Head gasket woes
Well, just got back from a 400 mile round trip pulling a 15K boat and spotted a small coolant stain at the right front corner of the block/head area under the hose inlet...thinkin head gasket[verymad]
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Originally Posted by SIXSLUG
(Post 3309470)
Well, just got back from a 400 mile round trip pulling a 15K boat and spotted a small coolant stain at the right front corner of the block/head area under the hose inlet...thinkin head gasket[verymad]
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I seem to remember between cylinders was the first place to start looking when tearing down...
Not sure if I'll tackle myself or just get it done... |
first it's just a 4 valve per cylinder straight 6 cylinder , ..:)
but the head bolts have to be tossed & replaced,. ,!!!! to torque vie the torque pattern , go 60 lbs 3 times , weight 10 min. go to 90 lbs 3 times weight 10 min then go to 120 lbs 3 times,. then hang out for about 20 to 30 min. , then give each bolt 1/2 turn once each ,. it must be about 200 lbs , but it's finale Spec. is left to stretch 1/2 turn past 120 lbs. . that's when you need a 3/4 in beaker bar with a long *** handle,., like 3 feet..+ the parts are big and heavy , for sure,., i did mine in 2009 , and it's still fine..7 years later. BTW- Cummins , is very proud of there head gaskets,.., like $800.00 for a full engine set. |
Swapping the head gasket is not that hard if you have a cherry picker. I took my time and did it over a day and a half. Yea, I'm old and slow. Some specs from the service manual:
https://cimg4.ibsrv.net/gimg/www.die...6e3143d49d.png https://cimg7.ibsrv.net/gimg/www.die...03e634cf4c.png |
Darn thing isn't using coolant and hasn't re-stained the area I saw it after cleaning it.
I'm watchin it closely, should I just get it over with or drive it til it shows more like failing?? |
Some will quit leaking for a year or two from what I have seen, then start for no good reason. Kind of frustrating! Pretty easy job, engine hoist is a must if your alone. Otherwise I have done them without and another guy. Cleanliness is a must. Some of those years have issues with rocker arm bolts pulling the treads out when reinstalling. I can't remember the tread pitch or size off the top of my head but helicoils work just fine.
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Thanks for all the advice, guys.
I'm keeping my eye on it for now. |
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