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Open Roads Forum  >  Class A Motorhomes

 > Cummins Killer Dowel Pin

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Jim@HiTek

Gresham, OR, USA

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Posted: 03/07/12 06:27pm Link  |  Print  |  Notify Moderator

I have a Cummins 6BT5.9 engine with a CPL1261 Spec #. It's 5.9L, 190HP, 6 cyl, with turbo.

How can I tell if it potentially has the dreaded Killer Dowel Pin issue? Every thing is fine now, I just need to know if I should take care of it now.

Thanks.

Oh, I should mention that it has 158,000 miles on it.

* This post was edited 03/07/12 06:40pm by Jim@HiTek *


Jim@HiTek
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gss036

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Posted: 03/07/12 07:04pm Link  |  Print  |  Notify Moderator

I guess if it were mine and I planned on keeping the vehicle for a more years, I would buy the kit and either do it or pay the 2 hours labor. I think you can maybe find a shop to do it for under $100.00 hr. We have a local truck shop that works on RV engines etc for $85.00@hr and the do good work.

PapPappy

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Posted: 03/07/12 07:46pm Link  |  Print  |  Notify Moderator

If you are able to contact Cummings, you may be able to get some information from them, regarding the serial numbers and such.....if they have corrected this problem? Seems that it's an easy enough repair....and worth doing.


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wny_pat

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Posted: 03/07/12 09:12pm Link  |  Print  |  Notify Moderator

PapPappy wrote:

If you are able to contact Cummings, you may be able to get some information from them, regarding the serial numbers and such.....if they have corrected this problem? Seems that it's an easy enough repair....and worth doing.
Any 6BT5.9 can have it happen. And Cummins isn't going to help. They deny the problem. What it is is that the pressed in pin the aligns the timing gear cover can come loose and fall out down into the gears, or hopefully thru the gears into the pan. If it falls thru the gears no problem, but if it gets mixed up with the gears, then you have a problem. Worse part of the deal is that this can happen anytime during the life of the engine. One could go anywhere between 25,000 miles up to 500,000 miles and have it happen anytime. And then it may never come loose. It is a gamble!!! And then the fix is very cheap!!!

* This post was edited 03/07/12 09:35pm by wny_pat *


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Jim@HiTek

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Posted: 03/07/12 07:07pm Link  |  Print  |  Notify Moderator

Thanks, gss036, I'm down in Mexico right now and there are plenty of mechanicos who can get it done for far less the anyone in the US but I was wondering if mine is one of those engines that needs it. I've never found a list of serial numbers.

sjholt

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Posted: 03/07/12 07:12pm Link  |  Print  |  Notify Moderator

All 12 valve Cummins should have this checked ASAP.
Mine was sticking out about .3" and the dowel pin is barrel shaped- It would have come out soon.
Do yourself a big favor and get it done- I'm sure even south of the border diesel mechanics have done this. So get R' done.


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1996 32' Monaco Windsor DP
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Jim@HiTek

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Posted: 03/08/12 10:12am Link  |  Print  |  Notify Moderator

'Fraid not, Ona Whim. Check the link in my first post.

Pogoil

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Posted: 03/08/12 11:12am Link  |  Print  |  Notify Moderator

Is this a problem with the 6cta8.3 as well. Mine is a 1995 300 HP.

Thanks,

Pogoil.

Ona Whim

East Bernstadt, KY

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Posted: 03/08/12 06:58am Link  |  Print  |  Notify Moderator

Thanks wny pat!!! I have the 6BT5.9 230 hp. Cummins. Purchased little over two years ago. Has 70K miles. I had never heared of this. And reading the forum was at a loss what everyone was talking about. That what I like about this forum. Someone will know and explain it to us newby's.
Is this something that can be seen without removing the timing chain cover??

Yaj

The Milky Way Galaxy (Hartford, WI)

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Posted: 03/07/12 11:37pm Link  |  Print  |  Notify Moderator

I did mine last summer and the pin was about half way out!
It took way more than a few hours as there was no way to get to it without removing the radiator. I had to replace the radiator due to a bad leak so I did the pin at the same time. I was really glad I did it when I found it half way out.


1996 HR Endeavor LE,Cummins 5.9 230hp, Allison 3060,
Front-Yamaha Enduro, Rear-Honda Helix Geeser Cruiser, 2 bikes,
22ft 1977 Cruiser in tow.
1 DW, 2 kids.
1 old dog, 1 fat cat.
I wasn't thinking this far ahead!


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