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Old 06-25-2018, 03:50 PM   #17761
Rig Wrench
 
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Cummins made it 6k miles. Check out the pitting on the right one
Click the image to open in full size.

Really wondering if new heads have new valves or this is where the cores go.
Looks like they need to get some of that fine imolported canadian steal
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Old 06-25-2018, 06:11 PM   #17762
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Looks like they need to get some of that fine imolported canadian steal


I hear they have the best mills that only use the best ore.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 06-27-2018, 02:03 PM   #17763
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Just got my kitty cat put back together, after seeing all the scoring on my cam, cam rollers and rocker shafts I'm thinking the bearing material from my last turbo is what did those parts in. But #2 piston and liner were very scored and the head had a crack on #3 that was so bad we could hear it leaking compression when rolling it over by hand. Almost 1.7 mil on the motor and the deck had never been cut and where the liners were sinking into it were all uneven. Should have been done when the previous owner inframe it at a mil three.

Got it all back together last night and it's never ran so smooth in the year I've had it. Can't wait to hit the road with it this weekend and see how it does.
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Old 06-27-2018, 04:18 PM   #17764
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Pretty eroded around the water grommets.
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Old 06-28-2018, 07:59 AM   #17765
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What are you guys using for manifold studs/bolts for a 3406E? Have a broken one on the glider and figure we'll have to break off a few more to get it apart. Might as well change them all out.


Buy from CAT or something else?
Chris
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Old 06-28-2018, 09:09 AM   #17766
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What are you guys using for manifold studs/bolts for a 3406E? Have a broken one on the glider and figure we'll have to break off a few more to get it apart. Might as well change them all out.


Buy from CAT or something else?
Chris
https://magnumdiesel.com/documents/C...are%20kits.pdf
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Old 06-28-2018, 09:16 AM   #17767
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Link no work for me...


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There really is nothing better than OEM. That goes for anything from turbos to boobs.
RIP Dex KCCO
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Old 06-28-2018, 09:41 AM   #17768
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Worked for me. What the hell are exhaust sleeves and should I get them?

Chris
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Old 06-28-2018, 10:29 AM   #17769
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Worked for me. What the hell are exhaust sleeves and should I get them?

Chris


Yes, they create an air space to help keep exhaust heat out of the head/coolant. The cat ones are welded, the Magnum and IPD are one piece. Have seen a few cat ones break at the weld and go through turbo(s). Haven’t seen one broken in a long time thought.


For future reference no matter what electric car engine your working on (3406e/C15/C16Acert etc) if you order the head gasket set for an NXS serial you get WAY more stuff and they’re cheaper. Like MXS kit costs more and doesn’t come with exhaust sleeves where NXS does for less money. Makes no sense.
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Old 06-28-2018, 10:55 AM   #17770
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Gotcha. So, not knowing what Larson did, I should order the kit with exhaust sleeves.

Thank you!
Chris
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Old 06-28-2018, 12:16 PM   #17771
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Why couldnt someone have a copper gasket cut for these things. We run em on nitrous and FI race engines and theyre quite solid
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Old 06-28-2018, 02:22 PM   #17772
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Why couldnt someone have a copper gasket cut for these things. We run em on nitrous and FI race engines and theyre quite solid
For the exhaust?

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Old 06-28-2018, 03:16 PM   #17773
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For the exhaust?

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Head gasket. Sorry
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Old 06-28-2018, 03:24 PM   #17774
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Just used some ARPs on a B model
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Old 06-28-2018, 04:23 PM   #17775
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Why couldnt someone have a copper gasket cut for these things. We run em on nitrous and FI race engines and theyre quite solid


Gasket isn’t the issue.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 06-28-2018, 04:23 PM   #17776
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Truckers, lets see your rigs!

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Just used some ARPs on a B model


Hope those aren’t stainless.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 06-28-2018, 04:55 PM   #17777
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Gasket isn’t the issue.
How do the canadian uphill guys keep em together?
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Old 06-28-2018, 05:29 PM   #17778
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Hope those aren’t stainless.
I thought I was smart and used stainless on the turbo one time. It was super fun cutting them off with a hack saw blade held in vice grips.

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Old 06-28-2018, 05:37 PM   #17779
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Hope those aren’t stainless.
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I thought I was smart and used stainless on the turbo one time. It was super fun cutting them off with a hack saw blade held in vice grips.

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Stainless isn't better? We use stainless bolts and nuts on the manifold/turbo's on the 8.3L Cummins here at work and see way less trouble, and they usually come out better if we have to take them apart?

Chris
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Old 06-28-2018, 05:57 PM   #17780
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Stainless isn't better? We use stainless bolts and nuts on the manifold/turbo's on the 8.3L Cummins here at work and see way less trouble, and they usually come out better if we have to take them apart?

Chris
On mine it galled and they turned into permanent lock nuts. Stainless and something is usually fine, stainless/stainless not so much.

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