger

Postmaster

Joined: Jul 2004

Posts: 3,156

Likes: 0

From: Yuba City, CA.

That's great PPP, it just seems like yesterday, or maybe 3 years ago we were talking about this late at night! LOL. Glad to see you are doing it!

Jun 26, 2012 | 10:28 PM

#218

OTTOMATIC

Senior User

Joined: Dec 2003

Posts: 331

Likes: 1

From: fl

Great thread. Especialy since I just picked up a 12v cummins disassembled that had over $350 worth of machine work. I got head , block (bored) crank & cam ,pistons rods & valves.
all for 400. It was on flea bay. He started @ 850.

FTE Stories

Ford Trucks for Ford Truck Enthusiasts

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Top 10 Ford Trucks Coming to Mecum Indy 2026

Brett Foote

5 Best / 5 Worst Ford Truck Wheels of All Time

Joe Kucinski

Jun 27, 2012 | 08:44 AM

#219

SuperDoodie

Elder User

Joined: May 2008

Posts: 860

Likes: 2

From: Liberty Lake, WA

Looking good Andrew.

Jun 29, 2012 | 10:12 PM

#220

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

Here are the main bearings. something got in there.

Name: 018.jpg
Views: 171
Size: 78.0 KB

they are sitting by new bearings for comparison

Jun 29, 2012 | 11:08 PM

#221

farmb0y

Posting Guru

Joined: Feb 2004

Posts: 2,365

Likes: 0

From: IOWA

Might as well put all new parts in it while its tore down. Would hate to hafta tear it all apart a second time. Keep up the good work!

Jun 30, 2012 | 12:22 AM

#222

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

It will get all new stuff.. with cryo'd teflon coated goodness.

Jun 30, 2012 | 12:46 AM

#223

WA.Ranger

Postmaster

Joined: Jul 2004

Posts: 3,156

Likes: 0

From: Yuba City, CA.

I wonder how many miles this motor would be good for with all the cryo'd this and Teflon coated that, balanced and blue printed, if it was kept at say 400 hp with good maintenance? I bet that thing would go a life time. Just posing a question.

Jun 30, 2012 | 07:57 AM

#224

jkidd_39

Thread Starter

Posting Guru

Joined: Dec 2003

Posts: 2,392

Likes: 0

From: NW Arkansas

Quote:

Originally Posted by WA.Ranger

What's to say it wont last at our goal of 1000hp?? We will overbuild the top end to spin at 5k. The rods are good to 1200hp. We will have ambient air intake temps thanks to an air to water intercooler and a big tank of ice water.

I think this engine will hold up great. IM hoping at least. Haha

Jun 30, 2012 | 03:03 PM

#225

WA.Ranger

Postmaster

Joined: Jul 2004

Posts: 3,156

Likes: 0

From: Yuba City, CA.

I totally agree. I'm just curious what it would do if all the best parts and machining techniques were used, how long would it last. I know it will be fine at the power levels you're looking to achieve.