Keep us posted.
The question is how many made it into people's engines from that batch? The even bigger question is how will Callies handle it in terms of teardown etc if the crank is found to be bad from a manufacturing flaw.
LML Callies Durastar Crankshaft Issues??
- Thread starter Duramax_9505
- Start date
Keep us posted.
The question is how many made it into people's engines from that batch? The even bigger question is how will Callies handle it in terms of teardown etc if the crank is found to be bad from a manufacturing flaw.
Dang it Mark I had em believing Grant returned from the dead with that projection..
Actually seeing the Compstar issue up close is what got me concerned enough to pay heavy attention to my Ultras. It's either Mahle makes world's hardest thrust washers, or some metallurgy issue with that particular batch of Compstars.
But at the time, there wasn't enough data to say conclusively the issue was the latter. Seeing another one show up with same problem solved that for me.. Now Callies should have enough data to make the call on how, what, and how many is impacted.
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Callie’s numbers show this issue has affected less then 3% of compstars. Appears to be a taper issue and maybe the surface finish had some affect? 1.340-1.3425” between thrust faces. We only have a few out, no known issues yet. Will be measuring current job tomorrow.
Good morning, gentlemen. Keep an eye out these next couple of days as I am told Callies will be making a formal statement regarding this issue.
oops...
They build cranks for a lot other high performance applications and or markets besides diesels. Total faith they'll make it right.
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They build cranks for a lot other high performance applications and or markets besides diesels. Total faith they'll make it right.
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Any info on statement ? Have an lmm in Australia being built with a durastar crank that was bought at the start of the year. I'm now curious if this one might be effected. Don't want to put it together and it shit the bed. As this hasn't been cheap in Australia to do.
Socal just released this video. Maybe this has a lot to do with it.
https://m.youtube.com/watch?feature=youtu.be&v=fercbEg4Zww
https://m.youtube.com/watch?feature=youtu.be&v=fercbEg4Zww
Still nothing from Callies as far as I can tell. The ones that seemed to have failed haven't been in a shade tree mechanics engine, all from reputable shops it seems that know what they are doing.
This could be a much bigger issue but who knows yet. I know a friend of mine has one in his build and is quite concerned to the point where he is pulling the lower pan and using a camera to visually inspect everything.
OK I'll bite.
Show me another crank manufactures example with same point of failure then?
Educational, but irrelevant unless you can reproduce the issue across the board IMO.
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Not saying it's the cause. Just saying with the many thrust bearing issues they was seeing on social media and forums they produced the video.
Hey guys,
Gabe from SoCal Diesel here. We just wanted to get the video out with there being lots of talk surrounding thrust and crankshafts lately. Only spent about 20 minutes on the video due to the fact that we wanted to get it out there as quick as possible. We wanted the public to have information on how to properly set and check their thrust clearance on crankshafts from any manufacturer. Hopefully it helps guys putting these together sleep just a little better at night knowing they checked and confirmed their clearances. We are not saying that engine builders not checking thrust contributed to the issues being discussed on this thread, but there are a lot of DIY guys that follow these threads/our media outlets that might benefit from the information. With all of this being said, we're actively working with Engineering at Callies to develop more information.
Gabe from SoCal Diesel here. We just wanted to get the video out with there being lots of talk surrounding thrust and crankshafts lately. Only spent about 20 minutes on the video due to the fact that we wanted to get it out there as quick as possible. We wanted the public to have information on how to properly set and check their thrust clearance on crankshafts from any manufacturer. Hopefully it helps guys putting these together sleep just a little better at night knowing they checked and confirmed their clearances. We are not saying that engine builders not checking thrust contributed to the issues being discussed on this thread, but there are a lot of DIY guys that follow these threads/our media outlets that might benefit from the information. With all of this being said, we're actively working with Engineering at Callies to develop more information.
Thanks for the update Gabe.
Have they Rockwell tested the surfaces in question yet?
As Stingpuller posted above, thrust washer failures are not that uncommon in pulling applications with big spring pressure plates. My neighbors BBC truck ate a couple every season till he sorted it out. However, it never tore up the crank face like these examples.
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Have they Rockwell tested the surfaces in question yet?
As Stingpuller posted above, thrust washer failures are not that uncommon in pulling applications with big spring pressure plates. My neighbors BBC truck ate a couple every season till he sorted it out. However, it never tore up the crank face like these examples.
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It would be awesome if Callies just admitted they have a problem so guys who don't browse the forums could know they may have an issue.
I'm just glad I stumbled across this while trying to work something else out. Other wise the crank would of gone in by now.
Still haven't heard back from them yet. Hope I get a reply soon as this is going to cause a massive delay to my build if we have to get a replacement crank
I know it's springtime, but hearing crickets from up in Fostoria is a bit strange..
Kinda expected some sort of statement by now. Maybe they have someone out racking up 10k miles on a truck to verify it...
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Kinda expected some sort of statement by now. Maybe they have someone out racking up 10k miles on a truck to verify it...
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We installed a couple of motors for a guy last summer that had these cranks in them, and I know he has put over 10k miles on them by now. I sure hope his don't have this problem. We have another one sitting in a crate we are getting ready to install in a third truck for him with the same crank.
Easy enough to check em. As Gabe demonstrated, dial indicator on the damper and a big pry bar on the flywheel gonna tell ya real quick..
My monies on a batch issue, which should narrow it down easy enough. Or it could be a batch of super hard thrust washers flaoting around out there.
I also bought into the first batch of Fluidamper neutral balance units for my Ultras. 24hrs after torqued two of em down, one of the washers split into 4 pieces. Sent Ivan a picture, got a reply of oh s***... Seems he had just told someone else they must of over torqued the bolt. When it was actually an over hardened batch of washers. Easy fix, but took two people with same issue in 24hrs to make it click...
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My monies on a batch issue, which should narrow it down easy enough. Or it could be a batch of super hard thrust washers flaoting around out there.
I also bought into the first batch of Fluidamper neutral balance units for my Ultras. 24hrs after torqued two of em down, one of the washers split into 4 pieces. Sent Ivan a picture, got a reply of oh s***... Seems he had just told someone else they must of over torqued the bolt. When it was actually an over hardened batch of washers. Easy fix, but took two people with same issue in 24hrs to make it click...
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