Main IndexAuto Repair Home Search Posts SEARCH
POSTS 		Who's Online WHO'S
ONLINE 		Log in LOG
IN




Automotive Repair
Car Troubleshooting Topics
  Car Troubleshooting
  Engine Troubleshooting
  Engine Fault Codes
  Electrical and Wiring
  Transmission Problems

Car Repair Topics
  Car Making Noises
  Car Stereo Repair
  Heating or AC Issues
  Motorcycles and ATVs
  Tricks of the Trade
  Truck Repair Advice

Site Options:   
  Login
  Sign up here!



Latest Forum Post
with_replies.gif image   Lukewarm Heat............
New antifreeze reverse flush heater core...

with_replies.gif image   multiple warning lights
2013 GMC Terrain 130,000 miles 4 cylinde...

with_replies.gif image   2014 Nissan Sentra Shaking
Car recently started shaking when accele...

no_replies.gif image   Buy Flualprazolam Powder Online Whatsapp: +1(424) 328-1086
N/A

hot_with_replies.gif image   1989 toyota pickup 3.0 crank no start
I have a 1989 toyota pickup 3.0 crank no...

with_replies.gif image   Strut spring orientation and strut mount tension nut
2017 Nissan rogue awd 2.5 L Put in Monro...

with_replies.gif image   Transmission stuck in part, I have tried everything
So I'm working on my elderly fathers 201...

with_replies.gif image   2017 dodge journey LED headlights on/off randomly
Year of vehicle 2017 Make of vehicle dod...

with_replies.gif image   Kia Soul starter replacement issues!
Okay so my car is a 2010 Kia soul 2.0 en...

hot_with_replies.gif image   Please Help - Knock sound & engine fail
Hi all, Hoping to get some insight and ...




6.2 diesel crankshaft ?

Search for (search options)
 



valleybusman
User

Oct 25, 2013, 9:17 PM

Post #1 of 3 (2337 views)
6.2 diesel crankshaft ? Sign In
Okay I have a 83 6.2 diesel with over 20000 miles on her.The engine is n afull size Blazer with an automatic.Not sure where this question should go.@ years ago it threw a rod in the number 2 cylinder.Rod went through oil pan and chewed up crank.I was told not machine the crank down.I was told it needed to nitraded afterwards.I decided to go though GM and buy a new one.Well that didn't work they don't have one anywhere.I got a part number from GM and did my own search and found one.Before I lay out 500 for this crank,is there place to buy a crank and how are they are as well as nitrating and holding up and what I should look for I am wondering if I can get my old crank turned Thanks


nickwarner
Veteran / Moderator
nickwarner profile image

Oct 26, 2013, 2:32 AM

Post #2 of 3 (2321 views)
Re: 6.2 diesel crankshaft ? Sign In
Who told you not to machine the crank? If you toss a rod you need to repair damage to the crank journals before you can use it in anything else. Any competent machine shop can do that job for well under what you are looking to spend on a different one. There shouldn't be any other treatment needed, just grind and polish to the next undersize.

These engines were made by Detroit Diesel, a GM subsidiary. The last one I rebuilt was a 12.7L series 60 and it had spun a rod bearing. The only thing the machine shop needed to do was machine it to the proper undersize. I even looked into the factory service manual and that was all they called for.

Let a good machine shop have a look at your old crank before you lay down that kind of money on a new one. Make sure it gets magnafluxed too, you don't want a crack you can't even see with your eyes to derail this project.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Oct 26, 2013, 7:15 AM

Post #3 of 3 (2309 views)
Re: 6.2 diesel crankshaft ? Sign In
I did a search and ran across this. I'm not a machinist, but the company that wrote this does nitriding. If your old crank needs to be turned more than what was stated, you could have a company re nitride it for you.

Quote
Nitrided crankshafts can easily be welded and ground without concern. A .010 undersize grind will cause some of the benefits of nitriding to be lost. At .030+ undersize, nearly all of the nitriding benefits are lost. Therefore, it is recommended to have the crankshaft hardened again after grinding.
This is the source: http://www.crankshaftco.com/steel-crankshaft-hardening.html





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.





 
 
 






Search for (options) Privacy Sitemap